Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/ManualPointsArtifact.java @ 4844:787733641877
Added tag 2.9.8 for changeset 88014b9852d0
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Wed, 23 Jan 2013 18:15:04 +0100 |
parents | a2735a4bf75e |
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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 addFacets(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 : |