Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/PorosityFactory.java @ 8202:e4606eae8ea5

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sed src/**/*.java 's/logger/log/g'
author Sascha L. Teichmann <teichmann@intevation.de>
date Fri, 05 Sep 2014 12:58:17 +0200
parents d9d2bd78eff6
children 0a5239a1e46e
rev   line source
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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 log 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 :
http://dive4elements.wald.intevation.org