Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/artifacts/ManualPointsArtifact.java @ 8202:e4606eae8ea5
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author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Fri, 05 Sep 2014 12:58:17 +0200 |
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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; |
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10 |
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11 import java.awt.geom.Point2D; |
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12 import java.util.ArrayList; |
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13 import java.util.List; |
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14 |
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15 import org.apache.log4j.Logger; |
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16 import org.json.JSONArray; |
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17 import org.json.JSONException; |
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18 import org.w3c.dom.Document; |
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19 |
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20 import org.dive4elements.artifactdatabase.state.Facet; |
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21 import org.dive4elements.artifacts.Artifact; |
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22 import org.dive4elements.artifacts.ArtifactFactory; |
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23 import org.dive4elements.artifacts.CallContext; |
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24 import org.dive4elements.artifacts.CallMeta; |
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25 import org.dive4elements.river.artifacts.geom.Lines; |
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26 import org.dive4elements.river.artifacts.model.FacetTypes; |
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27 import org.dive4elements.river.artifacts.states.DefaultState; |
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28 import org.dive4elements.river.model.FastCrossSectionLine; |
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29 |
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30 |
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31 /** |
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32 * Artifact to store user-added points and water lines. |
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33 */ |
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34 public class ManualPointsArtifact |
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35 extends StaticD4EArtifact |
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36 implements FacetTypes, WaterLineArtifact |
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37 { |
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38 private static final long serialVersionUID = 7096025125474986011L; |
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39 |
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40 /** The log for this class. */ |
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41 private static Logger log = Logger.getLogger(ManualPointsArtifact.class); |
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42 |
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43 /** The name of the artifact. */ |
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44 public static final String ARTIFACT_NAME = "manualpoints"; |
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45 |
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46 |
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47 public ManualPointsArtifact() { |
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48 log.debug("ManualPointsArtifact.ManualPointsArtifact()"); |
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49 } |
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50 |
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51 |
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52 /** |
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53 * Gets called from factory to set things up. |
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54 */ |
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55 @Override |
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56 public void setup( |
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57 String identifier, |
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58 ArtifactFactory factory, |
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59 Object context, |
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60 CallMeta callMeta, |
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61 Document data, |
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62 List<Class> loadFacets) |
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63 { |
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64 log.debug("ManualPointsArtifact.setup"); |
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65 super.setup(identifier, factory, context, callMeta, data, loadFacets); |
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66 initialize(null, context, callMeta); |
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67 } |
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68 |
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69 |
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70 /** Return the name of this artifact. */ |
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71 @Override |
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72 public String getName() { |
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73 return ARTIFACT_NAME; |
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74 } |
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75 |
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76 |
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77 /** Access state data storing the jsonstring with points. */ |
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78 public String getPointsData(String facetName) { |
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79 return getDataAsString(facetName + ".data"); |
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80 } |
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81 |
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82 |
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83 /** |
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84 * Access state data storing the jsonstring with lines. |
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85 * @param facetName Name of facet or null if the so far |
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86 * only known case should be picked. |
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87 * @return (String) value of data element (expect json). |
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88 */ |
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89 public String getLinesData(String facetName) { |
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90 if (facetName == null) |
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91 return getDataAsString("cross_section.manualpoints.lines"); |
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92 // TODO .lineS? |
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93 return getDataAsString(facetName + ".line"); |
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94 } |
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95 |
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96 |
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97 /** Setup state and facet. */ |
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98 @Override |
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99 protected void initialize(Artifact artifact, Object context, CallMeta meta) { |
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100 log.debug("ManualPointsArtifact.initialize"); |
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101 List<Facet> fs = new ArrayList<Facet>(); |
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102 |
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103 DefaultState state = (DefaultState) getCurrentState(context); |
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104 state.computeInit(this, hash(), context, meta, fs); |
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105 if (!fs.isEmpty()) { |
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106 log.debug("Facets to add in ManualPointsArtifact.initialize ."); |
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107 addFacets(getCurrentStateId(), fs); |
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108 } |
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109 else { |
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110 log.debug("No facets to add in ManualPointsArtifact.initialize (" |
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111 + state.getID() + ")."); |
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112 } |
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113 } |
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114 |
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115 |
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116 /** |
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117 * Get value of line at index. |
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118 * @param index index in json array defining lines. |
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119 * @return water height of line at given index. |
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120 */ |
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121 protected double getLine(int index) { |
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122 try { |
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123 JSONArray lines = new JSONArray(getLinesData(null)); |
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124 JSONArray array = lines.getJSONArray(index); |
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125 |
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126 return array.getDouble(0); |
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127 } |
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128 catch(JSONException e){ |
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129 log.error("Could not decode json for line."); |
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130 return 0d; |
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131 } |
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132 } |
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133 |
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134 |
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135 /** |
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136 * Get the water line "surface". |
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137 * @param index index of facets data. |
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138 * @param csl 'ground' against which to determine water surface. |
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139 * @param a (ignored in this implementation). |
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140 * @param b (ignored in this implementation). |
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141 * @param context (ignored in this implementation). |
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142 */ |
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143 @Override |
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144 public Lines.LineData getWaterLines( |
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145 int index, |
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146 FastCrossSectionLine csl, |
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147 double a, double b, |
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148 CallContext context |
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149 ) { |
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150 List<Point2D> points = csl.getPoints(); |
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151 return Lines.createWaterLines(points, getLine(index)); |
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152 } |
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153 } |
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154 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |