annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/GaugeDischargeArtifact.java @ 4489:fea3e4b6faba

Return after sending a redirect Maybe this avoids the internel state errors in tomcat.
author Björn Ricks <bjoern.ricks@intevation.de>
date Wed, 14 Nov 2012 10:37:21 +0100
parents 7500c7fbfaa9
children a2735a4bf75e
rev   line source
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1 package de.intevation.flys.artifacts;
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2
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3 import java.util.ArrayList;
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4 import java.util.Arrays;
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5 import java.util.List;
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6 import java.util.Map;
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7
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8 import org.apache.log4j.Logger;
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9
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10 import org.w3c.dom.Document;
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11
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12 import de.intevation.artifactdatabase.state.Facet;
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13
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14 import de.intevation.artifacts.Artifact;
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15 import de.intevation.artifacts.ArtifactFactory;
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16 import de.intevation.artifacts.CallMeta;
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17
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18 import de.intevation.flys.artifacts.model.FacetTypes;
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19 import de.intevation.flys.artifacts.model.WQKms;
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20
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21 import de.intevation.flys.artifacts.states.DefaultState;
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22
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23 import de.intevation.flys.artifacts.model.Calculation;
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24 import de.intevation.flys.artifacts.model.CalculationResult;
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25
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26 import de.intevation.flys.artifacts.model.DischargeTables;
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27
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28 import de.intevation.flys.model.Gauge;
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29 import de.intevation.flys.model.River;
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30
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31 import de.intevation.flys.utils.FLYSUtils;
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32
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33
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34 /**
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35 * Artifact to get discharge curves at gauges.
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36 */
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37 public class GaugeDischargeArtifact
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38 extends WINFOArtifact
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39 implements FacetTypes
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40 {
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41 /** The logger for this class. */
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42 private static Logger logger = Logger.getLogger(GaugeDischargeArtifact.class);
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43
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44 /** The name of the artifact. */
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45 public static final String ARTIFACT_NAME = "gaugedischarge";
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46
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47
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48 /**
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49 * Trivial Constructor.
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50 */
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51 public GaugeDischargeArtifact() {
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52 logger.debug("GaugeDischargeArtifact.GaugeDischargeArtifact()");
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53 }
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54
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55
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56 /**
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57 * Gets called from factory, to set things up.
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58 * Especially, when loaded via datacage mechanisms, provide the
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59 * data document.
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60 * @param data filled with stuff from dc, if any.
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61 */
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62 @Override
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63 public void setup(
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64 String identifier,
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65 ArtifactFactory factory,
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66 Object context,
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67 CallMeta callMeta,
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68 Document data)
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69 {
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70 logger.debug("GaugeDischargeArtifact.setup");
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71 String ids = StaticFLYSArtifact.getDatacageIDValue(data);
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72 addStringData("ids", ids);
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73 logger.debug("id for gaugedischarge: " + ids);
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74 super.setup(identifier, factory, context, callMeta, data);
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75 }
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76
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77
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78 /** Return the name of this artifact. */
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79 public String getName() {
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80 return ARTIFACT_NAME;
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81 }
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82
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83
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84 /**
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85 * Setup state and facet, copy from master artifact.
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86 */
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87 @Override
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88 protected void initialize(Artifact art, Object context, CallMeta meta) {
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89 logger.debug("GaugeDischargeArtifact.initialize");
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90 List<Facet> fs = new ArrayList<Facet>();
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91 FLYSArtifact artifact = (FLYSArtifact) art;
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92 importData(artifact, "river");
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93
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94 // Get the location(s)
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95 //importData(artifact, "ld_mode", ld_from, ld_to, ld_locations
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96 addStringData("ld_from", "0");
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97 addStringData("ld_to", "1000");
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98 addStringData("ld_mode", "distance");
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99
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100 DefaultState state = (DefaultState) getCurrentState(context);
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101 state.computeInit(this, hash(), context, meta, fs);
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102 if (!fs.isEmpty()) {
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103 logger.debug("Facets to add in GaugeDischargeArtifact.initialize. ("
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104 + state.getID() + "/ " + getCurrentStateId() + ").");
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105 facets.put(getCurrentStateId(), fs);
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106 }
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107 else {
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108 logger.debug("No facets to add in GaugeDischargeArtifact.initialize ("
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109 + state.getID() + "/ "+getCurrentStateId()+").");
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110 }
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111 }
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112
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113
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114 /** Get the Gauges name which came with datacage data-document. */
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115 public String getGaugeName() {
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116 return this.getDataAsString("ids");
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117 }
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118
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119
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120 /** Get the Gauges which came with datacage data-document. */
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121 public Gauge getGauge() {
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122 River river = FLYSUtils.getRiver(this);
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123 return river.determineGaugeByName(getGaugeName());
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124 }
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125
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126
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127 /**
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128 * Returns the data that is used to create discharge curves.
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129 * @return CalculationResult with WQKms.
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130 */
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131 public CalculationResult getDischargeCurveData() {
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132
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133 River river = FLYSUtils.getRiver(this);
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134 if (river == null) {
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135 return error(new WQKms[0], "no.river.selected");
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136 }
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137 /*
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138 // This one would allow to automatically pick the right Gauge.
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139 double [] distance = FLYSUtils.getKmRange(this);
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140 logger.debug("getDischargeCurveData: get range");
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141
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142 if (distance == null) {
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143 return error(new WQKms[0], "no.range.found");
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144 }
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145
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146 List<Gauge> gauges = river.determineGauges(distance[0], distance[1]);
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147 logger.debug("getDischargeCurveData: got " + gauges.size() + " gauges");
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148
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149 if (gauges.isEmpty()) {
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150 return error(new WQKms[0], "no.gauge.selected");
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151 }
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152
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153 String [] names = new String[gauges.size()];
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154
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155 for (int i = 0; i < names.length; ++i) {
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156 names[i] = gauges.get(i).getName();
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157 logger.debug("getDischargeCurveData: name " + names[i]);
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158 }
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159 */
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160
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161 DischargeTables dt = new DischargeTables(river.getName(), getDataAsString("ids"));
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162
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163 Map<String, double [][]> map = dt.getValues(100);
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164
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165 ArrayList<WQKms> res = new ArrayList<WQKms>();
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166
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167 Gauge gauge = river.determineGaugeByName(this.getDataAsString("ids"));
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168
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169 String name = getGaugeName();
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170 double [][] values = map.get(name);
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171 if (values == null) {
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172 logger.error("No values for this gauge / discharge found.");
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173 return error(new WQKms[0], "no.gauge.found");
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174 }
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175 for (int i = 0 ; i < values[0].length; i++) {
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176 values[0][i] += gauge.getDatum().doubleValue();
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177 }
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178 double [] kms = new double[values[0].length];
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179 Arrays.fill(kms, gauge.getStation().doubleValue());
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180 res.add(new WQKms(kms, values[0], values[1], name));
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181
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182 return new CalculationResult(
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183 res.toArray(new WQKms[res.size()]),
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184 new Calculation());
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185 }
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186 }
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187 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :

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