Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/CollectionMonitor.java @ 1745:4ae7df2a74ed

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Fix NPE in WDiff-diagram because no ranges present in masterartifact. flys-artifacts/trunk@3039 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Wed, 19 Oct 2011 16:06:01 +0000
parents 33ade8153d74
children 9eedda250280
rev   line source
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1 package de.intevation.flys.artifacts;
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2
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3 import java.util.HashMap;
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4 import java.util.List;
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5 import java.util.Map;
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6
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7 import javax.xml.xpath.XPathConstants;
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8
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9 import org.apache.log4j.Logger;
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10
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11 import org.w3c.dom.Document;
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12 import org.w3c.dom.Element;
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13 import org.w3c.dom.Node;
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14
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15 import de.intevation.artifacts.Artifact;
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16 import de.intevation.artifacts.ArtifactNamespaceContext;
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17 import de.intevation.artifacts.CallContext;
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18 import de.intevation.artifacts.Hook;
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19
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20 import de.intevation.artifacts.common.utils.XMLUtils;
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21 import de.intevation.artifacts.common.utils.XMLUtils.ElementCreator;
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22
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23 import de.intevation.artifactdatabase.state.State;
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24 import de.intevation.artifactdatabase.state.Output;
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25
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26 import de.intevation.flys.artifacts.datacage.Recommendations;
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29 public class CollectionMonitor implements Hook {
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30
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31 public static final String XPATH_RESULT = "/art:result";
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32
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33
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34 private static final Logger logger =
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35 Logger.getLogger(CollectionMonitor.class);
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36
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37
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38 @Override
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39 public void setup(Node cfg) {
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40 }
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41
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42
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43 @Override
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44 public void execute(Artifact artifact, CallContext context, Document doc) {
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45 FLYSArtifact flys = (FLYSArtifact) artifact;
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46
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47 Element result = (Element) XMLUtils.xpath(
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48 doc,
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49 XPATH_RESULT,
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50 XPathConstants.NODE,
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51 ArtifactNamespaceContext.INSTANCE);
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52
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53 ElementCreator creator = new ElementCreator(
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54 doc,
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55 ArtifactNamespaceContext.NAMESPACE_URI,
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56 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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57
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58 Element recommended = creator.create("recommended-artifacts");
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59 result.appendChild(recommended);
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60
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61 String[] outs = extractOutputNames(flys, context);
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62 Map<String, Object> params = getNoneUserSpecificParameters(flys, context);
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63
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64 Recommendations rec = Recommendations.getInstance();
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65 rec.recommend(flys, null, outs, params, recommended);
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66 }
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67
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68
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69 public static String[] extractOutputNames(
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70 FLYSArtifact flys,
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71 CallContext context)
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72 {
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73 State state = flys.getCurrentState(context);
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74 List<Output> outs = state.getOutputs();
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75
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76 int num = outs == null ? 0 : outs.size();
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77
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78 String[] names = new String[num];
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79
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80 for (int i = 0; i < num; i++) {
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81 names[i] = outs.get(i).getName();
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82 }
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83
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84 return names;
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85 }
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86
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87
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88 protected Map<String, Object> getNoneUserSpecificParameters(
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89 FLYSArtifact flys,
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90 CallContext context)
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91 {
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92 Map<String, Object> params = new HashMap<String, Object>(1);
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93 params.put("recommended", "true");
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94
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95 return params;
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96 }
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97 }
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98 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org