Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/CrossSectionWaterLineFacet.java @ 9499:853f2dafc16e

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VegetationZones in CrossSectionsDiagram
author gernotbelger
date Thu, 27 Sep 2018 18:06:26 +0200
parents bd5f5d2220fa
children
rev   line source
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4897a58c8746 River artifacts: Added new copyright headers.
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.artifacts.model;
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10
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11 import java.io.Serializable;
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12 import java.util.List;
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13
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14 import org.apache.log4j.Logger;
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15 import org.dive4elements.artifactdatabase.state.Facet;
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16 import org.dive4elements.artifacts.Artifact;
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17 import org.dive4elements.artifacts.CallContext;
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18 import org.dive4elements.artifacts.DataProvider;
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19 import org.dive4elements.river.artifacts.WaterLineArtifact;
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20 import org.dive4elements.river.artifacts.geom.Lines;
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21 import org.dive4elements.river.artifacts.geom.Lines.LineData;
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22 import org.dive4elements.river.artifacts.states.DefaultState.ComputeType;
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23 import org.dive4elements.river.model.FastCrossSectionLine;
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24
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25 /**
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26 * Facet for Waterlines in Cross Sections.
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27 */
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28 public class CrossSectionWaterLineFacet extends DataFacet implements FacetTypes {
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29
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30 private static final LineData NO_LINE_DATA = new Lines.LineData(new double[][] {}, 0d, 0d);
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31
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32 private static final long serialVersionUID = 1L;
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33
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34 /** Private log to use. */
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35 private static Logger log = Logger.getLogger(CrossSectionWaterLineFacet.class);
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36
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37 private final Serializable waterLineIndex;
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38
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39 public CrossSectionWaterLineFacet(final int facetIndex, final String description, final ComputeType type, final String hash, final String stateId,
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40 final Serializable waterLineIndex) {
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41 this(facetIndex, CROSS_SECTION_WATER_LINE, description, type, hash, stateId, waterLineIndex);
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42 }
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43
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44 /**
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45 * Trivial constructor, set (maybe localized) description.
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46 *
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47 * @param facetIndex
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48 * Index of this facet.
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49 * @param waterLineIndex
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50 * Determines which water-line the artifact will return. Depends on the implementation of the artifact.
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51 * Is serializable because this class is, must be immutable because only the reference is copied in
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52 * 'deepCopy'
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53 * @param name
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54 * 'type' of this facet.
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55 * @param description
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56 * (maybe) localized user-visible description.
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57 */
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58 public CrossSectionWaterLineFacet(final int facetIndex, final String name, final String description, final ComputeType type, final String hash,
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59 final String stateId, final Serializable waterLineIndex) {
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60 super(facetIndex, name, description, type, hash, stateId);
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61
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62 this.waterLineIndex = waterLineIndex;
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63 }
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64
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65 /**
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66 * Gets waterline (crossed with cross section) of waterlevel.
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67 * FIXME: the cross section facets delgate fetching the data to the artifact, which in turn (in most cases) re-calculate
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68 * the artifact on every call....
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69 * Instead this should work like other facets that rely on the hashed computation.
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70 */
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71 @Override
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72 public Object getData(final Artifact artifact, final CallContext context) {
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73 log.debug("Get data for cross section water line");
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74
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75 final List<DataProvider> providers = context.getDataProvider(CrossSectionFacet.BLACKBOARD_CS_MASTER_DATA);
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76 if (providers.size() < 1) {
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77 log.warn("Could not find Cross-Section data provider.");
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78 return NO_LINE_DATA;
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79 }
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80
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81 final DataProvider dataProvider = providers.get(0);
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82
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83 final FastCrossSectionLine crossSection = (FastCrossSectionLine) dataProvider.provideData(CrossSectionFacet.BLACKBOARD_CS_MASTER_DATA, null, context);
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84 if (crossSection == null)
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85 return NO_LINE_DATA;
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86
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87 Object nextKm = dataProvider.provideData(CrossSectionFacet.BLACKBOARD_CS_NEXT_KM, null, context);
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88 Object prevKm = dataProvider.provideData(CrossSectionFacet.BLACKBOARD_CS_PREV_KM, null, context);
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89 if (prevKm == null)
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90 prevKm = new Double(-1d);
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91 if (nextKm == null)
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92 nextKm = new Double(-1d);
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93
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94 if (!(artifact instanceof WaterLineArtifact)) {
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95 log.error("CrossSectionWaterLineFacet needs WaterLineArtifact");
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96 return NO_LINE_DATA;
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97 }
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98
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99 final WaterLineArtifact lineArtifact = (WaterLineArtifact) artifact;
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100
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101 final double currentKm = crossSection.getKm();
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102
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103 final double waterLevel = lineArtifact.getWaterLevel(this.type, this.hash, this.stateId, currentKm, this.waterLineIndex, (Double) nextKm,
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104 (Double) prevKm, context);
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105 if (Double.isNaN(waterLevel))
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106 return NO_LINE_DATA;
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107
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108 return Lines.createWaterLines(crossSection.getPoints(), waterLevel);
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109 }
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110
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111 /** Do a deep copy. */
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112 @Override
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113 public Facet deepCopy() {
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114 final CrossSectionWaterLineFacet copy = new CrossSectionWaterLineFacet(this.getIndex(), this.name, this.description, this.type, this.hash, this.stateId,
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115 this.waterLineIndex);
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116 copy.set(this);
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117 return copy;
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118 }
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119 }
http://dive4elements.wald.intevation.org