Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/collections/OutputParser.java @ 694:68c6c75a6f7c facets-slt

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Add index and description of facets to collections describe document. flys-artifacts/branches/facets-slt@2136 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Thu, 16 Jun 2011 14:10:49 +0000
parents 6167ae622ce0
children 853dceead0f4
rev   line source
346
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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.Element;
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12 import org.w3c.dom.Node;
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13 import org.w3c.dom.NodeList;
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14
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15 import de.intevation.artifacts.ArtifactDatabase;
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16 import de.intevation.artifacts.ArtifactDatabaseException;
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17 import de.intevation.artifacts.ArtifactNamespaceContext;
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18 import de.intevation.artifacts.CallMeta;
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19
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20 import de.intevation.artifactdatabase.state.DefaultOutput;
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21 import de.intevation.artifactdatabase.state.Output;
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22
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23 import de.intevation.artifacts.common.utils.XMLUtils;
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24
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25 import de.intevation.flys.artifacts.model.ManagedFacet;
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27
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28 public class OutputParser {
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29
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30 /** Constant XPath that points to the outputmodes of an artifact.*/
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31 public static final String XPATH_ARTIFACT_OUTPUTMODES =
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32 "/art:result/art:outputmodes/art:output";
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33
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34
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35 private static Logger logger = Logger.getLogger(OutputParser.class);
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36
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37 protected ArtifactDatabase db;
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38 protected CallMeta meta;
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39
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40 protected Map<String, Output> outs;
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43 public OutputParser(ArtifactDatabase db, CallMeta meta) {
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44 this.db = db;
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45 this.meta = meta;
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46 this.outs = new HashMap<String, Output>();
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47 }
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49
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50 public void parse(String uuid)
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51 throws ArtifactDatabaseException
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52 {
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53 logger.debug("OutputParser.parse: " + uuid);
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54
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55 // XXX I am not sure if it works well every time with an empty
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56 // document in the describe operation of an artifact.
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57 Document description = db.describe(uuid, null, meta);
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58
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59 NodeList outs = (NodeList) XMLUtils.xpath(
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60 description,
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61 XPATH_ARTIFACT_OUTPUTMODES,
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62 XPathConstants.NODESET,
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63 ArtifactNamespaceContext.INSTANCE);
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64
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65 int num = outs != null ? outs.getLength() : 0;
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66
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67 logger.debug("Artifact has " + num + " outputs.");
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68
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69 for (int i = 0; i < num; i++) {
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70 Node out = outs.item(i);
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71
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72 parseOutput(uuid, out);
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73 }
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74 }
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77 public Map<String, Output> getOuts() {
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78 return outs;
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79 }
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81
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82 protected void addItem(String out, ManagedFacet item) {
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83 Output o = outs.get(out);
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84
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85 if (o != null) {
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86 int num = o.getFacets().size();
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87 item.setPosition(num+1);
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88
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89 o.addFacet(item);
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90 }
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91 }
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93
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94 protected void parseOutput(String uuid, Node out) {
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95 String name = XMLUtils.xpathString(
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96 out, "@art:name", ArtifactNamespaceContext.INSTANCE);
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97
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98 if (outs.get(name) == null) {
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99 logger.debug("Create new output: " + name);
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100 newOutput(out, name);
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101 }
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102
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103 parseItems(uuid, out, name);
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104 }
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106
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107 protected void newOutput(Node out, String name) {
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108 String desc = XMLUtils.xpathString(
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109 out, "@art:description", ArtifactNamespaceContext.INSTANCE);
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110
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111 String mimetype = XMLUtils.xpathString(
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112 out, "@art:mime-type", ArtifactNamespaceContext.INSTANCE);
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113
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114 Output o = new DefaultOutput(name, desc, mimetype);
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115
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116 outs.put(name, o);
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117 }
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118
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119
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120 protected void parseItems(String uuid, Node out, String outname) {
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121 NodeList facets = (NodeList) XMLUtils.xpath(
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122 out, "art:facets/art:facet",
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123 XPathConstants.NODESET,
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124 ArtifactNamespaceContext.INSTANCE);
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125
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126 int num = facets != null ? facets.getLength() : 0;
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127
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128 String uri = ArtifactNamespaceContext.NAMESPACE_URI;
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129
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130 logger.debug("Output has " + num + " facets.");
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131
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132 for (int i = 0; i < num; i++) {
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133 Element facet = (Element) facets.item(i);
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134
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135 String name = facet.getAttributeNS(uri, "name");
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136 String desc = facet.getAttributeNS(uri, "description");
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137 String index = facet.getAttributeNS(uri, "index");
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138
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139 ManagedFacet item = new ManagedFacet(
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140 name, Integer.parseInt(index), desc, uuid, 1, 1);
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141
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142 addItem(outname, item);
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143 }
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144 }
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145 }
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146 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org