Groovy Jabber-RPC

{link:Jabber-RPC|http://www.jabber.org/jeps/jep-0009.html}{link}

{link:Smack|http://www.jivesoftware.org/smack/}{link}

The Server

It's really easy to set up a server which provides a set of remotely callable functions.

1. Create a server object

   Code Block
   java
   import groovy.net.xmlrpc.* import org.jivesoftware.smack.XMPPConnection def server = new JabberRPCServer()

2. Add some methods

   Code Block
   java
   sever.echo = {return it} // the closure is now named "echo" and is remotely callable

3. Start the server

   Code Block
   java
   def serverConnection = new XMPPConnection("talk.example.org", 5222, "example.org") serverConnection.login("myServerId", "myServerPassword") // logging in as myServerId@example.org server.startServer(serverConnection)

4. You're done!

The Client

It's pretty easy to make the remote calls too

1. Create a proxy object to represent the remote server

   Code Block
   java
   def clientConnection = new XMPPConnection("talk.example.org", 5222, "example.org") clientConnection.login("myClientId", "myClientPassword") // logging in as myClientId@example.orgm def serverProxy = new JabberRPCServerProxy(clientConnection)

2. Call the remote method via the proxy

   Code Block
   java
   println severProxy.echo("Hello World!")

3. As long as myClientId@example.org and myServerId@example.org are buddies then the call will be made and the result returned