/**
* Make this connection active.
*
* @return true if the pool item is valid, false if it should be removed.
*/
synchronized UserPoolItem toActive(
Subject subject, ConnectionRequestInfo info, UserPoolItem oldPoolItem)
throws ResourceException {
long now = Alarm.getCurrentTime();
long maxIdleTime = _cm.getMaxIdleTime();
long maxPoolTime = _cm.getMaxPoolTime();
if (_hasConnectionError) return null;
else if (0 < maxIdleTime && _poolEventTime + maxIdleTime < now) return null;
else if (0 < maxPoolTime && _poolStartTime + maxPoolTime < now) return null;
else if (_shareHead != null)
throw new IllegalStateException(L.l("trying to activate active pool item."));
_poolEventTime = now;
_isXATransaction = _xaResource != null; // disable LT-optim by default
UserPoolItem userPoolItem = null;
if (oldPoolItem != null) {
Object uConn = oldPoolItem.getUserConnection();
if (uConn != null) _mConn.associateConnection(uConn);
oldPoolItem.associatePoolItem(this);
userPoolItem = oldPoolItem;
} else userPoolItem = new UserPoolItem(_cm, this);
if (!isValid(subject, info, userPoolItem)) return null;
_subject = subject;
_requestInfo = info;
userPoolItem.associate(this, _mcf, subject, info);
if (log.isLoggable(Level.FINE)) log.fine("allocate " + this);
if (_cm.getSaveAllocationStackTrace())
_allocationStackTrace =
new IllegalStateException(L.l("Connection {0} allocation stack trace", this));
return userPoolItem;
}
