Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/ComputationRangeState.java @ 2072:4cdd9c4896f6

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#393 Added a new Renderer and Options in Themes that allow displaying minimum and maximum of a chart series. flys-artifacts/trunk@3581 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 04 Jan 2012 12:24:35 +0000
parents 9144e5a5027b
children e8fc770d2f8c
rev   line source
921
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1 package de.intevation.flys.artifacts.states;
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2
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3 import java.util.Date;
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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 org.w3c.dom.Element;
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9
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10 import de.intevation.artifacts.Artifact;
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11 import de.intevation.artifacts.CallContext;
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12
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13 import de.intevation.artifacts.common.utils.XMLUtils;
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14
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15 import de.intevation.artifactdatabase.ProtocolUtils;
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16 import de.intevation.artifactdatabase.data.StateData;
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17 import de.intevation.artifactdatabase.state.Facet;
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18
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19 import de.intevation.flys.model.DischargeTable;
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20 import de.intevation.flys.model.Gauge;
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21 import de.intevation.flys.model.River;
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22 import de.intevation.flys.model.TimeInterval;
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23
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24 import de.intevation.flys.artifacts.FLYSArtifact;
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25 import de.intevation.flys.artifacts.WINFOArtifact;
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26 import de.intevation.flys.artifacts.model.CalculationResult;
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27 import de.intevation.flys.artifacts.model.FacetTypes;
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28 import de.intevation.flys.artifacts.model.GaugesFactory;
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29 import de.intevation.flys.artifacts.model.RiverFactory;
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30 import de.intevation.flys.artifacts.model.WaterlevelFacet;
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31 import de.intevation.flys.artifacts.model.WQKms;
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32 import de.intevation.flys.artifacts.resources.Resources;
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33
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34 /**
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35 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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36 */
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37 public class ComputationRangeState
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38 extends RangeState
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39 implements FacetTypes
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40 {
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41 private static Logger logger =
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42 Logger.getLogger(ComputationRangeState.class);
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43
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44 /** The name of the 'from' field. */
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45 public static final String FROM = "ld_from";
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46
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47 /** The name of the 'to' field. */
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48 public static final String TO = "ld_to";
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49
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50 /** The name of the 'step' field. */
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51 public static final String STEP = "ld_step";
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52
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53 /** The default step width. */
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54 public static final int DEFAULT_STEP = 100;
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55
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56
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57 public ComputationRangeState() {
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58 }
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59
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60
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61 @Override
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62 protected Element createData(
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63 XMLUtils.ElementCreator cr,
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64 Artifact artifact,
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65 StateData data,
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66 CallContext context)
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67 {
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68 Element select = ProtocolUtils.createArtNode(
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69 cr, "select", null, null);
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70
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71 cr.addAttr(select, "name", data.getName(), true);
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72
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73 Element label = ProtocolUtils.createArtNode(
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74 cr, "label", null, null);
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75
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76 Element choices = ProtocolUtils.createArtNode(
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77 cr, "choices", null, null);
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78
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79 label.setTextContent(Resources.getMsg(
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80 context.getMeta(),
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81 data.getName(),
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82 data.getName()));
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83
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84 select.appendChild(label);
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85
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86 return select;
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87 }
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89
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90 @Override
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91 protected Element[] createItems(
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92 XMLUtils.ElementCreator cr,
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93 Artifact artifact,
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94 String name,
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95 CallContext context)
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96 {
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97 double[] minmax = getMinMax(artifact);
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98
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99 double minVal = Double.MIN_VALUE;
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100 double maxVal = Double.MAX_VALUE;
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101
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102 if (minmax != null) {
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103 minVal = minmax[0];
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104 maxVal = minmax[1];
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105 }
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106 else {
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107 logger.warn("Could not read min/max distance values!");
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108 }
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109
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110 if (name.equals("ld_from")) {
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111 Element min = createItem(
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112 cr,
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113 new String[] {"min", new Double(minVal).toString()});
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114
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115 return new Element[] { min };
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116 }
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117 else if (name.equals("ld_to")) {
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118 Element max = createItem(
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119 cr,
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120 new String[] {"max", new Double(maxVal).toString()});
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121
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122 return new Element[] { max };
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123 }
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124 else {
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125 Element step = createItem(
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126 cr,
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127 new String[] {"step", String.valueOf(getDefaultStep())});
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128 return new Element[] { step };
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129 }
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130
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131 }
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132
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133
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134 protected Element createItem(XMLUtils.ElementCreator cr, Object obj) {
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135 Element item = ProtocolUtils.createArtNode(cr, "item", null, null);
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136 Element label = ProtocolUtils.createArtNode(cr, "label", null, null);
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137 Element value = ProtocolUtils.createArtNode(cr, "value", null, null);
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138
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139 String[] arr = (String[]) obj;
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140
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141 label.setTextContent(arr[0]);
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142 value.setTextContent(arr[1]);
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143
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144 item.appendChild(label);
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145 item.appendChild(value);
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146
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147 return item;
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148 }
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149
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150
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151 @Override
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152 public Object computeFeed(
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153 FLYSArtifact artifact,
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154 String hash,
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155 CallContext context,
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156 List<Facet> facets,
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157 Object old
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158 ) {
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159 logger.debug("computeFeed");
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160
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161 WINFOArtifact winfo = (WINFOArtifact)artifact;
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162
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163 CalculationResult res = old instanceof CalculationResult
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164 ? (CalculationResult)old
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165 : winfo.getDischargeCurveData();
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166
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167 if (facets == null) {
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168 logger.debug("generate no facets");
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169 return res;
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170 }
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171
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172 WQKms [] wqkms = (WQKms [])res.getData();
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173
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174 logger.debug("generate " + wqkms.length + " facets.");
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175
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176 String stateID = winfo.getCurrentStateId();
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177
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178 for (int i = 0; i < wqkms.length; ++i) {
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179 String name = getSeriesName(context, wqkms[i].getName());
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180 facets.add(new WaterlevelFacet(
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181 i, DISCHARGE_CURVE, name, ComputeType.FEED, stateID, hash));
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182 }
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183
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184
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185 return res;
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186 }
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187
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188 protected String getSeriesName(CallContext cc, String gaugeName) {
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189 Gauge gauge = GaugesFactory.getGauge(gaugeName);
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190
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191 if (gauge == null) {
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192 logger.warn("Cannot determine Gauge for name: " + gaugeName);
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193 return gaugeName;
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194 }
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195
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196 List<DischargeTable> dts = gauge.getDischargeTables();
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197
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198 for (DischargeTable dt: dts) {
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199 if (dt.getKind() == 0) {
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200 TimeInterval ti = dt.getTimeInterval();
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201
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202 Date start = ti.getStartTime();
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203 Date end = ti.getStopTime();
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204
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205 String name = gauge.getName();
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206
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207 if (end == null) {
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208 Object[] args = new Object[] { name, start };
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209 return Resources.getMsg(
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210 cc.getMeta(),
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211 "chart.discharge.curve.curve.valid.from",
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212 "",
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213 args);
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214 }
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215 else {
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216 Object[] args = new Object[] { name, start, end };
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217 return Resources.getMsg(
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218 cc.getMeta(),
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219 "chart.discharge.curve.curve.valid.range",
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220 "",
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221 args);
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222 }
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223 }
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224 }
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225
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226 return gauge.getName();
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227 }
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228
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229
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230 @Override
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231 protected double[] getMinMax(Artifact artifact) {
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232 FLYSArtifact flysArtifact = (FLYSArtifact) artifact;
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233 StateData data = getData(flysArtifact, "river");
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234
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235 String name = data != null ? (String) data.getValue() : "";
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236
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237 logger.debug("Search for the min/max distances of '" + name + "'");
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238
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239 River river = RiverFactory.getRiver(name);
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240
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241 return river != null ? river.determineMinMaxDistance() : null;
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242 }
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243
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244
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245 protected double getDefaultStep() {
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246 return DEFAULT_STEP;
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247 }
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248
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249
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250 @Override
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251 protected String getLowerField() {
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252 return FROM;
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253 }
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254
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255
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256 @Override
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257 protected String getUpperField() {
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258 return TO;
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259 }
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260
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261
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262 @Override
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263 protected String getStepField() {
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264 return STEP;
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265 }
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266 }
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267 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org