private AMQProducerBrokerExchange getProducerBrokerExchange(ProducerId id) throws IOException {
AMQProducerBrokerExchange result = producerExchanges.get(id);
if (result == null) {
synchronized (producerExchanges) {
result = new AMQProducerBrokerExchange();
result.setConnectionContext(context);
// todo implement reconnect https://issues.apache.org/jira/browse/ARTEMIS-194
if (context.isReconnect()
|| (context.isNetworkConnection() && this.acceptorUsed.isAuditNetworkProducers())) {
if (protocolManager.getPersistenceAdapter() != null) {
result.setLastStoredSequenceId(
protocolManager.getPersistenceAdapter().getLastProducerSequenceId(id));
}
}
SessionState ss = state.getSessionState(id.getParentId());
if (ss != null) {
result.setProducerState(ss.getProducerState(id));
ProducerState producerState = ss.getProducerState(id);
if (producerState != null && producerState.getInfo() != null) {
ProducerInfo info = producerState.getInfo();
result.setMutable(info.getDestination() == null || info.getDestination().isComposite());
}
}
producerExchanges.put(id, result);
}
}
return result;
}
@Override
public Response processMessage(Message messageSend) {
Response resp = null;
try {
ProducerId producerId = messageSend.getProducerId();
AMQProducerBrokerExchange producerExchange = getProducerBrokerExchange(producerId);
final AMQConnectionContext pcontext = producerExchange.getConnectionContext();
final ProducerInfo producerInfo = producerExchange.getProducerState().getInfo();
boolean sendProducerAck =
!messageSend.isResponseRequired()
&& producerInfo.getWindowSize() > 0
&& !pcontext.isInRecoveryMode();
AMQSession session = protocolManager.getSession(producerId.getParentId());
if (producerExchange.canDispatch(messageSend)) {
SendingResult result = session.send(producerExchange, messageSend, sendProducerAck);
if (result.isBlockNextSend()) {
if (!context.isNetworkConnection() && result.isSendFailIfNoSpace()) {
throw new ResourceAllocationException(
"Usage Manager Memory Limit reached. Stopping producer ("
+ producerId
+ ") to prevent flooding "
+ result.getBlockingAddress()
+ "."
+ " See http://activemq.apache.org/producer-flow-control.html for more info");
}
if (producerInfo.getWindowSize() > 0 || messageSend.isResponseRequired()) {
// in that case don't send the response
// this will force the client to wait until
// the response is got.
context.setDontSendReponse(true);
} else {
// hang the connection until the space is available
session.blockingWaitForSpace(producerExchange, result);
}
} else if (sendProducerAck) {
ProducerAck ack = new ProducerAck(producerInfo.getProducerId(), messageSend.getSize());
this.dispatchAsync(ack);
}
}
} catch (Throwable e) {
if (e instanceof ActiveMQSecurityException) {
resp = new ExceptionResponse(new JMSSecurityException(e.getMessage()));
} else {
resp = new ExceptionResponse(e);
}
}
return resp;
}