Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/state/timeseries/TimeSeriesVectorOutputState.java @ 1041:8a8ee5abc084

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Implemented the odv export for timeseries using vector data (Issue27). gnv-artifacts/trunk@1113 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Thu, 20 May 2010 09:47:19 +0000
parents 70653c29fc1d
children cc4ec127d666
rev   line source
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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.exception.StateException;
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24
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25 import java.io.IOException;
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26 import java.io.OutputStream;
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27
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28 import java.util.Collection;
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29 import java.util.Locale;
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30
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31 import net.sf.ehcache.Cache;
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32
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33 import org.apache.log4j.Logger;
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34
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35 import org.jfree.chart.ChartTheme;
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36
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37 /**
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38 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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39 */
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40 public class TimeSeriesVectorOutputState extends TimeSeriesOutputState {
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41
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42 private static Logger logger =
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43 Logger.getLogger(TimeSeriesVectorOutputState.class);
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44
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45 public static final String[] ODV_COLUMN_HEADERS = {
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46 "Cruise",
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47 "Station",
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48 "Type",
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49 "yyyy-mm-dd hh:mm",
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50 "Lon (°E)",
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51 "Lat (°N)",
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52 "Bot. Depth [m]",
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53 "Depth [m]",
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54 "QF",
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55 "XComponent",
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56 "QF",
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57 "YComponent",
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58 "QF",
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59 "ZComponent",
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60 "QF",
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61 "Speed",
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62 "QF",
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63 "Direction",
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64 "QF"
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65 };
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66
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67 public static final String[] ODV_PROFILE_NAMES = {
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68 "CRUISE",
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69 "STATION",
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70 "TYPE",
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71 "TIMEVALUE",
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72 "SHAPE",
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73 "BOTDEPTH",
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74 "DEPTH",
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75 "QF",
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76 "XCOMPONENT",
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77 "QF",
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78 "YCOMPONENT",
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79 "QF",
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80 "ZCOMPONENT",
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81 "QF",
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82 "SPEED",
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83 "QF",
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84 "DIRECTION",
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85 "QF"};
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86
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87 public TimeSeriesVectorOutputState() {
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88 }
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89
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90
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91 @Override
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92 protected Object getChartResult(String uuid, CallContext callContext) {
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93 logger.debug("OutputStateBase.getChartResult");
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94 CacheFactory factory = CacheFactory.getInstance();
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95
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96 if (factory.isInitialized()) {
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97 // we use a cache
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98 logger.info("Using cache.");
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99 Cache cache = factory.getCache();
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100 String key = "chart_" + getHash(uuid);
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101
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102 net.sf.ehcache.Element value = cache.get(key);
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103 if (value != null) {
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104 logger.debug("Found element in cache.");
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105 return value.getObjectValue();
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106 }
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107 else {
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108 logger.debug("Element not in cache, we ask the database");
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109 Collection<Result> res = (Collection<Result>)getData(queryID);
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110 res = VectorDataProcessor.process(res);
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111 cache.put(new net.sf.ehcache.Element(key, res));
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112
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113 return res;
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114 }
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115 }
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116 else {
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117 // we don't use a cache, so we have to query the database every
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118 // single time
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119 logger.info("Not using a cache.");
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120 return VectorDataProcessor.process(getData(queryID));
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121 }
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122 }
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123
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124
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125 @Override
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126 protected Chart getChart(
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127 ChartLabels chartLables,
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128 ChartTheme theme,
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129 Collection parameters,
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130 Collection measurements,
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131 Collection dates,
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132 Object result,
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133 Locale locale,
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134 String uuid,
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135 boolean linesVisible,
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136 boolean shapesVisible,
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137 CallContext callContext
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138 ) {
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139 Chart chart = new TimeSeriesVectorChart(
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140 chartLables,
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141 theme,
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142 parameters,
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143 measurements,
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144 dates,
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145 (Collection)result,
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146 timeGapDefinitions,
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147 locale,
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148 linesVisible,
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149 shapesVisible
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150 );
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151 chart.generateChart();
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152
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153 return chart;
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154 }
1041
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155
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156
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157 @Override
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158 protected void createODV(
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159 OutputStream outputStream, Collection result, String uuid)
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160 throws IOException, StateException
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161 {
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162 logger.info("Start exporting " + result.size() + " items to odv.");
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163 Export export = new DefaultExport(
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164 new SimpleOdvDataCollector(ODV_PROFILE_NAMES));
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165
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166 Profile profile = new DefaultProfile(
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167 ODV_COLUMN_HEADERS,
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168 '\t',
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169 CSVWriter.NO_QUOTE_CHARACTER,
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170 CSVWriter.NO_ESCAPE_CHARACTER,
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171 "ODV",
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172 "ISO-8859-1");
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173
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174 export.create(profile, outputStream, result);
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175 }
1040
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176 }
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177 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org