Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/ManualPointsArtifact.java @ 4478:6153c50f78cf

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WaterLineArtifact: Added callcontext-parameter to interfaces getWaterLine. Update all implementations. The change was done to be able to compute the extreme values during getWaterLine to access data needed in CrossSectionProfile Diagrams.
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Tue, 13 Nov 2012 14:46:44 +0100
parents 066e2b4d69ca
children a2735a4bf75e
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.awt.geom.Point2D;
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4 import java.util.ArrayList;
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5 import java.util.List;
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6
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7 import org.apache.log4j.Logger;
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8 import org.json.JSONArray;
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9 import org.json.JSONException;
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10 import org.w3c.dom.Document;
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11
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12 import de.intevation.artifactdatabase.state.Facet;
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13 import de.intevation.artifacts.Artifact;
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14 import de.intevation.artifacts.ArtifactFactory;
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15 import de.intevation.artifacts.CallContext;
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16 import de.intevation.artifacts.CallMeta;
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17 import de.intevation.flys.artifacts.geom.Lines;
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18 import de.intevation.flys.artifacts.model.FacetTypes;
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19 import de.intevation.flys.artifacts.states.DefaultState;
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20 import de.intevation.flys.model.FastCrossSectionLine;
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21
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22
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23 /**
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24 * Artifact to store user-added points and water lines.
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25 */
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26 public class ManualPointsArtifact
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27 extends StaticFLYSArtifact
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28 implements FacetTypes, WaterLineArtifact
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29 {
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30 private static final long serialVersionUID = 7096025125474986011L;
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31
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32 /** The logger for this class. */
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33 private static Logger logger = Logger.getLogger(ManualPointsArtifact.class);
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34
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35 /** The name of the artifact. */
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36 public static final String ARTIFACT_NAME = "manualpoints";
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37
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38
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39 public ManualPointsArtifact() {
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40 logger.debug("ManualPointsArtifact.ManualPointsArtifact()");
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41 }
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42
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43
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44 /**
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45 * Gets called from factory to set things up.
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46 */
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47 @Override
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48 public void setup(
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49 String identifier,
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50 ArtifactFactory factory,
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51 Object context,
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52 CallMeta callMeta,
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53 Document data)
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54 {
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55 logger.debug("ManualPointsArtifact.setup");
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56 super.setup(identifier, factory, context, callMeta, data);
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57 initialize(null, context, callMeta);
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58 }
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59
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60
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61 /** Return the name of this artifact. */
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62 @Override
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63 public String getName() {
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64 return ARTIFACT_NAME;
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65 }
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66
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67
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68 /** Access state data storing the jsonstring with points. */
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69 public String getPointsData(String facetName) {
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70 return getDataAsString(facetName + ".data");
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71 }
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72
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73
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74 /**
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75 * Access state data storing the jsonstring with lines.
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76 * @param facetName Name of facet or null if the so far
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77 * only known case should be picked.
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78 * @return (String) value of data element (expect json).
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79 */
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80 public String getLinesData(String facetName) {
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81 if (facetName == null)
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82 return getDataAsString("cross_section.manualpoints.lines");
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83 // TODO .lineS?
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84 return getDataAsString(facetName + ".line");
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85 }
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86
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87
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88 /** Setup state and facet. */
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89 @Override
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90 protected void initialize(Artifact artifact, Object context, CallMeta meta) {
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91 logger.debug("ManualPointsArtifact.initialize");
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92 List<Facet> fs = new ArrayList<Facet>();
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93
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94 DefaultState state = (DefaultState) getCurrentState(context);
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95 state.computeInit(this, hash(), context, meta, fs);
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96 if (!fs.isEmpty()) {
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97 logger.debug("Facets to add in ManualPointsArtifact.initialize .");
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98 facets.put(getCurrentStateId(), fs);
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99 }
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100 else {
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101 logger.debug("No facets to add in ManualPointsArtifact.initialize ("
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102 + state.getID() + ").");
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103 }
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104 }
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105
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106
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107 /**
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108 * Get value of line at index.
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109 * @param index index in json array defining lines.
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110 * @return water height of line at given index.
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111 */
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112 protected double getLine(int index) {
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113 try {
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114 JSONArray lines = new JSONArray(getLinesData(null));
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115 JSONArray array = lines.getJSONArray(index);
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116
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117 return array.getDouble(0);
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118 }
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119 catch(JSONException e){
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120 logger.error("Could not decode json for line.");
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121 return 0d;
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122 }
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123 }
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124
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125
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126 /**
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127 * Get the water line "surface".
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128 * @param index index of facets data.
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129 * @param csl 'ground' against which to determine water surface.
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130 * @param a (ignored in this implementation).
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131 * @param b (ignored in this implementation).
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132 * @param context (ignored in this implementation).
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133 */
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134 @Override
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135 public Lines.LineData getWaterLines(
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136 int index,
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137 FastCrossSectionLine csl,
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138 double a, double b,
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139 CallContext context
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140 ) {
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141 List<Point2D> points = csl.getPoints();
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142 return Lines.createWaterLines(points, getLine(index));
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143 }
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144 }
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145 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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