Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/GaugeDischargeCurveArtifact.java @ 4028:b993d328f8b0

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author Björn Ricks <bjoern.ricks@intevation.de>
date Thu, 04 Oct 2012 14:07:33 +0200
parents 21cac9482958
children a5e1ca620f15
rev   line source
3936
4e1b3b4ef132 Add new Artifacts and State for displaying discharge curves at a gauge
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1 package de.intevation.flys.artifacts;
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2
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3 import java.util.ArrayList;
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4 import java.util.List;
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5
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6 import org.apache.log4j.Logger;
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7
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8 import org.w3c.dom.Document;
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9
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10 import de.intevation.artifactdatabase.state.DefaultOutput;
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11 import de.intevation.artifactdatabase.state.Facet;
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12
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13 import de.intevation.artifacts.ArtifactFactory;
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14 import de.intevation.artifacts.CallMeta;
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15
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16 import de.intevation.artifacts.common.ArtifactNamespaceContext;
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17 import de.intevation.artifacts.common.utils.XMLUtils;
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18
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19 import de.intevation.flys.artifacts.states.StaticState;
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20 import de.intevation.flys.artifacts.model.GaugeDischargeCurveFacet;
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21
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22
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23 /**
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24 * Artifact to calculate a discharge curve from a gauge overview info
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25 *
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26 * @author <a href="mailto:bjoern.ricks@intevation.de">Björn Ricks</a>
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27 */
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28 public class GaugeDischargeCurveArtifact
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29 extends AbstractStaticStateArtifact
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30 {
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31
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32 private static final Logger logger =
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33 Logger.getLogger(GaugeDischargeCurveArtifact.class);
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34
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35 public static final String XPATH_RIVER = "/art:action/art:river/@art:name";
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36 public static final String XPATH_GAUGE = "/art:action/art:gauge/@art:reference";
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37 public static final String NAME = "gaugedischargecurve";
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38 public static final String STATIC_STATE_NAME = "state.gaugedischargecurve.static";
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39
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40 /**
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41 * Setup initializes the data by extracting the river and gauge from
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42 * the XML Document.
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43 */
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44 @Override
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45 public void setup(
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46 String identifier,
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47 ArtifactFactory factory,
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48 Object context,
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49 CallMeta callmeta,
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50 Document data)
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51 {
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52 logger.debug("GaugeDischargeCurveArtifact.setup");
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53
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54 if (logger.isDebugEnabled()) {
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55 logger.debug("GaugeDischargeCurveArtifact.setup" + XMLUtils.toString(data));
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56 }
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57 String gaugeref = XMLUtils.xpathString(data, XPATH_GAUGE,
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58 ArtifactNamespaceContext.INSTANCE);
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59 String rivername = XMLUtils.xpathString(data, XPATH_RIVER,
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60 ArtifactNamespaceContext.INSTANCE);
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61
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62 addStringData("river", rivername);
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63 addStringData("reference_gauge", gaugeref);
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64
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65 Facet gfacet = new GaugeDischargeCurveFacet();
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66
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67 List<Facet> fs = new ArrayList<Facet>(1);
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68 fs.add(gfacet);
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69
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70 addFacets(STATIC_STATE_NAME, fs);
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71
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72 super.setup(identifier, factory, context, callmeta, data);
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73 }
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74
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75 @Override
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76 public String getName() {
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77 return NAME;
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78 }
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79
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80 @Override
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81 protected void initStaticState() {
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82 StaticState state = new StaticState(STATIC_STATE_NAME);
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83 List<Facet> fs = facets.get(STATIC_STATE_NAME);
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84 DefaultOutput output = new DefaultOutput(
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85 "discharge_curve",
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86 "output.discharge_curve", "image/png",
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87 fs,
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88 "chart");
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89
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90 state.addOutput(output);
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91 setStaticState(state);
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92 }
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93 }
http://dive4elements.wald.intevation.org