Mercurial > dive4elements > gnv-client
annotate gnv-artifacts/src/main/java/de/intevation/gnv/state/profile/horizontalcrosssection/HorizontalCrossSectionMeshOutputState.java @ 471:06887e2e3f7a
Some minor code cleanup
gnv-artifacts/trunk@534 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Tue, 12 Jan 2010 17:41:59 +0000 |
parents | 7ba4c7222265 |
children | ab29e4ff2fda |
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1 /** |
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2 * |
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3 */ |
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4 package de.intevation.gnv.state.profile.horizontalcrosssection; |
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5 |
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6 import java.io.IOException; |
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7 import java.io.OutputStream; |
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8 import java.io.OutputStreamWriter; |
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9 import java.io.UnsupportedEncodingException; |
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10 import java.util.Arrays; |
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11 import java.util.Collection; |
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12 import java.util.Iterator; |
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13 import java.util.List; |
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14 import java.util.Locale; |
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15 |
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16 import org.apache.log4j.Logger; |
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17 |
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18 import org.jfree.chart.ChartTheme; |
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19 import org.w3c.dom.Node; |
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20 |
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21 import com.vividsolutions.jts.geom.Coordinate; |
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22 import com.vividsolutions.jts.geom.Envelope; |
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23 import com.vividsolutions.jts.geom.Polygon; |
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24 import com.vividsolutions.jts.io.ParseException; |
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25 import com.vividsolutions.jts.io.WKTReader; |
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26 |
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27 import au.com.bytecode.opencsv.CSVWriter; |
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28 import de.intevation.gnv.artifacts.cache.CacheFactory; |
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29 import de.intevation.gnv.artifacts.context.GNVArtifactContext; |
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30 import de.intevation.gnv.chart.Chart; |
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31 import de.intevation.gnv.chart.ChartLabels; |
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32 import de.intevation.gnv.geobackend.base.Result; |
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33 import de.intevation.gnv.geobackend.base.query.QueryExecutor; |
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34 import de.intevation.gnv.geobackend.base.query.QueryExecutorFactory; |
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35 import de.intevation.gnv.geobackend.base.query.exception.QueryException; |
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36 import de.intevation.gnv.state.InputData; |
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37 import de.intevation.gnv.state.exception.StateException; |
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38 import de.intevation.gnv.state.timeseries.TimeSeriesOutputState; |
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39 import de.intevation.gnv.statistics.Statistics; |
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40 import de.intevation.gnv.utils.StringUtils; |
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41 import de.intevation.gnv.utils.WKTUtils; |
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42 |
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43 import de.intevation.artifactdatabase.Config; |
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44 import de.intevation.artifacts.CallContext; |
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45 |
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46 /** |
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47 * @author Tim Englich <tim.englich@intevation.de> |
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48 * |
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49 */ |
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50 public class HorizontalCrossSectionMeshOutputState |
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51 extends TimeSeriesOutputState { |
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52 |
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53 private static Logger log = Logger |
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54 .getLogger(HorizontalCrossSectionMeshOutputState.class); |
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55 |
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56 /** |
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57 * The UID of this Class |
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58 */ |
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59 private static final long serialVersionUID = 3233620652465061860L; |
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60 |
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61 private String ijkQueryID = null; |
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62 |
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63 /** |
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64 * Constructor |
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65 */ |
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66 public HorizontalCrossSectionMeshOutputState() { |
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67 super(); |
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68 super.domainLable = "chart.horizontalcrosssection.title.xaxis"; |
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69 } |
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70 |
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71 @Override |
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72 protected Chart getChart( |
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73 ChartLabels chartLables, |
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74 ChartTheme theme, |
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75 Collection parameters, |
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76 Collection measurements, |
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77 Collection dates, |
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78 Object result, |
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79 Locale locale, |
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80 String uuid, |
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81 boolean linesVisible, |
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82 boolean shapesVisible, |
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83 CallContext callContext |
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84 ) { |
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85 Chart chart = null; |
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86 |
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87 if (CACHE_CHART) { |
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88 log.info("Try to get horizontalcrosssection chart from cache."); |
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89 chart = (Chart) getChartFromCache(uuid, callContext); |
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90 } |
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91 |
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92 if (chart != null) |
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93 return chart; |
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94 |
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95 log.info("Chart not in cache yet."); |
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96 |
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97 log.warn("This sort of chart is not implemented yet."); |
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98 /* TODO Implement a special chart for this sort of charts. |
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99 chart = new HorizontalProfileChart( |
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100 chartLables, |
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101 chartTheme, |
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102 parameters, |
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103 measurements, |
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104 result, |
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105 dates, |
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106 locale |
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107 ); |
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108 chart.generateChart(); |
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109 |
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110 if (CACHE_CHART) { |
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111 log.info("Put chart into cache."); |
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112 purifyChart(chart, uuid); |
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113 } |
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114 */ |
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115 |
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116 InputData meshPolygon = inputData.get("mesh_polygon"); |
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117 String meshPolygonWkt = null; |
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118 if (meshPolygon != null){ |
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119 meshPolygonWkt = meshPolygon.getValue(); |
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120 |
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121 } |
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122 log.debug("Used Polygon: "+meshPolygonWkt); |
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123 |
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124 return chart; |
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125 } |
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126 |
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127 /** |
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128 * @see de.intevation.gnv.state.OutputStateBase#getChartResult(java.lang.String, de.intevation.artifacts.CallContext) |
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129 */ |
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130 @Override |
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131 protected Object getChartResult(String uuid, CallContext callContext) { |
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132 log.debug("HorizontalProfileMeshCrossOutputState.getChartResult"); |
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133 Collection<Result> result = null; |
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134 if (CacheFactory.getInstance().isInitialized()) { |
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135 String key = uuid + super.getID(); |
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136 log.debug("Hash for Queryelements: " + key); |
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137 net.sf.ehcache.Element value = CacheFactory.getInstance().getCache().get(key); |
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138 if (value != null) { |
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139 result = (Collection<Result>) (value.getObjectValue()); |
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140 }else{ |
335
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141 |
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142 InputData meshPolygon = inputData.get("mesh_polygon"); |
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143 InputData meshId = inputData.get("meshid"); |
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144 |
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145 if (meshPolygon == null) { |
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146 log.error("mesh_polygon is not defined"); |
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147 throw new IllegalStateException("missing mesh_linestring"); |
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148 } |
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149 |
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150 if (meshId == null) { |
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151 log.error("meshid is not defined"); |
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152 throw new IllegalStateException("missing meshid"); |
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153 } |
471
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154 |
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155 Polygon p = WKTUtils.toPolygon(meshPolygon.getValue()); |
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156 |
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157 if (p == null) { |
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158 log.error("no valid polygon"); |
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159 throw new IllegalStateException("no valid polygon"); |
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160 } |
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161 |
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162 try { |
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163 Envelope env = p.getEnvelopeInternal(); |
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164 |
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165 Coordinate [] coords = new Coordinate [] { |
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166 new Coordinate(env.getMinX(), env.getMinY()), |
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167 new Coordinate(env.getMinX(), env.getMaxY()), |
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168 new Coordinate(env.getMaxX(), env.getMaxY()), |
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169 new Coordinate(env.getMaxX(), env.getMinY()) }; |
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170 |
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171 String additionWhere = |
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172 WKTUtils.worldEnvelopeCoordinatesToIndex( |
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173 coords, |
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174 result, |
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175 meshId.getValue(), |
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176 ijkQueryID); |
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177 |
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178 String[] addedFilterValues = StringUtils.append( |
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179 generateFilterValuesFromInputData(), |
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180 additionWhere); |
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181 |
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182 QueryExecutor queryExecutor = QueryExecutorFactory |
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183 .getInstance() |
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184 .getQueryExecutor(); |
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185 |
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186 result = process( |
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187 Arrays.asList(coords), |
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188 numSamples(callContext), |
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189 queryExecutor.executeQuery( |
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190 queryID, |
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191 addedFilterValues), |
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192 p); |
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193 } |
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194 catch (QueryException e) { |
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195 log.error(e,e); |
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196 } |
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197 |
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198 if (CacheFactory.getInstance().isInitialized()) { |
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199 CacheFactory.getInstance().getCache().put(new net.sf.ehcache.Element(key, result)); |
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200 } |
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201 } |
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202 } |
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203 return result; |
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204 } |
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205 |
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206 public static Collection<Result> process( |
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207 List<Coordinate> path, |
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208 int numSamples, |
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209 Collection<Result> input, |
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210 Polygon polygon |
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211 ) { |
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212 // TODO: IMPLEMENT ME INTEGRATE POLYGONCLIPPING |
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213 return null; |
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214 } |
335
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215 |
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216 /** |
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217 * @see de.intevation.gnv.state.timeseries.TimeSeriesOutputState#getStatisticsGenerator() |
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218 */ |
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219 @Override |
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220 protected Statistics getStatisticsGenerator() { |
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221 return null; //Statistics are not supported for this kind of OutputState. |
335
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222 } |
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223 |
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224 /** |
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225 * @see de.intevation.gnv.state.timeseries.TimeSeriesOutputState#createCSV(java.io.OutputStream, |
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226 * java.util.Collection) |
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227 */ |
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228 @Override |
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229 protected void createCSV(OutputStream outputStream, |
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230 Collection<Result> chartResult) |
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231 throws UnsupportedEncodingException, |
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232 IOException, |
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233 StateException { |
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234 if (chartResult != null) { |
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235 try { |
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236 CSVWriter writer = new CSVWriter(new OutputStreamWriter( |
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237 outputStream, "ISO-8859-1"), ','); |
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238 // USE THIS ENCODING BECAUSE OF |
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239 // PROBLEMS WITH EXCEL AND UTF-8 |
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240 Iterator<Result> it = chartResult.iterator(); |
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241 while (it.hasNext()) { |
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242 Result result = it.next(); |
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243 int i = 0; |
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244 String[] entries = new String[5]; |
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245 entries[i++] = result.getString("SHAPE"); |
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246 entries[i++] = result.getString("YORDINATE"); |
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247 entries[i++] = result.getString("IPOSITION"); |
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248 entries[i++] = result.getString("JPOSITION"); |
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249 entries[i++] = result.getString("KPOSITION"); |
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250 writer.writeNext(entries); |
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251 } |
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252 writer.close(); |
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253 } catch (Exception e) { |
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254 log.error(e,e); |
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255 throw new StateException( |
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256 "Exception occured while parsing an Point from WKT."); |
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257 } |
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258 } else { |
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259 log.error("No Data given for generating an CSV-File."); |
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260 throw new StateException( |
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261 "No Data given for generating an CSV-File."); |
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262 } |
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263 } |
468
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264 |
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265 /** |
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266 * @see de.intevation.gnv.state.timeseries.TimeSeriesOutputState#setup(org.w3c.dom.Node) |
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267 */ |
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268 @Override |
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269 public void setup(Node configuration) { |
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270 super.setup(configuration); |
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271 this.ijkQueryID = Config.getStringXPath(configuration,"queryID-ijk"); |
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272 |
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273 } |
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274 |
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275 private static int numSamples(CallContext callContext) { |
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276 GNVArtifactContext context = |
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277 (GNVArtifactContext)callContext.globalContext(); |
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278 Integer samples = (Integer)context.get( |
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279 GNVArtifactContext.HORIZONTAL_CROSS_SECTION_SAMPLES_KEY); |
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280 return samples != null |
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281 ? samples.intValue() |
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282 : GNVArtifactContext.DEFAULT_HORIZONTAL_CROSS_SECTION_SAMPLES; |
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283 } |
335
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284 |
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285 } |