Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/WDifferencesState.java @ 1686:e8d1e531687a

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Bugfix: #114 Enabled rendering charts with a single data point. flys-artifacts/trunk@2904 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Fri, 07 Oct 2011 13:15:48 +0000
parents fc9719cddbc6
children 56953439dcae
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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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.WINFOArtifact;
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15
08048bd090e6 Added very stubby WDifferences State/OutGenerator for WINFOArtifact.
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16 import de.intevation.flys.artifacts.math.WKmsOperation;
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17
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18 import de.intevation.flys.artifacts.model.CalculationResult;
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19 import de.intevation.flys.artifacts.model.DataFacet;
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20 import de.intevation.flys.artifacts.model.DifferenceCurveFacet;
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21 import de.intevation.flys.artifacts.model.FacetTypes;
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22 import de.intevation.flys.artifacts.model.WKms;
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23 import de.intevation.flys.artifacts.model.WQKms;
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24
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25 import de.intevation.flys.utils.FLYSUtils;
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26 import de.intevation.flys.utils.StringUtil;
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27
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28
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29 public class WDifferencesState
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30 extends DefaultState
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31 implements FacetTypes
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32 {
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33 /** The logger that is used in this state. */
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34 private static Logger logger = Logger.getLogger(WDifferencesState.class);
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35
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36
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37 public WDifferencesState() {
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38 }
08048bd090e6 Added very stubby WDifferences State/OutGenerator for WINFOArtifact.
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39
08048bd090e6 Added very stubby WDifferences State/OutGenerator for WINFOArtifact.
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40
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41 /** Specify to display nothing (this is kind of a "final" state). */
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42 @Override
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43 protected String getUIProvider() {
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44 return "noinput";
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45 }
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46
08048bd090e6 Added very stubby WDifferences State/OutGenerator for WINFOArtifact.
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47
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48 @Override
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49 public boolean validate(Artifact artifact)
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50 throws IllegalArgumentException
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51 {
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52 FLYSArtifact flys = (FLYSArtifact) artifact;
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53
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54 StateData data = flys.getData("diffids");
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55
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56 if (data == null) {
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57 throw new IllegalArgumentException("diffids is empty");
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58 }
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59
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60 // TODO: Also validate format.
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61
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62 return true;
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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 * Return CalculationResult with Array of WKms that are difference of
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68 * Waterlevels. Add respective facets (DifferencesCurveFacet, DataFacet).
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69 */
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70 @Override
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71 public Object computeAdvance(
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72 FLYSArtifact artifact,
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73 String hash,
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74 CallContext context,
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75 List<Facet> facets,
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76 Object old
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77 ) {
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78 WINFOArtifact winfo = (WINFOArtifact)artifact;
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79 String id = getID();
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80
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81 // Load the Artifacts/facets that we want to subtract and display.
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82 // Expected format is:
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83 // [42537f1e-3522-42ef-8968-635b03d8e9c6;longitudinal_section.w;0]#[1231f2-....]
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84 String diffids = winfo.getDataAsString("diffids");
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85 String datas[] = diffids.split("#");
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86
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87 // Validate the Data-Strings.
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88 for (String s: datas) {
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89 if (!WaterlevelSelectState.isValueValid(winfo.getDataAsString("diffids"))) {
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90 // TODO: escalate.
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91 }
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92 }
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93
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94 if (datas.length < 2) {
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95 // TODO crash with style
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96 ;
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97 }
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98
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99 List<WKms> wkmss = new ArrayList<WKms>();
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100
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101 for(int i = 0; i < datas.length; i+=2) {
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102 // e.g.:
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103 // 42537f1e-3522-42ef-8968-635b03d8e9c6;longitudinal_section.w;1
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104 String[] def1 = StringUtil.unbracket(datas[i+0]).split(";");
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105 String[] def2 = StringUtil.unbracket(datas[i+1]).split(";");
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106 String uuid1 = def1[0];
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107 String uuid2 = def2[0];
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108 int idx1 = Integer.parseInt(def1[2]);
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109 int idx2 = Integer.parseInt(def2[2]);
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110
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111 WINFOArtifact flys1 = (WINFOArtifact) FLYSUtils.getArtifact(
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112 uuid1,
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113 context);
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114 WINFOArtifact flys2 = (WINFOArtifact) FLYSUtils.getArtifact(
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115 uuid2,
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116 context);
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117
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118 if (flys1 == null) {
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119 logger.warn("One of the artifacts (1) for diff calculation could not be loaded");
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120 }
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121 if (flys2 == null) {
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122 logger.warn("One of the artifacts (2) for diff calculation could not be loaded");
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123 }
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124 // TODO: Issue of multiple results in calculation
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125 String facetName = "diff ()";
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126
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127 if (flys1 != null && flys2 != null) {
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128 WQKms[] minuend = (WQKms[]) flys1.getWaterlevelData().
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129 getData();
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130 WQKms[] subtrahend = (WQKms[]) flys2.getWaterlevelData().
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131 getData();
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132
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133 facetName = StringUtil.wWrap(minuend[idx1].getName())
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134 + " - " + StringUtil.wWrap(subtrahend[idx2].getName());
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135 WKms wkms = WKmsOperation.SUBTRACTION.operate(minuend[idx1],
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136 subtrahend[idx2]);
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137 wkms.setName(facetName);
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138 wkmss.add(wkms);
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139 logger.debug("WKMSSubtraction happened");
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140 }
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141
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142 if (facets != null) {
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143 facets.add(new DifferenceCurveFacet(i, W_DIFFERENCES, facetName,
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144 ComputeType.ADVANCE, id, hash));
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145 facets.add(new DataFacet(CSV, "CSV data"));
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146 }
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147 else {
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148 logger.debug("Not adding facets in WDifferencesState.");
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149 }
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150 }
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151
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152 // TODO Evaluate whether null is okay as reports.
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153 WKms[] diffs = wkmss.toArray(new WKms[wkmss.size()]);
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154 CalculationResult result = new CalculationResult(diffs, null);
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155 return result;
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156 }
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157 }
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158 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org