Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/WDifferencesState.java @ 2089:0da8874bd378

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Added initial state to map artifact to be able to advance and step back. The map artifact overrides describe() to have the complete UI information in the describe response document. flys-artifacts/trunk@3613 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Raimund Renkert <raimund.renkert@intevation.de>
date Fri, 06 Jan 2012 12:02:10 +0000
parents 6f047a407f84
children 3a5ef4ac8e0f
rev   line source
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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