Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/ExternalWMSArtifact.java @ 3643:171db4d5d3cb

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FixA: AT export: prevent some numerical problems with steep functions around zero. flys-artifacts/trunk@5363 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Wed, 05 Sep 2012 08:38:12 +0000
parents 063b784b60b4
children a2735a4bf75e
rev   line source
1926
fde3db5e68e8 Added a new Artifact to enable users to add external WMS layers to floodmaps.
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1 package de.intevation.flys.artifacts;
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2
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3 import java.util.ArrayList;
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4 import java.util.List;
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5
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6 import org.apache.log4j.Logger;
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7
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8 import org.w3c.dom.Document;
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9
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10 import de.intevation.artifacts.Artifact;
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11 import de.intevation.artifacts.ArtifactFactory;
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12 import de.intevation.artifacts.CallMeta;
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13
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14 import de.intevation.artifactdatabase.state.DefaultOutput;
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15 import de.intevation.artifactdatabase.state.Facet;
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16 import de.intevation.artifactdatabase.state.State;
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17
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18 import de.intevation.flys.artifacts.states.WMSBackgroundState;
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19
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20
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21 public class ExternalWMSArtifact extends StaticFLYSArtifact {
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22
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23 public static final String NAME = "external_wms";
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24
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25 private static final Logger logger =
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26 Logger.getLogger(ExternalWMSArtifact.class);
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27
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28
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29 @Override
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30 public String getName() {
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31 return NAME;
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32 }
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33
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34
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35 @Override
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36 public void setup(
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37 String identifier,
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38 ArtifactFactory factory,
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39 Object context,
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40 CallMeta callMeta,
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41 Document data)
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42 {
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43 logger.info("ExternalWMSArtifact.setup");
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44
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45 super.setup(identifier, factory, context, callMeta, data);
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46
2748
6717b4725ddf Take advantage of refactorisation.
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47 String ids = getDatacageIDValue(data);
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48
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49 if (ids != null && ids.length() > 0) {
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8afd6a9bb244 Cosmetics.
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50 addStringData("ids", ids);
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51 }
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52 else {
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53 throw new IllegalArgumentException("No attribute 'ids' found!");
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54 }
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55
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56 List<Facet> fs = new ArrayList<Facet>();
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57
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58 WMSBackgroundState s = (WMSBackgroundState) getCurrentState(context);
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59 s.computeInit(this, hash(), context, callMeta, fs);
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60
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61 if (!fs.isEmpty()) {
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62 facets.put(getCurrentStateId(), fs);
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63 }
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64 }
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65
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66
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67 @Override
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68 protected void initialize(
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69 Artifact artifact,
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70 Object context,
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71 CallMeta callMeta)
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72 {
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73 // do nothing
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74 }
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75
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76
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77 @Override
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78 public State getCurrentState(Object cc) {
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79 State s = new ExternalWMSState(this);
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80
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81 List<Facet> fs = facets.get(getCurrentStateId());
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82
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83 DefaultOutput o = new DefaultOutput(
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84 "floodmap",
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85 "floodmap",
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86 "image/png",
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87 fs,
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88 "map");
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89
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90 s.getOutputs().add(o);
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91
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92 return s;
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93 }
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94
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95
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96 /**
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97 * Get a list containing the one and only State.
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98 * @param context ignored.
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99 * @return list with one and only state.
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100 */
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101 @Override
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102 protected List<State> getStates(Object context) {
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103 ArrayList<State> states = new ArrayList<State>();
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104 states.add(getCurrentState(context));
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105
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106 return states;
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107 }
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108
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109
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110 public static class ExternalWMSState extends WMSBackgroundState {
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111
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112 protected ExternalWMSArtifact artifact;
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113
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114 protected String ids;
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115
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116
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117 public ExternalWMSState(ExternalWMSArtifact artifact) {
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118 super();
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119 this.artifact = artifact;
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120 }
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121
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122 protected String getIds() {
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123 if (ids == null || ids.length() == 0) {
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124 ids = artifact.getDataAsString("ids");
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125 }
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126
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127 return ids;
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128 }
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129
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130 @Override
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131 protected String getFacetType() {
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132 return FLOODMAP_EXTERNAL_WMS;
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133 }
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134
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135 @Override
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136 protected String getSrid() {
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137 return "";
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138 }
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139
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140 @Override
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141 protected String getUrl() {
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142 String ids = getIds();
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143 String[] parts = ids.split(";");
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144
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145 return parts[0];
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146 }
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147
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148 @Override
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149 protected String getLayer() {
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150 String ids = getIds();
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151 String[] parts = ids.split(";");
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152
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153 return parts[1];
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154 }
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155
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156 @Override
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157 protected String getTitle(CallMeta meta) {
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158 String ids = getIds();
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159 String[] parts = ids.split(";");
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160
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161 return parts[2];
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162 }
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163 } // end of class ExternalWMSState
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164 }
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165 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org