Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/state/timeseries/TimeSeriesVectorOutputState.java @ 1081:846b2b70b2e0

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Implemented histogram creation for vectorial timeseries. gnv-artifacts/trunk@1183 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 09 Jun 2010 09:51:05 +0000
parents 1728aac87717
children f953c9a559d8
rev   line source
1040
70653c29fc1d Finished vector support for timeseriespoints (Issue27).
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1 package de.intevation.gnv.state.timeseries;
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2
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3 import au.com.bytecode.opencsv.CSVWriter;
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4
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5 import de.intevation.artifacts.CallContext;
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6
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7 import de.intevation.gnv.artifacts.cache.CacheFactory;
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8
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9 import de.intevation.gnv.chart.Chart;
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10 import de.intevation.gnv.chart.ChartLabels;
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11 import de.intevation.gnv.chart.TimeSeriesVectorChart;
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12
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13 import de.intevation.gnv.exports.DefaultExport;
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14 import de.intevation.gnv.exports.DefaultProfile;
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15 import de.intevation.gnv.exports.Export;
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16 import de.intevation.gnv.exports.Export.Profile;
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17 import de.intevation.gnv.exports.SimpleOdvDataCollector;
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18
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19 import de.intevation.gnv.geobackend.base.Result;
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20
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21 import de.intevation.gnv.utils.VectorDataProcessor;
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22
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23 import de.intevation.gnv.state.describedata.KeyValueDescibeData;
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24 import de.intevation.gnv.state.exception.StateException;
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25
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26 import de.intevation.gnv.statistics.Statistics;
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27 import de.intevation.gnv.statistics.TimeseriesVectorStatistics;
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28
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29 import java.io.IOException;
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30 import java.io.OutputStream;
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31
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32 import java.util.Collection;
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33 import java.util.Locale;
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34 import java.util.Map;
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35
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36 import net.sf.ehcache.Cache;
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37
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38 import org.apache.log4j.Logger;
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39
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40 import org.jfree.chart.ChartTheme;
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41
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42 /**
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43 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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44 */
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45 public class TimeSeriesVectorOutputState extends TimeSeriesOutputState {
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46
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47 private static Logger logger =
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48 Logger.getLogger(TimeSeriesVectorOutputState.class);
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49
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50 public static final String[] RESULT_COLUMNS = {
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51 "YORDINATE", "XORDINATE", "GROUP1", "GROUP2", "GROUP3", "GAPID", "SERIES"
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52 };
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53
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54 public static final String[] ODV_COLUMN_HEADERS = {
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55 "Cruise",
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56 "Station",
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57 "Type",
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58 "yyyy-mm-dd hh:mm",
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59 "Lon (°E)",
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60 "Lat (°N)",
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61 "Bot. Depth [m]",
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62 "Depth [m]",
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63 "QF",
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64 "XComponent",
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65 "QF",
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66 "YComponent",
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67 "QF",
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68 "ZComponent",
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69 "QF",
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70 "Speed",
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71 "QF",
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72 "Direction",
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73 "QF"
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74 };
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75
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76 public static final String[] ODV_PROFILE_NAMES = {
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77 "CRUISE",
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78 "STATION",
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79 "TYPE",
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80 "TIMEVALUE",
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81 "SHAPE",
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82 "BOTDEPTH",
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83 "DEPTH",
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84 "QF",
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85 "XCOMPONENT",
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86 "QF",
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87 "YCOMPONENT",
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88 "QF",
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89 "ZCOMPONENT",
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90 "QF",
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91 "SPEED",
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92 "QF",
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93 "DIRECTION",
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94 "QF"};
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95
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96 public TimeSeriesVectorOutputState() {
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97 }
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98
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99
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100 @Override
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101 protected Object getChartResult(String uuid, CallContext callContext) {
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102 logger.debug("OutputStateBase.getChartResult");
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103 CacheFactory factory = CacheFactory.getInstance();
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104
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105 if (factory.isInitialized()) {
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106 // we use a cache
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107 logger.info("Using cache.");
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108 Cache cache = factory.getCache();
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109 String key = "chart_" + getHash();
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110
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111 net.sf.ehcache.Element value = cache.get(key);
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112 if (value != null) {
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113 logger.debug("Found element in cache.");
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114 return value.getObjectValue();
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115 }
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116 else {
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117 logger.debug("Element not in cache, we ask the database");
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118 Collection<Result> res = (Collection<Result>)getData(queryID);
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119 res = VectorDataProcessor.process(res, RESULT_COLUMNS);
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120 cache.put(new net.sf.ehcache.Element(key, res));
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121
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122 return res;
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123 }
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124 }
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125 else {
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126 // we don't use a cache, so we have to query the database every
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127 // single time
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128 logger.info("Not using a cache.");
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129 return VectorDataProcessor.process(
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130 getData(queryID), RESULT_COLUMNS);
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131 }
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132 }
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133
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134
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135 @Override
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136 protected Chart getChart(
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137 ChartLabels chartLables,
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138 ChartTheme theme,
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139 Collection parameters,
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140 Collection measurements,
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141 Collection dates,
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142 Object result,
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143 Locale locale,
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144 String uuid,
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145 boolean linesVisible,
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146 boolean shapesVisible,
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147 CallContext callContext
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148 ) {
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149 Chart chart = new TimeSeriesVectorChart(
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150 chartLables,
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151 theme,
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152 parameters,
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153 measurements,
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154 dates,
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155 (Collection)result,
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156 timeGapDefinitions,
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157 locale,
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158 linesVisible,
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159 shapesVisible
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160 );
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161 chart.generateChart();
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162
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163 return chart;
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164 }
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165
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166
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167 @Override
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168 protected Chart[] getHistograms(
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169 String uuid,
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170 CallContext callContext,
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171 Collection<KeyValueDescibeData> parameters,
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172 Collection<KeyValueDescibeData> measurements,
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173 Collection<KeyValueDescibeData> dates,
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174 Map requestParameter
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175 ) {
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176 Collection results = (Collection) getChartResult(uuid, callContext);
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177 ChartTheme theme = createStyle(callContext);
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178
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179 return VectorDataProcessor.getHistograms(
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180 uuid, callContext, results, theme, requestParameter);
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181 }
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182
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183
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184 @Override
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185 protected void createODV(
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186 OutputStream outputStream, Collection result, String uuid)
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187 throws IOException, StateException
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188 {
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189 logger.info("Start exporting " + result.size() + " items to odv.");
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190 Export export = new DefaultExport(
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191 new SimpleOdvDataCollector(ODV_PROFILE_NAMES));
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192
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193 Profile profile = new DefaultProfile(
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194 ODV_COLUMN_HEADERS,
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195 '\t',
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196 CSVWriter.NO_QUOTE_CHARACTER,
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197 CSVWriter.NO_ESCAPE_CHARACTER,
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198 "ODV",
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199 "ISO-8859-1");
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200
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201 export.create(profile, outputStream, result);
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202 }
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203
1728aac87717 Added statistics for vectorial timeseries.
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204
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205 protected Statistics getStatisticsGenerator() {
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206 return new TimeseriesVectorStatistics();
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207 }
1040
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208 }
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209 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org