Mercurial > dive4elements > framework
annotate artifact-database/src/main/java/de/intevation/artifactdatabase/Backend.java @ 301:b0a949d3fe09
Moved StringUtils to common package. Added some Override annotations.
artifacts/trunk@2394 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Fri, 22 Jul 2011 09:36:04 +0000 |
parents | 942a54670a72 |
children | 190aa68ae7a8 |
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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; |
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12 import de.intevation.artifacts.ArtifactCollectionFactory; |
41
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13 import de.intevation.artifacts.ArtifactFactory; |
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14 import de.intevation.artifacts.ArtifactSerializer; |
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15 import de.intevation.artifacts.CollectionItem; |
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16 import de.intevation.artifacts.User; |
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17 import de.intevation.artifacts.UserFactory; |
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18 |
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19 import de.intevation.artifacts.common.utils.StringUtils; |
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20 import de.intevation.artifacts.common.utils.XMLUtils; |
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21 |
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22 import java.sql.SQLException; |
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23 import java.sql.Timestamp; |
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24 import java.sql.Types; |
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25 |
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26 import java.util.ArrayList; |
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27 import java.util.Date; |
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28 import java.util.HashMap; |
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29 |
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30 import org.apache.log4j.Logger; |
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31 |
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32 import org.w3c.dom.Document; |
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33 |
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34 /** |
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35 * The backend implements the low level layer used to store artifacts |
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36 * in a SQL database. |
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37 * |
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38 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a> |
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39 */ |
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40 public class Backend |
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41 implements DatabaseCleaner.ArtifactReviver |
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42 { |
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43 private static Logger logger = Logger.getLogger(Backend.class); |
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44 |
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45 /** |
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46 * The SQL statement to create new artifact id inside the database. |
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47 */ |
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48 public static final String SQL_NEXT_ID = |
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49 SQL.get("artifacts.id.nextval"); |
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50 |
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51 /** |
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52 * The SQL statement to insert an artifact into the database. |
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53 */ |
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54 public static final String SQL_INSERT = |
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55 SQL.get("artifacts.insert"); |
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56 |
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57 /** |
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58 * The SQL statement to update some columns of an existing |
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59 * artifact in the database. |
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60 */ |
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61 public static final String SQL_UPDATE = |
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62 SQL.get("artifacts.update"); |
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63 |
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64 /** |
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65 * The SQL statement to touch the access time of an |
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66 * artifact inside the database. |
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67 */ |
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68 public static final String SQL_TOUCH = |
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69 SQL.get("artifacts.touch"); |
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70 |
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71 /** |
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72 * The SQL statement to load an artifact by a given |
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73 * identifier from the database. |
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74 */ |
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75 public static final String SQL_LOAD_BY_GID = |
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76 SQL.get("artifacts.select.gid"); |
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77 |
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78 /** |
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79 * The SQL statement to get the database id of an artifact |
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80 * identified by the identifier. |
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81 */ |
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82 public static final String SQL_GET_ID = |
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83 SQL.get("artifacts.get.id"); |
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84 |
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85 /** |
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86 * The SQL statement to replace the content of an |
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87 * existing artifact inside the database. |
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88 */ |
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89 public static final String SQL_REPLACE = |
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90 SQL.get("artifacts.replace"); |
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91 |
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92 // USER SQL |
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93 |
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94 public static final String SQL_USERS_NEXT_ID = |
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95 SQL.get("users.id.nextval"); |
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96 |
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97 public static final String SQL_USERS_INSERT = |
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98 SQL.get("users.insert"); |
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99 |
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100 public static final String SQL_USERS_SELECT_ID_BY_GID = |
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101 SQL.get("users.select.id.by.gid"); |
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102 |
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103 public static final String SQL_USERS_SELECT_GID = |
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104 SQL.get("users.select.gid"); |
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105 |
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106 public static final String SQL_USERS_DELETE_ID = |
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107 SQL.get("users.delete.id"); |
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108 |
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109 public static final String SQL_USERS_DELETE_COLLECTIONS = |
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110 SQL.get("users.delete.collections"); |
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111 |
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112 public static final String SQL_USERS_SELECT_ALL = |
133
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113 SQL.get("users.select.all"); |
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114 |
144
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115 public static final String SQL_USERS_COLLECTIONS = |
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116 SQL.get("users.collections"); |
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117 |
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118 public static final String SQL_USERS_COLLECTION_IDS = |
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119 SQL.get("users.collection.ids"); |
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120 |
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121 public static final String SQL_USERS_DELETE_ALL_COLLECTIONS = |
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122 SQL.get("users.delete.all.collections"); |
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123 |
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124 public static final String SQL_ARTIFACTS_IN_ONLY_COLLECTION_ONLY = |
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125 SQL.get("artifacts.in.one.collection.only"); |
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126 |
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127 public static final String SQL_OUTDATE_ARTIFACTS_COLLECTION = |
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128 SQL.get("outdate.artifacts.collection"); |
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129 |
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130 public static final String SQL_UPDATE_COLLECTION_TTL = |
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131 SQL.get("collections.update.ttl"); |
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132 |
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133 public static final String SQL_UPDATE_COLLECTION_NAME = |
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134 SQL.get("collections.update.name"); |
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135 |
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136 public static final String SQL_OUTDATE_ARTIFACTS_USER = |
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137 SQL.get("outdate.artifacts.user"); |
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138 |
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139 public static final String SQL_DELETE_USER_COLLECTION_ITEMS = |
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140 SQL.get("delete.user.collection.items"); |
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141 |
159
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142 public static final String SQL_COLLECTIONS_NEXT_ID = |
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143 SQL.get("collections.id.nextval"); |
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144 |
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145 public static final String SQL_COLLECTIONS_INSERT = |
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146 SQL.get("collections.insert"); |
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147 |
167
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148 public static final String SQL_COLLECTIONS_SELECT_USER = |
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149 SQL.get("collections.select.user"); |
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150 |
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151 public static final String SQL_COLLECTIONS_SELECT_ALL = |
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152 SQL.get("collections.select.all"); |
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153 |
217
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154 public static final String SQL_COLLECTIONS_SELECT_GID = |
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155 SQL.get("collections.select.by.gid"); |
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156 |
170
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157 public static final String SQL_COLLECTIONS_CREATION_TIME = |
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158 SQL.get("collection.creation.time"); |
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159 |
175
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160 public static final String SQL_COLLECTIONS_ID_BY_GID = |
187
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161 SQL.get("collections.id.by.gid"); |
175
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162 |
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163 public static final String SQL_DELETE_COLLECTION_ITEMS = |
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164 SQL.get("delete.collection.items"); |
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165 |
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166 public static final String SQL_DELETE_COLLECTION = |
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167 SQL.get("delete.collection"); |
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168 |
176
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169 public static final String SQL_COLLECTION_CHECK_ARTIFACT = |
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170 SQL.get("collection.check.artifact"); |
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171 |
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172 public static final String SQL_COLLECTION_ITEMS_ID_NEXTVAL = |
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173 SQL.get("collection.items.id.nextval"); |
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174 |
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175 public static final String SQL_COLLECTION_ITEMS_INSERT = |
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176 SQL.get("collection.items.insert"); |
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177 |
253
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178 public static final String SQL_COLLECTION_GET_ATTRIBUTE = |
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179 SQL.get("collection.get.attribute"); |
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180 |
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181 public static final String SQL_COLLECTION_SET_ATTRIBUTE = |
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182 SQL.get("collection.set.attribute"); |
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183 |
178
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184 public static final String SQL_COLLECTION_ITEM_GET_ATTRIBUTE = |
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185 SQL.get("collection.item.get.attribute"); |
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186 |
179
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187 public static final String SQL_COLLECTION_ITEM_SET_ATTRIBUTE = |
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188 SQL.get("collection.item.set.attribute"); |
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189 |
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190 public static final String SQL_COLLECTIONS_TOUCH_BY_GID = |
180
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191 SQL.get("collections.touch.by.gid"); |
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192 |
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193 public static final String SQL_COLLECTION_ITEM_ID_CID_AID = |
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194 SQL.get("collection.item.id.cid.aid"); |
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195 |
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196 public static final String SQL_COLLECTION_ITEM_OUTDATE_ARTIFACT = |
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197 SQL.get("collection.item.outdate.artifact"); |
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198 |
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199 public static final String SQL_COLLECTION_ITEM_DELETE = |
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200 SQL.get("collection.item.delete"); |
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201 |
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202 public static final String SQL_COLLECTIONS_TOUCH_BY_ID = |
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203 SQL.get("collections.touch.by.id"); |
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204 |
184
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205 public static final String SQL_COLLECTION_ITEMS_LIST_GID = |
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206 SQL.get("collection.items.list.gid"); |
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207 |
128
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208 /** The singleton.*/ |
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209 protected static Backend instance; |
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210 |
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211 /** |
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212 * The database cleaner. Reference is stored here because |
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213 * the cleaner is woken up if the backend finds an outdated |
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214 * artifact. This artifact should be removed as soon as |
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215 * possible. |
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216 */ |
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217 protected DatabaseCleaner cleaner; |
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218 |
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219 /** |
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220 * To revive an artifact from the bytes coming from the database |
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221 * we need the artifact factory which references the artifact |
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222 * serializer which is able to do the reviving job. |
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223 */ |
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224 protected FactoryLookup factoryLookup; |
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225 |
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226 /** |
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227 * Little helper interface to decouple the ArtifactDatabase |
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228 * from the Backend. A ArtifactDatabase should depend on a |
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229 * Backend but a Backend not from an ArtifactDatabase. |
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230 */ |
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231 public interface FactoryLookup { |
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232 |
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233 /** |
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234 * Returns an ArtifactFactory which is bound to a given name. |
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235 * @param factoryName The name of the artifact factory. |
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236 * @return The ArtifactFactory bound to the factory name or |
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237 * null if not matching factory is found. |
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238 */ |
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239 ArtifactFactory getArtifactFactory(String factoryName); |
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240 |
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241 } // interface FactoryLookup |
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242 |
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243 /** |
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244 * Inner class that brigdes between the persisten form of the |
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245 * artifact and the living one inside the artifact database. |
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246 * After the describe(), feed(), advance() and out() operations |
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247 * of the artifact it must be possible to write to modified artifact |
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248 * back into the database. |
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249 */ |
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250 public final class PersistentArtifact |
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251 { |
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252 private int id; |
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253 private Artifact artifact; |
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254 private ArtifactSerializer serializer; |
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255 private Long ttl; |
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256 |
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257 /** |
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258 * Cronstructor to create a persistent artifact. |
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259 * @param artifact The living artifact. |
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260 * @param serializer The serializer to store the artifact |
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261 * after the operations. |
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262 * @param ttl The time to life of the artifact. |
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263 * @param id The database id of the artifact. |
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264 */ |
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265 public PersistentArtifact( |
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266 Artifact artifact, |
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267 ArtifactSerializer serializer, |
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268 Long ttl, |
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269 int id |
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270 ) { |
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271 this.id = id; |
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272 this.artifact = artifact; |
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273 this.serializer = serializer; |
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274 this.ttl = ttl; |
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275 } |
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276 |
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277 public int getId() { |
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278 return id; |
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279 } |
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280 |
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281 /** |
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282 * Returns the wrapped living artifact. |
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283 * @return the living artifact. |
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284 */ |
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285 public Artifact getArtifact() { |
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286 return artifact; |
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287 } |
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288 |
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289 /** |
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290 * Returns the serialized which is able to write a |
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291 * modified artifact back into the database. |
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292 * @return The serializer. |
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293 */ |
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294 public ArtifactSerializer getSerializer() { |
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295 return serializer; |
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296 } |
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297 |
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298 /** |
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299 * The time to life of the artifact. |
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300 * @return The time to live. |
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301 */ |
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302 public Long getTTL() { |
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303 return ttl; |
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304 } |
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305 |
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306 /** |
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307 * Stores the living artifact back into the database. |
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308 */ |
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309 public void store() { |
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310 if (logger.isDebugEnabled()) { |
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311 logger.debug("storing artifact id = " + getId()); |
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312 } |
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313 Backend.this.store(this); |
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314 } |
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315 |
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316 /** |
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317 * Only touches the access time of the artifact. |
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318 */ |
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319 public void touch() { |
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320 if (logger.isDebugEnabled()) { |
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321 logger.debug("touching artifact id = " + getId()); |
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322 } |
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323 Backend.this.touch(this); |
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324 } |
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325 } // class ArtifactWithId |
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326 |
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327 /** |
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328 * Default constructor |
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329 */ |
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330 public Backend() { |
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331 } |
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332 |
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333 /** |
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334 * Constructor to create a backend with a link to the database cleaner. |
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335 * @param cleaner The clean which periodically removes outdated |
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336 * artifacts from the database. |
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337 */ |
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338 public Backend(DatabaseCleaner cleaner) { |
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339 this.cleaner = cleaner; |
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340 } |
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341 |
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342 |
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343 /** |
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344 * Returns the singleton of this Backend. |
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345 * |
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346 * @return the backend. |
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347 */ |
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348 public static synchronized Backend getInstance() { |
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349 if (instance == null) { |
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350 instance = new Backend(); |
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351 } |
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352 |
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353 return instance; |
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354 } |
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355 |
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356 /** |
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357 * Sets the factory lookup mechanism to decouple ArtifactDatabase |
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358 * and Backend. |
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359 * @param factoryLookup |
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360 */ |
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361 public void setFactoryLookup(FactoryLookup factoryLookup) { |
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362 this.factoryLookup = factoryLookup; |
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363 } |
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364 |
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365 /** |
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366 * Sets the database cleaner explicitly. |
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367 * @param cleaner The database cleaner |
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368 */ |
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369 public void setCleaner(DatabaseCleaner cleaner) { |
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370 this.cleaner = cleaner; |
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371 } |
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372 |
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373 /** |
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374 * Returns a new unique identifier to external identify |
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375 * the artifact across the system. This implementation |
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376 * uses random UUIDs v4 to achieve this target. |
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377 * @return the new identifier |
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378 */ |
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379 public String newIdentifier() { |
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380 // TODO: check database for collisions. |
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381 return StringUtils.newUUID(); |
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382 } |
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383 |
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384 public boolean isValidIdentifier(String identifier) { |
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385 return StringUtils.checkUUID(identifier); |
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386 } |
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387 |
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388 /** |
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389 * Stores a new artifact into the database. |
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390 * @param artifact The artifact to be stored |
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391 * @param factory The factory which build the artifact |
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392 * @param ttl The initial time to life of the artifact. |
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393 * @return A persistent wrapper around the living |
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394 * artifact to be able to write modification later. |
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395 * @throws Exception Thrown if something went wrong with the |
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396 * storage process. |
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397 */ |
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398 public PersistentArtifact storeInitially( |
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399 Artifact artifact, |
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400 ArtifactFactory factory, |
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401 Long ttl |
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402 ) |
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403 throws Exception |
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404 { |
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405 return new PersistentArtifact( |
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406 artifact, |
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407 factory.getSerializer(), |
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408 ttl, |
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409 insertDatabase(artifact, factory, ttl)); |
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410 } |
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411 |
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412 /** |
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413 * Stores an artifact into database if it does not exist there. |
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414 * If it exists there it is only updated. |
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415 * @param artifact The artifact to store/update. |
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416 * @param factory The factory which created the artifact. |
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417 * @param ttl The initial time to live of the artifact. |
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418 * @return A persistent version of the artifact to be able |
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419 * to store a modification later. |
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420 * @throws Exception Thrown if something went wrong during |
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421 * storing/updating. |
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422 */ |
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423 public PersistentArtifact storeOrReplace( |
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424 Artifact artifact, |
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425 ArtifactFactory factory, |
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426 Long ttl |
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427 ) |
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428 throws Exception |
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429 { |
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430 return new PersistentArtifact( |
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431 artifact, |
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432 factory.getSerializer(), |
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433 ttl, |
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434 storeOrReplaceDatabase(artifact, factory, ttl)); |
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435 } |
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436 |
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437 /** |
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438 * Implementors of this interface are able to process the raw |
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439 * artifact data from the database for loading. |
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440 */ |
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441 public interface ArtifactLoader { |
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442 |
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443 /** |
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444 * Creates a custom object from the raw artifact database data. |
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445 * @param factory The factory that created this artifact. |
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446 * @param ttl The current time to life of the artifact. |
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447 * @param bytes The raw artifact bytes from the database. |
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448 * @param id The database id of the artifact. |
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449 * @return The custom object created by the implementation. |
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450 */ |
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451 Object load(ArtifactFactory factory, Long ttl, byte [] bytes, int id); |
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452 |
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453 } // interface ArtifactLoader |
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454 |
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455 /** |
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456 * Fetches an artifact from the database identified by the |
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457 * given identifier. |
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458 * @param identifer The identifier of the artifact. |
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459 * @return A persistent wrapper around the found artifact |
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460 * to be able to write back a modifaction later or null |
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461 * if no artifact is found for this identifier. |
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462 */ |
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463 public PersistentArtifact getArtifact(String identifer) { |
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464 |
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465 return (PersistentArtifact)loadArtifact( |
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466 identifer, |
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467 new ArtifactLoader() { |
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468 |
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469 public Object load( |
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470 ArtifactFactory factory, |
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471 Long ttl, |
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472 byte [] bytes, |
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473 int id |
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474 ) { |
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475 ArtifactSerializer serializer = factory.getSerializer(); |
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476 |
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477 Artifact artifact = serializer.fromBytes(bytes); |
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478 |
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479 return artifact == null |
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480 ? null |
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481 : new PersistentArtifact(artifact, serializer, ttl, id); |
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482 } |
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483 }); |
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484 } |
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485 |
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486 /** |
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487 * More general loading mechanism for artifacts. The concrete |
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488 * load processing is delegated to the given loader. |
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489 * @param identifer The identifier of the artifact. |
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490 * @param loader The loader which processes the raw database data. |
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491 * @return The object created by the loader. |
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492 */ |
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493 public Object loadArtifact( |
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494 final String identifer, |
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495 final ArtifactLoader loader |
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496 ) { |
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497 if (!isValidIdentifier(identifer)) { |
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498 return null; |
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499 } |
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500 |
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501 final Object [] loaded = new Object[1]; |
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502 |
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503 SQLExecutor exec = new SQLExecutor() { |
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504 public boolean doIt() throws SQLException { |
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505 prepareStatement(SQL_LOAD_BY_GID); |
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506 stmnt.setString(1, identifer); |
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507 |
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508 result = stmnt.executeQuery(); |
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509 |
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510 if (!result.next()) { |
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511 return false; |
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512 } |
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513 |
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514 int id = result.getInt(1); |
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515 long ttlX = result.getLong(2); |
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516 Long ttl = result.wasNull() ? null : ttlX; |
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517 |
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518 String factoryName = result.getString(3); |
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519 |
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520 if (factoryLookup == null) { |
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521 logger.error("factory lookup == null"); |
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522 return false; |
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523 } |
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524 |
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525 ArtifactFactory factory = factoryLookup |
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526 .getArtifactFactory(factoryName); |
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527 |
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528 if (factory == null) { |
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529 logger.error("factory '" + factoryName + "' not found"); |
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530 return false; |
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531 } |
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532 |
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533 byte [] bytes = result.getBytes(4); |
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534 |
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535 loaded[0] = loader.load(factory, ttl, bytes, id); |
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536 return true; |
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537 } |
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538 }; |
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539 |
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540 return exec.runRead() ? loaded[0] : null; |
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541 } |
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542 |
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543 /** |
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544 * Called if the load mechanism found an outdated artifact. |
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545 * It wakes up the database cleaner. |
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546 * @param id The id of the outdated artifact. |
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547 */ |
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548 protected void artifactOutdated(int id) { |
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549 if (logger.isDebugEnabled()) { |
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550 logger.info("artifactOutdated: id = " + id); |
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551 } |
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552 if (cleaner != null) { |
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553 cleaner.wakeup(); |
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554 } |
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555 } |
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556 |
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557 public Artifact reviveArtifact(String factoryName, byte [] bytes) { |
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558 if (factoryLookup == null) { |
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559 logger.error("reviveArtifact: factory lookup == null"); |
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560 return null; |
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561 } |
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562 ArtifactFactory factory = factoryLookup |
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563 .getArtifactFactory(factoryName); |
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564 |
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565 if (factory == null) { |
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566 logger.error( |
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567 "reviveArtifact: no factory '" + factoryName + "' found"); |
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568 return null; |
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569 } |
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570 |
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571 ArtifactSerializer serializer = factory.getSerializer(); |
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572 |
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573 return serializer.fromBytes(bytes); |
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574 } |
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575 |
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576 /** |
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577 * Internal method to store/replace an artifact inside the database. |
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578 * If an artifact with the given identifier does not exists it is |
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579 * created else only the content data is updated. |
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580 * @param artifact The artifact to be store/update inside the database. |
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581 * @param factory The factory that created the artifact. |
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582 * @param ttl The initial time to life of the artifact. |
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583 * @return The database id of the stored/updated artifact. |
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584 */ |
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585 protected int storeOrReplaceDatabase( |
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586 final Artifact artifact, |
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587 final ArtifactFactory factory, |
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588 final Long ttl |
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589 ) { |
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590 final String uuid = artifact.identifier(); |
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591 |
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592 if (!isValidIdentifier(uuid)) { |
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593 throw new RuntimeException("No valid UUID"); |
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594 } |
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595 |
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596 final int [] id = new int[1]; |
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597 |
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598 SQLExecutor exec = new SQLExecutor() { |
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599 public boolean doIt() throws SQLException { |
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600 |
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601 prepareStatement(SQL_GET_ID); |
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602 stmnt.setString(1, uuid); |
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603 result = stmnt.executeQuery(); |
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604 |
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605 Integer ID = result.next() |
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606 ? Integer.valueOf(result.getInt(1)) |
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607 : null; |
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608 |
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609 reset(); |
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610 |
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611 if (ID != null) { // already in database |
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612 prepareStatement(SQL_REPLACE); |
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613 |
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614 if (ttl == null) { |
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615 stmnt.setNull(1, Types.BIGINT); |
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616 } |
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617 else { |
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618 stmnt.setLong(1, ttl.longValue()); |
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619 } |
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620 |
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621 stmnt.setString(2, factory.getName()); |
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622 stmnt.setBytes( |
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623 3, |
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624 factory.getSerializer().toBytes(artifact)); |
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625 id[0] = ID.intValue(); |
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626 stmnt.setInt(4, id[0]); |
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627 } |
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628 else { // new artifact |
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629 prepareStatement(SQL_NEXT_ID); |
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630 result = stmnt.executeQuery(); |
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631 |
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632 if (!result.next()) { |
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633 logger.error("No id generated"); |
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634 return false; |
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635 } |
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636 |
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637 reset(); |
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638 |
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639 prepareStatement(SQL_INSERT); |
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640 |
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641 id[0] = result.getInt(1); |
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642 stmnt.setInt(1, id[0]); |
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643 stmnt.setString(2, uuid); |
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644 if (ttl == null) { |
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645 stmnt.setNull(3, Types.BIGINT); |
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646 } |
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647 else { |
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648 stmnt.setLong(3, ttl.longValue()); |
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649 } |
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650 |
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651 stmnt.setString(4, factory.getName()); |
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652 |
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653 stmnt.setBytes( |
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654 5, |
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655 factory.getSerializer().toBytes(artifact)); |
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656 } |
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657 stmnt.execute(); |
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658 conn.commit(); |
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659 return true; |
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660 } |
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661 }; |
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662 |
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663 if (!exec.runWrite()) { |
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664 throw new RuntimeException("failed insert artifact into database"); |
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665 } |
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666 |
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667 return id[0]; |
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668 } |
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669 |
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670 /** |
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671 * Internal method to store an artifact inside the database. |
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672 * @param artifact The artifact to be stored. |
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673 * @param factory The factory which created the artifact. |
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674 * @param ttl The initial time to live of the artifact. |
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675 * @return The database id of the stored artifact. |
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676 */ |
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677 protected int insertDatabase( |
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678 final Artifact artifact, |
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679 final ArtifactFactory factory, |
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680 final Long ttl |
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681 ) { |
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682 final int [] id = new int[1]; |
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683 |
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684 SQLExecutor exec = new SQLExecutor() { |
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685 public boolean doIt() throws SQLException { |
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686 prepareStatement(SQL_NEXT_ID); |
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687 result = stmnt.executeQuery(); |
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688 |
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689 if (!result.next()) { |
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690 logger.error("No id generated"); |
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691 return false; |
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692 } |
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693 |
174
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694 id[0] = result.getInt(1); |
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695 |
174
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696 reset(); |
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697 prepareStatement(SQL_INSERT); |
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698 |
174
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699 String uuid = artifact.identifier(); |
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700 stmnt.setInt(1, id[0]); |
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701 stmnt.setString(2, uuid); |
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702 if (ttl == null) { |
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703 stmnt.setNull(3, Types.BIGINT); |
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704 } |
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705 else { |
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706 stmnt.setLong(3, ttl.longValue()); |
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707 } |
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708 |
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709 stmnt.setString(4, factory.getName()); |
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710 |
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711 stmnt.setBytes( |
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712 5, |
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713 factory.getSerializer().toBytes(artifact)); |
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714 |
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715 stmnt.execute(); |
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716 |
174
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717 conn.commit(); |
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718 return true; |
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719 } |
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720 }; |
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721 |
174
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722 if (!exec.runWrite()) { |
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723 throw new RuntimeException("failed insert artifact into database"); |
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724 } |
174
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725 |
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726 return id[0]; |
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727 } |
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728 |
90
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729 /** |
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730 * Touches the access timestamp of a given artifact to prevent |
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731 * that it will be removed from the database by the database cleaner. |
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732 * @param artifact The persistent wrapper around the living artifact. |
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733 */ |
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734 public void touch(final PersistentArtifact artifact) { |
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735 new SQLExecutor() { |
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736 public boolean doIt() throws SQLException { |
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737 prepareStatement(SQL_TOUCH); |
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738 stmnt.setInt(1, artifact.getId()); |
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739 stmnt.execute(); |
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740 conn.commit(); |
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741 return true; |
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742 } |
174
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743 }.runWrite(); |
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744 } |
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745 |
90
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746 /** |
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747 * Writes modification of an artifact back to the database. |
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748 * @param artifact The persistent wrapper around a living |
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749 * artifact. |
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750 */ |
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751 public void store(final PersistentArtifact artifact) { |
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752 new SQLExecutor() { |
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753 public boolean doIt() throws SQLException { |
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754 prepareStatement(SQL_UPDATE); |
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755 stmnt.setInt(2, artifact.getId()); |
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|
756 |
174
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757 byte [] bytes = artifact |
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758 .getSerializer() |
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759 .toBytes(artifact.getArtifact()); |
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760 |
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761 stmnt.setBytes(1, bytes); |
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762 stmnt.execute(); |
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763 conn.commit(); |
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764 return true; |
26
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765 } |
174
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766 }.runWrite(); |
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767 } |
133
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768 |
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769 public User createUser( |
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770 final String name, |
174
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771 final Document role, |
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772 final UserFactory factory, |
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773 final Object context |
133
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774 ) { |
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775 final User [] user = new User[1]; |
138
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776 |
235
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777 final byte [] roleData = XMLUtils.toByteArray(role, true); |
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778 |
174
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779 SQLExecutor exec = new SQLExecutor() { |
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780 public boolean doIt() throws SQLException { |
138
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781 |
174
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782 prepareStatement(SQL_USERS_NEXT_ID); |
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783 result = stmnt.executeQuery(); |
138
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784 |
146
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|
785 if (!result.next()) { |
174
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786 return false; |
138
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787 } |
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788 |
145
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789 int id = result.getInt(1); |
138
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|
790 |
174
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791 reset(); |
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792 |
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793 String identifier = newIdentifier(); |
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794 |
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|
795 prepareStatement(SQL_USERS_INSERT); |
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796 |
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797 stmnt.setInt(1, id); |
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798 stmnt.setString(2, identifier); |
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799 stmnt.setString(3, name); |
138
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800 |
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801 if (roleData == null) { |
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802 stmnt.setNull(4, Types.BIGINT); |
138
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803 } |
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804 else { |
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805 stmnt.setBytes(4, roleData); |
138
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806 } |
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807 |
174
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changeset
|
808 stmnt.execute(); |
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809 conn.commit(); |
138
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810 |
174
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811 user[0] = factory.createUser( |
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812 identifier, name, role, context); |
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813 return true; |
138
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814 } |
174
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815 }; |
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816 |
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817 return exec.runWrite() ? user[0] : null; |
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818 } |
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|
819 |
174
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820 public boolean deleteUser(final String identifier) { |
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821 |
177
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|
822 if (!isValidIdentifier(identifier)) { |
154
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823 return false; |
147
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824 } |
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825 |
174
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826 SQLExecutor exec = new SQLExecutor() { |
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827 public boolean doIt() throws SQLException { |
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828 prepareStatement(SQL_USERS_SELECT_ID_BY_GID); |
144
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829 |
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830 stmnt.setString(1, identifier); |
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831 result = stmnt.executeQuery(); |
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|
832 |
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|
833 if (!result.next()) { // No such user |
154
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|
834 return false; |
144
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|
835 } |
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|
836 |
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|
837 int id = result.getInt(1); |
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|
838 |
174
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|
839 reset(); |
144
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|
840 |
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841 // outdate the artifacts exclusively used by the user |
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|
842 |
174
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|
843 prepareStatement(SQL_OUTDATE_ARTIFACTS_USER); |
144
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|
844 stmnt.setInt(1, id); |
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|
845 stmnt.setInt(2, id); |
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|
846 stmnt.execute(); |
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|
847 |
174
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|
848 reset(); |
144
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|
849 |
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850 // delete the collection items of the user |
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|
851 |
174
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|
852 prepareStatement(SQL_DELETE_USER_COLLECTION_ITEMS); |
144
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|
853 stmnt.setInt(1, id); |
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diff
changeset
|
854 stmnt.execute(); |
233
16cd059945e5
Removed trailing whitespace.
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230
diff
changeset
|
855 |
174
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|
856 reset(); |
144
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changeset
|
857 |
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|
858 // delete the collections of the user |
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|
859 |
174
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|
860 prepareStatement(SQL_USERS_DELETE_COLLECTIONS); |
144
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|
861 stmnt.setInt(1, id); |
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changeset
|
862 stmnt.execute(); |
174
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|
863 |
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changeset
|
864 reset(); |
144
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diff
changeset
|
865 |
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|
866 // delete the user |
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|
867 |
174
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|
868 prepareStatement(SQL_USERS_DELETE_ID); |
144
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|
869 stmnt.setInt(1, id); |
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|
870 stmnt.execute(); |
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|
871 |
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|
872 conn.commit(); |
154
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|
873 return true; |
144
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|
874 } |
174
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|
875 }; |
154
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|
876 |
174
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changeset
|
877 return exec.runWrite(); |
133
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|
878 } |
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|
879 |
157
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|
880 public User getUser( |
233
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|
881 final String identifier, |
174
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|
882 final UserFactory factory, |
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|
883 final Object context |
157
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|
884 ) { |
177
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|
885 if (!isValidIdentifier(identifier)) { |
147
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|
886 logger.debug("Invalid UUID: '" + identifier + "'"); |
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|
887 return null; |
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|
888 } |
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changeset
|
889 |
174
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|
890 final User [] user = new User[1]; |
147
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|
891 |
174
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|
892 SQLExecutor exec = new SQLExecutor() { |
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|
893 public boolean doIt() throws SQLException { |
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|
894 prepareStatement(SQL_USERS_SELECT_GID); |
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|
895 stmnt.setString(1, identifier); |
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|
896 result = stmnt.executeQuery(); |
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|
897 if (!result.next()) { // no such user |
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|
898 return false; |
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899 } |
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|
900 // omit id |
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901 String name = result.getString(2); |
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|
902 byte [] roleData = result.getBytes(3); |
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903 |
235
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diff
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|
904 Document role = XMLUtils.fromByteArray(roleData, true); |
174
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|
905 |
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|
906 user[0] = factory.createUser( |
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|
907 identifier, name, role, context); |
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|
908 return true; |
147
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Added code to load user from database.
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parents:
146
diff
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|
909 } |
174
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|
910 }; |
147
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Added code to load user from database.
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146
diff
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|
911 |
174
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|
912 return exec.runRead() ? user[0] : null; |
133
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Fixed typo in keys.
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128
diff
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|
913 } |
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Fixed typo in keys.
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diff
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|
914 |
174
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|
915 public User [] getUsers( |
233
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diff
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|
916 final UserFactory factory, |
174
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|
917 final Object context |
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|
918 ) { |
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|
919 final ArrayList<User> users = new ArrayList<User>(); |
148
101a52d3ad08
Added code to load all users from database.
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diff
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|
920 |
174
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|
921 SQLExecutor exec = new SQLExecutor() { |
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|
922 public boolean doIt() throws SQLException { |
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|
923 prepareStatement(SQL_USERS_SELECT_ALL); |
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|
924 result = stmnt.executeQuery(); |
148
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|
925 |
174
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|
926 while (result.next()) { |
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|
927 // omit id |
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|
928 String identifier = result.getString(2); |
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|
929 String name = result.getString(3); |
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|
930 byte [] roleData = result.getBytes(4); |
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|
931 |
235
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|
932 Document role = XMLUtils.fromByteArray(roleData, true); |
174
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|
933 User user = factory.createUser( |
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|
934 identifier, name, role, context); |
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|
935 users.add(user); |
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|
936 } |
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|
937 return true; |
148
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diff
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|
938 } |
174
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diff
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|
939 }; |
148
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diff
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|
940 |
174
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|
941 return exec.runRead() |
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|
942 ? users.toArray(new User[users.size()]) |
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|
943 : null; |
133
2950c6011afa
Fixed typo in keys.
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128
diff
changeset
|
944 } |
156
a76de72ad6d1
Added stubs for the collection handling in db backend.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
154
diff
changeset
|
945 |
159
db0d20440b92
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diff
changeset
|
946 public ArtifactCollection createCollection( |
233
16cd059945e5
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diff
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|
947 final String ownerIdentifier, |
174
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|
948 final String name, |
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diff
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|
949 final ArtifactCollectionFactory factory, |
199
face2302387c
Insert collection attribute into database, too.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
194
diff
changeset
|
950 final Document attribute, |
174
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|
951 final Object context |
159
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diff
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|
952 ) { |
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|
953 if (name == null) { |
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diff
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|
954 logger.debug("Name is null"); |
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diff
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|
955 return null; |
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diff
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|
956 } |
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158
diff
changeset
|
957 |
177
77cd37a93fca
Backend: isIdentifierValid more symmetric to new newIndentifier
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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176
diff
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|
958 if (!isValidIdentifier(ownerIdentifier)) { |
159
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|
959 logger.debug("Invalid owner id: '" + ownerIdentifier + "'"); |
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|
960 return null; |
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diff
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|
961 } |
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diff
changeset
|
962 |
235
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|
963 final ArtifactCollection [] collection = new ArtifactCollection[1]; |
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|
964 |
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diff
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|
965 final byte [] data = XMLUtils.toByteArray(attribute, true); |
159
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diff
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|
966 |
174
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|
967 SQLExecutor exec = new SQLExecutor() { |
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|
968 public boolean doIt() throws SQLException { |
159
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diff
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|
969 // fetch owner id |
174
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|
970 prepareStatement(SQL_USERS_SELECT_ID_BY_GID); |
159
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|
971 stmnt.setString(1, ownerIdentifier); |
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|
972 result = stmnt.executeQuery(); |
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|
973 |
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|
974 if (!result.next()) { // no such user |
174
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|
975 return false; |
159
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|
976 } |
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diff
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|
977 |
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|
978 int ownerId = result.getInt(1); |
174
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|
979 reset(); |
159
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|
980 |
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diff
changeset
|
981 // fetch new collection seq number. |
174
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changeset
|
982 prepareStatement(SQL_COLLECTIONS_NEXT_ID); |
159
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|
983 result = stmnt.executeQuery(); |
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|
984 |
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changeset
|
985 if (!result.next()) { // no identifier generated |
174
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|
986 return false; |
159
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diff
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|
987 } |
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diff
changeset
|
988 |
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|
989 int id = result.getInt(1); |
174
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|
990 reset(); |
159
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|
991 |
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diff
changeset
|
992 String identifier = newIdentifier(); |
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|
993 |
174
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|
994 prepareStatement(SQL_COLLECTIONS_INSERT); |
159
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diff
changeset
|
995 |
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diff
changeset
|
996 stmnt.setInt(1, id); |
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diff
changeset
|
997 stmnt.setString(2, identifier); |
161
e4a1562dfc21
Bugfixed the collection creation in the Backend.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
159
diff
changeset
|
998 stmnt.setString(3, name); |
e4a1562dfc21
Bugfixed the collection creation in the Backend.
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parents:
159
diff
changeset
|
999 stmnt.setInt(4, ownerId); |
159
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diff
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|
1000 |
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diff
changeset
|
1001 // XXX: A bit odd: we don't have a collection, yet. |
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|
1002 Long ttl = factory.timeToLiveUntouched(null, context); |
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|
1003 |
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diff
changeset
|
1004 if (ttl == null) { |
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changeset
|
1005 stmnt.setNull(5, Types.BIGINT); |
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|
1006 } |
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diff
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|
1007 else { |
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diff
changeset
|
1008 stmnt.setLong(5, ttl); |
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|
1009 } |
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1010 |
199
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1011 if (data == null) { |
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1012 stmnt.setNull(6, Types.BINARY); |
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1013 } |
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1014 else { |
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1015 stmnt.setBytes(6, data); |
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1016 } |
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1017 |
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1018 stmnt.execute(); |
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1019 conn.commit(); |
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1020 |
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1021 reset(); |
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1022 |
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1023 // fetch creation time from database |
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1024 // done this way to use the time system |
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1025 // of the database. |
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1026 |
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1027 prepareStatement(SQL_COLLECTIONS_CREATION_TIME); |
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1028 stmnt.setInt(1, id); |
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1029 |
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1030 result = stmnt.executeQuery(); |
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1031 |
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1032 Date creationTime = null; |
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1033 |
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1034 if (result.next()) { |
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1035 Timestamp timestamp = result.getTimestamp(1); |
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1036 creationTime = new Date(timestamp.getTime()); |
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1037 } |
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1038 |
174
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1039 collection[0] = factory.createCollection( |
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1040 identifier, name, creationTime, ttl, attribute, context); |
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1041 |
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1042 return true; |
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1043 } |
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1044 }; |
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1045 |
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1046 return exec.runWrite() ? collection[0]: null; |
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1047 } |
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1048 |
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1049 public ArtifactCollection getCollection( |
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1050 final String collectionId, |
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1051 final ArtifactCollectionFactory collectionFactory, |
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1052 final UserFactory userFactory, |
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1053 final Object context |
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1054 ) { |
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1055 if (!isValidIdentifier(collectionId)) { |
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1056 logger.debug("collection id is not valid: " + collectionId); |
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1057 return null; |
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1058 } |
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1059 |
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1060 final ArtifactCollection[] ac = new ArtifactCollection[1]; |
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1061 |
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1062 SQLExecutor exec = new SQLExecutor() { |
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1063 public boolean doIt() throws SQLException { |
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1064 |
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1065 prepareStatement(SQL_COLLECTIONS_SELECT_GID); |
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1066 stmnt.setString(1, collectionId); |
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1067 |
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1068 result = stmnt.executeQuery(); |
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1069 if (!result.next()) { |
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1070 logger.debug("No such collection"); |
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1071 return false; |
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1072 } |
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1073 |
235
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1074 String collectionName = result.getString(2); |
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1075 String ownerId = result.getString(3); |
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1076 Date creationTime = |
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1077 new Date(result.getTimestamp(4).getTime()); |
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1078 Date lastAccess = |
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1079 new Date(result.getTimestamp(5).getTime()); |
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1080 Document attr = |
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1081 XMLUtils.fromByteArray(result.getBytes(6), true); |
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1082 long ttl = result.getLong(7); |
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1083 |
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1084 ArtifactCollection collection = |
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1085 collectionFactory.createCollection( |
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1086 collectionId, |
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1087 collectionName, |
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1088 creationTime, |
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1089 ttl, |
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1090 attr, |
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1091 context); |
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1092 |
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1093 if (ownerId != null) { |
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1094 collection.setUser(new LazyBackendUser( |
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1095 ownerId, userFactory, Backend.this, context)); |
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1096 } |
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1097 |
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1098 ac[0] = collection; |
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1099 |
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1100 return true; |
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1101 } |
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1102 }; |
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1103 |
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1104 return exec.runRead() ? ac[0] : null; |
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1105 } |
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1106 |
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1107 public ArtifactCollection [] listCollections( |
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1108 final String ownerIdentifier, |
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1109 final Document data, |
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1110 final ArtifactCollectionFactory collectionFactory, |
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1111 final UserFactory userFactory, |
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1112 final Object context |
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1113 ) { |
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1114 if (ownerIdentifier != null |
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1115 && !isValidIdentifier(ownerIdentifier)) { |
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|
1116 logger.debug("Invalid owner id: '" + ownerIdentifier + "'"); |
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1117 return null; |
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1118 } |
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1119 |
174
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1120 final ArrayList<ArtifactCollection> collections = |
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1121 new ArrayList<ArtifactCollection>(); |
167
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1122 |
174
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1123 SQLExecutor exec = new SQLExecutor() { |
167
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1124 |
174
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1125 public boolean doIt() throws SQLException { |
167
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1126 |
174
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1127 if (ownerIdentifier != null) { |
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1128 prepareStatement(SQL_COLLECTIONS_SELECT_USER); |
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1129 stmnt.setString(1, ownerIdentifier); |
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1130 } |
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1131 else { |
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1132 prepareStatement(SQL_COLLECTIONS_SELECT_ALL); |
167
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1133 } |
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1134 |
174
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1135 result = stmnt.executeQuery(); |
167
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1136 |
235
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1137 HashMap<String, LazyBackendUser> users = |
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1138 new HashMap<String, LazyBackendUser>(); |
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1139 |
174
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1140 while (result.next()) { |
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1141 String collectionIdentifier = result.getString(1); |
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1142 String collectionName = result.getString(2); |
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1143 Date creationTime = |
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1144 new Date(result.getTimestamp(3).getTime()); |
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1145 String userIdentifier = result.getString(4); |
281
942a54670a72
Made the TTL of a Collection retrievable via getter method.
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|
1146 long ttl = result.getLong(5); |
174
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1147 |
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1148 ArtifactCollection collection = |
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1149 collectionFactory.createCollection( |
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1150 collectionIdentifier, |
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1151 collectionName, |
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|
1152 creationTime, |
281
942a54670a72
Made the TTL of a Collection retrievable via getter method.
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|
1153 ttl, |
174
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1154 data, |
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|
1155 context); |
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|
1156 |
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|
1157 if (userIdentifier != null) { |
235
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1158 LazyBackendUser user = users.get(userIdentifier); |
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|
1159 if (user == null) { |
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|
1160 user = new LazyBackendUser( |
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|
1161 userIdentifier, userFactory, |
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|
1162 Backend.this, context); |
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1163 users.put(userIdentifier, user); |
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|
1164 } |
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|
1165 collection.setUser(user); |
174
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|
1166 } |
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|
1167 |
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|
1168 collections.add(collection); |
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|
1169 } |
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diff
changeset
|
1170 return true; |
167
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diff
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|
1171 } |
174
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|
1172 }; |
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|
1173 |
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|
1174 return exec.runRead() |
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|
1175 ? collections.toArray(new ArtifactCollection[collections.size()]) |
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|
1176 : null; |
156
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|
1177 } |
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diff
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|
1178 |
174
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diff
changeset
|
1179 |
175
16e6e661e6bf
Added code to delete collections.
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diff
changeset
|
1180 public boolean deleteCollection(final String collectionId) { |
177
77cd37a93fca
Backend: isIdentifierValid more symmetric to new newIndentifier
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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176
diff
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|
1181 if (!isValidIdentifier(collectionId)) { |
175
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diff
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|
1182 logger.debug("Invalid collection id: '" + collectionId + "'"); |
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|
1183 return false; |
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diff
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|
1184 } |
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diff
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|
1185 SQLExecutor exec = new SQLExecutor() { |
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diff
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|
1186 public boolean doIt() throws SQLException { |
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diff
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|
1187 // fetch collection id |
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|
1188 prepareStatement(SQL_COLLECTIONS_ID_BY_GID); |
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diff
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|
1189 stmnt.setString(1, collectionId); |
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diff
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|
1190 result = stmnt.executeQuery(); |
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diff
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|
1191 if (!result.next()) { |
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diff
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|
1192 logger.debug("No such collection: " + collectionId); |
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174
diff
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|
1193 return false; |
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diff
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|
1194 } |
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|
1195 int id = result.getInt(1); |
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diff
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|
1196 reset(); |
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diff
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|
1197 |
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diff
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|
1198 // outdate artifacts that are only in this collection |
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|
1199 prepareStatement(SQL_OUTDATE_ARTIFACTS_COLLECTION); |
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|
1200 stmnt.setInt(1, id); |
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|
1201 stmnt.setInt(2, id); |
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|
1202 stmnt.execute(); |
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|
1203 reset(); |
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|
1204 |
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|
1205 // delete the collection items |
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|
1206 prepareStatement(SQL_DELETE_COLLECTION_ITEMS); |
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|
1207 stmnt.setInt(1, 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 |
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|
1212 prepareStatement(SQL_DELETE_COLLECTION); |
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1213 stmnt.setInt(1, id); |
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|
1214 stmnt.execute(); |
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|
1215 conn.commit(); |
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|
1216 return true; |
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|
1217 } |
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|
1218 }; |
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|
1219 return exec.runWrite(); |
156
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|
1220 } |
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1221 |
253
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Enabled the artifact database to handle requests specific to collection attributes and collection item attributes.
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changeset
|
1222 public Document getCollectionAttribute(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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|
1223 if (!isValidIdentifier(collectionId)) { |
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|
1224 logger.debug("collection id is not valid: " + collectionId); |
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1225 } |
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1226 |
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1227 final byte[][] data = new byte[1][1]; |
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1228 |
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1229 SQLExecutor exec = new SQLExecutor() { |
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1230 public boolean doIt() throws SQLException { |
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1231 prepareStatement(SQL_COLLECTION_GET_ATTRIBUTE); |
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1232 stmnt.setString(1, collectionId); |
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1233 result = stmnt.executeQuery(); |
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1234 if (!result.next()) { |
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1235 logger.debug("No such collection."); |
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1236 return false; |
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1237 } |
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1238 |
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|
1239 data[0] = result.getBytes(1); |
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1240 return true; |
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1241 } |
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1242 }; |
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1243 |
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1244 return exec.runRead() |
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1245 ? XMLUtils.fromByteArray(data[0], true) |
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1246 : null; |
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1247 } |
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1248 |
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|
1249 public boolean setCollectionAttribute( |
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1250 final String collectionId, |
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1251 Document attribute |
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1252 ) { |
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1253 if (!isValidIdentifier(collectionId)) { |
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1254 logger.debug("collection id is not valid: " + collectionId); |
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1255 return false; |
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1256 } |
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|
1257 |
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|
1258 final byte [] data = XMLUtils.toByteArray(attribute, true); |
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1259 |
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|
1260 return new SQLExecutor() { |
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|
1261 public boolean doIt() throws SQLException { |
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|
1262 |
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changeset
|
1263 // set the column in collection items |
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|
1264 prepareStatement(SQL_COLLECTION_SET_ATTRIBUTE); |
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|
1265 if (data == null) { |
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|
1266 stmnt.setNull(1, Types.BINARY); |
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|
1267 } |
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|
1268 else { |
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changeset
|
1269 stmnt.setBytes(1, data); |
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|
1270 } |
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diff
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|
1271 stmnt.setString(2, collectionId); |
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|
1272 stmnt.execute(); |
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|
1273 reset(); |
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diff
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|
1274 |
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diff
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|
1275 // touch the collection |
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changeset
|
1276 prepareStatement(SQL_COLLECTIONS_TOUCH_BY_GID); |
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diff
changeset
|
1277 stmnt.setString(1, collectionId); |
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diff
changeset
|
1278 stmnt.execute(); |
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diff
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|
1279 |
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diff
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|
1280 conn.commit(); |
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|
1281 return true; |
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1282 } |
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diff
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|
1283 }.runWrite(); |
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|
1284 } |
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diff
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|
1285 |
252
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Changed the method names to get and set the attributes of collection items.
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diff
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|
1286 public Document getCollectionItemAttribute( |
178
535e4ea2ef9b
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1287 final String collectionId, |
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diff
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|
1288 final String artifactId |
156
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diff
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|
1289 ) { |
178
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1290 if (!isValidIdentifier(collectionId)) { |
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|
1291 logger.debug("collection id is not valid: " + collectionId); |
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1292 return null; |
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1293 } |
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|
1294 if (!isValidIdentifier(artifactId)) { |
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|
1295 logger.debug("artifact id is not valid: " + artifactId); |
179
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|
1296 return null; |
178
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1297 } |
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1298 |
235
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|
1299 final byte [][] data = new byte[1][1]; |
178
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1300 |
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diff
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1301 SQLExecutor exec = new SQLExecutor() { |
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1302 public boolean doIt() throws SQLException { |
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|
1303 prepareStatement(SQL_COLLECTION_ITEM_GET_ATTRIBUTE); |
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1304 stmnt.setString(1, collectionId); |
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1305 stmnt.setString(2, artifactId); |
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|
1306 result = stmnt.executeQuery(); |
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1307 if (!result.next()) { |
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|
1308 logger.debug("No such collection item"); |
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1309 return false; |
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1310 } |
235
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|
1311 data[0] = result.getBytes(1); |
178
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|
1312 return true; |
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1313 } |
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|
1314 }; |
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1315 |
235
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|
1316 return exec.runRead() |
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1317 ? XMLUtils.fromByteArray(data[0], true) |
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1318 : null; |
156
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1319 } |
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1320 |
252
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changeset
|
1321 public boolean setCollectionItemAttribute( |
233
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Removed trailing whitespace.
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diff
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|
1322 final String collectionId, |
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|
1323 final String artifactId, |
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1324 Document attribute |
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1325 ) { |
179
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1326 if (!isValidIdentifier(collectionId)) { |
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1327 logger.debug("collection id is not valid: " + collectionId); |
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|
1328 return false; |
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1329 } |
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1330 if (!isValidIdentifier(artifactId)) { |
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|
1331 logger.debug("artifact id is not valid: " + artifactId); |
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1332 return false; |
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1333 } |
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1334 |
235
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1335 final byte [] data = XMLUtils.toByteArray(attribute, true); |
179
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1336 |
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1337 return new SQLExecutor() { |
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1338 public boolean doIt() throws SQLException { |
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1339 |
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1340 // set the column in collection items |
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1341 prepareStatement(SQL_COLLECTION_ITEM_SET_ATTRIBUTE); |
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1342 if (data == null) { |
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1343 stmnt.setNull(1, Types.BINARY); |
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1344 } |
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1345 else { |
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1346 stmnt.setBytes(1, data); |
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1347 } |
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1348 stmnt.setString(2, collectionId); |
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1349 stmnt.setString(3, artifactId); |
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1350 stmnt.execute(); |
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1351 reset(); |
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1352 |
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|
1353 // touch the collection |
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|
1354 prepareStatement(SQL_COLLECTIONS_TOUCH_BY_GID); |
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1355 stmnt.setString(1, collectionId); |
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1356 stmnt.execute(); |
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1357 |
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1358 conn.commit(); |
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1359 return true; |
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1360 } |
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|
1361 }.runWrite(); |
156
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1362 } |
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1363 |
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diff
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|
1364 public boolean addCollectionArtifact( |
176
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1365 final String collectionId, |
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1366 final String artifactId, |
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|
1367 final Document attribute |
156
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|
1368 ) { |
177
77cd37a93fca
Backend: isIdentifierValid more symmetric to new newIndentifier
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diff
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|
1369 if (!isValidIdentifier(collectionId)) { |
176
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|
1370 logger.debug("Invalid collection id: '" + collectionId + "'"); |
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1371 return false; |
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|
1372 } |
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|
1373 |
177
77cd37a93fca
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|
1374 if (!isValidIdentifier(artifactId)) { |
176
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|
1375 logger.debug("Invalid artifact id: '" + artifactId + "'"); |
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1376 return false; |
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|
1377 } |
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|
1378 |
235
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diff
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|
1379 final byte [] data = XMLUtils.toByteArray(attribute, true); |
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1380 |
176
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|
1381 SQLExecutor exec = new SQLExecutor() { |
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diff
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|
1382 public boolean doIt() throws SQLException { |
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diff
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|
1383 // fetch artifact id |
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|
1384 prepareStatement(SQL_GET_ID); |
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|
1385 stmnt.setString(1, artifactId); |
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|
1386 result = stmnt.executeQuery(); |
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diff
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|
1387 if (!result.next()) { |
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|
1388 logger.debug("No such artifact: " + artifactId); |
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|
1389 return false; |
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|
1390 } |
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|
1391 int aid = result.getInt(1); |
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diff
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|
1392 reset(); |
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diff
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|
1393 |
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diff
changeset
|
1394 // fetch collection id |
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diff
changeset
|
1395 prepareStatement(SQL_COLLECTIONS_ID_BY_GID); |
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|
1396 stmnt.setString(1, collectionId); |
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|
1397 result = stmnt.executeQuery(); |
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diff
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|
1398 if (!result.next()) { |
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diff
changeset
|
1399 logger.debug("No such collection: " + collectionId); |
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|
1400 } |
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|
1401 int cid = result.getInt(1); |
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diff
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|
1402 reset(); |
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|
1403 |
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|
1404 // check if artifact is already in collection |
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diff
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|
1405 prepareStatement(SQL_COLLECTION_CHECK_ARTIFACT); |
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|
1406 stmnt.setInt(1, aid); |
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|
1407 stmnt.setInt(2, cid); |
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|
1408 result = stmnt.executeQuery(); |
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|
1409 if (result.next()) { |
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|
1410 logger.debug("artifact already in collection"); |
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diff
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|
1411 return false; |
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|
1412 } |
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|
1413 reset(); |
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|
1414 |
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|
1415 // fetch fresh id for new collection item |
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diff
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|
1416 prepareStatement(SQL_COLLECTION_ITEMS_ID_NEXTVAL); |
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|
1417 result = stmnt.executeQuery(); |
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|
1418 if (!result.next()) { |
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|
1419 logger.debug("no collection item id generated"); |
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|
1420 return false; |
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1421 } |
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1422 int ci_id = result.getInt(1); |
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|
1423 reset(); |
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|
1424 |
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|
1425 // insert new collection item |
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|
1426 prepareStatement(SQL_COLLECTION_ITEMS_INSERT); |
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|
1427 stmnt.setInt(1, ci_id); |
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|
1428 stmnt.setInt(2, cid); |
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|
1429 stmnt.setInt(3, aid); |
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1430 |
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|
1431 if (data == null) { |
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|
1432 stmnt.setNull(4, Types.BINARY); |
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1433 } |
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1434 else { |
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|
1435 stmnt.setBytes(4, data); |
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1436 } |
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|
1437 stmnt.execute(); |
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|
1438 conn.commit(); |
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|
1439 |
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|
1440 return true; |
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1441 } |
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1442 }; |
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|
1443 return exec.runWrite(); |
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1444 } |
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1445 |
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1446 public boolean removeCollectionArtifact( |
180
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1447 final String collectionId, |
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1448 final String artifactId |
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1449 ) { |
180
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1450 if (!isValidIdentifier(collectionId)) { |
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1451 logger.debug("Invalid collection id: '" + collectionId + "'"); |
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1452 return false; |
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1453 } |
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1454 return new SQLExecutor() { |
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1455 public boolean doIt() throws SQLException { |
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1456 |
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1457 // fetch id, collection id and artitfact id |
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1458 prepareStatement(SQL_COLLECTION_ITEM_ID_CID_AID); |
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1459 stmnt.setString(1, collectionId); |
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1460 stmnt.setString(2, artifactId); |
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1461 result = stmnt.executeQuery(); |
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1462 if (!result.next()) { |
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1463 logger.debug("No such collection item"); |
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1464 return false; |
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1465 } |
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1466 int id = result.getInt(1); |
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1467 int cid = result.getInt(2); |
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1468 int aid = result.getInt(3); |
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1469 reset(); |
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1470 |
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1471 // outdate artifact iff it is only in this collection |
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1472 prepareStatement(SQL_COLLECTION_ITEM_OUTDATE_ARTIFACT); |
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1473 stmnt.setInt(1, aid); |
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1474 stmnt.setInt(2, cid); |
194
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1475 stmnt.setInt(3, aid); |
180
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1476 stmnt.execute(); |
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1477 reset(); |
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1478 |
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1479 // delete collection item |
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1480 prepareStatement(SQL_COLLECTION_ITEM_DELETE); |
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1481 stmnt.setInt(1, id); |
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1482 stmnt.execute(); |
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1483 reset(); |
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1484 |
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1485 // touch collection |
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1486 prepareStatement(SQL_COLLECTIONS_TOUCH_BY_ID); |
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1487 stmnt.setInt(1, cid); |
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1488 stmnt.execute(); |
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1489 |
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1490 conn.commit(); |
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1491 return true; |
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1492 } |
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1493 }.runWrite(); |
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1494 } |
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1495 |
184
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1496 public CollectionItem [] listCollectionArtifacts( |
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1497 final String collectionId |
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1498 ) { |
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1499 if (!isValidIdentifier(collectionId)) { |
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1500 logger.debug("Invalid collection id: '" + collectionId + "'"); |
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1501 return null; |
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1502 } |
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1503 |
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1504 final ArrayList<CollectionItem> collectionItems = |
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1505 new ArrayList<CollectionItem>(); |
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1506 |
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1507 SQLExecutor exec = new SQLExecutor() { |
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1508 public boolean doIt() throws SQLException { |
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1509 prepareStatement(SQL_COLLECTION_ITEMS_LIST_GID); |
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1510 stmnt.setString(1, collectionId); |
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1511 result = stmnt.executeQuery(); |
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1512 while (result.next()) { |
186
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|
1513 CollectionItem item = new DefaultCollectionItem( |
184
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1514 result.getString(1), |
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1515 result.getBytes(2)); |
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1516 collectionItems.add(item); |
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1517 } |
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1518 return true; |
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1519 } |
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1520 }; |
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1521 |
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1522 return exec.runRead() |
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1523 ? collectionItems.toArray( |
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1524 new CollectionItem[collectionItems.size()]) |
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1525 : null; |
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1526 } |
273
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1527 |
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1528 |
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|
1529 public boolean setCollectionTTL(final String uuid, final Long ttl) { |
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1530 if (!isValidIdentifier(uuid)) { |
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|
1531 logger.debug("Invalid collection id: '" + uuid + "'"); |
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1532 return false; |
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1533 } |
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1534 |
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|
1535 return new SQLExecutor() { |
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|
1536 public boolean doIt() throws SQLException { |
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|
1537 prepareStatement(SQL_UPDATE_COLLECTION_TTL); |
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1538 if (ttl == null) { |
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|
1539 stmnt.setNull(1, Types.BIGINT); |
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1540 } |
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1541 else { |
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|
1542 stmnt.setLong(1, ttl); |
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1543 } |
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1544 stmnt.setString(2, uuid); |
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1545 stmnt.execute(); |
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1546 conn.commit(); |
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1547 |
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1548 return true; |
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1549 } |
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1550 }.runWrite(); |
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1551 } |
275
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|
1552 |
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1553 |
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1554 public boolean setCollectionName(final String uuid, final String name) { |
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1555 if (!isValidIdentifier(uuid)) { |
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1556 logger.debug("Invalid collection id: '" + uuid + "'"); |
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1557 return false; |
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1558 } |
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1559 |
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1560 return new SQLExecutor() { |
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1561 public boolean doIt() throws SQLException { |
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1562 prepareStatement(SQL_UPDATE_COLLECTION_NAME); |
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1563 stmnt.setString(1, name); |
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1564 stmnt.setString(2, uuid); |
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1565 stmnt.execute(); |
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1566 conn.commit(); |
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1567 |
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1568 return true; |
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1569 } |
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1570 }.runWrite(); |
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1571 } |
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Added not yet working backend to artifact database.
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1572 } |
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Implementation to export artifacts as xml (applied patch from issue208 by SLT).
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1573 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |