Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/WDifferencesState.java @ 5449:504a62887217

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Datacage: Compile XPath expressions and reuse them. With the introduction of filters in dc:elements XPath expressions are evalutated very often so compiling them should reduce the overhead significantly.
author Sascha L. Teichmann <teichmann@intevation.de>
date Wed, 27 Mar 2013 10:59:55 +0100
parents 102050c4fc00
children
rev   line source
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08048bd090e6 Added very stubby WDifferences State/OutGenerator for WINFOArtifact.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
1 package de.intevation.flys.artifacts.states;
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2
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diff changeset
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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10
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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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diff changeset
16 import de.intevation.flys.artifacts.ChartArtifact;
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17
08048bd090e6 Added very stubby WDifferences State/OutGenerator for WINFOArtifact.
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18 import de.intevation.flys.artifacts.math.WKmsOperation;
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19
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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
08048bd090e6 Added very stubby WDifferences State/OutGenerator for WINFOArtifact.
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29 import de.intevation.flys.utils.FLYSUtils;
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d251e5929860 Extracted StringUtil.unbracket from WaterlevelSelectState.strip .
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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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2490d6ef394e Extended WDifferences bracnh of WINFO to have calculation in dedicated,
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40
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41 public WDifferencesState() {
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42 }
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43
08048bd090e6 Added very stubby WDifferences State/OutGenerator for WINFOArtifact.
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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
08048bd090e6 Added very stubby WDifferences State/OutGenerator for WINFOArtifact.
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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 /**
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71 * Access the data (wkms).
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72 */
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73 protected WKms getWKms(String mingle, CallContext context) {
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74 String[] def = mingle.split(";");
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75 String uuid = def[0];
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76 String name = def[1];
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77 int idx = Integer.parseInt(def[2]);
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78
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79 if (name.startsWith("staticwkms")) {
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80 StaticWKmsArtifact staticWKms =
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81 (StaticWKmsArtifact) FLYSUtils.getArtifact(
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82 uuid,
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83 context);
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84 logger.debug("WDifferencesState obtain data from StaticWKms");
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85 WKms wkms = staticWKms.getWKms(idx);
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86 if (wkms == null)
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87 logger.error("No WKms from artifact.");
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88 return wkms;
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89 }
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90
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91 WINFOArtifact flys = (WINFOArtifact) FLYSUtils.getArtifact(
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92 uuid,
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93 context);
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94
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95 if (flys == null) {
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96 logger.warn("One of the artifacts (1) for diff calculation could not be loaded");
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97 return null;
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98 }
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99 else{
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100 WQKms[] wqkms = (WQKms[]) flys.getWaterlevelData().
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101 getData();
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102 if (wqkms == null)
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103 logger.warn("not waterlevels in artifact");
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104 else if (wqkms.length < idx)
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105 logger.warn("not enough waterlevels in artifact");
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106 return wqkms[idx];
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107 }
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108 }
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109
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110
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111 /**
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112 * Return CalculationResult with Array of WKms that are difference of
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113 * Waterlevels. Add respective facets (DifferencesCurveFacet, DataFacet).
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114 */
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115 @Override
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116 public Object computeAdvance(
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117 FLYSArtifact artifact,
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118 String hash,
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119 CallContext context,
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120 List<Facet> facets,
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121 Object old
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122 ) {
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123 if (artifact instanceof ChartArtifact) {
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124 ChartArtifact chart = (ChartArtifact)artifact;
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125 facets.add(new EmptyFacet());
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126 return null;
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127 }
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128 WINFOArtifact winfo = (WINFOArtifact) artifact;
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129 String id = getID();
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130
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131 // Load the Artifacts/facets that we want to subtract and display.
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132 // Expected format is:
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133 // [42537f1e-3522-42ef-8968-635b03d8e9c6;longitudinal_section.w;0]#[1231f2-....]
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134 String diffids = winfo.getDataAsString("diffids");
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135 logger.debug("WDifferencesState has: " + diffids);
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136 String datas[] = diffids.split("#");
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137
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138 // Validate the Data-Strings.
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139 for (String s: datas) {
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140 if (!WaterlevelSelectState.isValueValid(s)) {
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141 // TODO: escalate.
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142 }
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143 }
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144
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145 if (datas.length < 2) {
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146 // TODO crash with style
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147 }
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148
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149 List<WKms> wkmss = new ArrayList<WKms>();
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150
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151 for(int i = 0; i < datas.length; i+=2) {
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152 // e.g.:
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153 // 42537f1e-3522-42ef-8968-635b03d8e9c6;longitudinal_section.w;1
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154 WKms minuendWKms = getWKms(StringUtil.unbracket(datas[i+0]),
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155 context);
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156 WKms subtrahendWKms = getWKms(StringUtil.unbracket(datas[i+1]),
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157 context);
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158
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159 String facetName = "diff ()";
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160
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161 if (minuendWKms != null && subtrahendWKms != null) {
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2180
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162 facetName = StringUtil.wWrap(minuendWKms.getName())
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163 + " - " + StringUtil.wWrap(subtrahendWKms.getName());
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164 WKms wkms = WKmsOperation.SUBTRACTION.operate(minuendWKms,
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165 subtrahendWKms);
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166 wkms.setName(facetName);
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167 wkmss.add(wkms);
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168 logger.debug("WKMSSubtraction happened");
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169 }
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170 if (facets != null) {
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parents: 1670
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171 facets.add(new DifferenceCurveFacet(i/2, W_DIFFERENCES, facetName,
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172 ComputeType.ADVANCE, id, hash));
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173 }
2180
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174 }
65b32220f197 Issue 138.
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175
65b32220f197 Issue 138.
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parents: 2136
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176 if (facets != null) {
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177 facets.add(new DataFacet(CSV, "CSV data"));
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178 facets.add(new DataFacet(PDF, "PDF data"));
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179 logger.debug("Adding facets in WDifferencesState.");
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180 }
65b32220f197 Issue 138.
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181 else {
65b32220f197 Issue 138.
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182 logger.debug("Not adding facets in WDifferencesState.");
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parents:
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183 }
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parents:
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184
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185 // TODO Evaluate whether null is okay as reports.
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186 WKms[] diffs = wkmss.toArray(new WKms[wkmss.size()]);
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187 CalculationResult result = new CalculationResult(diffs, null);
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188 return result;
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parents:
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189 }
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parents:
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190 }
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parents:
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191 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org