Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/WDifferencesState.java @ 2599:fb7975828ffa

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#544 Added a service that allows querying gauge information. flys-artifacts/trunk@4175 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 20 Mar 2012 13:51:39 +0000
parents 65b32220f197
children 5642a83420f2
rev   line source
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08048bd090e6 Added very stubby WDifferences State/OutGenerator for WINFOArtifact.
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diff changeset
1 package de.intevation.flys.artifacts.states;
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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 de.intevation.artifactdatabase.state.Facet;
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9 import de.intevation.artifactdatabase.data.StateData;
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11 import de.intevation.artifacts.CallContext;
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12 import de.intevation.artifacts.Artifact;
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13 import de.intevation.flys.artifacts.FLYSArtifact;
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14 import de.intevation.flys.artifacts.StaticWKmsArtifact;
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15 import de.intevation.flys.artifacts.WINFOArtifact;
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16 import de.intevation.flys.artifacts.ChartArtifact;
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17
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18 import de.intevation.flys.artifacts.math.WKmsOperation;
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20 import de.intevation.flys.artifacts.model.CalculationResult;
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21 import de.intevation.flys.artifacts.model.DataFacet;
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22 import de.intevation.flys.artifacts.model.DifferenceCurveFacet;
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23 import de.intevation.flys.artifacts.model.EmptyFacet;
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24
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25 import de.intevation.flys.artifacts.model.FacetTypes;
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26 import de.intevation.flys.artifacts.model.WKms;
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27 import de.intevation.flys.artifacts.model.WQKms;
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28
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29 import de.intevation.flys.utils.FLYSUtils;
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30 import de.intevation.flys.utils.StringUtil;
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31
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32
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33 public class WDifferencesState
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34 extends DefaultState
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35 implements FacetTypes
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36 {
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37 /** The logger that is used in this state. */
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38 private static Logger logger = Logger.getLogger(WDifferencesState.class);
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39
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40
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41 public WDifferencesState() {
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42 }
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43
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44
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45 /** Specify to display nothing (this is kind of a "final" state). */
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46 @Override
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47 protected String getUIProvider() {
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48 return "noinput";
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49 }
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50
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51
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52 @Override
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53 public boolean validate(Artifact artifact)
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54 throws IllegalArgumentException
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55 {
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56 FLYSArtifact flys = (FLYSArtifact) artifact;
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57
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58 StateData data = flys.getData("diffids");
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59
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60 if (data == null) {
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61 throw new IllegalArgumentException("diffids is empty");
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62 }
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63
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64 // TODO: Also validate format.
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65
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66 return true;
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67 }
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68
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69
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70 protected WKms getWKms(String mingle, CallContext context) {
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71 String[] def = mingle.split(";");
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72 String uuid = def[0];
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73 String name = def[1];
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74 int idx = Integer.parseInt(def[2]);
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75
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76 if (name.startsWith("staticwkms")) {
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77 StaticWKmsArtifact staticWKms =
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78 (StaticWKmsArtifact) FLYSUtils.getArtifact(
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79 uuid,
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80 context);
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81 logger.debug("WDifferencesState obtain data from StaticWKms");
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82 WKms wkms = staticWKms.getWKms(idx);
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83 if (wkms == null)
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84 logger.error("No WKms from artifact.");
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85 return wkms;
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86 }
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87
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88 WINFOArtifact flys = (WINFOArtifact) FLYSUtils.getArtifact(
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89 uuid,
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90 context);
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91
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92 if (flys == null) {
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93 logger.warn("One of the artifacts (1) for diff calculation could not be loaded");
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94 return null;
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95 }
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96 else{
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97 WQKms[] wqkms = (WQKms[]) flys.getWaterlevelData().
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98 getData();
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99 if (wqkms == null)
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100 logger.warn("not waterlevels in artifact");
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101 else if (wqkms.length < idx)
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102 logger.warn("not enough waterlevels in artifact");
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103 return wqkms[idx];
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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 /**
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109 * Return CalculationResult with Array of WKms that are difference of
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110 * Waterlevels. Add respective facets (DifferencesCurveFacet, DataFacet).
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111 */
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112 @Override
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113 public Object computeAdvance(
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114 FLYSArtifact artifact,
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115 String hash,
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116 CallContext context,
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117 List<Facet> facets,
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118 Object old
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119 ) {
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120 if (artifact instanceof ChartArtifact) {
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121 ChartArtifact chart = (ChartArtifact)artifact;
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122 facets.add(new EmptyFacet());
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123 return null;
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124 }
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125 WINFOArtifact winfo = (WINFOArtifact) artifact;
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126 String id = getID();
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127
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128 // Load the Artifacts/facets that we want to subtract and display.
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129 // Expected format is:
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130 // [42537f1e-3522-42ef-8968-635b03d8e9c6;longitudinal_section.w;0]#[1231f2-....]
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131 String diffids = winfo.getDataAsString("diffids");
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132 logger.debug("WDifferencesState has: " + diffids);
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133 String datas[] = diffids.split("#");
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134
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135 // Validate the Data-Strings.
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136 for (String s: datas) {
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137 if (!WaterlevelSelectState.isValueValid(winfo.getDataAsString("diffids"))) {
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138 // TODO: escalate.
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139 }
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140 }
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141
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142 if (datas.length < 2) {
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143 // TODO crash with style
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144 }
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145
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146 List<WKms> wkmss = new ArrayList<WKms>();
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147
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148 for(int i = 0; i < datas.length; i+=2) {
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149 // e.g.:
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150 // 42537f1e-3522-42ef-8968-635b03d8e9c6;longitudinal_section.w;1
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151 WKms minuendWKms = getWKms(StringUtil.unbracket(datas[i+0]),
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152 context);
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153 WKms subtrahendWKms = getWKms(StringUtil.unbracket(datas[i+1]),
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154 context);
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155
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156 String facetName = "diff ()";
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157
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158 if (minuendWKms != null && subtrahendWKms != null) {
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159 facetName = StringUtil.wWrap(minuendWKms.getName())
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160 + " - " + StringUtil.wWrap(subtrahendWKms.getName());
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161 WKms wkms = WKmsOperation.SUBTRACTION.operate(minuendWKms,
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162 subtrahendWKms);
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163 wkms.setName(facetName);
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164 wkmss.add(wkms);
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165 logger.debug("WKMSSubtraction happened");
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166 }
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167 if (facets != null) {
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168 facets.add(new DifferenceCurveFacet(i/2, W_DIFFERENCES, facetName,
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169 ComputeType.ADVANCE, id, hash));
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170 }
2180
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171 }
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172
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173 if (facets != null) {
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174 facets.add(new DataFacet(CSV, "CSV data"));
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175 facets.add(new DataFacet(PDF, "PDF data"));
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176 logger.debug("Adding facets in WDifferencesState.");
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177 }
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178 else {
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179 logger.debug("Not adding facets in WDifferencesState.");
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180 }
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181
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182 // TODO Evaluate whether null is okay as reports.
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183 WKms[] diffs = wkmss.toArray(new WKms[wkmss.size()]);
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184 CalculationResult result = new CalculationResult(diffs, null);
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185 return result;
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186 }
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187 }
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188 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org