Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/state/timeseries/TimeSeriesVectorOutputState.java @ 1071:9bb1979aabbe

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Added a new output state and chart type for vertical profiles using vector data. gnv-artifacts/trunk@1168 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Mon, 07 Jun 2010 15:00:23 +0000
parents cc4ec127d666
children 1728aac87717
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.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[] RESULT_COLUMNS = {
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46 "YORDINATE", "XORDINATE", "GROUP1", "GROUP2", "GROUP3", "GAPID", "SERIES"
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47 };
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48
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49 public static final String[] ODV_COLUMN_HEADERS = {
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50 "Cruise",
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51 "Station",
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52 "Type",
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53 "yyyy-mm-dd hh:mm",
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54 "Lon (°E)",
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55 "Lat (°N)",
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56 "Bot. Depth [m]",
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57 "Depth [m]",
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58 "QF",
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59 "XComponent",
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60 "QF",
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61 "YComponent",
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62 "QF",
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63 "ZComponent",
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64 "QF",
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65 "Speed",
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66 "QF",
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67 "Direction",
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68 "QF"
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69 };
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70
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71 public static final String[] ODV_PROFILE_NAMES = {
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72 "CRUISE",
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73 "STATION",
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74 "TYPE",
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75 "TIMEVALUE",
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76 "SHAPE",
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77 "BOTDEPTH",
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78 "DEPTH",
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79 "QF",
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80 "XCOMPONENT",
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81 "QF",
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82 "YCOMPONENT",
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83 "QF",
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84 "ZCOMPONENT",
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85 "QF",
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86 "SPEED",
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87 "QF",
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88 "DIRECTION",
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89 "QF"};
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90
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91 public TimeSeriesVectorOutputState() {
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92 }
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93
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94
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95 @Override
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96 protected Object getChartResult(String uuid, CallContext callContext) {
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97 logger.debug("OutputStateBase.getChartResult");
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98 CacheFactory factory = CacheFactory.getInstance();
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99
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100 if (factory.isInitialized()) {
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101 // we use a cache
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102 logger.info("Using cache.");
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103 Cache cache = factory.getCache();
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104 String key = "chart_" + getHash();
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105
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106 net.sf.ehcache.Element value = cache.get(key);
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107 if (value != null) {
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108 logger.debug("Found element in cache.");
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109 return value.getObjectValue();
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110 }
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111 else {
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112 logger.debug("Element not in cache, we ask the database");
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113 Collection<Result> res = (Collection<Result>)getData(queryID);
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114 res = VectorDataProcessor.process(res, RESULT_COLUMNS);
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115 cache.put(new net.sf.ehcache.Element(key, res));
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116
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117 return res;
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118 }
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119 }
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120 else {
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121 // we don't use a cache, so we have to query the database every
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122 // single time
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123 logger.info("Not using a cache.");
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124 return VectorDataProcessor.process(
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125 getData(queryID), RESULT_COLUMNS);
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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 @Override
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131 protected Chart getChart(
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132 ChartLabels chartLables,
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133 ChartTheme theme,
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134 Collection parameters,
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135 Collection measurements,
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136 Collection dates,
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137 Object result,
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138 Locale locale,
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139 String uuid,
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140 boolean linesVisible,
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141 boolean shapesVisible,
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142 CallContext callContext
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143 ) {
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144 Chart chart = new TimeSeriesVectorChart(
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145 chartLables,
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146 theme,
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147 parameters,
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148 measurements,
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149 dates,
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150 (Collection)result,
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151 timeGapDefinitions,
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152 locale,
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153 linesVisible,
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154 shapesVisible
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155 );
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156 chart.generateChart();
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157
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158 return chart;
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159 }
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160
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161
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162 @Override
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163 protected void createODV(
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164 OutputStream outputStream, Collection result, String uuid)
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165 throws IOException, StateException
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166 {
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167 logger.info("Start exporting " + result.size() + " items to odv.");
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168 Export export = new DefaultExport(
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169 new SimpleOdvDataCollector(ODV_PROFILE_NAMES));
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170
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171 Profile profile = new DefaultProfile(
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172 ODV_COLUMN_HEADERS,
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173 '\t',
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174 CSVWriter.NO_QUOTE_CHARACTER,
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175 CSVWriter.NO_ESCAPE_CHARACTER,
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176 "ODV",
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177 "ISO-8859-1");
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178
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179 export.create(profile, outputStream, result);
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180 }
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181 }
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182 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org