Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/ManualPointsArtifact.java @ 4352:823c8afa1335

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Refactor Converter to use common code
author Björn Ricks <bjoern.ricks@intevation.de>
date Thu, 01 Nov 2012 14:49:43 +0100
parents 066e2b4d69ca
children 6153c50f78cf
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.CallMeta;
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16 import de.intevation.flys.artifacts.geom.Lines;
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17 import de.intevation.flys.artifacts.model.FacetTypes;
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18 import de.intevation.flys.artifacts.states.DefaultState;
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19 import de.intevation.flys.model.FastCrossSectionLine;
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20
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21
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22 /**
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23 * Artifact to store user-added points and water lines.
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24 */
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25 public class ManualPointsArtifact
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26 extends StaticFLYSArtifact
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27 implements FacetTypes, WaterLineArtifact
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28 {
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29 private static final long serialVersionUID = 7096025125474986011L;
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30
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31 /** The logger for this class. */
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32 private static Logger logger = Logger.getLogger(ManualPointsArtifact.class);
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33
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34 /** The name of the artifact. */
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35 public static final String ARTIFACT_NAME = "manualpoints";
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36
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37
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38 public ManualPointsArtifact() {
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39 logger.debug("ManualPointsArtifact.ManualPointsArtifact()");
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40 }
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41
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42
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43 /**
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44 * Gets called from factory to set things up.
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45 */
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46 @Override
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47 public void setup(
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48 String identifier,
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49 ArtifactFactory factory,
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50 Object context,
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51 CallMeta callMeta,
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52 Document data)
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53 {
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54 logger.debug("ManualPointsArtifact.setup");
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55 super.setup(identifier, factory, context, callMeta, data);
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56 initialize(null, context, callMeta);
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57 }
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58
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59
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60 /** Return the name of this artifact. */
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61 @Override
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62 public String getName() {
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63 return ARTIFACT_NAME;
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64 }
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65
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66
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67 /** Access state data storing the jsonstring with points. */
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68 public String getPointsData(String facetName) {
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69 return getDataAsString(facetName + ".data");
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70 }
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71
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72
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73 /**
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74 * Access state data storing the jsonstring with lines.
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75 * @param facetName Name of facet or null if the so far
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76 * only known case should be picked.
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77 * @return (String) value of data element (expect json).
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78 */
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79 public String getLinesData(String facetName) {
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80 if (facetName == null)
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81 return getDataAsString("cross_section.manualpoints.lines");
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82 // TODO .lineS?
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83 return getDataAsString(facetName + ".line");
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84 }
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85
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86
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87 /** Setup state and facet. */
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88 @Override
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89 protected void initialize(Artifact artifact, Object context, CallMeta meta) {
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90 logger.debug("ManualPointsArtifact.initialize");
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91 List<Facet> fs = new ArrayList<Facet>();
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92
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93 DefaultState state = (DefaultState) getCurrentState(context);
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94 state.computeInit(this, hash(), context, meta, fs);
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95 if (!fs.isEmpty()) {
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96 logger.debug("Facets to add in ManualPointsArtifact.initialize .");
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97 facets.put(getCurrentStateId(), fs);
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98 }
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99 else {
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100 logger.debug("No facets to add in ManualPointsArtifact.initialize ("
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101 + state.getID() + ").");
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102 }
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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 * Get value of line at index.
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108 * @param index index in json array defining lines.
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109 * @return water height of line at given index.
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110 */
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111 protected double getLine(int index) {
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112 try {
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113 JSONArray lines = new JSONArray(getLinesData(null));
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114 JSONArray array = lines.getJSONArray(index);
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115
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116 return array.getDouble(0);
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117 }
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118 catch(JSONException e){
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119 logger.error("Could not decode json for line.");
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120 return 0d;
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121 }
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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 * Get the water line "surface".
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127 * @param index index of facets data.
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128 * @param csl 'ground' against which to determine water surface.
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129 * @param a (ignored in this implementation).
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130 * @param b (ignored in this implementation).
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131 */
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132 @Override
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133 public Lines.LineData getWaterLines(
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134 int index,
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135 FastCrossSectionLine csl,
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136 double a, double b
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137 ) {
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138 List<Point2D> points = csl.getPoints();
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139 return Lines.createWaterLines(points, getLine(index));
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140 }
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141 }
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142 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org