Mercurial > dive4elements > framework
annotate artifact-database/src/main/java/de/intevation/artifactdatabase/Backend.java @ 303:190aa68ae7a8
Added method to artifact database to load all artifacts.
artifacts/trunk@2408 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Wed, 27 Jul 2011 09:32:26 +0000 |
parents | b0a949d3fe09 |
children | f33401ea2a6c |
rev | line source |
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1 /* |
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2 * Copyright (c) 2010, 2011 by Intevation GmbH |
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3 * |
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4 * This program is free software under the LGPL (>=v2.1) |
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5 * Read the file LGPL.txt coming with the software for details |
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6 * or visit http://www.gnu.org/licenses/ if it does not exist. |
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7 */ |
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8 package de.intevation.artifactdatabase; |
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9 |
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Implemented the createCollection() method in the artifact database.
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10 import de.intevation.artifacts.Artifact; |
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11 import de.intevation.artifacts.ArtifactCollection; |
158
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12 import de.intevation.artifacts.ArtifactCollectionFactory; |
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13 import de.intevation.artifacts.ArtifactDatabase.ArtifactLoadedCallback; |
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14 import de.intevation.artifacts.ArtifactFactory; |
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15 import de.intevation.artifacts.ArtifactSerializer; |
186
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16 import de.intevation.artifacts.CollectionItem; |
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17 import de.intevation.artifacts.User; |
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18 import de.intevation.artifacts.UserFactory; |
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19 |
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20 import de.intevation.artifacts.common.utils.StringUtils; |
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21 import de.intevation.artifacts.common.utils.XMLUtils; |
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22 |
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23 import java.sql.SQLException; |
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24 import java.sql.Timestamp; |
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25 import java.sql.Types; |
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26 |
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27 import java.util.ArrayList; |
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28 import java.util.Date; |
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29 import java.util.Map; |
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30 import java.util.LinkedHashMap; |
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31 import java.util.HashMap; |
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32 |
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Integrated logging into artifact database.
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33 import org.apache.log4j.Logger; |
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34 |
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35 import org.w3c.dom.Document; |
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36 |
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37 /** |
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38 * The backend implements the low level layer used to store artifacts |
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39 * in a SQL database. |
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40 * |
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41 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a> |
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42 */ |
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43 public class Backend |
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44 implements DatabaseCleaner.ArtifactReviver |
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45 { |
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46 private static Logger logger = Logger.getLogger(Backend.class); |
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47 |
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48 /** |
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49 * The SQL statement to create new artifact id inside the database. |
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50 */ |
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51 public static final String SQL_NEXT_ID = |
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52 SQL.get("artifacts.id.nextval"); |
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53 |
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54 /** |
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55 * The SQL statement to insert an artifact into the database. |
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56 */ |
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57 public static final String SQL_INSERT = |
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58 SQL.get("artifacts.insert"); |
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59 |
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60 /** |
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61 * The SQL statement to update some columns of an existing |
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62 * artifact in the database. |
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63 */ |
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64 public static final String SQL_UPDATE = |
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65 SQL.get("artifacts.update"); |
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66 |
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67 /** |
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68 * The SQL statement to touch the access time of an |
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69 * artifact inside the database. |
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70 */ |
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71 public static final String SQL_TOUCH = |
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72 SQL.get("artifacts.touch"); |
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73 |
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74 /** |
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75 * The SQL statement to load an artifact by a given |
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76 * identifier from the database. |
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77 */ |
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78 public static final String SQL_LOAD_BY_GID = |
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79 SQL.get("artifacts.select.gid"); |
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80 |
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81 /** |
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82 * The SQL statement to get the database id of an artifact |
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83 * identified by the identifier. |
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84 */ |
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85 public static final String SQL_GET_ID = |
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86 SQL.get("artifacts.get.id"); |
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87 |
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88 /** |
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89 * The SQL statement to replace the content of an |
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90 * existing artifact inside the database. |
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91 */ |
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92 public static final String SQL_REPLACE = |
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93 SQL.get("artifacts.replace"); |
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94 |
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95 // USER SQL |
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96 |
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97 public static final String SQL_USERS_NEXT_ID = |
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98 SQL.get("users.id.nextval"); |
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99 |
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100 public static final String SQL_USERS_INSERT = |
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101 SQL.get("users.insert"); |
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102 |
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103 public static final String SQL_USERS_SELECT_ID_BY_GID = |
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104 SQL.get("users.select.id.by.gid"); |
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105 |
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106 public static final String SQL_USERS_SELECT_GID = |
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107 SQL.get("users.select.gid"); |
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108 |
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109 public static final String SQL_USERS_DELETE_ID = |
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110 SQL.get("users.delete.id"); |
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111 |
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112 public static final String SQL_USERS_DELETE_COLLECTIONS = |
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113 SQL.get("users.delete.collections"); |
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114 |
148
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115 public static final String SQL_USERS_SELECT_ALL = |
133
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116 SQL.get("users.select.all"); |
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117 |
144
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118 public static final String SQL_USERS_COLLECTIONS = |
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119 SQL.get("users.collections"); |
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120 |
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121 public static final String SQL_USERS_COLLECTION_IDS = |
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122 SQL.get("users.collection.ids"); |
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123 |
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124 public static final String SQL_USERS_DELETE_ALL_COLLECTIONS = |
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125 SQL.get("users.delete.all.collections"); |
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126 |
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127 public static final String SQL_ARTIFACTS_IN_ONLY_COLLECTION_ONLY = |
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128 SQL.get("artifacts.in.one.collection.only"); |
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129 |
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130 public static final String SQL_OUTDATE_ARTIFACTS_COLLECTION = |
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131 SQL.get("outdate.artifacts.collection"); |
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132 |
273
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133 public static final String SQL_UPDATE_COLLECTION_TTL = |
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134 SQL.get("collections.update.ttl"); |
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135 |
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136 public static final String SQL_UPDATE_COLLECTION_NAME = |
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137 SQL.get("collections.update.name"); |
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138 |
144
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139 public static final String SQL_OUTDATE_ARTIFACTS_USER = |
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140 SQL.get("outdate.artifacts.user"); |
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141 |
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142 public static final String SQL_DELETE_USER_COLLECTION_ITEMS = |
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143 SQL.get("delete.user.collection.items"); |
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144 |
159
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145 public static final String SQL_COLLECTIONS_NEXT_ID = |
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146 SQL.get("collections.id.nextval"); |
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147 |
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148 public static final String SQL_COLLECTIONS_INSERT = |
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149 SQL.get("collections.insert"); |
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150 |
167
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151 public static final String SQL_COLLECTIONS_SELECT_USER = |
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152 SQL.get("collections.select.user"); |
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153 |
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154 public static final String SQL_COLLECTIONS_SELECT_ALL = |
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155 SQL.get("collections.select.all"); |
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156 |
217
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157 public static final String SQL_COLLECTIONS_SELECT_GID = |
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158 SQL.get("collections.select.by.gid"); |
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159 |
170
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160 public static final String SQL_COLLECTIONS_CREATION_TIME = |
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161 SQL.get("collection.creation.time"); |
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162 |
175
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163 public static final String SQL_COLLECTIONS_ID_BY_GID = |
187
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164 SQL.get("collections.id.by.gid"); |
175
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165 |
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166 public static final String SQL_DELETE_COLLECTION_ITEMS = |
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167 SQL.get("delete.collection.items"); |
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168 |
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169 public static final String SQL_DELETE_COLLECTION = |
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170 SQL.get("delete.collection"); |
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171 |
176
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172 public static final String SQL_COLLECTION_CHECK_ARTIFACT = |
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173 SQL.get("collection.check.artifact"); |
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174 |
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175 public static final String SQL_COLLECTION_ITEMS_ID_NEXTVAL = |
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176 SQL.get("collection.items.id.nextval"); |
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177 |
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178 public static final String SQL_COLLECTION_ITEMS_INSERT = |
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179 SQL.get("collection.items.insert"); |
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180 |
253
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181 public static final String SQL_COLLECTION_GET_ATTRIBUTE = |
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182 SQL.get("collection.get.attribute"); |
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183 |
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184 public static final String SQL_COLLECTION_SET_ATTRIBUTE = |
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185 SQL.get("collection.set.attribute"); |
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186 |
178
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187 public static final String SQL_COLLECTION_ITEM_GET_ATTRIBUTE = |
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188 SQL.get("collection.item.get.attribute"); |
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189 |
179
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190 public static final String SQL_COLLECTION_ITEM_SET_ATTRIBUTE = |
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191 SQL.get("collection.item.set.attribute"); |
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192 |
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193 public static final String SQL_COLLECTIONS_TOUCH_BY_GID = |
180
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194 SQL.get("collections.touch.by.gid"); |
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195 |
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196 public static final String SQL_COLLECTION_ITEM_ID_CID_AID = |
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197 SQL.get("collection.item.id.cid.aid"); |
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198 |
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199 public static final String SQL_COLLECTION_ITEM_OUTDATE_ARTIFACT = |
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200 SQL.get("collection.item.outdate.artifact"); |
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201 |
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202 public static final String SQL_COLLECTION_ITEM_DELETE = |
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203 SQL.get("collection.item.delete"); |
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204 |
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205 public static final String SQL_COLLECTIONS_TOUCH_BY_ID = |
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206 SQL.get("collections.touch.by.id"); |
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207 |
184
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208 public static final String SQL_COLLECTION_ITEMS_LIST_GID = |
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209 SQL.get("collection.items.list.gid"); |
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210 |
303
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211 public static final String SQL_ALL_ARTIFACTS = |
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212 SQL.get("all.artifacts"); |
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213 |
128
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214 /** The singleton.*/ |
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215 protected static Backend instance; |
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216 |
90
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217 /** |
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218 * The database cleaner. Reference is stored here because |
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219 * the cleaner is woken up if the backend finds an outdated |
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220 * artifact. This artifact should be removed as soon as |
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221 * possible. |
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222 */ |
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223 protected DatabaseCleaner cleaner; |
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224 |
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225 /** |
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226 * To revive an artifact from the bytes coming from the database |
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227 * we need the artifact factory which references the artifact |
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228 * serializer which is able to do the reviving job. |
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229 */ |
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230 protected FactoryLookup factoryLookup; |
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231 |
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232 /** |
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233 * Little helper interface to decouple the ArtifactDatabase |
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234 * from the Backend. A ArtifactDatabase should depend on a |
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235 * Backend but a Backend not from an ArtifactDatabase. |
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236 */ |
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237 public interface FactoryLookup { |
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238 |
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239 /** |
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240 * Returns an ArtifactFactory which is bound to a given name. |
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241 * @param factoryName The name of the artifact factory. |
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242 * @return The ArtifactFactory bound to the factory name or |
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243 * null if not matching factory is found. |
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244 */ |
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245 ArtifactFactory getArtifactFactory(String factoryName); |
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246 |
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247 } // interface FactoryLookup |
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248 |
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249 /** |
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250 * Inner class that brigdes between the persisten form of the |
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251 * artifact and the living one inside the artifact database. |
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252 * After the describe(), feed(), advance() and out() operations |
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253 * of the artifact it must be possible to write to modified artifact |
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254 * back into the database. |
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255 */ |
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256 public final class PersistentArtifact |
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257 { |
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258 private int id; |
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259 private Artifact artifact; |
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260 private ArtifactSerializer serializer; |
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261 private Long ttl; |
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262 |
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263 /** |
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264 * Cronstructor to create a persistent artifact. |
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265 * @param artifact The living artifact. |
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266 * @param serializer The serializer to store the artifact |
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267 * after the operations. |
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268 * @param ttl The time to life of the artifact. |
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269 * @param id The database id of the artifact. |
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270 */ |
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271 public PersistentArtifact( |
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272 Artifact artifact, |
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273 ArtifactSerializer serializer, |
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274 Long ttl, |
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275 int id |
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276 ) { |
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277 this.id = id; |
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278 this.artifact = artifact; |
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279 this.serializer = serializer; |
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280 this.ttl = ttl; |
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281 } |
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282 |
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283 public int getId() { |
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284 return id; |
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285 } |
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286 |
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287 /** |
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288 * Returns the wrapped living artifact. |
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289 * @return the living artifact. |
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290 */ |
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291 public Artifact getArtifact() { |
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292 return artifact; |
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293 } |
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294 |
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295 /** |
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296 * Returns the serialized which is able to write a |
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297 * modified artifact back into the database. |
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298 * @return The serializer. |
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299 */ |
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300 public ArtifactSerializer getSerializer() { |
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301 return serializer; |
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302 } |
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303 |
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304 /** |
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305 * The time to life of the artifact. |
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306 * @return The time to live. |
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307 */ |
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308 public Long getTTL() { |
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309 return ttl; |
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310 } |
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311 |
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312 /** |
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313 * Stores the living artifact back into the database. |
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314 */ |
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315 public void store() { |
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316 if (logger.isDebugEnabled()) { |
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317 logger.debug("storing artifact id = " + getId()); |
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318 } |
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319 Backend.this.store(this); |
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320 } |
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321 |
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322 /** |
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323 * Only touches the access time of the artifact. |
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324 */ |
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325 public void touch() { |
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326 if (logger.isDebugEnabled()) { |
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327 logger.debug("touching artifact id = " + getId()); |
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328 } |
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329 Backend.this.touch(this); |
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330 } |
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331 } // class ArtifactWithId |
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332 |
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333 /** |
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334 * Default constructor |
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335 */ |
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336 public Backend() { |
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337 } |
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338 |
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339 /** |
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340 * Constructor to create a backend with a link to the database cleaner. |
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341 * @param cleaner The clean which periodically removes outdated |
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342 * artifacts from the database. |
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343 */ |
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344 public Backend(DatabaseCleaner cleaner) { |
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345 this.cleaner = cleaner; |
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346 } |
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347 |
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348 |
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349 /** |
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350 * Returns the singleton of this Backend. |
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351 * |
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352 * @return the backend. |
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353 */ |
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354 public static synchronized Backend getInstance() { |
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355 if (instance == null) { |
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356 instance = new Backend(); |
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357 } |
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358 |
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359 return instance; |
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360 } |
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361 |
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362 /** |
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363 * Sets the factory lookup mechanism to decouple ArtifactDatabase |
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364 * and Backend. |
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365 * @param factoryLookup |
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366 */ |
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367 public void setFactoryLookup(FactoryLookup factoryLookup) { |
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368 this.factoryLookup = factoryLookup; |
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369 } |
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370 |
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371 /** |
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372 * Sets the database cleaner explicitly. |
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373 * @param cleaner The database cleaner |
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374 */ |
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375 public void setCleaner(DatabaseCleaner cleaner) { |
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376 this.cleaner = cleaner; |
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377 } |
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378 |
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379 /** |
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380 * Returns a new unique identifier to external identify |
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381 * the artifact across the system. This implementation |
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382 * uses random UUIDs v4 to achieve this target. |
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383 * @return the new identifier |
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384 */ |
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385 public String newIdentifier() { |
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386 // TODO: check database for collisions. |
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387 return StringUtils.newUUID(); |
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388 } |
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389 |
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390 public boolean isValidIdentifier(String identifier) { |
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391 return StringUtils.checkUUID(identifier); |
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392 } |
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393 |
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394 /** |
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395 * Stores a new artifact into the database. |
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396 * @param artifact The artifact to be stored |
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397 * @param factory The factory which build the artifact |
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398 * @param ttl The initial time to life of the artifact. |
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399 * @return A persistent wrapper around the living |
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400 * artifact to be able to write modification later. |
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401 * @throws Exception Thrown if something went wrong with the |
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402 * storage process. |
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403 */ |
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404 public PersistentArtifact storeInitially( |
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405 Artifact artifact, |
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406 ArtifactFactory factory, |
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407 Long ttl |
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408 ) |
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409 throws Exception |
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410 { |
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411 return new PersistentArtifact( |
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412 artifact, |
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413 factory.getSerializer(), |
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414 ttl, |
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415 insertDatabase(artifact, factory, ttl)); |
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416 } |
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417 |
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418 /** |
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419 * Stores an artifact into database if it does not exist there. |
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420 * If it exists there it is only updated. |
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421 * @param artifact The artifact to store/update. |
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422 * @param factory The factory which created the artifact. |
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423 * @param ttl The initial time to live of the artifact. |
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424 * @return A persistent version of the artifact to be able |
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425 * to store a modification later. |
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426 * @throws Exception Thrown if something went wrong during |
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427 * storing/updating. |
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428 */ |
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429 public PersistentArtifact storeOrReplace( |
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430 Artifact artifact, |
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431 ArtifactFactory factory, |
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432 Long ttl |
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433 ) |
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434 throws Exception |
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435 { |
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436 return new PersistentArtifact( |
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437 artifact, |
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438 factory.getSerializer(), |
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439 ttl, |
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440 storeOrReplaceDatabase(artifact, factory, ttl)); |
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441 } |
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442 |
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443 /** |
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444 * Implementors of this interface are able to process the raw |
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445 * artifact data from the database for loading. |
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446 */ |
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447 public interface ArtifactLoader { |
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448 |
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449 /** |
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450 * Creates a custom object from the raw artifact database data. |
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451 * @param factory The factory that created this artifact. |
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452 * @param ttl The current time to life of the artifact. |
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453 * @param bytes The raw artifact bytes from the database. |
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454 * @param id The database id of the artifact. |
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455 * @return The custom object created by the implementation. |
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456 */ |
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457 Object load(ArtifactFactory factory, Long ttl, byte [] bytes, int id); |
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458 |
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459 } // interface ArtifactLoader |
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460 |
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461 /** |
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462 * Fetches an artifact from the database identified by the |
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463 * given identifier. |
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464 * @param identifer The identifier of the artifact. |
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465 * @return A persistent wrapper around the found artifact |
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466 * to be able to write back a modifaction later or null |
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467 * if no artifact is found for this identifier. |
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468 */ |
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469 public PersistentArtifact getArtifact(String identifer) { |
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470 |
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471 return (PersistentArtifact)loadArtifact( |
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472 identifer, |
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473 new ArtifactLoader() { |
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474 |
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475 public Object load( |
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476 ArtifactFactory factory, |
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477 Long ttl, |
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478 byte [] bytes, |
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479 int id |
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480 ) { |
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481 ArtifactSerializer serializer = factory.getSerializer(); |
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482 |
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483 Artifact artifact = serializer.fromBytes(bytes); |
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484 |
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485 return artifact == null |
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486 ? null |
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487 : new PersistentArtifact(artifact, serializer, ttl, id); |
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488 } |
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489 }); |
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490 } |
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491 |
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492 /** |
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493 * More general loading mechanism for artifacts. The concrete |
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494 * load processing is delegated to the given loader. |
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495 * @param identifer The identifier of the artifact. |
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496 * @param loader The loader which processes the raw database data. |
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497 * @return The object created by the loader. |
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498 */ |
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499 public Object loadArtifact( |
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500 final String identifer, |
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501 final ArtifactLoader loader |
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502 ) { |
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503 if (!isValidIdentifier(identifer)) { |
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504 return null; |
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505 } |
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506 |
303
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507 if (factoryLookup == null) { |
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508 logger.error("factory lookup == null"); |
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509 return false; |
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510 } |
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511 |
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512 final Object [] loaded = new Object[1]; |
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513 |
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514 SQLExecutor exec = new SQLExecutor() { |
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515 public boolean doIt() throws SQLException { |
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516 prepareStatement(SQL_LOAD_BY_GID); |
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517 stmnt.setString(1, identifer); |
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518 |
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519 result = stmnt.executeQuery(); |
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520 |
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521 if (!result.next()) { |
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522 return false; |
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523 } |
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524 |
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525 int id = result.getInt(1); |
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526 long ttlX = result.getLong(2); |
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527 Long ttl = result.wasNull() ? null : ttlX; |
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528 |
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529 String factoryName = result.getString(3); |
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530 |
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531 ArtifactFactory factory = factoryLookup |
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532 .getArtifactFactory(factoryName); |
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533 |
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534 if (factory == null) { |
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535 logger.error("factory '" + factoryName + "' not found"); |
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536 return false; |
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537 } |
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538 |
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539 byte [] bytes = result.getBytes(4); |
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540 |
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541 loaded[0] = loader.load(factory, ttl, bytes, id); |
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542 return true; |
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543 } |
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544 }; |
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545 |
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546 return exec.runRead() ? loaded[0] : null; |
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547 } |
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548 |
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549 /** |
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550 * Called if the load mechanism found an outdated artifact. |
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551 * It wakes up the database cleaner. |
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552 * @param id The id of the outdated artifact. |
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553 */ |
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554 protected void artifactOutdated(int id) { |
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555 if (logger.isDebugEnabled()) { |
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556 logger.info("artifactOutdated: id = " + id); |
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557 } |
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558 if (cleaner != null) { |
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559 cleaner.wakeup(); |
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560 } |
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561 } |
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562 |
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563 public Artifact reviveArtifact(String factoryName, byte [] bytes) { |
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564 if (factoryLookup == null) { |
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565 logger.error("reviveArtifact: factory lookup == null"); |
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566 return null; |
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567 } |
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568 ArtifactFactory factory = factoryLookup |
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569 .getArtifactFactory(factoryName); |
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570 |
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571 if (factory == null) { |
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572 logger.error( |
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573 "reviveArtifact: no factory '" + factoryName + "' found"); |
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574 return null; |
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575 } |
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576 |
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577 ArtifactSerializer serializer = factory.getSerializer(); |
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578 |
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579 return serializer.fromBytes(bytes); |
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580 } |
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581 |
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582 /** |
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583 * Internal method to store/replace an artifact inside the database. |
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584 * If an artifact with the given identifier does not exists it is |
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585 * created else only the content data is updated. |
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586 * @param artifact The artifact to be store/update inside the database. |
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587 * @param factory The factory that created the artifact. |
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588 * @param ttl The initial time to life of the artifact. |
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589 * @return The database id of the stored/updated artifact. |
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590 */ |
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591 protected int storeOrReplaceDatabase( |
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592 final Artifact artifact, |
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593 final ArtifactFactory factory, |
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594 final Long ttl |
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595 ) { |
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596 final String uuid = artifact.identifier(); |
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597 |
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598 if (!isValidIdentifier(uuid)) { |
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599 throw new RuntimeException("No valid UUID"); |
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600 } |
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601 |
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602 final int [] id = new int[1]; |
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603 |
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604 SQLExecutor exec = new SQLExecutor() { |
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605 public boolean doIt() throws SQLException { |
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606 |
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607 prepareStatement(SQL_GET_ID); |
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608 stmnt.setString(1, uuid); |
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609 result = stmnt.executeQuery(); |
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610 |
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611 Integer ID = result.next() |
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612 ? Integer.valueOf(result.getInt(1)) |
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613 : null; |
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614 |
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615 reset(); |
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616 |
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617 if (ID != null) { // already in database |
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618 prepareStatement(SQL_REPLACE); |
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619 |
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620 if (ttl == null) { |
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621 stmnt.setNull(1, Types.BIGINT); |
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622 } |
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623 else { |
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624 stmnt.setLong(1, ttl.longValue()); |
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625 } |
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626 |
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627 stmnt.setString(2, factory.getName()); |
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628 stmnt.setBytes( |
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629 3, |
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630 factory.getSerializer().toBytes(artifact)); |
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631 id[0] = ID.intValue(); |
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632 stmnt.setInt(4, id[0]); |
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633 } |
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634 else { // new artifact |
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635 prepareStatement(SQL_NEXT_ID); |
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636 result = stmnt.executeQuery(); |
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637 |
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638 if (!result.next()) { |
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639 logger.error("No id generated"); |
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640 return false; |
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641 } |
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642 |
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643 reset(); |
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644 |
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645 prepareStatement(SQL_INSERT); |
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646 |
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647 id[0] = result.getInt(1); |
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648 stmnt.setInt(1, id[0]); |
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649 stmnt.setString(2, uuid); |
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650 if (ttl == null) { |
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651 stmnt.setNull(3, Types.BIGINT); |
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652 } |
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653 else { |
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654 stmnt.setLong(3, ttl.longValue()); |
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655 } |
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656 |
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657 stmnt.setString(4, factory.getName()); |
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658 |
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659 stmnt.setBytes( |
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660 5, |
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661 factory.getSerializer().toBytes(artifact)); |
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662 } |
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663 stmnt.execute(); |
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664 conn.commit(); |
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665 return true; |
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666 } |
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667 }; |
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668 |
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669 if (!exec.runWrite()) { |
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670 throw new RuntimeException("failed insert artifact into database"); |
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671 } |
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672 |
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673 return id[0]; |
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674 } |
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675 |
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676 /** |
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677 * Internal method to store an artifact inside the database. |
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678 * @param artifact The artifact to be stored. |
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679 * @param factory The factory which created the artifact. |
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680 * @param ttl The initial time to live of the artifact. |
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681 * @return The database id of the stored artifact. |
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682 */ |
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683 protected int insertDatabase( |
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684 final Artifact artifact, |
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685 final ArtifactFactory factory, |
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686 final Long ttl |
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687 ) { |
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688 final int [] id = new int[1]; |
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689 |
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690 SQLExecutor exec = new SQLExecutor() { |
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691 public boolean doIt() throws SQLException { |
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692 prepareStatement(SQL_NEXT_ID); |
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693 result = stmnt.executeQuery(); |
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694 |
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695 if (!result.next()) { |
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696 logger.error("No id generated"); |
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697 return false; |
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698 } |
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699 |
174
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700 id[0] = result.getInt(1); |
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701 |
174
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702 reset(); |
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703 prepareStatement(SQL_INSERT); |
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704 |
174
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705 String uuid = artifact.identifier(); |
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706 stmnt.setInt(1, id[0]); |
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707 stmnt.setString(2, uuid); |
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708 if (ttl == null) { |
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709 stmnt.setNull(3, Types.BIGINT); |
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710 } |
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711 else { |
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712 stmnt.setLong(3, ttl.longValue()); |
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713 } |
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714 |
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715 stmnt.setString(4, factory.getName()); |
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716 |
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717 stmnt.setBytes( |
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718 5, |
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719 factory.getSerializer().toBytes(artifact)); |
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720 |
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721 stmnt.execute(); |
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722 |
174
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723 conn.commit(); |
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724 return true; |
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725 } |
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726 }; |
14
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727 |
174
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728 if (!exec.runWrite()) { |
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729 throw new RuntimeException("failed insert artifact into database"); |
14
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730 } |
174
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731 |
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732 return id[0]; |
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733 } |
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734 |
90
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735 /** |
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736 * Touches the access timestamp of a given artifact to prevent |
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737 * that it will be removed from the database by the database cleaner. |
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738 * @param artifact The persistent wrapper around the living artifact. |
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739 */ |
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740 public void touch(final PersistentArtifact artifact) { |
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741 new SQLExecutor() { |
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742 public boolean doIt() throws SQLException { |
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743 prepareStatement(SQL_TOUCH); |
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744 stmnt.setInt(1, artifact.getId()); |
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745 stmnt.execute(); |
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746 conn.commit(); |
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747 return true; |
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748 } |
174
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749 }.runWrite(); |
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750 } |
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751 |
90
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752 /** |
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753 * Writes modification of an artifact back to the database. |
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754 * @param artifact The persistent wrapper around a living |
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755 * artifact. |
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756 */ |
174
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757 public void store(final PersistentArtifact artifact) { |
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758 new SQLExecutor() { |
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759 public boolean doIt() throws SQLException { |
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760 prepareStatement(SQL_UPDATE); |
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761 stmnt.setInt(2, artifact.getId()); |
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|
762 |
174
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763 byte [] bytes = artifact |
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764 .getSerializer() |
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765 .toBytes(artifact.getArtifact()); |
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766 |
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767 stmnt.setBytes(1, bytes); |
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768 stmnt.execute(); |
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769 conn.commit(); |
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770 return true; |
26
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771 } |
174
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772 }.runWrite(); |
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773 } |
133
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774 |
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775 public User createUser( |
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776 final String name, |
174
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777 final Document role, |
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778 final UserFactory factory, |
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779 final Object context |
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780 ) { |
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781 final User [] user = new User[1]; |
138
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782 |
235
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783 final byte [] roleData = XMLUtils.toByteArray(role, true); |
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784 |
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785 SQLExecutor exec = new SQLExecutor() { |
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786 public boolean doIt() throws SQLException { |
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787 |
174
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788 prepareStatement(SQL_USERS_NEXT_ID); |
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789 result = stmnt.executeQuery(); |
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790 |
146
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791 if (!result.next()) { |
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792 return false; |
138
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793 } |
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794 |
145
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795 int id = result.getInt(1); |
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796 |
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797 reset(); |
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798 |
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799 String identifier = newIdentifier(); |
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800 |
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801 prepareStatement(SQL_USERS_INSERT); |
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802 |
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803 stmnt.setInt(1, id); |
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804 stmnt.setString(2, identifier); |
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805 stmnt.setString(3, name); |
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806 |
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807 if (roleData == null) { |
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808 stmnt.setNull(4, Types.BIGINT); |
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809 } |
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810 else { |
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811 stmnt.setBytes(4, roleData); |
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812 } |
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813 |
174
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814 stmnt.execute(); |
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815 conn.commit(); |
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816 |
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817 user[0] = factory.createUser( |
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818 identifier, name, role, context); |
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819 return true; |
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820 } |
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821 }; |
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822 |
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823 return exec.runWrite() ? user[0] : null; |
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824 } |
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825 |
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826 public boolean deleteUser(final String identifier) { |
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827 |
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828 if (!isValidIdentifier(identifier)) { |
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829 return false; |
147
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830 } |
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831 |
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832 SQLExecutor exec = new SQLExecutor() { |
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833 public boolean doIt() throws SQLException { |
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834 prepareStatement(SQL_USERS_SELECT_ID_BY_GID); |
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835 |
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836 stmnt.setString(1, identifier); |
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837 result = stmnt.executeQuery(); |
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838 |
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839 if (!result.next()) { // No such user |
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840 return false; |
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841 } |
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|
842 |
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843 int id = result.getInt(1); |
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844 |
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|
845 reset(); |
144
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846 |
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847 // outdate the artifacts exclusively used by the user |
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848 |
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849 prepareStatement(SQL_OUTDATE_ARTIFACTS_USER); |
144
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850 stmnt.setInt(1, id); |
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851 stmnt.setInt(2, id); |
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852 stmnt.execute(); |
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|
853 |
174
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854 reset(); |
144
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|
855 |
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856 // delete the collection items of the user |
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|
857 |
174
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|
858 prepareStatement(SQL_DELETE_USER_COLLECTION_ITEMS); |
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859 stmnt.setInt(1, id); |
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|
860 stmnt.execute(); |
233
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|
861 |
174
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|
862 reset(); |
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|
863 |
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864 // delete the collections of the user |
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865 |
174
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866 prepareStatement(SQL_USERS_DELETE_COLLECTIONS); |
144
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867 stmnt.setInt(1, id); |
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|
868 stmnt.execute(); |
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|
869 |
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870 reset(); |
144
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|
871 |
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|
872 // delete the user |
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|
873 |
174
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874 prepareStatement(SQL_USERS_DELETE_ID); |
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875 stmnt.setInt(1, id); |
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|
876 stmnt.execute(); |
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|
877 |
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|
878 conn.commit(); |
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879 return true; |
144
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|
880 } |
174
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881 }; |
154
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|
882 |
174
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883 return exec.runWrite(); |
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|
884 } |
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|
885 |
157
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|
886 public User getUser( |
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887 final String identifier, |
174
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888 final UserFactory factory, |
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889 final Object context |
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890 ) { |
177
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|
891 if (!isValidIdentifier(identifier)) { |
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|
892 logger.debug("Invalid UUID: '" + identifier + "'"); |
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|
893 return null; |
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894 } |
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|
895 |
174
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896 final User [] user = new User[1]; |
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|
897 |
174
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898 SQLExecutor exec = new SQLExecutor() { |
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899 public boolean doIt() throws SQLException { |
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900 prepareStatement(SQL_USERS_SELECT_GID); |
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901 stmnt.setString(1, identifier); |
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902 result = stmnt.executeQuery(); |
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903 if (!result.next()) { // no such user |
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904 return false; |
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905 } |
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|
906 // omit id |
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907 String name = result.getString(2); |
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908 byte [] roleData = result.getBytes(3); |
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909 |
235
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910 Document role = XMLUtils.fromByteArray(roleData, true); |
174
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911 |
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|
912 user[0] = factory.createUser( |
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|
913 identifier, name, role, context); |
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|
914 return true; |
147
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|
915 } |
174
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|
916 }; |
147
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|
917 |
174
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|
918 return exec.runRead() ? user[0] : null; |
133
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|
919 } |
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|
920 |
174
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|
921 public User [] getUsers( |
233
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|
922 final UserFactory factory, |
174
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|
923 final Object context |
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924 ) { |
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925 final ArrayList<User> users = new ArrayList<User>(); |
148
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|
926 |
174
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|
927 SQLExecutor exec = new SQLExecutor() { |
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|
928 public boolean doIt() throws SQLException { |
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|
929 prepareStatement(SQL_USERS_SELECT_ALL); |
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|
930 result = stmnt.executeQuery(); |
148
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|
931 |
174
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|
932 while (result.next()) { |
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|
933 // omit id |
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|
934 String identifier = result.getString(2); |
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|
935 String name = result.getString(3); |
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|
936 byte [] roleData = result.getBytes(4); |
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|
937 |
235
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|
938 Document role = XMLUtils.fromByteArray(roleData, true); |
174
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|
939 User user = factory.createUser( |
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|
940 identifier, name, role, context); |
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|
941 users.add(user); |
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|
942 } |
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|
943 return true; |
148
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diff
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|
944 } |
174
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|
945 }; |
148
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|
946 |
174
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|
947 return exec.runRead() |
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|
948 ? users.toArray(new User[users.size()]) |
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|
949 : null; |
133
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Fixed typo in keys.
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diff
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|
950 } |
156
a76de72ad6d1
Added stubs for the collection handling in db backend.
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154
diff
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|
951 |
159
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|
952 public ArtifactCollection createCollection( |
233
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|
953 final String ownerIdentifier, |
174
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|
954 final String name, |
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|
955 final ArtifactCollectionFactory factory, |
199
face2302387c
Insert collection attribute into database, too.
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diff
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|
956 final Document attribute, |
174
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|
957 final Object context |
159
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|
958 ) { |
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|
959 if (name == null) { |
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|
960 logger.debug("Name is null"); |
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|
961 return null; |
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|
962 } |
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diff
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|
963 |
177
77cd37a93fca
Backend: isIdentifierValid more symmetric to new newIndentifier
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diff
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|
964 if (!isValidIdentifier(ownerIdentifier)) { |
159
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|
965 logger.debug("Invalid owner id: '" + ownerIdentifier + "'"); |
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|
966 return null; |
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|
967 } |
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|
968 |
235
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|
969 final ArtifactCollection [] collection = new ArtifactCollection[1]; |
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970 |
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|
971 final byte [] data = XMLUtils.toByteArray(attribute, true); |
159
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|
972 |
174
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|
973 SQLExecutor exec = new SQLExecutor() { |
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|
974 public boolean doIt() throws SQLException { |
159
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|
975 // fetch owner id |
174
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|
976 prepareStatement(SQL_USERS_SELECT_ID_BY_GID); |
159
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|
977 stmnt.setString(1, ownerIdentifier); |
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|
978 result = stmnt.executeQuery(); |
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|
979 |
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|
980 if (!result.next()) { // no such user |
174
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|
981 return false; |
159
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|
982 } |
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|
983 |
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|
984 int ownerId = result.getInt(1); |
174
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|
985 reset(); |
159
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|
986 |
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|
987 // fetch new collection seq number. |
174
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|
988 prepareStatement(SQL_COLLECTIONS_NEXT_ID); |
159
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|
989 result = stmnt.executeQuery(); |
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|
990 |
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|
991 if (!result.next()) { // no identifier generated |
174
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|
992 return false; |
159
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|
993 } |
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|
994 |
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|
995 int id = result.getInt(1); |
174
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|
996 reset(); |
159
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|
997 |
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changeset
|
998 String identifier = newIdentifier(); |
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|
999 |
174
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|
1000 prepareStatement(SQL_COLLECTIONS_INSERT); |
159
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|
1001 |
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|
1002 stmnt.setInt(1, id); |
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|
1003 stmnt.setString(2, identifier); |
161
e4a1562dfc21
Bugfixed the collection creation in the Backend.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
159
diff
changeset
|
1004 stmnt.setString(3, name); |
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Bugfixed the collection creation in the Backend.
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159
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|
1005 stmnt.setInt(4, ownerId); |
159
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|
1006 |
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|
1007 // XXX: A bit odd: we don't have a collection, yet. |
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|
1008 Long ttl = factory.timeToLiveUntouched(null, context); |
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|
1009 |
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1010 if (ttl == null) { |
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1011 stmnt.setNull(5, Types.BIGINT); |
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1012 } |
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1013 else { |
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1014 stmnt.setLong(5, ttl); |
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1015 } |
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1016 |
199
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1017 if (data == null) { |
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1018 stmnt.setNull(6, Types.BINARY); |
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1019 } |
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1020 else { |
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1021 stmnt.setBytes(6, data); |
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1022 } |
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1023 |
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1024 stmnt.execute(); |
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1025 conn.commit(); |
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1026 |
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1027 reset(); |
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1028 |
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1029 // fetch creation time from database |
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1030 // done this way to use the time system |
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1031 // of the database. |
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1032 |
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1033 prepareStatement(SQL_COLLECTIONS_CREATION_TIME); |
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1034 stmnt.setInt(1, id); |
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1035 |
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1036 result = stmnt.executeQuery(); |
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1037 |
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1038 Date creationTime = null; |
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1039 |
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1040 if (result.next()) { |
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1041 Timestamp timestamp = result.getTimestamp(1); |
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1042 creationTime = new Date(timestamp.getTime()); |
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1043 } |
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1044 |
174
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1045 collection[0] = factory.createCollection( |
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1046 identifier, name, creationTime, ttl, attribute, context); |
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1047 |
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1048 return true; |
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1049 } |
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1050 }; |
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1051 |
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1052 return exec.runWrite() ? collection[0]: null; |
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1053 } |
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1054 |
217
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1055 public ArtifactCollection getCollection( |
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1056 final String collectionId, |
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1057 final ArtifactCollectionFactory collectionFactory, |
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1058 final UserFactory userFactory, |
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1059 final Object context |
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1060 ) { |
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1061 if (!isValidIdentifier(collectionId)) { |
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1062 logger.debug("collection id is not valid: " + collectionId); |
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1063 return null; |
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1064 } |
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1065 |
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1066 final ArtifactCollection[] ac = new ArtifactCollection[1]; |
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1067 |
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1068 SQLExecutor exec = new SQLExecutor() { |
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1069 public boolean doIt() throws SQLException { |
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1070 |
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1071 prepareStatement(SQL_COLLECTIONS_SELECT_GID); |
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1072 stmnt.setString(1, collectionId); |
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1073 |
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1074 result = stmnt.executeQuery(); |
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1075 if (!result.next()) { |
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1076 logger.debug("No such collection"); |
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1077 return false; |
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1078 } |
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1079 |
235
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1080 String collectionName = result.getString(2); |
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1081 String ownerId = result.getString(3); |
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1082 Date creationTime = |
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1083 new Date(result.getTimestamp(4).getTime()); |
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1084 Date lastAccess = |
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1085 new Date(result.getTimestamp(5).getTime()); |
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1086 Document attr = |
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1087 XMLUtils.fromByteArray(result.getBytes(6), true); |
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1088 long ttl = result.getLong(7); |
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1089 |
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1090 ArtifactCollection collection = |
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1091 collectionFactory.createCollection( |
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1092 collectionId, |
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1093 collectionName, |
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1094 creationTime, |
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1095 ttl, |
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1096 attr, |
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1097 context); |
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1098 |
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1099 if (ownerId != null) { |
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1100 collection.setUser(new LazyBackendUser( |
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1101 ownerId, userFactory, Backend.this, context)); |
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1102 } |
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1103 |
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1104 ac[0] = collection; |
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1105 |
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1106 return true; |
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1107 } |
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1108 }; |
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1109 |
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1110 return exec.runRead() ? ac[0] : null; |
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1111 } |
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1112 |
164
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1113 public ArtifactCollection [] listCollections( |
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1114 final String ownerIdentifier, |
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1115 final Document data, |
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1116 final ArtifactCollectionFactory collectionFactory, |
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1117 final UserFactory userFactory, |
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1118 final Object context |
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1119 ) { |
233
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1120 if (ownerIdentifier != null |
177
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1121 && !isValidIdentifier(ownerIdentifier)) { |
167
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1122 logger.debug("Invalid owner id: '" + ownerIdentifier + "'"); |
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1123 return null; |
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1124 } |
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1125 |
174
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1126 final ArrayList<ArtifactCollection> collections = |
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1127 new ArrayList<ArtifactCollection>(); |
167
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1128 |
174
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1129 SQLExecutor exec = new SQLExecutor() { |
167
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1130 |
174
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1131 public boolean doIt() throws SQLException { |
167
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1132 |
174
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1133 if (ownerIdentifier != null) { |
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1134 prepareStatement(SQL_COLLECTIONS_SELECT_USER); |
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1135 stmnt.setString(1, ownerIdentifier); |
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1136 } |
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1137 else { |
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1138 prepareStatement(SQL_COLLECTIONS_SELECT_ALL); |
167
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1139 } |
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1140 |
174
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1141 result = stmnt.executeQuery(); |
167
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1142 |
235
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1143 HashMap<String, LazyBackendUser> users = |
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1144 new HashMap<String, LazyBackendUser>(); |
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1145 |
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1146 while (result.next()) { |
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1147 String collectionIdentifier = result.getString(1); |
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1148 String collectionName = result.getString(2); |
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1149 Date creationTime = |
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1150 new Date(result.getTimestamp(3).getTime()); |
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1151 String userIdentifier = result.getString(4); |
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1152 long ttl = result.getLong(5); |
174
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1153 |
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1154 ArtifactCollection collection = |
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1155 collectionFactory.createCollection( |
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1156 collectionIdentifier, |
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1157 collectionName, |
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1158 creationTime, |
281
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|
1159 ttl, |
174
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1160 data, |
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1161 context); |
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1162 |
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|
1163 if (userIdentifier != null) { |
235
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1164 LazyBackendUser user = users.get(userIdentifier); |
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1165 if (user == null) { |
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1166 user = new LazyBackendUser( |
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1167 userIdentifier, userFactory, |
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|
1168 Backend.this, context); |
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1169 users.put(userIdentifier, user); |
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1170 } |
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1171 collection.setUser(user); |
174
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|
1172 } |
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1173 |
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1174 collections.add(collection); |
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1175 } |
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1176 return true; |
167
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1177 } |
174
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|
1178 }; |
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1179 |
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|
1180 return exec.runRead() |
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1181 ? collections.toArray(new ArtifactCollection[collections.size()]) |
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1182 : null; |
156
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1183 } |
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1184 |
174
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1185 |
175
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|
1186 public boolean deleteCollection(final String collectionId) { |
177
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|
1187 if (!isValidIdentifier(collectionId)) { |
175
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1188 logger.debug("Invalid collection id: '" + collectionId + "'"); |
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1189 return false; |
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|
1190 } |
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1191 SQLExecutor exec = new SQLExecutor() { |
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1192 public boolean doIt() throws SQLException { |
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1193 // fetch collection id |
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1194 prepareStatement(SQL_COLLECTIONS_ID_BY_GID); |
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1195 stmnt.setString(1, collectionId); |
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1196 result = stmnt.executeQuery(); |
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1197 if (!result.next()) { |
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1198 logger.debug("No such collection: " + collectionId); |
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1199 return false; |
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1200 } |
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1201 int id = result.getInt(1); |
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1202 reset(); |
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1203 |
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1204 // outdate artifacts that are only in this collection |
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1205 prepareStatement(SQL_OUTDATE_ARTIFACTS_COLLECTION); |
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1206 stmnt.setInt(1, id); |
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1207 stmnt.setInt(2, id); |
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1208 stmnt.execute(); |
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1209 reset(); |
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1210 |
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1211 // delete the collection items |
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1212 prepareStatement(SQL_DELETE_COLLECTION_ITEMS); |
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1213 stmnt.setInt(1, id); |
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1214 stmnt.execute(); |
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1215 reset(); |
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1216 |
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1217 // delete the collection |
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1218 prepareStatement(SQL_DELETE_COLLECTION); |
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1219 stmnt.setInt(1, id); |
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1220 stmnt.execute(); |
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1221 conn.commit(); |
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1222 return true; |
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1223 } |
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1224 }; |
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1225 return exec.runWrite(); |
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|
1226 } |
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1227 |
253
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1228 public Document getCollectionAttribute(final String collectionId) { |
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1229 if (!isValidIdentifier(collectionId)) { |
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|
1230 logger.debug("collection id is not valid: " + collectionId); |
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|
1231 } |
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|
1232 |
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diff
changeset
|
1233 final byte[][] data = new byte[1][1]; |
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|
1234 |
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changeset
|
1235 SQLExecutor exec = new SQLExecutor() { |
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|
1236 public boolean doIt() throws SQLException { |
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|
1237 prepareStatement(SQL_COLLECTION_GET_ATTRIBUTE); |
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|
1238 stmnt.setString(1, collectionId); |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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|
1239 result = stmnt.executeQuery(); |
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diff
changeset
|
1240 if (!result.next()) { |
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|
1241 logger.debug("No such collection."); |
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diff
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|
1242 return false; |
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diff
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|
1243 } |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
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|
1244 |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1245 data[0] = result.getBytes(1); |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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changeset
|
1246 return true; |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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|
1247 } |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
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|
1248 }; |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
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|
1249 |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1250 return exec.runRead() |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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changeset
|
1251 ? XMLUtils.fromByteArray(data[0], true) |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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|
1252 : null; |
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|
1253 } |
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diff
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|
1254 |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1255 public boolean setCollectionAttribute( |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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changeset
|
1256 final String collectionId, |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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changeset
|
1257 Document attribute |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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|
1258 ) { |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
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|
1259 if (!isValidIdentifier(collectionId)) { |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1260 logger.debug("collection id is not valid: " + collectionId); |
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diff
changeset
|
1261 return false; |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
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|
1262 } |
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diff
changeset
|
1263 |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1264 final byte [] data = XMLUtils.toByteArray(attribute, true); |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1265 |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1266 return new SQLExecutor() { |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1267 public boolean doIt() throws SQLException { |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1268 |
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diff
changeset
|
1269 // set the column in collection items |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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252
diff
changeset
|
1270 prepareStatement(SQL_COLLECTION_SET_ATTRIBUTE); |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1271 if (data == null) { |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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252
diff
changeset
|
1272 stmnt.setNull(1, Types.BINARY); |
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diff
changeset
|
1273 } |
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diff
changeset
|
1274 else { |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1275 stmnt.setBytes(1, data); |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1276 } |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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252
diff
changeset
|
1277 stmnt.setString(2, collectionId); |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1278 stmnt.execute(); |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1279 reset(); |
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252
diff
changeset
|
1280 |
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diff
changeset
|
1281 // touch the collection |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1282 prepareStatement(SQL_COLLECTIONS_TOUCH_BY_GID); |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1283 stmnt.setString(1, collectionId); |
a2df2b48d2aa
Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1284 stmnt.execute(); |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1285 |
a2df2b48d2aa
Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1286 conn.commit(); |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1287 return true; |
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diff
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|
1288 } |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1289 }.runWrite(); |
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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diff
changeset
|
1290 } |
a2df2b48d2aa
Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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parents:
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diff
changeset
|
1291 |
252
6de74b0b878e
Changed the method names to get and set the attributes of collection items.
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242
diff
changeset
|
1292 public Document getCollectionItemAttribute( |
178
535e4ea2ef9b
Added code to get the attribute of a collection item
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diff
changeset
|
1293 final String collectionId, |
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diff
changeset
|
1294 final String artifactId |
156
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diff
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|
1295 ) { |
178
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Added code to get the attribute of a collection item
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diff
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|
1296 if (!isValidIdentifier(collectionId)) { |
535e4ea2ef9b
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diff
changeset
|
1297 logger.debug("collection id is not valid: " + collectionId); |
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diff
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|
1298 return null; |
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diff
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|
1299 } |
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Added code to get the attribute of a collection item
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diff
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|
1300 if (!isValidIdentifier(artifactId)) { |
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diff
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|
1301 logger.debug("artifact id is not valid: " + artifactId); |
179
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diff
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|
1302 return null; |
178
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1303 } |
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diff
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|
1304 |
235
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|
1305 final byte [][] data = new byte[1][1]; |
178
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diff
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|
1306 |
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diff
changeset
|
1307 SQLExecutor exec = new SQLExecutor() { |
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|
1308 public boolean doIt() throws SQLException { |
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changeset
|
1309 prepareStatement(SQL_COLLECTION_ITEM_GET_ATTRIBUTE); |
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diff
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|
1310 stmnt.setString(1, collectionId); |
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|
1311 stmnt.setString(2, artifactId); |
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|
1312 result = stmnt.executeQuery(); |
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|
1313 if (!result.next()) { |
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diff
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|
1314 logger.debug("No such collection item"); |
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|
1315 return false; |
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1316 } |
235
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|
1317 data[0] = result.getBytes(1); |
178
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changeset
|
1318 return true; |
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|
1319 } |
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diff
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|
1320 }; |
535e4ea2ef9b
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diff
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|
1321 |
235
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|
1322 return exec.runRead() |
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|
1323 ? XMLUtils.fromByteArray(data[0], true) |
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1324 : null; |
156
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1325 } |
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|
1326 |
252
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diff
changeset
|
1327 public boolean setCollectionItemAttribute( |
233
16cd059945e5
Removed trailing whitespace.
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diff
changeset
|
1328 final String collectionId, |
179
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diff
changeset
|
1329 final String artifactId, |
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diff
changeset
|
1330 Document attribute |
156
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diff
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|
1331 ) { |
179
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|
1332 if (!isValidIdentifier(collectionId)) { |
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1333 logger.debug("collection id is not valid: " + collectionId); |
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1334 return false; |
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1335 } |
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1336 if (!isValidIdentifier(artifactId)) { |
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1337 logger.debug("artifact id is not valid: " + artifactId); |
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1338 return false; |
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1339 } |
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1340 |
235
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1341 final byte [] data = XMLUtils.toByteArray(attribute, true); |
179
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1342 |
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1343 return new SQLExecutor() { |
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1344 public boolean doIt() throws SQLException { |
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1345 |
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1346 // set the column in collection items |
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1347 prepareStatement(SQL_COLLECTION_ITEM_SET_ATTRIBUTE); |
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1348 if (data == null) { |
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1349 stmnt.setNull(1, Types.BINARY); |
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1350 } |
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1351 else { |
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1352 stmnt.setBytes(1, data); |
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1353 } |
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1354 stmnt.setString(2, collectionId); |
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1355 stmnt.setString(3, artifactId); |
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1356 stmnt.execute(); |
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1357 reset(); |
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1358 |
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1359 // touch the collection |
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1360 prepareStatement(SQL_COLLECTIONS_TOUCH_BY_GID); |
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1361 stmnt.setString(1, collectionId); |
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1362 stmnt.execute(); |
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1363 |
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|
1364 conn.commit(); |
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|
1365 return true; |
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1366 } |
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|
1367 }.runWrite(); |
156
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|
1368 } |
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1369 |
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diff
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|
1370 public boolean addCollectionArtifact( |
176
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1371 final String collectionId, |
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1372 final String artifactId, |
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1373 final Document attribute |
156
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|
1374 ) { |
177
77cd37a93fca
Backend: isIdentifierValid more symmetric to new newIndentifier
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diff
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|
1375 if (!isValidIdentifier(collectionId)) { |
176
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|
1376 logger.debug("Invalid collection id: '" + collectionId + "'"); |
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1377 return false; |
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1378 } |
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|
1379 |
177
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|
1380 if (!isValidIdentifier(artifactId)) { |
176
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|
1381 logger.debug("Invalid artifact id: '" + artifactId + "'"); |
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1382 return false; |
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|
1383 } |
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|
1384 |
235
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diff
changeset
|
1385 final byte [] data = XMLUtils.toByteArray(attribute, true); |
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diff
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|
1386 |
176
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1387 SQLExecutor exec = new SQLExecutor() { |
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diff
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1388 public boolean doIt() throws SQLException { |
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diff
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|
1389 // fetch artifact id |
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|
1390 prepareStatement(SQL_GET_ID); |
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diff
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|
1391 stmnt.setString(1, artifactId); |
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1392 result = stmnt.executeQuery(); |
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|
1393 if (!result.next()) { |
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changeset
|
1394 logger.debug("No such artifact: " + artifactId); |
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|
1395 return false; |
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|
1396 } |
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|
1397 int aid = result.getInt(1); |
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diff
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|
1398 reset(); |
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diff
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|
1399 |
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diff
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|
1400 // fetch collection id |
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diff
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|
1401 prepareStatement(SQL_COLLECTIONS_ID_BY_GID); |
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|
1402 stmnt.setString(1, collectionId); |
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|
1403 result = stmnt.executeQuery(); |
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|
1404 if (!result.next()) { |
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diff
changeset
|
1405 logger.debug("No such collection: " + collectionId); |
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|
1406 } |
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|
1407 int cid = result.getInt(1); |
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diff
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|
1408 reset(); |
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|
1409 |
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|
1410 // check if artifact is already in collection |
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|
1411 prepareStatement(SQL_COLLECTION_CHECK_ARTIFACT); |
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|
1412 stmnt.setInt(1, aid); |
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|
1413 stmnt.setInt(2, cid); |
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|
1414 result = stmnt.executeQuery(); |
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|
1415 if (result.next()) { |
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|
1416 logger.debug("artifact already in collection"); |
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1417 return false; |
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|
1418 } |
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|
1419 reset(); |
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1420 |
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1421 // fetch fresh id for new collection item |
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|
1422 prepareStatement(SQL_COLLECTION_ITEMS_ID_NEXTVAL); |
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1423 result = stmnt.executeQuery(); |
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1424 if (!result.next()) { |
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1425 logger.debug("no collection item id generated"); |
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1426 return false; |
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1427 } |
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1428 int ci_id = result.getInt(1); |
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1429 reset(); |
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1430 |
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|
1431 // insert new collection item |
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|
1432 prepareStatement(SQL_COLLECTION_ITEMS_INSERT); |
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1433 stmnt.setInt(1, ci_id); |
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|
1434 stmnt.setInt(2, cid); |
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|
1435 stmnt.setInt(3, aid); |
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1436 |
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|
1437 if (data == null) { |
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|
1438 stmnt.setNull(4, Types.BINARY); |
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1439 } |
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1440 else { |
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1441 stmnt.setBytes(4, data); |
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1442 } |
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1443 stmnt.execute(); |
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|
1444 conn.commit(); |
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|
1445 |
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1446 return true; |
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1447 } |
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1448 }; |
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1449 return exec.runWrite(); |
156
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1450 } |
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1451 |
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1452 public boolean removeCollectionArtifact( |
180
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1453 final String collectionId, |
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1454 final String artifactId |
156
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1455 ) { |
180
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1456 if (!isValidIdentifier(collectionId)) { |
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1457 logger.debug("Invalid collection id: '" + collectionId + "'"); |
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1458 return false; |
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1459 } |
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1460 return new SQLExecutor() { |
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1461 public boolean doIt() throws SQLException { |
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1462 |
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1463 // fetch id, collection id and artitfact id |
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1464 prepareStatement(SQL_COLLECTION_ITEM_ID_CID_AID); |
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1465 stmnt.setString(1, collectionId); |
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1466 stmnt.setString(2, artifactId); |
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1467 result = stmnt.executeQuery(); |
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1468 if (!result.next()) { |
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1469 logger.debug("No such collection item"); |
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1470 return false; |
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1471 } |
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1472 int id = result.getInt(1); |
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1473 int cid = result.getInt(2); |
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1474 int aid = result.getInt(3); |
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1475 reset(); |
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1476 |
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1477 // outdate artifact iff it is only in this collection |
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|
1478 prepareStatement(SQL_COLLECTION_ITEM_OUTDATE_ARTIFACT); |
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1479 stmnt.setInt(1, aid); |
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|
1480 stmnt.setInt(2, cid); |
194
fde2f193e846
Small typo fix
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diff
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|
1481 stmnt.setInt(3, aid); |
180
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|
1482 stmnt.execute(); |
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1483 reset(); |
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1484 |
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|
1485 // delete collection item |
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|
1486 prepareStatement(SQL_COLLECTION_ITEM_DELETE); |
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|
1487 stmnt.setInt(1, id); |
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|
1488 stmnt.execute(); |
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|
1489 reset(); |
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|
1490 |
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|
1491 // touch collection |
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|
1492 prepareStatement(SQL_COLLECTIONS_TOUCH_BY_ID); |
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|
1493 stmnt.setInt(1, cid); |
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|
1494 stmnt.execute(); |
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|
1495 |
38fbbeffe8fe
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|
1496 conn.commit(); |
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|
1497 return true; |
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|
1498 } |
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|
1499 }.runWrite(); |
156
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|
1500 } |
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diff
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|
1501 |
184
a22b7e367b25
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diff
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|
1502 public CollectionItem [] listCollectionArtifacts( |
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diff
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|
1503 final String collectionId |
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diff
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|
1504 ) { |
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diff
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|
1505 if (!isValidIdentifier(collectionId)) { |
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diff
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|
1506 logger.debug("Invalid collection id: '" + collectionId + "'"); |
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|
1507 return null; |
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diff
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|
1508 } |
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diff
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|
1509 |
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diff
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|
1510 final ArrayList<CollectionItem> collectionItems = |
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|
1511 new ArrayList<CollectionItem>(); |
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|
1512 |
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diff
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|
1513 SQLExecutor exec = new SQLExecutor() { |
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diff
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|
1514 public boolean doIt() throws SQLException { |
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diff
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|
1515 prepareStatement(SQL_COLLECTION_ITEMS_LIST_GID); |
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diff
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|
1516 stmnt.setString(1, collectionId); |
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diff
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|
1517 result = stmnt.executeQuery(); |
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diff
changeset
|
1518 while (result.next()) { |
186
15c7638511dc
Added an interface for CollectionItems and renamed the CollectionItem class from the artifact-database package to DefaultCollectionItem - because this is the default implementation of the interface.
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184
diff
changeset
|
1519 CollectionItem item = new DefaultCollectionItem( |
184
a22b7e367b25
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diff
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|
1520 result.getString(1), |
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diff
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|
1521 result.getBytes(2)); |
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|
1522 collectionItems.add(item); |
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|
1523 } |
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diff
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|
1524 return true; |
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diff
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|
1525 } |
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diff
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|
1526 }; |
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diff
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|
1527 |
a22b7e367b25
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diff
changeset
|
1528 return exec.runRead() |
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|
1529 ? collectionItems.toArray( |
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|
1530 new CollectionItem[collectionItems.size()]) |
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|
1531 : null; |
156
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|
1532 } |
273
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|
1533 |
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diff
changeset
|
1534 |
22a90706d32d
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diff
changeset
|
1535 public boolean setCollectionTTL(final String uuid, final Long ttl) { |
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|
1536 if (!isValidIdentifier(uuid)) { |
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changeset
|
1537 logger.debug("Invalid collection id: '" + uuid + "'"); |
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|
1538 return false; |
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|
1539 } |
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|
1540 |
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changeset
|
1541 return new SQLExecutor() { |
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|
1542 public boolean doIt() throws SQLException { |
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|
1543 prepareStatement(SQL_UPDATE_COLLECTION_TTL); |
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|
1544 if (ttl == null) { |
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|
1545 stmnt.setNull(1, Types.BIGINT); |
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|
1546 } |
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|
1547 else { |
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changeset
|
1548 stmnt.setLong(1, ttl); |
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|
1549 } |
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|
1550 stmnt.setString(2, uuid); |
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|
1551 stmnt.execute(); |
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|
1552 conn.commit(); |
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|
1553 |
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1554 return true; |
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1555 } |
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1556 }.runWrite(); |
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1557 } |
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1558 |
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1559 |
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1560 public boolean setCollectionName(final String uuid, final String name) { |
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1561 if (!isValidIdentifier(uuid)) { |
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1562 logger.debug("Invalid collection id: '" + uuid + "'"); |
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1563 return false; |
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1564 } |
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1565 |
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1566 return new SQLExecutor() { |
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1567 public boolean doIt() throws SQLException { |
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1568 prepareStatement(SQL_UPDATE_COLLECTION_NAME); |
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1569 stmnt.setString(1, name); |
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1570 stmnt.setString(2, uuid); |
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1571 stmnt.execute(); |
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1572 conn.commit(); |
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1573 |
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1574 return true; |
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1575 } |
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1576 }.runWrite(); |
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1577 } |
303
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1578 |
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1579 public boolean loadAllArtifacts(final ArtifactLoadedCallback alc) { |
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1580 |
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1581 if (factoryLookup == null) { |
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1582 logger.error("factory lookup == null"); |
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1583 return false; |
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1584 } |
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1585 |
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1586 return new SQLExecutor() { |
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1587 public boolean doIt() throws SQLException { |
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1588 |
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1589 // a little cache to avoid too much deserializations. |
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1590 Map<String, Artifact> alreadyLoaded = |
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1591 new LinkedHashMap<String, Artifact>() { |
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1592 @Override |
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1593 protected boolean removeEldestEntry(Map.Entry eldest) { |
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1594 // store only the last 200 to avoid memory flooding |
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1595 return size() > 200; |
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1596 } |
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1597 }; |
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1598 |
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1599 prepareStatement(SQL_ALL_ARTIFACTS); |
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1600 result = stmnt.executeQuery(); |
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1601 while (result.next()) { |
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1602 String userId = result.getString(1); |
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1603 String collectionId = result.getString(2); |
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1604 String artifactId = result.getString(3); |
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1605 String factoryName = result.getString(4); |
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1606 |
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1607 Artifact artifact = alreadyLoaded.get(artifactId); |
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1608 |
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1609 if (artifact != null) { |
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1610 alc.artifactLoaded( |
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1611 userId, collectionId, artifactId, artifact); |
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1612 continue; |
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1613 } |
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1614 |
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1615 ArtifactFactory factory = factoryLookup |
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1616 .getArtifactFactory(factoryName); |
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1617 |
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1618 if (factory == null) { |
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1619 logger.error("factory '" + factoryName + "' not found"); |
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1620 continue; |
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1621 } |
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1622 |
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1623 byte [] bytes = result.getBytes(5); |
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1624 |
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1625 artifact = factory.getSerializer().fromBytes(bytes); |
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1626 |
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1627 if (artifact != null) { |
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1628 alc.artifactLoaded( |
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1629 userId, collectionId, artifactId, artifact); |
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1630 } |
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1631 |
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|
1632 alreadyLoaded.put(artifactId, artifact); |
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1633 } |
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1634 return true; |
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1635 } |
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|
1636 }.runRead(); |
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1637 } |
13
0d6badf6af42
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|
1638 } |
79
f69e5b87f05f
Implementation to export artifacts as xml (applied patch from issue208 by SLT).
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47
diff
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|
1639 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |