/** Merge the transactional caches into the shared cache */
public void beforeCommit(boolean readOnly) {
if (isDebugEnabled) {
logger.debug("Processing before-commit");
}
TransactionData txnData = getTransactionData();
try {
if (txnData.isClearOn) {
// clear shared cache
final long startNanos = cacheStatsEnabled ? System.nanoTime() : 0;
sharedCache.clear();
final long endNanos = cacheStatsEnabled ? System.nanoTime() : 0;
if (cacheStatsEnabled) {
TransactionStats stats = txnData.stats;
stats.record(startNanos, endNanos, OpType.CLEAR);
}
if (isDebugEnabled) {
logger.debug("Clear notification recieved in commit - clearing shared cache");
}
} else {
// transfer any removed items
for (Serializable key : txnData.removedItemsCache) {
final long startNanos = System.nanoTime();
sharedCache.remove(key);
final long endNanos = System.nanoTime();
TransactionStats stats = txnData.stats;
stats.record(startNanos, endNanos, OpType.REMOVE);
}
if (isDebugEnabled) {
logger.debug(
"Removed "
+ txnData.removedItemsCache.size()
+ " values from shared cache in commit");
}
}
// transfer updates
Set<Serializable> keys = (Set<Serializable>) txnData.updatedItemsCache.keySet();
for (Map.Entry<Serializable, CacheBucket<V>> entry :
(Set<Map.Entry<Serializable, CacheBucket<V>>>) txnData.updatedItemsCache.entrySet()) {
Serializable key = entry.getKey();
CacheBucket<V> bucket = entry.getValue();
bucket.doPreCommit(
sharedCache, key, this.isMutable, this.allowEqualsChecks, txnData.isReadOnly);
}
if (isDebugEnabled) {
logger.debug("Pre-commit called for " + keys.size() + " values.");
}
} catch (Throwable e) {
throw new AlfrescoRuntimeException("Failed to transfer updates to shared cache", e);
} finally {
// Block any further updates
txnData.isClosed = true;
}
}
/**
* Ensures that the transactional caches are removed from the common cache manager.
*
* @param txnData the data with references to the the transactional caches
*/
private void removeCaches(TransactionData txnData) {
txnData.isClosed = true;
}
