Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FixingsOverviewFactory.java @ 2561:b3f6d49cdc80
Service to generate the data needed to build the "Fixerungen pro Fluss Uebersicht"
flys-artifacts/trunk@4087 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Sun, 19 Feb 2012 17:14:39 +0000 |
parents | |
children | 8bc1e1cb7f7b |
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2560:0d8c97374dc9 | 2561:b3f6d49cdc80 |
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1 package de.intevation.flys.artifacts.model; | |
2 | |
3 import de.intevation.flys.artifacts.cache.CacheFactory; | |
4 | |
5 import de.intevation.flys.backend.SessionHolder; | |
6 | |
7 import net.sf.ehcache.Cache; | |
8 import net.sf.ehcache.Element; | |
9 | |
10 import org.apache.log4j.Logger; | |
11 | |
12 import org.hibernate.Session; | |
13 | |
14 public class FixingsOverviewFactory | |
15 { | |
16 private static Logger log = Logger.getLogger(FixingsOverviewFactory.class); | |
17 | |
18 public static final String CACHE_NAME = "fixings-overviews"; | |
19 | |
20 private FixingsOverviewFactory() { | |
21 } | |
22 | |
23 | |
24 public static FixingsOverview getOverview(String river) { | |
25 | |
26 log.debug("Looking for fixings overview for river '" + river + "'"); | |
27 | |
28 Cache cache = CacheFactory.getCache(CACHE_NAME); | |
29 | |
30 if (cache == null) { | |
31 return getUncached(river); | |
32 } | |
33 | |
34 String key = "fix-over-" + river; | |
35 | |
36 Element element = cache.get(key); | |
37 | |
38 if (element != null) { | |
39 return (FixingsOverview)element.getValue(); | |
40 } | |
41 | |
42 FixingsOverview overview = getUncached(river); | |
43 | |
44 if (overview != null) { | |
45 element = new Element(key, overview); | |
46 cache.put(element); | |
47 } | |
48 | |
49 return overview; | |
50 } | |
51 | |
52 public static FixingsOverview getUncached(String river) { | |
53 FixingsOverview overview = new FixingsOverview(river); | |
54 | |
55 Session session = SessionHolder.HOLDER.get(); | |
56 | |
57 return overview.load(session) ? overview : null; | |
58 } | |
59 } | |
60 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |