Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/WDifferencesState.java @ 1927:1f90fdd4fa04

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Resolved TODO about caching certain WstValueTables. flys-artifacts/trunk@3307 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Wed, 23 Nov 2011 11:07:34 +0000
parents 6f047a407f84
children 3a5ef4ac8e0f
rev   line source
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08048bd090e6 Added very stubby WDifferences State/OutGenerator for WINFOArtifact.
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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
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17 import de.intevation.flys.artifacts.math.WKmsOperation;
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18
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19 import de.intevation.flys.artifacts.model.CalculationResult;
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20 import de.intevation.flys.artifacts.model.DataFacet;
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21 import de.intevation.flys.artifacts.model.DifferenceCurveFacet;
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22 import de.intevation.flys.artifacts.model.FacetTypes;
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23 import de.intevation.flys.artifacts.model.WKms;
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24 import de.intevation.flys.artifacts.model.WQKms;
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25
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26 import de.intevation.flys.utils.FLYSUtils;
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27 import de.intevation.flys.utils.StringUtil;
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28
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29
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30 public class WDifferencesState
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31 extends DefaultState
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32 implements FacetTypes
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33 {
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34 /** The logger that is used in this state. */
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35 private static Logger logger = Logger.getLogger(WDifferencesState.class);
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36
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37
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38 public WDifferencesState() {
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39 }
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40
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41
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42 /** Specify to display nothing (this is kind of a "final" state). */
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43 @Override
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44 protected String getUIProvider() {
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45 return "noinput";
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46 }
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47
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48
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49 @Override
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50 public boolean validate(Artifact artifact)
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51 throws IllegalArgumentException
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52 {
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53 FLYSArtifact flys = (FLYSArtifact) artifact;
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54
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55 StateData data = flys.getData("diffids");
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56
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57 if (data == null) {
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58 throw new IllegalArgumentException("diffids is empty");
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59 }
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60
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61 // TODO: Also validate format.
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62
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63 return true;
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64 }
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65
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66
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67 protected WKms getWKms(String mingle, CallContext context) {
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68 String[] def = mingle.split(";");
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69 String uuid = def[0];
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70 String name = def[1];
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71 int idx = Integer.parseInt(def[2]);
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72
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73 if (name.startsWith("staticwkms")) {
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74 StaticWKmsArtifact staticWKms =
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75 (StaticWKmsArtifact) FLYSUtils.getArtifact(
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76 uuid,
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77 context);
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78 logger.debug("WDifferencesState obtain data from StaticWKms");
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79 WKms wkms = staticWKms.getWKms(idx);
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80 if (wkms == null)
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81 logger.error("No WKms from artifact.");
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82 return wkms;
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83 }
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84
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85 WINFOArtifact flys = (WINFOArtifact) FLYSUtils.getArtifact(
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86 uuid,
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87 context);
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88
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89 if (flys == null) {
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90 logger.warn("One of the artifacts (1) for diff calculation could not be loaded");
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91 return null;
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92 }
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93 else{
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94 WQKms[] wqkms = (WQKms[]) flys.getWaterlevelData().
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95 getData();
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96 if (wqkms == null)
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97 logger.warn("not waterlevels in artifact");
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98 else if (wqkms.length < idx)
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99 logger.warn("not enough waterlevels in artifact");
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100 return wqkms[idx];
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101 }
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102 }
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103
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104
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105 /**
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106 * Return CalculationResult with Array of WKms that are difference of
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107 * Waterlevels. Add respective facets (DifferencesCurveFacet, DataFacet).
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108 */
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109 @Override
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110 public Object computeAdvance(
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111 FLYSArtifact artifact,
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112 String hash,
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113 CallContext context,
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114 List<Facet> facets,
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115 Object old
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116 ) {
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117 WINFOArtifact winfo = (WINFOArtifact) artifact;
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118 String id = getID();
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119
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120 // Load the Artifacts/facets that we want to subtract and display.
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121 // Expected format is:
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122 // [42537f1e-3522-42ef-8968-635b03d8e9c6;longitudinal_section.w;0]#[1231f2-....]
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123 String diffids = winfo.getDataAsString("diffids");
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124 logger.debug("WDifferencesState has: " + diffids);
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125 String datas[] = diffids.split("#");
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126
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127 // Validate the Data-Strings.
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128 for (String s: datas) {
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129 if (!WaterlevelSelectState.isValueValid(winfo.getDataAsString("diffids"))) {
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130 // TODO: escalate.
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131 }
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132 }
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133
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134 if (datas.length < 2) {
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135 // TODO crash with style
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136 }
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137
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138 List<WKms> wkmss = new ArrayList<WKms>();
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139
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140 for(int i = 0; i < datas.length; i+=2) {
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141 // e.g.:
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142 // 42537f1e-3522-42ef-8968-635b03d8e9c6;longitudinal_section.w;1
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143 WKms minuendWKms = getWKms(StringUtil.unbracket(datas[i+0]),
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144 context);
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145 WKms subtrahendWKms = getWKms(StringUtil.unbracket(datas[i+1]),
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146 context);
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147
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148 String facetName = "diff ()";
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149
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150 if (minuendWKms != null && subtrahendWKms != null) {
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151 facetName = StringUtil.wWrap(minuendWKms.getName())
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152 + " - " + StringUtil.wWrap(subtrahendWKms.getName());
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153 WKms wkms = WKmsOperation.SUBTRACTION.operate(minuendWKms,
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154 subtrahendWKms);
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155 wkms.setName(facetName);
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156 wkmss.add(wkms);
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157 logger.debug("WKMSSubtraction happened");
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158 }
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159
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160 if (facets != null) {
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161 facets.add(new DifferenceCurveFacet(i/2, W_DIFFERENCES, facetName,
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162 ComputeType.ADVANCE, id, hash));
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163 facets.add(new DataFacet(CSV, "CSV data"));
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164 logger.debug("Adding facets in WDifferencesState.");
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165 }
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166 else {
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167 logger.debug("Not adding facets in WDifferencesState.");
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168 }
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169 }
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170
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171 // TODO Evaluate whether null is okay as reports.
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172 WKms[] diffs = wkmss.toArray(new WKms[wkmss.size()]);
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173 CalculationResult result = new CalculationResult(diffs, null);
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174 return result;
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175 }
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176 }
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177 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org