/**
* Returns a list of catalogs for the current session.
*
* <p>The cache is stored in the platform's caches in the region {@link #CATALOG_CACHE_REGION}. It
* is also segmented by locale, but we only return the correct sub-region according to the session
* passed as a parameter.
*/
@SuppressWarnings("unchecked")
protected synchronized List<IOlapService.Catalog> getCache(IPentahoSession session) {
// Create the cache region if necessary.
final ICacheManager cacheMgr = PentahoSystem.getCacheManager(session);
final Object cacheKey = makeCacheSubRegionKey(getLocale());
final Lock writeLock = cacheLock.writeLock();
try {
writeLock.lock();
if (!cacheMgr.cacheEnabled(CATALOG_CACHE_REGION)) {
// Create the region. This requires write access.
cacheMgr.addCacheRegion(CATALOG_CACHE_REGION);
}
if (cacheMgr.getFromRegionCache(CATALOG_CACHE_REGION, cacheKey) == null) {
// Create the sub-region. This requires write access.
cacheMgr.putInRegionCache(
CATALOG_CACHE_REGION, cacheKey, new ArrayList<IOlapService.Catalog>());
}
return (List<IOlapService.Catalog>)
cacheMgr.getFromRegionCache(CATALOG_CACHE_REGION, cacheKey);
} finally {
writeLock.unlock();
}
}
public AbstractJcrBackedRoleBindingDao() {
cacheManager = PentahoSystem.getCacheManager(null);
if (!cacheManager.cacheEnabled(LOGICAL_ROLE_BINDINGS_REGION)) {
cacheManager.addCacheRegion(LOGICAL_ROLE_BINDINGS_REGION);
}
}
protected ICacheManager addCacheRegions() {
ICacheManager cacheManager = PentahoSystem.getCacheManager(null);
Logger.debug(this, "Adding caching regions ..."); // $NON-NLS-1$
if (!cacheManager.cacheEnabled(IDBDatasourceService.JDBC_DATASOURCE)) {
cacheManager.addCacheRegion(IDBDatasourceService.JDBC_DATASOURCE);
}
return cacheManager;
}
/** Wraps the provided domain repository to provide session-based caching of domains. */
public SessionCachingMetadataDomainRepository(final IMetadataDomainRepository delegate) {
if (delegate == null) {
throw new NullPointerException();
}
this.delegate = delegate;
cacheManager = PentahoSystem.getCacheManager(null); // cache manager gets loaded just once...
if (cacheManager != null) {
if (!cacheManager.cacheEnabled(CACHE_REGION)) {
if (!cacheManager.addCacheRegion(CACHE_REGION)) {
cacheManager = null;
}
}
}
if (cacheManager == null) {
throw new IllegalStateException(
getClass().getSimpleName()
+ " ("
+ CACHE_REGION
+ ") cannot be initialized"); //$NON-NLS-1$ //$NON-NLS-2$
}
PentahoSystem.addLogoutListener(
this); // So you can remove a users' region when their session disappears
}
