Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/MorphologicWidthFactory.java @ 6266:c297a61115d0
issue1267: Sort the list of FastCrossSections before binarySearching it.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Tue, 11 Jun 2013 11:59:25 +0200 |
parents | af13ceeba52a |
children | fe32a7f9655e |
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.StaticMorphoWidthCacheKey; |
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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 MorphologicWidthFactory |
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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(MorphologicWidthFactory.class); |
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30 |
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31 public static final String SQL_SELECT = |
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32 "SELECT mwv.station AS station, mwv.width AS width " + |
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33 " FROM morphologic_width mw" + |
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34 " JOIN morphologic_width_values mwv on mwv.morphologic_width_id = mw.id" + |
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35 " WHERE mw.id = :width_id"; |
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36 |
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37 private MorphologicWidthFactory() { |
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38 } |
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39 |
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40 |
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41 /** |
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42 * Get WKms for given column and wst_id, caring about the cache. |
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43 */ |
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44 public static MorphologicWidth getWidth(int width_id) { |
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45 log.debug("MorphologicWidthFactory.getWidth"); |
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46 Cache cache = CacheFactory.getCache(StaticMorphoWidthCacheKey.CACHE_NAME); |
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47 |
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48 StaticMorphoWidthCacheKey cacheKey; |
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49 |
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50 if (cache != null) { |
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51 cacheKey = new StaticMorphoWidthCacheKey(width_id); |
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52 Element element = cache.get(cacheKey); |
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53 if (element != null) { |
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54 log.debug("Got static bedheight values from cache"); |
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55 return (MorphologicWidth)element.getValue(); |
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56 } |
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57 } |
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58 else { |
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59 cacheKey = null; |
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60 } |
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61 |
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62 MorphologicWidth values = getWidthUncached(width_id); |
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63 |
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64 if (values != null && cacheKey != null) { |
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65 log.debug("Store static morphologic width values in cache."); |
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66 Element element = new Element(cacheKey, values); |
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67 cache.put(element); |
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68 } |
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69 return values; |
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70 } |
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71 |
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72 private static MorphologicWidth getWidthUncached(int width_id) { |
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73 if (log.isDebugEnabled()) { |
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74 log.debug("MorphologicWidthFactory.getWidthUncached"); |
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75 } |
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76 |
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77 Session session = SessionHolder.HOLDER.get(); |
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78 SQLQuery sqlQuery = session.createSQLQuery(SQL_SELECT) |
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79 .addScalar("station", StandardBasicTypes.DOUBLE) |
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80 .addScalar("width", StandardBasicTypes.DOUBLE); |
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81 sqlQuery.setInteger("width_id", width_id); |
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82 List<Object []> results = sqlQuery.list(); |
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83 |
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84 MorphologicWidth widths = new MorphologicWidth(); |
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85 for (int i = 0; i < results.size(); i++) { |
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86 Object[] row = results.get(i); |
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87 log.debug("got station: " + (Double)row[0]); |
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88 widths.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 widths; |
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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 : |