Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/ReferenceCurveFacet.java @ 5476:f9eee1909e6e

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Fix null pointer exception in ImportMeasurement Station Range may be null
author Andre Heinecke <aheinecke@intevation.de>
date Wed, 27 Mar 2013 17:49:46 +0100
parents 5642a83420f2
children
rev   line source
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1 package de.intevation.flys.artifacts.model;
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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 import java.util.Collections;
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6
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7 import de.intevation.artifactdatabase.state.Facet;
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8
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9 import de.intevation.artifacts.Artifact;
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10 import de.intevation.artifacts.CallContext;
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11
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12 import de.intevation.flys.artifacts.FLYSArtifact;
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13 import de.intevation.flys.artifacts.WINFOArtifact;
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14
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15 import de.intevation.flys.artifacts.states.DefaultState.ComputeType;
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16
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17 import org.apache.log4j.Logger;
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19
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fdeb6d61c24c Cosmetics.
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20 /** Facet for W-over-Ws. */
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21 public class ReferenceCurveFacet
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22 extends DataFacet
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23 {
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24 private static Logger log = Logger.getLogger(ReferenceCurveFacet.class);
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25
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26 public static final String CONTEXT_KEY = "reference.curve.axis.scale";
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27
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28 /** Blackboard data provider key for reference curves start km. */
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29 public static final String BB_REFERENCECURVE_STARTKM =
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30 "reference_curve.startkm";
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31
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32 /** Blackboard data provider key for reference curves end kms. */
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33 public static final String BB_REFERENCECURVE_ENDKMS =
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34 "reference_curve.endkms";
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35
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36
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37 public ReferenceCurveFacet() {
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38 }
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39
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41 public ReferenceCurveFacet(int index, String name, String description) {
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42 super(index, name, description, ComputeType.ADVANCE, null, null);
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43 }
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44
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46 public ReferenceCurveFacet(
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47 int index,
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48 String name,
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49 String description,
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50 ComputeType type,
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51 String stateID,
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52 String hash
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53 ) {
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54 super(index, name, description, type, hash, stateID);
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55 }
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56
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57
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58 public Object getData(Artifact artifact, CallContext context) {
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59
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60 if (log.isDebugEnabled()) {
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61 log.debug("Get data for reference curve at index: " + index +
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62 " /stateId: " + stateId);
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63 }
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64
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65 return getWWQQ(artifact, context);
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66 }
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67
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68
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69 /**
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70 * Can provide parameters of reference curve
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71 * @param key will respond on BB_REFERENCECURVE START/ENDKMS
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72 * @param param ignored
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73 * @param context ignored
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74 * @return whatever parameters for reference curve
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75 */
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76 @Override
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77 public Object provideBlackboardData(Artifact artifact,
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78 Object key,
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79 Object param,
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80 CallContext context
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81 ) {
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82 WINFOArtifact winfo = (WINFOArtifact) artifact;
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83 if (key.equals(BB_REFERENCECURVE_STARTKM)) {
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84 return winfo.getReferenceStartKm();
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85 }
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86 else if (key.equals(BB_REFERENCECURVE_ENDKMS)) {
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87 return winfo.getReferenceEndKms();
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88 }
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89 else {
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90 return null;
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91 }
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92 }
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93
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94
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95 protected WWQQ getWWQQ(Artifact artifact, CallContext context) {
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96 FLYSArtifact winfo = (FLYSArtifact)artifact;
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97
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98 CalculationResult res = (CalculationResult)
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99 winfo.compute(context, hash, stateId, type, false);
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100
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101 return ((WWQQ [])res.getData())[index];
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102 }
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103
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104
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105 @Override
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106 public void set(Facet other) {
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107 super.set(other);
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108 ReferenceCurveFacet o = (ReferenceCurveFacet)other;
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109 type = o.type;
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110 hash = o.hash;
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111 stateId = o.stateId;
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112 }
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113
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114
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115 /** Copy deeply. */
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116 @Override
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117 public Facet deepCopy() {
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118 ReferenceCurveFacet copy = new ReferenceCurveFacet();
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119 copy.set(this);
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120 return copy;
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121 }
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122
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123
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124 @Override
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125 public List getStaticDataProviderKeys(Artifact art) {
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126 List list = new ArrayList();
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127 list.add(BB_REFERENCECURVE_STARTKM);
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128 list.add(BB_REFERENCECURVE_ENDKMS);
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129 return list;
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130 }
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131
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132
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133 @Override
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134 public List getDataProviderKeys(Artifact art, CallContext context) {
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135
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136 // compute / get data
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137 Object obj = context.getContextValue(CONTEXT_KEY);
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138
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139 if (!(obj instanceof WWAxisTypes)) {
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140 obj = new WWAxisTypes(getWWQQ(art, context));
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141 context.putContextValue(CONTEXT_KEY, obj);
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142 }
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143 else {
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144 ((WWAxisTypes)obj).classify(getWWQQ(art, context));
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145 }
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146
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147 return getStaticDataProviderKeys(art);//Collections.emptyList();
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148 }
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149 }
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150 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org