Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/MetaDataService.java @ 1072:80aecb01d79a
Let MainValuesArtifact have a state, outputmode and facet.
flys-artifacts/trunk@2556 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Wed, 24 Aug 2011 12:07:33 +0000 |
parents | 3f3988bb6284 |
children | f84ddc205c8b |
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1 package de.intevation.flys.artifacts.services; |
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2 |
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3 import org.w3c.dom.Document; |
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4 |
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5 import org.apache.log4j.Logger; |
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6 |
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7 import java.util.Map; |
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8 import java.util.HashMap; |
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9 |
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10 import de.intevation.artifacts.Artifact; |
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11 import de.intevation.artifacts.CallMeta; |
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12 import de.intevation.artifacts.GlobalContext; |
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13 import de.intevation.artifacts.ArtifactDatabase; |
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14 import de.intevation.artifacts.ArtifactDatabaseException; |
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15 |
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16 import de.intevation.artifactdatabase.DefaultService; |
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17 |
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18 import de.intevation.artifacts.common.utils.XMLUtils; |
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19 import de.intevation.artifacts.common.utils.StringUtils; |
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20 |
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21 import de.intevation.artifacts.common.ArtifactNamespaceContext; |
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22 |
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23 import de.intevation.flys.artifacts.datacage.Recommendations; |
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24 |
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25 import de.intevation.flys.artifacts.FLYSArtifact; |
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26 |
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27 public class MetaDataService |
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28 extends DefaultService |
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29 { |
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30 private static Logger log = Logger.getLogger(MetaDataService.class); |
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31 |
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32 public static final String XPATH_ARTIFACT_ID = "/art:meta/art:artifact-id/@value"; |
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33 public static final String XPATH_USER_ID = "/art:meta/art:user-id/@value"; |
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34 public static final String XPATH_OUTS = "/art:meta/art:outs/@value"; |
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35 public static final String XPATH_PARAMETERS = "/art:meta/art:parameters/@value"; |
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36 |
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37 /** The global context key of the artifact database. */ |
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38 public static final String ARTIFACT_DATA_BASE_KEY = |
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39 "global.artifact.database"; |
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40 |
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41 public MetaDataService() { |
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42 } |
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43 |
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44 @Override |
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45 public Document process( |
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46 Document data, |
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47 GlobalContext globalContext, |
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48 CallMeta callMeta |
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49 ) { |
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50 log.debug("MetaDataService.process"); |
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51 |
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52 String artifactId = XMLUtils.xpathString( |
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53 data, XPATH_ARTIFACT_ID, ArtifactNamespaceContext.INSTANCE); |
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54 |
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55 if (artifactId != null |
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56 && (artifactId = artifactId.trim()).length() == 0) { |
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57 artifactId = null; |
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58 } |
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59 |
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60 String userId = XMLUtils.xpathString( |
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61 data, XPATH_USER_ID, ArtifactNamespaceContext.INSTANCE); |
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62 |
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63 if (userId != null |
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64 && (userId = userId.trim()).length() == 0) { |
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65 userId = null; |
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66 } |
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67 |
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68 String outs = XMLUtils.xpathString( |
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69 data, XPATH_OUTS, ArtifactNamespaceContext.INSTANCE); |
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70 |
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71 String parameters = XMLUtils.xpathString( |
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72 data, XPATH_PARAMETERS, ArtifactNamespaceContext.INSTANCE); |
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73 |
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74 return doService( |
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75 artifactId, userId, outs, parameters, globalContext); |
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76 } |
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77 |
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78 protected static Map<String, Object> splitParameters( |
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79 String parameters, |
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80 Map<String, Object> data |
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81 ) { |
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82 if (parameters != null) { |
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83 String [] parts = parameters.split("\\s*;\\s*"); |
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84 for (String part: parts) { |
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85 String [] kv = part.split("\\s*:\\s*"); |
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86 if (kv.length < 2 || (kv[0] = kv[0].trim()).length() == 0) { |
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87 continue; |
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88 } |
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89 String [] values = kv[1].split("\\s*,\\s*"); |
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90 data.put(kv[0], values.length == 1 ? values[0] : values); |
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91 } |
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92 } |
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93 return data; |
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94 } |
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95 |
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96 protected Document doService( |
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97 String artifactId, |
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98 String userId, |
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99 String outsString, |
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100 String parameters, |
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101 GlobalContext globalContext |
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102 ) { |
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103 Document result = XMLUtils.newDocument(); |
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104 |
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105 FLYSArtifact flysArtifact; |
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106 |
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107 if (log.isDebugEnabled()) { |
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108 log.debug("artifact : " + artifactId); |
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109 log.debug("user : " + userId); |
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110 log.debug("outs : " + outsString); |
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111 log.debug("parameters: " + parameters); |
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112 } |
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113 |
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114 if (userId != null && !StringUtils.checkUUID(userId)) { |
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115 log.warn("'" + userId + "' is not a UUID"); |
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116 return result; |
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117 } |
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118 |
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119 if (artifactId != null) { |
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120 if (!StringUtils.checkUUID(artifactId)) { |
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121 log.warn("'" + artifactId + "' is not a UUID"); |
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122 return result; |
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123 } |
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124 |
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125 Object dbObject = |
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126 (ArtifactDatabase)globalContext.get(ARTIFACT_DATA_BASE_KEY); |
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127 |
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128 if (!(dbObject instanceof ArtifactDatabase)) { |
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129 log.error("Cannot find artifact database"); |
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130 return result; |
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131 } |
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132 |
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133 ArtifactDatabase db = (ArtifactDatabase)dbObject; |
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134 |
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135 Artifact artifact; |
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136 |
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137 try { |
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138 artifact = db.getRawArtifact(artifactId); |
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139 } |
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140 catch (ArtifactDatabaseException adbe) { |
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141 log.warn("fetching artifact failed", adbe); |
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142 return result; |
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143 } |
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144 |
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145 if (!(artifact instanceof FLYSArtifact)) { |
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146 log.warn("artifact is not a FLYS artifact."); |
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147 return result; |
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148 } |
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149 |
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150 flysArtifact = (FLYSArtifact)artifact; |
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151 } |
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152 else { |
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153 flysArtifact = null; |
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154 } |
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155 |
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156 |
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157 Map<String, Object> data = splitParameters( |
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158 parameters, new HashMap<String, Object>()); |
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159 |
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160 String [] outs = outsString == null |
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161 ? new String [0] |
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162 : outsString.split("\\s*,\\s*"); |
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163 |
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164 Recommendations rec = Recommendations.getInstance(); |
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165 rec.recommend( |
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166 flysArtifact, userId, outs, data, result); |
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167 |
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168 return result; |
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169 } |
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170 } |
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171 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |