public Object invokeHome(Invocation mi) throws Exception {
EntityEnterpriseContext ctx = (EntityEnterpriseContext) mi.getEnterpriseContext();
Transaction tx = mi.getTransaction();
Object rtn = getNext().invokeHome(mi);
// An anonymous context was sent in, so if it has an id it is a real instance now
if (ctx.getId() != null) {
// it doesn't need to be read, but it might have been changed from the db already.
ctx.setValid(true);
if (tx != null) {
BeanLock lock = container.getLockManager().getLock(ctx.getCacheKey());
try {
lock.schedule(mi);
register(ctx, tx); // Set tx
lock.endInvocation(mi);
} finally {
container.getLockManager().removeLockRef(lock.getId());
}
}
}
return rtn;
}
/**
* Tries to passivate the instance. If the instance is in use and passivateAfterCommit parameter
* is true then the instance will passivated after the transaction commits. Otherwise, the
* instance will be passivated later according to the container's commit option and max age.
*/
protected void tryToPassivate(EnterpriseContext ctx, boolean passivateAfterCommit) {
Object id = ctx.getId();
if (id == null) return;
BeanLock lock = getContainer().getLockManager().getLock(id);
boolean lockedBean = false;
try {
/* If this is a BeanLockExt only attempt the lock as the call to
remove is going to have to acquire the cache lock, but this may already
be held since this method is called by passivation policies without
the cache lock. This can lead to a deadlock as in the case of a size based
eviction during a cache get attempts to lock the bean that has been
locked by an age based background thread as seen in bug 987389 on
sourceforge.
*/
if (lock instanceof BeanLockExt) {
BeanLockExt lock2 = (BeanLockExt) lock;
lockedBean = lock2.attemptSync();
if (lockedBean == false) {
unableToPassivateDueToCtxLock(ctx, passivateAfterCommit);
return;
}
} else {
// Use the blocking sync
lock.sync();
lockedBean = true;
}
if (canPassivate(ctx)) {
try {
remove(id);
passivate(ctx);
freeContext(ctx);
} catch (Exception ignored) {
log.warn("failed to passivate, id=" + id, ignored);
}
} else {
// Touch the entry to make it MRU
synchronized (getCacheLock()) {
getCache().get(id);
}
unableToPassivateDueToCtxLock(ctx, passivateAfterCommit);
}
} finally {
if (lockedBean) lock.releaseSync();
getContainer().getLockManager().removeLockRef(id);
}
}
public void afterCompletion(int status) {
boolean trace = log.isTraceEnabled();
// This is an independent point of entry. We need to make sure the
// thread is associated with the right context class loader
ClassLoader oldCl = SecurityActions.getContextClassLoader();
boolean setCl = !oldCl.equals(container.getClassLoader());
if (setCl) {
SecurityActions.setContextClassLoader(container.getClassLoader());
}
container.pushENC();
int commitOption =
ctx.isPassivateAfterCommit()
? ConfigurationMetaData.C_COMMIT_OPTION
: EntitySynchronizationInterceptor.this.commitOption;
lock.sync();
// The context is no longer synchronized on the TX
ctx.hasTxSynchronization(false);
ctx.setTxAssociation(GlobalTxEntityMap.NONE);
ctx.setTransaction(null);
try {
try {
// If rolled back -> invalidate instance
if (status == Status.STATUS_ROLLEDBACK) {
// remove from the cache
container.getInstanceCache().remove(ctx.getCacheKey());
} else {
switch (commitOption) {
// Keep instance cached after tx commit
case ConfigurationMetaData.A_COMMIT_OPTION:
case ConfigurationMetaData.D_COMMIT_OPTION:
// The state is still valid (only point of access is us)
ctx.setValid(true);
break;
// Keep instance active, but invalidate state
case ConfigurationMetaData.B_COMMIT_OPTION:
// Invalidate state (there might be other points of entry)
ctx.setValid(false);
break;
// Invalidate everything AND Passivate instance
case ConfigurationMetaData.C_COMMIT_OPTION:
try {
// We weren't removed, passivate
// Here we own the lock, so we don't try to passivate
// we just passivate
if (ctx.getId() != null) {
container.getInstanceCache().remove(ctx.getId());
container.getPersistenceManager().passivateEntity(ctx);
}
// If we get this far, we return to the pool
container.getInstancePool().free(ctx);
} catch (Exception e) {
log.debug("Exception releasing context", e);
}
break;
}
}
} finally {
if (trace) log.trace("afterCompletion, clear tx for ctx=" + ctx + ", tx=" + tx);
lock.endTransaction(tx);
if (trace) log.trace("afterCompletion, sent notify on TxLock for ctx=" + ctx);
}
} // synchronized(lock)
finally {
lock.releaseSync();
container.getLockManager().removeLockRef(lock.getId());
container.popENC();
if (setCl) {
SecurityActions.setContextClassLoader(oldCl);
}
}
}
