Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/state/profile/horizontal/HorizontalProfileMeshVectorOutputState.java @ 1074:649f564a5184

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Implemented a new output state and chart type for horizontal profiles using vector data. gnv-artifacts/trunk@1174 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 08 Jun 2010 13:00:58 +0000
parents
children dc9727a67d41
rev   line source
1074
649f564a5184 Implemented a new output state and chart type for horizontal profiles using vector data.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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1 package de.intevation.gnv.state.profile.horizontal;
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2
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3 import de.intevation.artifacts.CallContext;
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4
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5 import de.intevation.gnv.artifacts.cache.CacheFactory;
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6
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7 import de.intevation.gnv.chart.Chart;
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8 import de.intevation.gnv.chart.ChartLabels;
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9 import de.intevation.gnv.chart.HorizontalProfileVectorChart;
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10
649f564a5184 Implemented a new output state and chart type for horizontal profiles using vector data.
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11 import de.intevation.gnv.geobackend.base.Result;
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12
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13 import de.intevation.gnv.utils.VectorDataProcessor;
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14
649f564a5184 Implemented a new output state and chart type for horizontal profiles using vector data.
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15 import java.util.Collection;
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16 import java.util.Locale;
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17
649f564a5184 Implemented a new output state and chart type for horizontal profiles using vector data.
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18 import net.sf.ehcache.Cache;
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19
649f564a5184 Implemented a new output state and chart type for horizontal profiles using vector data.
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20 import org.apache.log4j.Logger;
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21
649f564a5184 Implemented a new output state and chart type for horizontal profiles using vector data.
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22 import org.jfree.chart.ChartTheme;
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23
649f564a5184 Implemented a new output state and chart type for horizontal profiles using vector data.
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24
649f564a5184 Implemented a new output state and chart type for horizontal profiles using vector data.
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25 /**
649f564a5184 Implemented a new output state and chart type for horizontal profiles using vector data.
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26 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
649f564a5184 Implemented a new output state and chart type for horizontal profiles using vector data.
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27 */
649f564a5184 Implemented a new output state and chart type for horizontal profiles using vector data.
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28 public class HorizontalProfileMeshVectorOutputState
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29 extends HorizontalProfileMeshOutputState
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30 {
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31 private static Logger logger =
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32 Logger.getLogger(HorizontalProfileMeshVectorOutputState.class);
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33
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34 public static final String[] RESULT_COLUMNS = {
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35 "YORDINATE", "SHAPE",
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36 "GROUP1", "GROUP2", "GROUP3",
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37 "IPOSITION", "JPOSITION",
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38 "DATAID", "MESHID",
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39 "SERIES"
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40 };
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41
649f564a5184 Implemented a new output state and chart type for horizontal profiles using vector data.
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42
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43 @Override
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44 protected Object getChartResult(String uuid, CallContext callContext) {
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45 logger.debug("Fetch data for horizontalprofile chart with vector data");
649f564a5184 Implemented a new output state and chart type for horizontal profiles using vector data.
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46 CacheFactory factory = CacheFactory.getInstance();
649f564a5184 Implemented a new output state and chart type for horizontal profiles using vector data.
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47
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48 if (factory.isInitialized()) {
649f564a5184 Implemented a new output state and chart type for horizontal profiles using vector data.
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49 // we use a cache
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50 logger.info("Using cache.");
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51 Cache cache = factory.getCache();
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52 String key = "chart_" + getHash();
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53
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54 net.sf.ehcache.Element value = cache.get(key);
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55 if (value != null) {
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56 logger.debug("Found element in cache.");
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57 return value.getObjectValue();
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58 }
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59 else {
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60 logger.debug("Element not in cache, we ask the database");
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61 Collection<Result> res = (Collection<Result>)getData(queryID);
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62 res = VectorDataProcessor.process(res, RESULT_COLUMNS);
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63 logger.debug("Got " + res.size() + " elements from database.");
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64
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65 cache.put(new net.sf.ehcache.Element(key, res));
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66
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67 return res;
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68 }
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69 }
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70 else {
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71 // we don't use a cache, so we have to query the database every
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72 // single time
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73 logger.info("Not using a cache.");
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74 return VectorDataProcessor.process(
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75 getData(queryID), RESULT_COLUMNS);
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76 }
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77 }
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78
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79
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80 @Override
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81 protected Chart getChart(
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82 ChartLabels chartLables,
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83 ChartTheme theme,
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84 Collection parameters,
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85 Collection measurements,
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86 Collection dates,
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87 Object result,
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88 Locale locale,
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89 String uuid,
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90 boolean linesVisible,
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91 boolean shapesVisible,
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92 CallContext callContext
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93 ) {
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94 Chart chart = new HorizontalProfileVectorChart(
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95 chartLables,
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96 theme,
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97 parameters,
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98 measurements,
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99 dates,
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100 (Collection)result,
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101 timeGapDefinitions,
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102 locale,
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103 linesVisible,
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104 shapesVisible
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105 );
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106 chart.generateChart();
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107
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108 return chart;
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109 }
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110 }
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111 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org