Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FlowVelocityCalculation.java @ 3436:0d63581c5df1
FLYSArtifact: Prevent NPE in getOutputForState(). Why does this happen?
flys-artifacts/trunk@5099 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Mon, 23 Jul 2012 08:38:23 +0000 |
parents | 0f7abd95c6e2 |
children | 048a02e29808 |
rev | line source |
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Added state, calculation and csv exporter for MINFO flow velociy calculation.
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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 |
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6 import org.apache.log4j.Logger; |
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7 |
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8 import de.intevation.artifacts.Artifact; |
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9 import de.intevation.flys.model.DischargeZone; |
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10 import de.intevation.flys.model.FlowVelocityModel; |
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11 import de.intevation.flys.model.FlowVelocityModelValue; |
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12 import de.intevation.flys.model.River; |
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13 |
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14 import de.intevation.flys.artifacts.access.FlowVelocityAccess; |
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15 import de.intevation.flys.utils.FLYSUtils; |
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16 |
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17 |
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18 public class FlowVelocityCalculation extends Calculation { |
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19 |
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20 private static final Logger logger = |
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21 Logger.getLogger(FlowVelocityCalculation.class); |
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22 |
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23 |
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24 public CalculationResult calculate(FlowVelocityAccess access) { |
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25 logger.info("FlowVelocityCalculation.calculate"); |
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26 |
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27 int[] mainIds = access.getMainChannels(); |
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28 int[] totalIds = access.getTotalChannels(); |
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29 |
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30 if (logger.isDebugEnabled()) { |
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31 Artifact a = access.getArtifact(); |
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32 logger.debug("Artifact '" + a.identifier() + "' contains:"); |
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33 if (mainIds != null) { |
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34 logger.debug(" " + mainIds.length + " main channel ids"); |
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35 } |
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36 |
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37 if (totalIds != null) { |
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38 logger.debug(" " + totalIds.length + " total channel ids"); |
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39 } |
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40 } |
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41 |
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42 List<DischargeZone> zones = getDischargeZones(mainIds, totalIds); |
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43 List<FlowVelocityModel> models = getFlowVelocityModels(access, zones); |
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44 |
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45 return buildCalculationResult(access, models); |
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46 } |
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47 |
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48 |
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49 protected List<DischargeZone> getDischargeZones( |
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50 int[] mainIds, |
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51 int[] totalIds |
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52 ) { |
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53 List<DischargeZone> zones = new ArrayList<DischargeZone>(); |
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54 |
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55 if (mainIds != null) { |
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56 for (int id: mainIds) { |
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57 DischargeZone zone = DischargeZone.getDischargeZoneById(id); |
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58 |
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59 if (zone != null) { |
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60 zones.add(zone); |
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61 } |
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62 } |
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63 } |
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64 |
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65 if (totalIds != null) { |
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66 for (int id: totalIds) { |
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67 DischargeZone zone = DischargeZone.getDischargeZoneById(id); |
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68 |
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69 if (zone != null) { |
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70 zones.add(zone); |
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71 } |
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72 } |
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73 } |
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74 |
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75 return zones; |
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76 } |
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77 |
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78 |
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79 protected List<FlowVelocityModel> getFlowVelocityModels( |
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80 FlowVelocityAccess access, |
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81 List<DischargeZone> zones |
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82 ) { |
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83 River river = FLYSUtils.getRiver(access.getArtifact()); |
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84 |
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85 List<FlowVelocityModel> models = new ArrayList<FlowVelocityModel>(); |
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86 |
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87 for (DischargeZone zone: zones) { |
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88 List<FlowVelocityModel> model = |
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89 FlowVelocityModel.getModels(river, zone); |
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90 |
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91 if (model != null) { |
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92 models.addAll(model); |
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93 } |
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94 } |
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95 |
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96 return models; |
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97 } |
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98 |
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99 |
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100 protected void prepareData( |
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101 FlowVelocityData data, |
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102 FlowVelocityModel model, |
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103 double kmLo, |
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104 double kmHi |
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105 ) { |
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106 List<FlowVelocityModelValue> values = |
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107 FlowVelocityModelValue.getValues(model, kmLo, kmHi); |
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108 |
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109 logger.debug("Found " + values.size() + " values for model."); |
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110 |
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111 for (FlowVelocityModelValue value: values) { |
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112 data.addKM(value.getStation().doubleValue()); |
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113 data.addQ(value.getQ().doubleValue()); |
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114 data.addVTotal(value.getTotalChannel().doubleValue()); |
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115 data.addVMain(value.getMainChannel().doubleValue()); |
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116 data.addTauMain(value.getShearStress().doubleValue()); |
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117 } |
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118 |
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119 DischargeZone zone = model.getDischargeZone(); |
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120 String lo = zone.getLowerDischarge(); |
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121 String hi = zone.getUpperDischarge(); |
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122 |
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123 if (lo.equals(hi)) { |
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124 data.setZone(lo); |
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125 } |
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126 else { |
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127 data.setZone(lo + " - " + hi); |
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128 } |
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129 } |
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130 |
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131 |
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132 protected CalculationResult buildCalculationResult( |
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133 FlowVelocityAccess access, |
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134 List<FlowVelocityModel> models |
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135 ) { |
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136 double kmLo = access.getLowerKM(); |
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137 double kmHi = access.getUpperKM(); |
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138 |
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139 logger.debug("Prepare data for km range: " + kmLo + " - " + kmHi); |
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140 |
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141 FlowVelocityData[] data = new FlowVelocityData[models.size()]; |
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142 |
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143 for (int i = 0, n = models.size(); i < n; i++) { |
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144 FlowVelocityData d = new FlowVelocityData(); |
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145 |
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146 prepareData(d, models.get(i), kmLo, kmHi); |
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147 |
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148 data[i] = d; |
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149 } |
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150 |
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151 logger.debug("Calculation contains " + data.length + " data items."); |
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152 |
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153 return new CalculationResult(data, this); |
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154 } |
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155 } |
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156 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 : |