On 01/13/2016 04:07 PM, [email protected] wrote:
Hi,
I am using the C++ messaging API for QPID to realize an
remote-procedure-call (RPC) via a request-reply pattern (see
https://qpid.apache.org/releases/qpid-0.24/programming/book/ch02s12.html)
The client pushes to a service-queue and generates an reply-queue.
The server reads from the service-queue and pushes to the reply-queue.
The reply-queues are automatically deleted if the client disconnects. It may
thus happen, that the reply-to flag of a message (received by the server)
contains a queue which does not exist anymore.
The code
const Address& address = request.getReplyTo();
Sender sender = session.createSender(address);
will in this case create an exception and invalidates the current session.
I would like to check in advance, whether a queue exists before creating the
sender. Is this anyhow possible with the C++ messaging API?
Could you use AMQP 1.0 rather than 0-10? If so then the failure to
create a sender should not affect the session.
Another option if you are stuck on 0-10, is to use a reply address based
on an exchange (e.g. my-exchange/<uuid>). That way you can also just use
a single sender to send all responses.
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
