Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/ComputationRangeState.java @ 1079:ef756e166154

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Improved implementation of MainValueArtifact#MainValueFacet . flys-artifacts/trunk@2576 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Thu, 25 Aug 2011 10:42:23 +0000
parents 610d0e0f4f85
children 022f62c75878
rev   line source
921
610d0e0f4f85 #159 Modifications in the transition model to support a state with a kilometer range input only.
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1 package de.intevation.flys.artifacts.states;
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2
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3 import java.util.List;
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4
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5 import org.apache.log4j.Logger;
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6
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7 import org.w3c.dom.Element;
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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.artifacts.common.utils.XMLUtils;
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13
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14 import de.intevation.artifactdatabase.ProtocolUtils;
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15 import de.intevation.artifactdatabase.data.StateData;
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16 import de.intevation.artifactdatabase.state.Facet;
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17
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18 import de.intevation.flys.model.River;
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19
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20 import de.intevation.flys.artifacts.FLYSArtifact;
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21 import de.intevation.flys.artifacts.WINFOArtifact;
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22 import de.intevation.flys.artifacts.model.CalculationResult;
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23 import de.intevation.flys.artifacts.model.FacetTypes;
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24 import de.intevation.flys.artifacts.model.RiverFactory;
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25 import de.intevation.flys.artifacts.model.WaterlevelFacet;
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26 import de.intevation.flys.artifacts.model.WQKms;
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27 import de.intevation.flys.artifacts.resources.Resources;
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28
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29 /**
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30 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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31 */
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32 public class ComputationRangeState
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33 extends RangeState
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34 implements FacetTypes
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35 {
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36 private static Logger logger =
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37 Logger.getLogger(ComputationRangeState.class);
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38
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39
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40 /** The name of the 'from' field. */
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41 public static final String FROM = "ld_from";
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42
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43 /** The name of the 'to' field. */
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44 public static final String TO = "ld_to";
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45
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46 /** The name of the 'step' field. */
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47 public static final String STEP = "ld_step";
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48
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49 /** The default step width.*/
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50 public static final int DEFAULT_STEP = 100;
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51
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52
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53
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54 public ComputationRangeState() {
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55 }
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56
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57
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58 @Override
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59 protected Element createData(
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60 XMLUtils.ElementCreator cr,
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61 Artifact artifact,
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62 StateData data,
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63 CallContext context)
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64 {
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65 Element select = ProtocolUtils.createArtNode(
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66 cr, "select", null, null);
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67
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68 cr.addAttr(select, "name", data.getName(), true);
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69
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70 Element label = ProtocolUtils.createArtNode(
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71 cr, "label", null, null);
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72
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73 Element choices = ProtocolUtils.createArtNode(
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74 cr, "choices", null, null);
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75
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76 label.setTextContent(Resources.getMsg(
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77 context.getMeta(),
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78 data.getName(),
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79 data.getName()));
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80
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81 select.appendChild(label);
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82
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83 return select;
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84 }
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85
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86
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87 @Override
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88 protected Element[] createItems(
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89 XMLUtils.ElementCreator cr,
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90 Artifact artifact,
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91 String name,
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92 CallContext context)
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93 {
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94 double[] minmax = getMinMax(artifact);
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95
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96 double minVal = Double.MIN_VALUE;
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97 double maxVal = Double.MAX_VALUE;
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98
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99 if (minmax != null) {
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100 minVal = minmax[0];
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101 maxVal = minmax[1];
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102 }
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103 else {
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104 logger.warn("Could not read min/max distance values!");
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105 }
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106
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107 if (name.equals("ld_from")) {
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108 Element min = createItem(
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109 cr,
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110 new String[] {"min", new Double(minVal).toString()});
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111
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112 return new Element[] { min };
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113 }
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114 else if (name.equals("ld_to")) {
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115 Element max = createItem(
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116 cr,
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117 new String[] {"max", new Double(maxVal).toString()});
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118
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119 return new Element[] { max };
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120 }
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121 else {
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122 Element step = createItem(
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123 cr,
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124 new String[] {"step", String.valueOf(getDefaultStep())});
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125 return new Element[] { step };
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126 }
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127
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128 }
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129
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130
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131 protected Element createItem(XMLUtils.ElementCreator cr, Object obj) {
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132 Element item = ProtocolUtils.createArtNode(cr, "item", null, null);
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133 Element label = ProtocolUtils.createArtNode(cr, "label", null, null);
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134 Element value = ProtocolUtils.createArtNode(cr, "value", null, null);
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135
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136 String[] arr = (String[]) obj;
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137
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138 label.setTextContent(arr[0]);
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139 value.setTextContent(arr[1]);
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140
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141 item.appendChild(label);
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142 item.appendChild(value);
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143
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144 return item;
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145 }
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146
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147
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148 @Override
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149 public Object computeFeed(
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150 FLYSArtifact artifact,
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151 String hash,
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152 CallContext context,
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153 List<Facet> facets,
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154 Object old
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155 ) {
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156 logger.debug("computeFeed");
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157
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158 WINFOArtifact winfo = (WINFOArtifact)artifact;
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159
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160 CalculationResult res = old instanceof CalculationResult
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161 ? (CalculationResult)old
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162 : winfo.getDischargeCurveData();
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163
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164 if (facets == null) {
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165 logger.debug("generate no facets");
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166 return res;
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167 }
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168
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169 WQKms [] wqkms = (WQKms [])res.getData();
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170
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171 logger.debug("generate " + wqkms.length + " facets.");
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172
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173 String stateID = winfo.getCurrentStateId();
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174
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175 for (int i = 0; i < wqkms.length; ++i) {
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176 String name = wqkms[i].getName();
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177 facets.add(new WaterlevelFacet(
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178 i, DISCHARGE_CURVE, name, ComputeType.FEED, stateID, hash));
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179 }
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180
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181
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182 return res;
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183 }
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184
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185
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186 @Override
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187 protected double[] getMinMax(Artifact artifact) {
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188 FLYSArtifact flysArtifact = (FLYSArtifact) artifact;
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189 StateData data = getData(flysArtifact, "river");
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190
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191 String name = data != null ? (String) data.getValue() : "";
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192
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193 logger.debug("Search for the min/max distances of '" + name + "'");
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194
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195 River river = RiverFactory.getRiver(name);
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196
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197 return river != null ? river.determineMinMaxDistance() : null;
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198 }
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199
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200
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201 protected double getDefaultStep() {
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202 return DEFAULT_STEP;
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203 }
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204
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205
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206 @Override
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207 protected String getLowerField() {
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208 return FROM;
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209 }
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210
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211
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212 @Override
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213 protected String getUpperField() {
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214 return TO;
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215 }
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216
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217
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218 @Override
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219 protected String getStepField() {
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220 return STEP;
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221 }
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222 }
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223 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org