Mercurial > dive4elements > gnv-client
comparison gnv-artifacts/src/main/java/de/intevation/gnv/state/profile/vertical/VerticalProfileMeshVectorOutputState.java @ 1072:6f35dcd81418
Added an output state for verticalprofiles with vector charts on meshes.
gnv-artifacts/trunk@1169 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
|---|---|
| date | Mon, 07 Jun 2010 17:11:48 +0000 |
| parents | |
| children | f953c9a559d8 |
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| 1071:9bb1979aabbe | 1072:6f35dcd81418 |
|---|---|
| 1 package de.intevation.gnv.state.profile.vertical; | |
| 2 | |
| 3 import de.intevation.artifacts.CallContext; | |
| 4 | |
| 5 import de.intevation.gnv.artifacts.cache.CacheFactory; | |
| 6 | |
| 7 import de.intevation.gnv.geobackend.base.Result; | |
| 8 | |
| 9 import de.intevation.gnv.utils.VectorDataProcessor; | |
| 10 | |
| 11 import java.util.Collection; | |
| 12 | |
| 13 import net.sf.ehcache.Cache; | |
| 14 | |
| 15 import org.apache.log4j.Logger; | |
| 16 | |
| 17 | |
| 18 /** | |
| 19 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> | |
| 20 */ | |
| 21 public class VerticalProfileMeshVectorOutputState | |
| 22 extends VerticalProfileVectorOutputState | |
| 23 { | |
| 24 public static final String[] RESULT_COLUMNS = { | |
| 25 "YORDINATE", "XORDINATE", "KPOSITION", | |
| 26 "GROUP1", "GROUP2", "GROUP3", | |
| 27 "DATAID", "FEATUREID", "MESHID", | |
| 28 "SERIES" | |
| 29 }; | |
| 30 | |
| 31 private static Logger logger = | |
| 32 Logger.getLogger(VerticalProfileMeshVectorOutputState.class); | |
| 33 | |
| 34 | |
| 35 @Override | |
| 36 protected Object getChartResult(String uuid, CallContext callContext) { | |
| 37 logger.debug("Fetch chart data for vertical profile with vector data."); | |
| 38 CacheFactory factory = CacheFactory.getInstance(); | |
| 39 | |
| 40 if (factory.isInitialized()) { | |
| 41 // we use a cache | |
| 42 logger.info("Using cache."); | |
| 43 Cache cache = factory.getCache(); | |
| 44 String key = "chart_" + getHash(); | |
| 45 | |
| 46 net.sf.ehcache.Element value = cache.get(key); | |
| 47 if (value != null) { | |
| 48 logger.debug("Found element in cache."); | |
| 49 return value.getObjectValue(); | |
| 50 } | |
| 51 else { | |
| 52 logger.debug("Element not in cache, we ask the database"); | |
| 53 Collection<Result> res = (Collection<Result>)getData(queryID); | |
| 54 logger.debug("Got " + res.size() + " elements from db."); | |
| 55 | |
| 56 res = VectorDataProcessor.process(res, RESULT_COLUMNS); | |
| 57 cache.put(new net.sf.ehcache.Element(key, res)); | |
| 58 | |
| 59 return res; | |
| 60 } | |
| 61 } | |
| 62 else { | |
| 63 // we don't use a cache, so we have to query the database every | |
| 64 // single time | |
| 65 logger.info("Not using a cache."); | |
| 66 return VectorDataProcessor.process( | |
| 67 getData(queryID), RESULT_COLUMNS); | |
| 68 } | |
| 69 } | |
| 70 } | |
| 71 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 : |