Hi,
Thanks to the availability of the Maven artifacts with the 0.10 release
I've been able to finalize the library to do Hessian remote procedure
calls over AMQP. A documentation is available with complete code
examples on Github:
http://ebourg.github.com/qpid-hessian
The library is also available through Maven.
<dependency>
<groupId>org.apache-extras.qpid</groupId>
<artifactId>qpid-hessian</artifactId>
<version>1.0</version>
</dependency>
Emmanuel Bourg
Le 26/05/2010 14:01, Emmanuel Bourg a écrit :
Hi,
I've done some request/response work with Qpid lately, and I implemented
a Hessian layer to make it easier. I'd like to share it here if ever
someone find it useful. The source code is available there:
http://github.com/ebourg/qpid-hessian
If you've already worked with Hessian to do RPC over HTTP the principle
is almost identical:
1. Create an interface defining the methods exposed:
public interface EchoService {
String echo(String message);
}
2. Implement the interface and extend the HessianEndpoint class
(this is the equivalent of the HessianServlet):
public class EchoServiceEndpoint extends HessianEndpoint
implements EchoService {
public String echo(String message) {
return message;
}
}
3. Deploy the endpoint by attaching it to a Qpid session:
EchoServiceEndpoint endpoint = new EchoServiceEndpoint();
endpoint.run(session);
4. On the client side, create a proxy of the interface:
AMQPHessianProxyFactory factory = new AMQPHessianProxyFactory();
EchoService service = factory.create(EchoService.class,
"qpid://guest:guest@localhost/test");
5. The service is ready to be consumed!
String echo = service.echo("Hello Qpid!");
Emmanuel Bourg
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