Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/PorosityFactory.java @ 8186:a1ceacf15d3a
Removed NASTY package clash. We had too org.dive4elements.river.util packages.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Thu, 04 Sep 2014 13:00:55 +0200 |
parents | d9d2bd78eff6 |
children | e4606eae8ea5 |
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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 java.util.List; |
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12 |
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13 import net.sf.ehcache.Cache; |
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14 import net.sf.ehcache.Element; |
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15 |
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16 import org.apache.log4j.Logger; |
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17 import org.hibernate.SQLQuery; |
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18 import org.hibernate.Session; |
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19 import org.hibernate.type.StandardBasicTypes; |
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20 |
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21 import org.dive4elements.river.artifacts.cache.CacheFactory; |
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22 import org.dive4elements.river.artifacts.model.StaticPorosityCacheKey; |
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23 import org.dive4elements.river.backend.SessionHolder; |
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24 |
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25 |
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26 public class PorosityFactory |
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27 { |
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28 /** Private logger to use here. */ |
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29 private static Logger log = Logger.getLogger(PorosityFactory.class); |
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30 |
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31 public static final String SQL_SELECT = |
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32 "SELECT pv.station AS station, pv.porosity AS porosity " + |
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33 " FROM porosity p" + |
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34 " JOIN porosity_values pv on pv.porosity_id = p.id" + |
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35 " WHERE p.id = :porosity_id" + |
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36 " ORDER BY station"; |
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37 |
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38 private PorosityFactory() { |
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39 } |
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40 |
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41 |
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42 /** |
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43 * Get WKms for given column and wst_id, caring about the cache. |
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44 */ |
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45 public static Porosity getPorosity(int porosity_id) { |
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46 log.debug("PorosityFactory.getPorosity"); |
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47 Cache cache = CacheFactory.getCache(StaticPorosityCacheKey.CACHE_NAME); |
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48 |
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49 StaticPorosityCacheKey cacheKey; |
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50 |
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51 if (cache != null) { |
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52 cacheKey = new StaticPorosityCacheKey(porosity_id); |
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53 Element element = cache.get(cacheKey); |
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54 if (element != null) { |
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55 log.debug("Got static porosity values from cache"); |
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56 return (Porosity)element.getValue(); |
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57 } |
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58 } |
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59 else { |
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60 cacheKey = null; |
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61 } |
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62 |
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63 Porosity values = getPorosityUncached(porosity_id); |
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64 |
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65 if (values != null && cacheKey != null) { |
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66 log.debug("Store static porosity values in cache."); |
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67 Element element = new Element(cacheKey, values); |
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68 cache.put(element); |
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69 } |
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70 return values; |
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71 } |
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72 |
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73 private static Porosity getPorosityUncached(int porosity_id) { |
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74 if (log.isDebugEnabled()) { |
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75 log.debug("PorosityFactory.getPorosityUncached"); |
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76 } |
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77 |
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78 Session session = SessionHolder.HOLDER.get(); |
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79 SQLQuery sqlQuery = session.createSQLQuery(SQL_SELECT) |
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80 .addScalar("station", StandardBasicTypes.DOUBLE) |
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81 .addScalar("porosity", StandardBasicTypes.DOUBLE); |
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82 sqlQuery.setInteger("porosity_id", porosity_id); |
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83 List<Object []> results = sqlQuery.list(); |
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84 |
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85 Porosity porosities = new Porosity(); |
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86 for (Object [] row: results) { |
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87 log.debug("got station: " + (Double)row[0]); |
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88 porosities.add( |
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89 (Double) row[0], |
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90 (Double) row[1]); |
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91 } |
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92 return porosities; |
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93 } |
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94 } |
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95 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |