Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FixingsOverviewFactory.java @ 4433:5b8919ef601d
Backed out changeset e8a4d2fd25cc
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Wed, 07 Nov 2012 12:23:41 +0100 |
parents | 8bc1e1cb7f7b |
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Service to generate the data needed to build the "Fixerungen pro Fluss Uebersicht"
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1 package de.intevation.flys.artifacts.model; |
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2 |
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3 import de.intevation.flys.artifacts.cache.CacheFactory; |
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4 |
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5 import de.intevation.flys.backend.SessionHolder; |
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6 |
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7 import net.sf.ehcache.Cache; |
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8 import net.sf.ehcache.Element; |
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9 |
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10 import org.apache.log4j.Logger; |
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11 |
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12 import org.hibernate.Session; |
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13 |
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14 public class FixingsOverviewFactory |
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15 { |
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16 private static Logger log = Logger.getLogger(FixingsOverviewFactory.class); |
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17 |
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18 public static final String CACHE_NAME = "fixings-overviews"; |
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19 |
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20 private FixingsOverviewFactory() { |
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21 } |
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24 public static FixingsOverview getOverview(String river) { |
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25 |
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26 boolean debug = log.isDebugEnabled(); |
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27 |
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28 if (debug) { |
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29 log.debug( |
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30 "Looking for fixings overview for river '" + river + "'"); |
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31 } |
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32 |
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33 Cache cache = CacheFactory.getCache(CACHE_NAME); |
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34 |
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35 if (cache == null) { |
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36 if (debug) { |
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37 log.debug("Cache not configured."); |
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38 } |
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39 return getUncached(river); |
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40 } |
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41 |
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42 String key = "fix-over-" + river; |
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43 |
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44 Element element = cache.get(key); |
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45 |
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46 if (element != null) { |
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47 if (debug) { |
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48 log.debug("Overview found in cache"); |
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49 } |
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50 return (FixingsOverview)element.getValue(); |
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51 } |
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52 |
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53 FixingsOverview overview = getUncached(river); |
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54 |
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55 if (overview != null) { |
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56 if (debug) { |
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57 log.debug("Store overview in cache."); |
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58 } |
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59 cache.put(new Element(key, overview)); |
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60 } |
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62 return overview; |
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63 } |
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64 |
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65 public static FixingsOverview getUncached(String river) { |
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66 FixingsOverview overview = new FixingsOverview(river); |
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67 |
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68 Session session = SessionHolder.HOLDER.get(); |
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69 |
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70 return overview.load(session) ? overview : null; |
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71 } |
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72 } |
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73 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |