/**
* Shuts downs the caching service.
*
* @param container Reference to the container.
*/
public static void shutdown(Container container) {
// NB: this can't be called outside of container b/c agents have no refs
// to the singleton container. So we can be sure this method is going to
// create services just once.
if (container == null) return;
Registry reg = container.getRegistry();
((CacheServiceImpl) reg.getCacheService()).shutDown();
}
/**
* Creates a new {@link CacheService}.
*
* @param container Reference to the container.
* @return See above.
*/
public static CacheService makeNew(Container container) {
// NB: this can't be called outside of container b/c agents have no refs
// to the singleton container. So we can be sure this method is going to
// create services just once.
if (container == null) return null;
// If caching is off, then we return the no-op adapter.
Registry reg = container.getRegistry();
Boolean isCachingOn = (Boolean) reg.lookup(LookupNames.CACHE_ON);
if (!isCachingOn.booleanValue()) return makeNoOpCache();
// Ok we have to cache, so try and read the config file.
InputStream config = loadConfig(container.getConfigFileRelative(CACHE_CONFIG_FILE));
if (config == null) return makeNoOpCache();
// We have a config file, set up ehcache.
CacheService cache = new CacheServiceImpl(config, container.getRegistry().getLogger());
try {
config.close();
} catch (Exception e) {
}
return cache;
}
/**
* Creates a new instance. This can't be called outside of container b/c agents have no refs to
* the singleton container. So we can be sure this method is going to create services just once.
*
* @param c Reference to the container.
* @return The sole instance.
* @throws NullPointerException If the reference to the {@link Container} is <code>null</code>.
*/
public static PixelsServicesFactory getInstance(Container c) {
if (c == null) throw new NullPointerException(); // An agent called this method?
if (singleton == null) {
registry = c.getRegistry();
singleton = new PixelsServicesFactory();
// Retrieve the maximum heap size.
MemoryUsage usage = ManagementFactory.getMemoryMXBean().getHeapMemoryUsage();
String message = "Heap memory usage: max " + usage.getMax();
registry.getLogger().info(singleton, message);
// percentage of memory used for caching.
maxSize = (int) (RATIO * usage.getMax()) / FACTOR;
}
return singleton;
}
