public void forceQueRequest(Request request) {
synchronized (lock) {
if (blockingRequest == null) {
requestQueue.add(request);
channel.writeAndFlush(request.getRequest());
if (request.isBlocking()) {
blockingRequest = new BlockingRequestInProgress(request);
request
.getToComplete()
.addListener(
new DbListener<Object>() {
@Override
public void onCompletion(DbFuture<Object> future) {
blockingRequest.continueWithRequests();
}
});
}
} else {
if (blockingRequest.unblockBy(request)) {
requestQueue.add(request);
channel.writeAndFlush(request.getRequest());
} else {
blockingRequest.add(request);
}
}
}
}
private void forceCloseOnPendingRequests() {
for (Request request : requestQueue) {
if (request.getRequest().tryCancel()) {
request
.getToComplete()
.trySetException(new DbSessionClosedException("Connection is closed"));
}
}
if (null != blockingRequest) {
for (Request waitingRequest : blockingRequest.waitingRequests) {
if (waitingRequest.getRequest().tryCancel()) {
waitingRequest
.getToComplete()
.trySetException(new DbSessionClosedException("Connection is closed"));
}
}
}
}
public Request dequeRequest() {
synchronized (lock) {
final Request request = requestQueue.poll();
if (logger.isDebugEnabled()) {
logger.debug("Dequeued request: {}", request);
}
if (request.getRequest().wasCancelled()) {
if (logger.isDebugEnabled()) {
logger.debug("Request has been cancelled: {}", request);
}
return dequeRequest();
}
return request;
}
}