/**
* Sets the result associated with this request context and updates the state accordingly.
*
* @param result The result.
*/
private boolean setResult(final Result result) {
List<ExtendedResultHandlerHolder<?>> tmpHandlers = null;
boolean isCancelled = false;
boolean maySendResult;
synchronized (stateLock) {
maySendResult = sendResult;
switch (state) {
case PENDING:
case TOO_LATE:
/* Switch to appropriate final state. */
if (!result.getResultCode().equals(ResultCode.CANCELLED)) {
state = RequestState.RESULT_SENT;
} else {
state = RequestState.CANCELLED;
}
break;
case CANCEL_REQUESTED:
/*
* Switch to appropriate final state and invoke any cancel
* request handlers.
*/
if (!result.getResultCode().equals(ResultCode.CANCELLED)) {
state = RequestState.RESULT_SENT;
} else {
state = RequestState.CANCELLED;
}
isCancelled = (state == RequestState.CANCELLED);
tmpHandlers = cancelResultHandlers;
cancelResultHandlers = null;
break;
case RESULT_SENT:
case CANCELLED:
/*
* This should not happen - could throw an illegal state
* exception?
*/
maySendResult = false; // Prevent sending multiple results.
break;
}
}
/* Invoke handlers outside of lock. */
if (tmpHandlers != null) {
for (final ExtendedResultHandlerHolder<?> handler : tmpHandlers) {
if (isCancelled) {
handler.handleSuccess();
} else {
handler.handleTooLate();
}
}
}
return maySendResult;
}
