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> |
|---|---|
| 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 : |