Mercurial > dive4elements > framework
annotate artifact-database/src/main/java/de/intevation/artifactdatabase/DefaultArtifactCollection.java @ 218:70cbbe144931
Added a describe() method for ArtifactCollections.
artifacts/trunk@1558 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Thu, 24 Mar 2011 15:48:26 +0000 |
parents | b2115f484edb |
children | f75f83af19e0 |
rev | line source |
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1 /* |
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2 * Copyright (c) 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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10 import java.io.IOException; |
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11 import java.io.OutputStream; |
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12 |
119
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13 import java.util.ArrayList; |
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14 import java.util.Date; |
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15 import java.util.HashMap; |
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16 import java.util.List; |
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17 import java.util.Map; |
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18 |
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19 import org.apache.log4j.Logger; |
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20 |
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21 import org.w3c.dom.Document; |
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22 |
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23 import de.intevation.artifacts.Artifact; |
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24 import de.intevation.artifacts.ArtifactCollection; |
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25 import de.intevation.artifacts.ArtifactCollectionFactory; |
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26 import de.intevation.artifacts.CallContext; |
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27 import de.intevation.artifacts.User; |
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28 |
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29 import de.intevation.artifacts.common.utils.XMLUtils; |
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30 |
119
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31 |
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32 /** |
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33 * Trivial implementation of an artifact collection. Useful to be subclassed. |
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34 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> |
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35 */ |
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36 public class DefaultArtifactCollection |
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37 implements ArtifactCollection |
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38 { |
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39 /** The logger used in this class.*/ |
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40 private static Logger logger = |
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41 Logger.getLogger(DefaultArtifactCollection.class); |
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42 |
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43 /** |
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44 * The identifier of the collection. |
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45 */ |
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46 protected String identifier; |
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47 |
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48 /** |
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49 * The identifier of the collection. |
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50 */ |
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51 protected String name; |
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52 |
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53 /** |
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54 * The owner of this collection. |
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55 */ |
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56 protected User user; |
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57 |
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58 /** |
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59 * The artifacts stored in this collection. |
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60 */ |
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61 protected List<Artifact> artifacts; |
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62 |
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63 /** |
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64 * The attributes used for the artifacts stored in this collection. The key |
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65 * of this map represents the identifier of the artifact which the attribute |
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66 * belong to. |
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67 */ |
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68 protected Map<String, Document> attributes; |
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69 |
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70 /** The creation time of this collection.*/ |
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71 protected Date creationTime; |
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72 |
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73 |
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74 /** |
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75 * Default constructor. |
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76 */ |
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77 public DefaultArtifactCollection() { |
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78 } |
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79 |
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80 |
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81 /** |
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82 * When created by a factory this method is called to |
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83 * initialize the collection. |
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84 * @param identifier The identifier from collection database |
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85 * @param factory The factory which created this collection. |
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86 * @param context The global context of the runtime system. |
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87 * @param data The data which can be use to setup a collection with |
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88 * more details. |
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89 */ |
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90 public void setup( |
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91 String identifier, |
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92 String name, |
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93 Date creationTime, |
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94 ArtifactCollectionFactory factory, |
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95 Object context, |
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96 Document data) |
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97 { |
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98 logger.debug("DefaultArtifactCollection.setup: " + identifier); |
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99 |
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100 artifacts = new ArrayList<Artifact>(); |
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101 attributes = new HashMap<String, Document>(); |
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102 |
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103 setIdentifier(identifier); |
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104 setName(name); |
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105 setCreationTime(creationTime); |
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106 } |
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107 |
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108 |
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109 public Document describe(CallContext context) { |
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110 logger.debug("DefaultArtifactCollection.describe: " + identifier); |
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111 |
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112 return XMLUtils.newDocument(); |
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113 } |
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114 |
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115 |
119
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116 /** |
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117 * Set a new identifier for this collection. |
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118 * @param identifier New identifier for this collection. |
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119 */ |
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120 public void setIdentifier(String identifier) { |
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121 this.identifier = identifier; |
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122 } |
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123 |
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124 |
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125 /** |
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126 * Identify this collection. |
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127 * @return Returns unique string to identify this collection globally. |
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128 */ |
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129 public String identifier() { |
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130 return identifier; |
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131 } |
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132 |
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133 |
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134 /** |
159
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135 * Name of this collection. |
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136 * @return Returns the name of this collection |
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137 */ |
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138 public String getName() { |
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139 return name; |
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140 } |
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141 |
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142 /** |
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143 * Name of this collection. |
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144 * @return Returns the name of this collection |
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145 */ |
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146 public void setName(String name) { |
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147 this.name = name; |
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148 } |
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149 |
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150 |
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151 /** |
119
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152 * Set a new owner of this collection. |
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153 * @param user New owner for this collection. |
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154 */ |
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155 public void setUser(User user) { |
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156 this.user = user; |
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157 } |
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158 |
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159 |
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160 /** |
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161 * Identify the owner of the collection. |
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162 * @return Returns owner of the collection. |
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163 */ |
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164 public User getUser() { |
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165 return user; |
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166 } |
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167 |
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168 |
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169 /** |
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170 * Returns the creation time of the collection. |
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171 * |
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172 * @return the creation time of the collection. |
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173 */ |
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174 public Date getCreationTime() { |
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175 return creationTime; |
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176 } |
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177 |
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178 |
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179 /** |
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180 * Sets the creation time of the collection. |
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181 * |
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182 * @param creationTime The new creation time. |
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183 */ |
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184 public void setCreationTime(Date creationTime) { |
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185 this.creationTime = creationTime; |
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186 } |
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187 |
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188 |
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189 /** |
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190 * Called from artifact database when an artifact is |
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191 * going to be removed from system. |
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192 * @param context The global context of the runtime system. |
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193 */ |
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194 public void endOfLife(Object context) { |
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195 logger.debug("DefaultArtifactCollection.endOfLife"); |
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196 } |
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197 |
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198 |
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199 /** |
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200 * Internal hash of this collection. |
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201 * @return Returns hash that should stay the same if the internal |
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202 * value has not changed. Useful for caching |
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203 */ |
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204 public String hash() { |
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205 logger.debug("DefaultArtifactCollection.hash"); |
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206 |
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207 return String.valueOf(hashCode()); |
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208 } |
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209 |
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210 |
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211 /** |
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212 * Called from artifact database before an artifact is |
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213 * going to be exported as xml document. |
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214 * @param context The global context of the runtime system. |
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215 */ |
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216 public void cleanup(Object context) { |
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217 logger.debug("DefaultArtifactCollection.cleanup"); |
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218 } |
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219 |
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220 |
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221 /** |
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222 * Adds a new artifact to this collection. |
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223 * |
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224 * @param artifact The new artifact. |
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225 * @param attribute The attributes used for this artifact. |
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226 * @param context The CallContext. |
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227 */ |
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228 public void addArtifact( |
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229 Artifact artifact, |
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230 Document attribute, |
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231 CallContext context) |
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232 { |
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233 logger.debug("DefaultArtifactCollection.addArtifact"); |
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234 |
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235 artifacts.add(artifact); |
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236 attributes.put(artifact.identifier(), attribute); |
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237 } |
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238 |
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239 |
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240 /** |
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241 * Removes the given artifact from this collection. |
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242 * |
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243 * @param artifact The artifact that should be removed. |
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244 * @param context The CallContext. |
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245 */ |
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246 public void removeArtifact(Artifact artifact, CallContext context) { |
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247 logger.debug("DefaultArtifactCollection.removeArtifact"); |
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248 |
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249 if (artifact == null) { |
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250 return; |
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251 } |
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252 |
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253 artifacts.remove(artifact); |
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254 attributes.remove(artifact.identifier()); |
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255 } |
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256 |
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257 |
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258 /** |
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259 * Returns a list of artifacts that are stored in this collection. |
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260 * |
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261 * @param context The CallContext. |
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262 * |
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263 * @return the list of artifacts stored in this collection. |
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264 */ |
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265 public Artifact[] getArtifacts(CallContext context) { |
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266 logger.debug("DefaultArtifactCollection.getArtifacts"); |
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267 |
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268 return (Artifact[]) artifacts.toArray(); |
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269 } |
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270 |
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271 |
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272 /** |
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273 * Returns the attribute document for the given artifact. |
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274 * |
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275 * @param artifact The artifact. |
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276 * @param context The CallContext. |
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277 * |
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278 * @return a document that contains the attributes of the artifact. |
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279 */ |
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280 public Document getAttribute(Artifact artifact, CallContext context) { |
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281 logger.debug("DefaultArtifactCollection.getAttribute"); |
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282 |
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283 return attributes.get(artifact.identifier()); |
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284 } |
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285 |
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286 |
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287 /** |
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288 * Set the attribute for the given artifact. |
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289 * |
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290 * @param artifact The artifact of the attribute. |
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291 * @param document The new attribute of the artifact. |
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292 * @param context The CallContext. |
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293 */ |
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294 public void setAttribute( |
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295 Artifact artifact, |
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296 Document document, |
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297 CallContext context) |
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298 { |
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299 logger.debug("DefaultArtifactCollection.setAttribute"); |
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300 |
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301 attributes.put(artifact.identifier(), document); |
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302 } |
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303 |
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304 |
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305 /** |
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306 * Produce output for this collection. |
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307 * @param format Specifies the format of the output. |
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308 * @param out Stream to write the result data to. |
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309 * @param context The global context of the runtime system. |
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310 * @throws IOException Thrown if an I/O occurs. |
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311 */ |
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312 public void out(Document format, OutputStream out, CallContext context) |
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313 throws IOException |
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314 { |
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315 logger.debug("DefaultArtifactCollection.out"); |
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316 } |
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317 } |
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318 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |