Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/datacage/Recommendations.java @ 1043:9c0f981cd22d

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Datacage user template: Removed state filter because it was broken. Simplified by joining two contexts. flys-artifacts/trunk@2504 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Thu, 18 Aug 2011 14:13:35 +0000
parents c586b6220f35
children 0a5eff5511b1
rev   line source
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1 package de.intevation.flys.artifacts.datacage;
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2
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3 import java.util.Map;
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4 import java.util.HashMap;
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5 import java.util.List;
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6 import java.util.ArrayList;
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7
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8 import java.io.InputStream;
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9 import java.io.IOException;
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10 import java.io.File;
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11
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12 import java.io.FileInputStream;
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13
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14 import java.sql.Connection;
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15 import java.sql.SQLException;
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16
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17 import javax.sql.DataSource;
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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 import org.w3c.dom.Node;
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23
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24 import org.hibernate.Session;
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25
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26 import org.hibernate.jdbc.Work;
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27
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28 import de.intevation.artifacts.common.utils.Config;
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29 import de.intevation.artifacts.common.utils.XMLUtils;
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30
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31 import de.intevation.flys.artifacts.FLYSArtifact;
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32
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33 import de.intevation.flys.backend.SessionHolder;
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34
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35 import de.intevation.artifactdatabase.data.StateData;
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36
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37 import de.intevation.flys.artifacts.datacage.templating.Builder;
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38
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39 public class Recommendations
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40 {
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41 private static Logger log = Logger.getLogger(Recommendations.class);
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42
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43 private static final boolean DEVELOPMENT_MODE =
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44 Boolean.getBoolean("flys.datacage.recommendations.development");
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45
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46 public static final String XPATH_SYSTEM_TEMPLATE =
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47 "/artifact-database/metadata/system/@template";
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48
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49 public static final String XPATH_USER_TEMPLATE =
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50 "/artifact-database/metadata/user/@template";
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51
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52 private static Recommendations INSTANCE;
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53
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54 public static class BuilderProvider
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55 {
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56 protected Builder builder;
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57
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58 public BuilderProvider() {
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59 }
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60
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61 public BuilderProvider(Builder builder) {
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62 this.builder = builder;
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63 }
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64
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65 public Builder getBuilder() {
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66 return builder;
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67 }
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68 } // class BuilderProvider
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69
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70 public static class FileBuilderProvider
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71 extends BuilderProvider
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72 {
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73 protected File file;
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74 protected long lastModified;
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75
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76 public FileBuilderProvider() {
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77 }
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78
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79 public FileBuilderProvider(File file) {
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80 this.file = file;
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81 lastModified = Long.MIN_VALUE;
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82 }
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83
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84 @Override
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85 public synchronized Builder getBuilder() {
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86 long modified = file.lastModified();
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87 if (modified > lastModified) {
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88 lastModified = modified;
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89 try {
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90 Document template = loadTemplate(file);
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91 builder = new Builder(template);
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92 }
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93 catch (IOException ioe) {
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94 log.error(ioe);
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95 }
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96 }
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97 return builder;
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98 }
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99
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100 public BuilderProvider toStaticProvider() {
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101 return new BuilderProvider(builder);
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102 }
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103 } // class BuilderProvider
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104
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105 protected BuilderProvider systemBuilderProvider;
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106 protected BuilderProvider userBuilderProvider;
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107
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108 public Recommendations() {
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109 }
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110
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111 public Recommendations(
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112 BuilderProvider systemBuilderProvider,
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113 BuilderProvider userBuilderProvider) {
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114 this.systemBuilderProvider = systemBuilderProvider;
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115 this.userBuilderProvider = userBuilderProvider;
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116 }
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117
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118 public Builder getUserBuilder() {
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119 return userBuilderProvider.getBuilder();
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120 }
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121
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122 public Builder getSystemBuilder() {
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123 return systemBuilderProvider.getBuilder();
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124 }
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125
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126 protected static void artifactToParameters(
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127 FLYSArtifact artifact,
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128 Map<String, Object> parameters
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129 ) {
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130 parameters.put("current-state-id", artifact.getCurrentStateId());
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131 parameters.put("artifact-id", artifact.identifier());
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132
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133 for (StateData sd: artifact.getAllData()) {
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diff changeset
134 Object value = sd.getValue();
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parents:
diff changeset
135 if (value == null) {
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
136 continue;
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parents:
diff changeset
137 }
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diff changeset
138 String key = sd.getName().replace('.', '-');
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139 parameters.put(key, value);
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parents:
diff changeset
140 }
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parents:
diff changeset
141 }
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parents:
diff changeset
142
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143 public void recommend(
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diff changeset
144 FLYSArtifact artifact,
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145 String userId,
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
146 String [] outs,
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parents:
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147 Map<String, Object> extraParameters,
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parents:
diff changeset
148 Node result
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parents:
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149 ) {
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150 Map<String, Object> parameters = new HashMap<String, Object>();
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parents:
diff changeset
151
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diff changeset
152 if (extraParameters != null) {
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diff changeset
153 parameters.putAll(extraParameters);
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parents:
diff changeset
154 }
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parents:
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155
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diff changeset
156 if (userId != null) {
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diff changeset
157 parameters.put("user-id", userId);
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parents:
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158 }
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parents:
diff changeset
159
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parents:
diff changeset
160 if (artifact != null) {
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parents:
diff changeset
161 artifactToParameters(artifact, parameters);
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parents:
diff changeset
162 }
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parents:
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163
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164 parameters.put("artifact-outs", outs);
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165
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166 parameters.put("parameters", parameters);
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167
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168 recommend(parameters, userId, result);
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
169 }
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parents:
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170
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diff changeset
171 public void recommend(
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172 Map<String, Object> parameters,
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
173 String userId,
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
174 Node result
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parents:
diff changeset
175 ) {
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parents:
diff changeset
176 recommend(parameters, userId, result, SessionHolder.HOLDER.get());
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parents:
diff changeset
177 }
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parents:
diff changeset
178
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diff changeset
179 public void recommend(
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180 final Map<String, Object> parameters,
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
181 final String userId,
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parents:
diff changeset
182 final Node result,
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
183 Session session
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
184 ) {
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parents:
diff changeset
185 session.doWork(new Work() {
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parents:
diff changeset
186 @Override
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diff changeset
187 public void execute(Connection systemConnection)
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parents:
diff changeset
188 throws SQLException
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
189 {
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parents:
diff changeset
190 List<Builder.NamedConnection> connections =
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parents:
diff changeset
191 new ArrayList<Builder.NamedConnection>(2);
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diff changeset
192
1029
3f3988bb6284 Picky Cosmetics.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1022
diff changeset
193 if (userId != null) { // Use system and user templates.
3f3988bb6284 Picky Cosmetics.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1022
diff changeset
194 // Get connection to datacage db.
1015
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diff changeset
195 DataSource dataSource = DBConfig
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diff changeset
196 .getInstance()
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diff changeset
197 .getDBConnection()
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parents:
diff changeset
198 .getDataSource();
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parents:
diff changeset
199
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diff changeset
200 Connection userConnection = dataSource.getConnection();
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parents:
diff changeset
201 try {
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diff changeset
202 connections.add(new Builder.NamedConnection(
1022
930a9ce24294 Datacage: Fixed caching issue leading to incorrect results.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1018
diff changeset
203 Builder.CONNECTION_USER, userConnection, false));
1018
d42fa223be48 Datacage: added first user specific config for cross sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1015
diff changeset
204
d42fa223be48 Datacage: added first user specific config for cross sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1015
diff changeset
205 connections.add(new Builder.NamedConnection(
1022
930a9ce24294 Datacage: Fixed caching issue leading to incorrect results.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1018
diff changeset
206 Builder.CONNECTION_SYSTEM, systemConnection, true));
1015
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parents:
diff changeset
207
1030
c586b6220f35 Datacage: Added a development mode for recommendations
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1029
diff changeset
208 getUserBuilder().build(connections, result, parameters);
1015
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
209 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
210 finally {
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
211 userConnection.close();
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
212 }
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
213 }
1029
3f3988bb6284 Picky Cosmetics.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1022
diff changeset
214 else { // Use system template only.
1015
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
215 connections.add(new Builder.NamedConnection(
1022
930a9ce24294 Datacage: Fixed caching issue leading to incorrect results.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1018
diff changeset
216 Builder.CONNECTION_SYSTEM, systemConnection, true));
1015
9a1a3080ad98 Bring user specific meta data service to life.
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parents:
diff changeset
217
1030
c586b6220f35 Datacage: Added a development mode for recommendations
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1029
diff changeset
218 getSystemBuilder().build(connections, result, parameters);
1015
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parents:
diff changeset
219 }
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
220 }
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
221 });
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
222 }
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
223
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
224 public static synchronized Recommendations getInstance() {
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
225 if (INSTANCE == null) {
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
226 INSTANCE = createRecommendations();
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
227 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
228 return INSTANCE;
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
229 }
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
230
9a1a3080ad98 Bring user specific meta data service to life.
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parents:
diff changeset
231 protected static Document loadTemplate(File file) throws IOException {
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
232 InputStream in = null;
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
233
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
234 try {
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
235 in = new FileInputStream(file);
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
236
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
237 Document template = XMLUtils.parseDocument(in);
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
238
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
239 if (template == null) {
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
240 throw new IOException("cannot load template");
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
241 }
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
242 return template;
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
243 }
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
244 finally {
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
245 if (in != null) {
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
246 try {
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
247 in.close();
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
248 }
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
249 catch (IOException ioe) {
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
250 log.error(ioe);
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
251 }
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
252 }
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
253 }
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
254 }
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
255
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
256 public static Recommendations createRecommendations(
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
257 File systemFile,
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
258 File userFile
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
259 ) {
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
260 log.debug("Recommendations.createBuilder");
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
261
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
262 if (!systemFile.isFile() || !systemFile.canRead()) {
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
263 log.error("Cannot open template file '" + systemFile + "'");
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
264 return null;
9a1a3080ad98 Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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265 }
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266
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267 if (!userFile.isFile() || !userFile.canRead()) {
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268 log.error("Cannot open template file '" + userFile + "'");
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269 return null;
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270 }
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271
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272 FileBuilderProvider ufbp = new FileBuilderProvider(userFile);
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273 FileBuilderProvider sfbp = new FileBuilderProvider(systemFile);
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274
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275 if (ufbp.getBuilder() == null || sfbp.getBuilder() == null) {
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276 log.error("failed loading builder");
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277 return null;
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278 }
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279
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280 BuilderProvider ubp;
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281 BuilderProvider sbp;
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282
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283 if (DEVELOPMENT_MODE) {
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284 ubp = ufbp;
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285 sbp = sfbp;
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286 }
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287 else {
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288 ubp = ufbp.toStaticProvider();
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289 sbp = sfbp.toStaticProvider();
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290 }
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291
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292 return new Recommendations(sbp, ubp);
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293 }
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294
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295 protected static Recommendations createRecommendations() {
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296 log.debug("Recommendations.createRecommendations");
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297
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298 String systemPath = Config.getStringXPath(XPATH_SYSTEM_TEMPLATE);
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299 String userPath = Config.getStringXPath(XPATH_USER_TEMPLATE);
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300
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301 if (systemPath == null || userPath == null) {
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302 log.error("no path to template file given");
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303 return null;
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304 }
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305
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306 systemPath = Config.replaceConfigDir(systemPath);
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307 userPath = Config.replaceConfigDir(userPath);
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308
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309 return createRecommendations(
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310 new File(systemPath),
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311 new File(userPath));
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312 }
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313 }
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314 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org