Mercurial > dive4elements > gnv-client
annotate gnv-artifacts/src/main/java/de/intevation/gnv/state/profile/horizontal/HorizontalProfileMeshVectorOutputState.java @ 1074:649f564a5184
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> |
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date | Tue, 08 Jun 2010 13:00:58 +0000 |
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children | dc9727a67d41 |
rev | line source |
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1074
649f564a5184
Implemented a new output state and chart type for horizontal profiles using vector data.
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parents:
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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 |
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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 |
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15 import java.util.Collection; |
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16 import java.util.Locale; |
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17 |
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18 import net.sf.ehcache.Cache; |
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19 |
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20 import org.apache.log4j.Logger; |
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21 |
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22 import org.jfree.chart.ChartTheme; |
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23 |
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24 |
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25 /** |
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26 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> |
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27 */ |
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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 |
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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"); |
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46 CacheFactory factory = CacheFactory.getInstance(); |
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47 |
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48 if (factory.isInitialized()) { |
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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 : |