Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/collections/OutputParser.java @ 686:3dc61e00385e facets-slt
Merged with trunk and introduced hashing of computed values.
flys-artifacts/branches/facets-slt@2126 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Wed, 15 Jun 2011 15:28:54 +0000 |
parents | 6167ae622ce0 |
children | 68c6c75a6f7c |
rev | line source |
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1 package de.intevation.flys.collections; |
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2 |
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3 import java.util.HashMap; |
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4 import java.util.Map; |
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5 |
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6 import javax.xml.xpath.XPathConstants; |
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7 |
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8 import org.apache.log4j.Logger; |
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9 |
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10 import org.w3c.dom.Document; |
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11 import org.w3c.dom.Node; |
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12 import org.w3c.dom.NodeList; |
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13 |
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14 import de.intevation.artifacts.ArtifactDatabase; |
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15 import de.intevation.artifacts.ArtifactDatabaseException; |
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16 import de.intevation.artifacts.ArtifactNamespaceContext; |
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17 import de.intevation.artifacts.CallMeta; |
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18 |
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19 import de.intevation.artifactdatabase.state.DefaultOutput; |
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20 import de.intevation.artifactdatabase.state.Output; |
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21 |
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22 import de.intevation.artifacts.common.utils.XMLUtils; |
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23 |
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24 import de.intevation.flys.artifacts.model.ManagedFacet; |
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25 |
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26 |
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27 public class OutputParser { |
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28 |
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29 /** Constant XPath that points to the outputmodes of an artifact.*/ |
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30 public static final String XPATH_ARTIFACT_OUTPUTMODES = |
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31 "/art:result/art:outputmodes/art:output"; |
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32 |
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33 |
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34 private static Logger logger = Logger.getLogger(OutputParser.class); |
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35 |
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36 protected ArtifactDatabase db; |
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37 protected CallMeta meta; |
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38 |
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39 protected Map<String, Output> outs; |
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40 |
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41 |
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42 public OutputParser(ArtifactDatabase db, CallMeta meta) { |
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43 this.db = db; |
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44 this.meta = meta; |
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45 this.outs = new HashMap<String, Output>(); |
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46 } |
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47 |
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48 |
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49 public void parse(String uuid) |
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50 throws ArtifactDatabaseException |
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51 { |
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52 logger.debug("OutputParser.parse: " + uuid); |
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53 |
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54 // XXX I am not sure if it works well every time with an empty |
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55 // document in the describe operation of an artifact. |
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56 Document description = db.describe(uuid, null, meta); |
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57 |
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58 NodeList outs = (NodeList) XMLUtils.xpath( |
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59 description, |
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60 XPATH_ARTIFACT_OUTPUTMODES, |
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61 XPathConstants.NODESET, |
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62 ArtifactNamespaceContext.INSTANCE); |
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63 |
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64 int num = outs != null ? outs.getLength() : 0; |
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65 |
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66 logger.debug("Artifact has " + num + " outputs."); |
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67 |
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68 for (int i = 0; i < num; i++) { |
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69 Node out = outs.item(i); |
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70 |
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71 parseOutput(uuid, out); |
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72 } |
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73 } |
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74 |
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75 |
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76 public Map<String, Output> getOuts() { |
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77 return outs; |
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78 } |
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79 |
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80 |
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81 protected void addItem(String out, ManagedFacet item) { |
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82 Output o = outs.get(out); |
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83 |
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84 if (o != null) { |
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85 int num = o.getFacets().size(); |
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86 item.setPosition(num+1); |
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87 |
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88 o.addFacet(item); |
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89 } |
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90 } |
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91 |
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92 |
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93 protected void parseOutput(String uuid, Node out) { |
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94 String name = XMLUtils.xpathString( |
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95 out, "@art:name", ArtifactNamespaceContext.INSTANCE); |
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96 |
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97 if (outs.get(name) == null) { |
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98 logger.debug("Create new output: " + name); |
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99 newOutput(out, name); |
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100 } |
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101 |
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102 parseItems(uuid, out, name); |
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103 } |
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104 |
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105 |
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106 protected void newOutput(Node out, String name) { |
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107 String desc = XMLUtils.xpathString( |
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108 out, "@art:description", ArtifactNamespaceContext.INSTANCE); |
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109 |
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110 String mimetype = XMLUtils.xpathString( |
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111 out, "@art:mime-type", ArtifactNamespaceContext.INSTANCE); |
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112 |
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113 Output o = new DefaultOutput(name, desc, mimetype); |
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114 |
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115 outs.put(name, o); |
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116 } |
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117 |
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118 |
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119 protected void parseItems(String uuid, Node out, String outname) { |
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120 NodeList facets = (NodeList) XMLUtils.xpath( |
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121 out, "art:facets/art:facet", |
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122 XPathConstants.NODESET, |
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123 ArtifactNamespaceContext.INSTANCE); |
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124 |
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125 int num = facets != null ? facets.getLength() : 0; |
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126 |
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127 logger.debug("Output has " + num + " facets."); |
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128 |
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129 for (int i = 0; i < num; i++) { |
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130 Node facet = facets.item(i); |
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131 |
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132 String name = XMLUtils.xpathString( |
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133 facet, "@art:name", ArtifactNamespaceContext.INSTANCE); |
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134 |
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135 ManagedFacet item = new ManagedFacet(name, null, uuid, 1, 1); |
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136 |
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137 addItem(outname, item); |
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138 } |
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139 } |
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140 } |
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141 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |