Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/cache/CacheFactory.java @ 373:7f7d6037d242
Added ehcache support.
flys-artifacts/trunk@1782 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Fri, 29 Apr 2011 16:56:37 +0000 |
parents | |
children | e07d1c3f7667 |
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372:fc3cf0ef777e | 373:7f7d6037d242 |
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1 package de.intevation.flys.artifacts.cache; | |
2 | |
3 import de.intevation.artifacts.common.utils.Config; | |
4 | |
5 import net.sf.ehcache.Cache; | |
6 import net.sf.ehcache.CacheException; | |
7 import net.sf.ehcache.CacheManager; | |
8 | |
9 import org.apache.log4j.Logger; | |
10 | |
11 public final class CacheFactory | |
12 { | |
13 private static Logger log = Logger.getLogger(CacheFactory.class); | |
14 | |
15 public static final String XPATH_CACHE_CONFIG_FILE = | |
16 "/artifact-database/cache/config-file/text()"; | |
17 | |
18 private CacheFactory() { | |
19 } | |
20 | |
21 private static boolean initialized; | |
22 | |
23 private static CacheManager cacheManager; | |
24 | |
25 public static final Cache getCache() { | |
26 return getCache(Cache.DEFAULT_CACHE_NAME); | |
27 } | |
28 | |
29 public static final synchronized Cache getCache(String cacheName) { | |
30 if (!initialized) { | |
31 initialized = true; // try only once | |
32 String configFile = Config.getStringXPath(XPATH_CACHE_CONFIG_FILE); | |
33 if (configFile != null) { | |
34 configFile = Config.replaceConfigDir(configFile); | |
35 try { | |
36 cacheManager = CacheManager.create(configFile); | |
37 //System.setProperty( | |
38 // "net.sf.ehcache.enableShutdownHook", "true"); | |
39 Runtime.getRuntime().addShutdownHook(new Thread() { | |
40 public void run() { | |
41 cacheManager.shutdown(); | |
42 } | |
43 }); | |
44 } | |
45 catch (CacheException ce) { | |
46 log.error("cannot configure cache", ce); | |
47 } | |
48 } | |
49 } | |
50 | |
51 return cacheManager != null | |
52 ? cacheManager.getCache(cacheName) | |
53 : null; | |
54 } | |
55 } | |
56 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |