Mercurial > dive4elements > gnv-client
comparison 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> |
|---|---|
| date | Tue, 08 Jun 2010 13:00:58 +0000 |
| parents | |
| children | dc9727a67d41 |
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| 1073:902bcd837995 | 1074:649f564a5184 |
|---|---|
| 1 package de.intevation.gnv.state.profile.horizontal; | |
| 2 | |
| 3 import de.intevation.artifacts.CallContext; | |
| 4 | |
| 5 import de.intevation.gnv.artifacts.cache.CacheFactory; | |
| 6 | |
| 7 import de.intevation.gnv.chart.Chart; | |
| 8 import de.intevation.gnv.chart.ChartLabels; | |
| 9 import de.intevation.gnv.chart.HorizontalProfileVectorChart; | |
| 10 | |
| 11 import de.intevation.gnv.geobackend.base.Result; | |
| 12 | |
| 13 import de.intevation.gnv.utils.VectorDataProcessor; | |
| 14 | |
| 15 import java.util.Collection; | |
| 16 import java.util.Locale; | |
| 17 | |
| 18 import net.sf.ehcache.Cache; | |
| 19 | |
| 20 import org.apache.log4j.Logger; | |
| 21 | |
| 22 import org.jfree.chart.ChartTheme; | |
| 23 | |
| 24 | |
| 25 /** | |
| 26 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> | |
| 27 */ | |
| 28 public class HorizontalProfileMeshVectorOutputState | |
| 29 extends HorizontalProfileMeshOutputState | |
| 30 { | |
| 31 private static Logger logger = | |
| 32 Logger.getLogger(HorizontalProfileMeshVectorOutputState.class); | |
| 33 | |
| 34 public static final String[] RESULT_COLUMNS = { | |
| 35 "YORDINATE", "SHAPE", | |
| 36 "GROUP1", "GROUP2", "GROUP3", | |
| 37 "IPOSITION", "JPOSITION", | |
| 38 "DATAID", "MESHID", | |
| 39 "SERIES" | |
| 40 }; | |
| 41 | |
| 42 | |
| 43 @Override | |
| 44 protected Object getChartResult(String uuid, CallContext callContext) { | |
| 45 logger.debug("Fetch data for horizontalprofile chart with vector data"); | |
| 46 CacheFactory factory = CacheFactory.getInstance(); | |
| 47 | |
| 48 if (factory.isInitialized()) { | |
| 49 // we use a cache | |
| 50 logger.info("Using cache."); | |
| 51 Cache cache = factory.getCache(); | |
| 52 String key = "chart_" + getHash(); | |
| 53 | |
| 54 net.sf.ehcache.Element value = cache.get(key); | |
| 55 if (value != null) { | |
| 56 logger.debug("Found element in cache."); | |
| 57 return value.getObjectValue(); | |
| 58 } | |
| 59 else { | |
| 60 logger.debug("Element not in cache, we ask the database"); | |
| 61 Collection<Result> res = (Collection<Result>)getData(queryID); | |
| 62 res = VectorDataProcessor.process(res, RESULT_COLUMNS); | |
| 63 logger.debug("Got " + res.size() + " elements from database."); | |
| 64 | |
| 65 cache.put(new net.sf.ehcache.Element(key, res)); | |
| 66 | |
| 67 return res; | |
| 68 } | |
| 69 } | |
| 70 else { | |
| 71 // we don't use a cache, so we have to query the database every | |
| 72 // single time | |
| 73 logger.info("Not using a cache."); | |
| 74 return VectorDataProcessor.process( | |
| 75 getData(queryID), RESULT_COLUMNS); | |
| 76 } | |
| 77 } | |
| 78 | |
| 79 | |
| 80 @Override | |
| 81 protected Chart getChart( | |
| 82 ChartLabels chartLables, | |
| 83 ChartTheme theme, | |
| 84 Collection parameters, | |
| 85 Collection measurements, | |
| 86 Collection dates, | |
| 87 Object result, | |
| 88 Locale locale, | |
| 89 String uuid, | |
| 90 boolean linesVisible, | |
| 91 boolean shapesVisible, | |
| 92 CallContext callContext | |
| 93 ) { | |
| 94 Chart chart = new HorizontalProfileVectorChart( | |
| 95 chartLables, | |
| 96 theme, | |
| 97 parameters, | |
| 98 measurements, | |
| 99 dates, | |
| 100 (Collection)result, | |
| 101 timeGapDefinitions, | |
| 102 locale, | |
| 103 linesVisible, | |
| 104 shapesVisible | |
| 105 ); | |
| 106 chart.generateChart(); | |
| 107 | |
| 108 return chart; | |
| 109 } | |
| 110 } | |
| 111 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |