Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/SQOverviewFactory.java @ 3274:43e42315ce22
Added service for an overview chart of measuring points in sq relation.
flys-artifacts/trunk@4918 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Raimund Renkert <raimund.renkert@intevation.de> |
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date | Tue, 10 Jul 2012 16:37:48 +0000 |
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children | 30f157c7e466 |
rev | line source |
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43e42315ce22
Added service for an overview chart of measuring points in sq relation.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
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1 package de.intevation.flys.artifacts.model; |
43e42315ce22
Added service for an overview chart of measuring points in sq relation.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
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2 |
43e42315ce22
Added service for an overview chart of measuring points in sq relation.
Raimund Renkert <raimund.renkert@intevation.de>
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3 import de.intevation.flys.artifacts.cache.CacheFactory; |
43e42315ce22
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4 |
43e42315ce22
Added service for an overview chart of measuring points in sq relation.
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5 import de.intevation.flys.backend.SedDBSessionHolder; |
43e42315ce22
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6 |
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7 import net.sf.ehcache.Cache; |
43e42315ce22
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8 import net.sf.ehcache.Element; |
43e42315ce22
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9 |
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Added service for an overview chart of measuring points in sq relation.
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10 import org.apache.log4j.Logger; |
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11 |
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12 import org.hibernate.Session; |
43e42315ce22
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13 |
43e42315ce22
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14 public class SQOverviewFactory { |
43e42315ce22
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15 private static Logger log = Logger.getLogger(SQOverviewFactory.class); |
43e42315ce22
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16 |
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17 public static final String CACHE_NAME = "sq-overviews"; |
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18 |
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19 private SQOverviewFactory() { |
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20 } |
43e42315ce22
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21 |
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22 |
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23 public static SQOverview getOverview(String river) { |
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24 |
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25 boolean debug = log.isDebugEnabled(); |
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26 |
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27 if (debug) { |
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28 log.debug( |
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29 "Looking for sq overview for river '" + river + "'"); |
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30 } |
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31 |
43e42315ce22
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32 Cache cache = CacheFactory.getCache(CACHE_NAME); |
43e42315ce22
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33 |
43e42315ce22
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34 if (cache == null) { |
43e42315ce22
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35 if (debug) { |
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36 log.debug("Cache not configured."); |
43e42315ce22
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Raimund Renkert <raimund.renkert@intevation.de>
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37 } |
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38 return getUncached(river); |
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Raimund Renkert <raimund.renkert@intevation.de>
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39 } |
43e42315ce22
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Raimund Renkert <raimund.renkert@intevation.de>
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40 |
43e42315ce22
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41 String key = "sq-over-" + river; |
43e42315ce22
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42 |
43e42315ce22
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43 Element element = cache.get(key); |
43e42315ce22
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Raimund Renkert <raimund.renkert@intevation.de>
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44 |
43e42315ce22
Added service for an overview chart of measuring points in sq relation.
Raimund Renkert <raimund.renkert@intevation.de>
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45 if (element != null) { |
43e42315ce22
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Raimund Renkert <raimund.renkert@intevation.de>
parents:
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46 if (debug) { |
43e42315ce22
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Raimund Renkert <raimund.renkert@intevation.de>
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47 log.debug("Overview found in cache"); |
43e42315ce22
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Raimund Renkert <raimund.renkert@intevation.de>
parents:
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48 } |
43e42315ce22
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49 return (SQOverview)element.getValue(); |
43e42315ce22
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Raimund Renkert <raimund.renkert@intevation.de>
parents:
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50 } |
43e42315ce22
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Raimund Renkert <raimund.renkert@intevation.de>
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51 |
43e42315ce22
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Raimund Renkert <raimund.renkert@intevation.de>
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52 SQOverview overview = getUncached(river); |
43e42315ce22
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53 |
43e42315ce22
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Raimund Renkert <raimund.renkert@intevation.de>
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54 if (overview != null) { |
43e42315ce22
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Raimund Renkert <raimund.renkert@intevation.de>
parents:
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55 if (debug) { |
43e42315ce22
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56 log.debug("Store overview in cache."); |
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Raimund Renkert <raimund.renkert@intevation.de>
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57 } |
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58 cache.put(new Element(key, overview)); |
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59 } |
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60 |
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61 return overview; |
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Raimund Renkert <raimund.renkert@intevation.de>
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62 } |
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63 |
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64 public static SQOverview getUncached(String river) { |
43e42315ce22
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Raimund Renkert <raimund.renkert@intevation.de>
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65 SQOverview overview = new SQOverview(river); |
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66 |
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67 Session session = SedDBSessionHolder.HOLDER.get(); |
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68 |
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69 return overview.load(session) ? overview : null; |
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Raimund Renkert <raimund.renkert@intevation.de>
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70 } |
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71 } |