Mercurial > dive4elements > gnv-client
annotate gnv-artifacts/src/main/java/de/intevation/gnv/state/profile/vertical/VerticalProfileMeshVectorOutputState.java @ 1145:dfe1ac687c7f tip
added tags
author | Thomas Arendsen Hein <thomas@intevation.de> |
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date | Fri, 28 Sep 2012 12:16:15 +0200 |
parents | f953c9a559d8 |
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1 /* |
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2 * Copyright (c) 2010 by Intevation GmbH |
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3 * |
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4 * This program is free software under the LGPL (>=v2.1) |
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5 * Read the file LGPL.txt coming with the software for details |
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6 * or visit http://www.gnu.org/licenses/ if it does not exist. |
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7 */ |
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8 |
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9 package de.intevation.gnv.state.profile.vertical; |
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10 |
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11 import de.intevation.artifacts.CallContext; |
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12 |
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13 import de.intevation.gnv.artifacts.cache.CacheFactory; |
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14 |
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15 import de.intevation.gnv.geobackend.base.Result; |
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16 |
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17 import de.intevation.gnv.utils.VectorDataProcessor; |
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18 |
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19 import java.util.Collection; |
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20 |
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21 import net.sf.ehcache.Cache; |
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22 |
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23 import org.apache.log4j.Logger; |
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24 |
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25 |
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26 /** |
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27 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> |
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28 */ |
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29 public class VerticalProfileMeshVectorOutputState |
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30 extends VerticalProfileVectorOutputState |
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31 { |
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32 public static final String[] RESULT_COLUMNS = { |
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33 "YORDINATE", "XORDINATE", "KPOSITION", |
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34 "GROUP1", "GROUP2", "GROUP3", |
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35 "DATAID", "FEATUREID", "MESHID", |
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36 "SERIES" |
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37 }; |
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38 |
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39 private static Logger logger = |
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40 Logger.getLogger(VerticalProfileMeshVectorOutputState.class); |
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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 chart data for vertical profile 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 logger.debug("Got " + res.size() + " elements from db."); |
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63 |
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64 res = VectorDataProcessor.process(res, RESULT_COLUMNS); |
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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 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 : |