Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/GaugeDischargeCurveArtifact.java @ 3936:4e1b3b4ef132

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Add new Artifacts and State for displaying discharge curves at a gauge flys-artifacts/trunk@5636 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Bjoern Ricks <bjoern.ricks@intevation.de>
date Fri, 28 Sep 2012 08:44:49 +0000
parents
children a4930c43b806
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.StaticFLYSArtifact;
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21 import de.intevation.flys.artifacts.model.GaugeDischargeCurveFacet;
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22
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23 import de.intevation.flys.model.Gauge;
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24
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25 import de.intevation.flys.utils.FLYSUtils;
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26
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27 /**
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28 * Artifact to calculate a discharge curve from a gauge overview info
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29 *
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30 * @author <a href="mailto:bjoern.ricks@intevation.de">Björn Ricks</a>
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31 */
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32 public class GaugeDischargeCurveArtifact
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33 extends AbstractStaticStateArtifact
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34 {
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35
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36 private static final Logger logger =
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37 Logger.getLogger(GaugeDischargeCurveArtifact.class);
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38
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39 public static final String XPATH_RIVER = "/art:action/art:river/@name";
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40 public static final String XPATH_GAUGE = "/art:action/art:gauge/@reference";
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41 public static final String NAME = "gaugedischargecurve";
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42 public static final String STATIC_STATE_NAME = "state.gaugedischargecurve.static";
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43
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44 /**
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45 * Setup initializes the data by extracting the river and gauge from
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46 * the XML Document.
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47 */
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48 @Override
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49 public void setup(
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50 String identifier,
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51 ArtifactFactory factory,
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52 Object context,
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53 CallMeta callmeta,
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54 Document data)
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55 {
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56 logger.debug("GaugeDischargeCurveArtifact.setup");
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57
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58 if (logger.isDebugEnabled()) {
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59 logger.debug("GaugeDischargeCurveState.setup" + XMLUtils.toString(data));
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60 }
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61 String gaugeref = XMLUtils.xpathString(data, XPATH_GAUGE,
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62 ArtifactNamespaceContext.INSTANCE);
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63 String rivername = XMLUtils.xpathString(data, XPATH_RIVER,
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64 ArtifactNamespaceContext.INSTANCE);
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65
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66 addStringData("river", rivername);
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67 addStringData("reference_gauge", gaugeref);
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68
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69 Gauge gauge = FLYSUtils.getReferenceGauge(this);
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70
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71 Facet gfacet = new GaugeDischargeCurveFacet(rivername, gauge);
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72
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73 List<Facet> fs = new ArrayList<Facet>(1);
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74 fs.add(gfacet);
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75
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76 addFacets(STATIC_STATE_NAME, fs);
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77
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78 super.setup(identifier, factory, context, callmeta, data);
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79 }
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80
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81 @Override
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82 public String getName() {
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83 return NAME;
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84 }
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85
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86 @Override
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87 protected void initStaticState() {
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88 StaticState state = new StaticState(STATIC_STATE_NAME);
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89 List<Facet> fs = facets.get(STATIC_STATE_NAME);
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90 DefaultOutput output = new DefaultOutput(
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91 "discharge_curve",
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92 "output.discharge_curve", "image/png",
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93 fs,
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94 "chart");
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95
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96 state.addOutput(output);
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97 setStaticState(state);
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98 }
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99 }
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