Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/BedOverviewFactory.java @ 7397:8ba53c5b86a7
issue1512: improved i18n for flow velocity measurement facets.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Fri, 18 Oct 2013 12:20:55 +0200 |
parents | af13ceeba52a |
children | 9530a00056dd |
rev | line source |
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River artifacts: Added new copyright headers.
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde |
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2 * Software engineering by Intevation GmbH |
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3 * |
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4 * This file is Free Software under the GNU AGPL (>=v3) |
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the |
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6 * documentation coming with Dive4Elements River for details. |
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7 */ |
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8 |
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9 package org.dive4elements.river.artifacts.model.minfo; |
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10 |
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11 import net.sf.ehcache.Cache; |
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12 import net.sf.ehcache.Element; |
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13 |
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14 import org.apache.log4j.Logger; |
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15 import org.hibernate.Session; |
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16 |
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17 import org.dive4elements.river.artifacts.cache.CacheFactory; |
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18 import org.dive4elements.river.backend.SedDBSessionHolder; |
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19 |
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20 public class BedOverviewFactory { |
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21 |
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22 private static Logger log = Logger.getLogger(BedOverviewFactory.class); |
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23 |
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24 public static final String CACHE_NAME = "sq-overviews"; |
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25 |
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26 private BedOverviewFactory() { |
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27 } |
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28 |
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29 |
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30 public static BedOverview getOverview(String river) { |
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31 |
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32 boolean debug = log.isDebugEnabled(); |
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33 |
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34 if (debug) { |
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35 log.debug( |
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36 "Looking for bed overview for river '" + river + "'"); |
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37 } |
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38 |
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39 Cache cache = CacheFactory.getCache(CACHE_NAME); |
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40 |
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41 if (cache == null) { |
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42 if (debug) { |
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43 log.debug("Cache not configured."); |
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44 } |
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45 return getUncached(river); |
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46 } |
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47 |
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48 String key = "bed-over-" + river; |
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49 |
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50 Element element = cache.get(key); |
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51 |
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52 if (element != null) { |
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53 if (debug) { |
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54 log.debug("Overview found in cache"); |
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55 } |
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56 return (BedOverview)element.getValue(); |
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57 } |
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58 |
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59 BedOverview overview = getUncached(river); |
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60 |
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61 if (overview != null) { |
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62 if (debug) { |
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63 log.debug("Store overview in cache."); |
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64 } |
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65 cache.put(new Element(key, overview)); |
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66 } |
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67 |
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68 return overview; |
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69 } |
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70 |
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71 public static BedOverview getUncached(String river) { |
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72 BedOverview overview = new BedOverview(river); |
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73 |
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74 Session session = SedDBSessionHolder.HOLDER.get(); |
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75 |
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76 return overview.load(session) ? overview : null; |
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77 } |
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78 } |