@Override
public void copyForUpdate(DataContainer container, boolean writeSkewCheck) {
if (isChanged()) return; // already copied
// mark entry as changed.
setChanged();
if (writeSkewCheck) {
// check for write skew.
InternalCacheEntry ice = container.get(key);
Object actualValue = ice == null ? null : ice.getValue();
// Note that this identity-check is intentional. We don't *want* to call actualValue.equals()
// since that defeats the purpose.
// the implicit "versioning" we have in R_R creates a new wrapper "value" instance for every
// update.
if (actualValue != null && actualValue != value) {
String errormsg =
new StringBuilder()
.append("Detected write skew on key [")
.append(getKey())
.append("]. Another process has changed the entry since we last read it!")
.toString();
if (log.isWarnEnabled()) log.warn(errormsg + ". Unable to copy entry for update.");
throw new CacheException(errormsg);
}
}
// make a backup copy
oldValue = value;
}
public static void killCacheManagers(EmbeddedCacheManager... cacheManagers) {
// stop the caches first so that stopping the cache managers doesn't trigger a rehash
for (EmbeddedCacheManager cm : cacheManagers) {
try {
killCaches(getRunningCaches(cm));
} catch (Throwable e) {
log.warn("Problems stopping cache manager " + cm, e);
}
}
for (EmbeddedCacheManager cm : cacheManagers) {
try {
if (cm != null) cm.stop();
} catch (Throwable e) {
log.warn("Problems killing cache manager " + cm, e);
}
}
}
public static void clearContent(List<? extends EmbeddedCacheManager> cacheManagers) {
for (EmbeddedCacheManager cm : cacheManagers) {
try {
clearContent(cm);
} catch (Throwable e) {
log.warn("Problems clearing cache manager " + cm, e);
}
}
}
public void forget(Xid externalXid) throws XAException {
Xid xid = convertXid(externalXid);
if (trace) log.tracef("forget called for xid %s", xid);
try {
recoveryManager.removeRecoveryInformationFromCluster(null, xid, true);
} catch (Exception e) {
log.warn("Exception removing recovery information: ", e);
throw new XAException(XAException.XAER_RMERR);
}
}
/**
* Get the systemwide used TransactionManager
*
* @return TransactionManager
*/
public TransactionManager getTransactionManager() {
if (!lookupDone) doLookups();
if (tm != null) return tm;
if (lookupFailed) {
// fall back to a dummy from Infinispan
tm = DummyTransactionManager.getInstance();
log.warn("Falling back to DummyTransactionManager from Infinispan");
}
return tm;
}
@Override
public void stop() {
try {
DataSources.destroy(pooledDataSource);
if (log.isTraceEnabled()) {
log.debug("Successfully stopped PooledConnectionFactory.");
}
} catch (SQLException sqle) {
log.warn("Could not destroy C3P0 connection pool: " + pooledDataSource, sqle);
}
}
private synchronized void fetchClusterWideStatsIfNeeded() {
if (launchNewDistTask()) {
try {
List<CompletableFuture<Map<String, Number>>> responseList =
des.submitEverywhere(new DistributedCacheStatsCallable());
updateFieldsFromResponseMap(responseList);
} catch (Exception e) {
log.warn("Could not execute cluster wide cache stats operation ", e);
} finally {
statsUpdateTimestamp = ts.time();
}
}
}
private void logBefore(boolean checkout) {
if (log.isTraceEnabled()) {
String operation = checkout ? "checkout" : "release";
try {
log.trace(
"DataSource before "
+ operation
+ " (NumBusyConnectionsAllUsers) : "
+ pooledDataSource.getNumBusyConnectionsAllUsers()
+ ", (NumConnectionsAllUsers) : "
+ pooledDataSource.getNumConnectionsAllUsers());
} catch (SQLException e) {
log.warn("Unexpected", e);
}
}
}
private void broadcastInvalidateForPrepare(
List<WriteCommand> modifications, Transaction tx, InvocationContext ctx) throws Throwable {
if (ctx.isInTxScope() && !isLocalModeForced(ctx)) {
if (modifications == null || modifications.isEmpty()) return;
InvalidationFilterVisitor filterVisitor = new InvalidationFilterVisitor(modifications.size());
filterVisitor.visitCollection(null, modifications);
if (filterVisitor.containsPutForExternalRead) {
log.debug("Modification list contains a putForExternalRead operation. Not invalidating.");
} else if (filterVisitor.containsLocalModeFlag) {
log.debug("Modification list contains a local mode flagged operation. Not invalidating.");
} else {
try {
invalidateAcrossCluster(
defaultSynchronous, ctx, filterVisitor.result.toArray(), false, null);
} catch (Throwable t) {
log.warn("Unable to broadcast evicts as a part of the prepare phase. Rolling back.", t);
if (t instanceof RuntimeException) throw (RuntimeException) t;
else throw new RuntimeException("Unable to broadcast invalidation messages", t);
}
}
}
}
