public static void clear() {
while (!mutex.compareAndSet(false, true)) ;
try {
for (AbstractCache<?, ?> cache : cacheList.values()) {
cache.clear();
}
} finally {
mutex.compareAndSet(true, false);
}
}
/**
* Gets a value from the named cache with the given key
*
* @param <K>
* @param <V>
* @param cacheName
* @param key
* @return
* @throws CacheException
*/
public static <K, V> V getFromCache(String cacheName, K key) throws CacheException {
AbstractCache<K, V> cache;
V value = null;
try {
cache = getCache(cacheName);
value = cache != null ? cache.get(key) : null;
} catch (CacheException e) {
throw e;
}
return value;
}
/**
* This method is already invoked from within a critical section. Do not synchronize any further
*
* @param cacheClass
* @return
*/
private static AbstractCache<?, ?> createCache(String name) throws CacheException {
Map<String, String> map = config.remove(name);
if (map != null) {
AbstractCache<?, ?> cache;
try {
cache = CacheBuilder.build(map, name);
} catch (InstantiationException e) {
throw new CacheException(e);
}
cache.init();
return cache;
} else {
throw new CacheException("Cache [" + name + "] not found");
}
}