about qpid exchange,queue - c

Question

every one:
i am new to qpid and encounter some problem. the exchange created by me can’t route message to the queue, as follows:
first i create a durbale queue “test-queue-1” in the qpid use the quid-config command:
qpid-config add queue test-queue-1 --durable
next i create a durable direct exchange “test-exchange-1" in the qpid also use the qpid-config command:
qpid-config add exchange direct test-exchange-1 --durable
the last, in bind them as follow command:
qpid-config bind test-exchange-1 test-queue-1 test-queue-1
everything seems ok in the qpid-tool:
Object Summary:
ID Created Destroyed Index
========================================================================================
128 12:28:28 - org.apache.qpid.broker:queue:qmfc-v2-hb-iZ23c6sri0pZ.12680.1
129 12:28:28 - org.apache.qpid.broker:queue:qmfc-v2-iZ23c6sri0pZ.12680.1
130 12:28:28 - org.apache.qpid.broker:queue:qmfc-v2-ui-iZ23c6sri0pZ.12680.1
131 12:28:28 - org.apache.qpid.broker:queue:reply-iZ23c6sri0pZ.12680.1
132 12:24:17 - org.apache.qpid.broker:queue:test-queue-1
133 12:28:28 - org.apache.qpid.broker:queue:topic-iZ23c6sri0pZ.12680.1
116 12:27:20 -
and
org.apache.qpid.broker:binding:org.apache.qpid.broker:exchange:test-exchange-1,org.apache.qpid.broker:queue:test-queue-1,test-queue-1
now i am ready to test them, start the recv/send demo program:
[devel#iZ23c6sri0pZ build]$ ./recv amqp://127.0.0.1/test-queue-1
send the message:
[devel#iZ23c6sri0pZ build]$ ./send -a amqp://127.0.0.1/test-exchange-1 hi,everyone
but the "recv program” can’t recv any message.
if i send message like this :
[devel#iZ23c6sri0pZ build]$ ./send -a amqp://127.0.0.1/test-queue-1 hi,everyone
the “recv program” can recv the message:
Address: amqp://127.0.0.1/test-queue-1
Subject: Hello Subject
Content: "hi,everyone"
who can tell me why?i read the amqp protocol, maybe the routing-key in the message don’t match the binding-key, but if this, how could i set the routing-key?
my recv/send writed by proton-c , version 0.8. qpidd is 0.32 version.

Answer 1

When you send a message to a qpid direct exchange, it gets routed to a bound queue based on the routing-key of the message. In proton-c you can set the routing key by setting the message-subject using the function
PN_EXTERN int pn_message_set_subject (pn_message_t* msg,const char* subject)
Unfortunately this is not implemented in the example send.c that is shipped with proton-c v0.8 You can insert the following line somewhere around here and rebuild your send executable
pn_message_set_subject(message, "my-routing-key");
You can also with some effort, add a new command-line option to accept and use a routing-key from ./send
The java example implements a -s option to set the message subject.

Answer 2

I too think it's a binding issue.
Try binding with following,
qpid-config bind test-exchange-1 test-queue-1 test-exchange-1
#Feng Fang: "test-exchange-1" is a routing key which is you are using while sending a message. If that does not give a try with "test-exchange-1/test-exchange-1"
Keep rest as-is and give a try.
I hope this helps!