Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/org/dive4elements/river/artifacts/cache/CacheFactory.java @ 5831:bd047b71ab37
Repaired internal references
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Thu, 25 Apr 2013 12:06:39 +0200 |
parents | flys-artifacts/src/main/java/de/intevation/flys/artifacts/cache/CacheFactory.java@0c8aca463bd4 |
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5830:160f53ee0870 | 5831:bd047b71ab37 |
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1 package org.dive4elements.river.artifacts.cache; | |
2 | |
3 import org.dive4elements.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 CACHE_CONFIG_FILE_PROPERTY = | |
16 "flys.artifacts.cache.config.file"; | |
17 | |
18 public static final String XPATH_CACHE_CONFIG_FILE = | |
19 "/artifact-database/cache/config-file/text()"; | |
20 | |
21 private CacheFactory() { | |
22 } | |
23 | |
24 private static boolean initialized; | |
25 | |
26 private static CacheManager cacheManager; | |
27 | |
28 public static final Cache getCache() { | |
29 return getCache(Cache.DEFAULT_CACHE_NAME); | |
30 } | |
31 | |
32 public static final String getConfigFile() { | |
33 String configFile = System.getProperty(CACHE_CONFIG_FILE_PROPERTY); | |
34 | |
35 if (configFile != null) { | |
36 return configFile; | |
37 } | |
38 | |
39 configFile = Config.getStringXPath(XPATH_CACHE_CONFIG_FILE); | |
40 | |
41 if (configFile != null) { | |
42 configFile = Config.replaceConfigDir(configFile); | |
43 } | |
44 | |
45 return configFile; | |
46 } | |
47 | |
48 public static final synchronized Cache getCache(String cacheName) { | |
49 if (!initialized) { | |
50 initialized = true; // try only once | |
51 String configFile = getConfigFile(); | |
52 if (configFile != null) { | |
53 try { | |
54 cacheManager = CacheManager.create(configFile); | |
55 //System.setProperty( | |
56 // "net.sf.ehcache.enableShutdownHook", "true"); | |
57 Runtime.getRuntime().addShutdownHook(new Thread() { | |
58 public void run() { | |
59 log.info("shutting down caches"); | |
60 for (String name: cacheManager.getCacheNames()) { | |
61 log.info("\tflushing '" + name + "'"); | |
62 cacheManager.getCache(name).flush(); | |
63 } | |
64 cacheManager.shutdown(); | |
65 } | |
66 }); | |
67 } | |
68 catch (CacheException ce) { | |
69 log.error("cannot configure cache", ce); | |
70 } | |
71 } | |
72 } | |
73 | |
74 return cacheManager != null | |
75 ? cacheManager.getCache(cacheName) | |
76 : null; | |
77 } | |
78 } | |
79 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |