MessageTemplate

Author: Tiziana Trucco (TILab S.p.a)
Date: 6/12/2001

 

This example shows the usage of the MessageTemplate.MatchExpression Interface to define an application specific MessageTemplate. In particular in the method match() the programmer should realize the necessary checks on the ACLMessage and return true only if the message matches the application-specific template.

To try the example, start the WaitAgent and then enters the name (GUID) of all the agents that are allowed to send REQUEST messages to this agent.

java jade.Boot -gui agent:examples.MessageTemplate.WaitAgent

It might be useful to launch a DummyAgent from the RMA gui and use it to send a REQUEST message.

If a REQUEST message is received by one of the expected agents than the WaitAgent replies with a INFORM message, otherwise the message is just ignored. 

WaitAgent
Description:
The WaitAgent agent waits for a REQUEST message from one of the set of agents specified by the user.  
If such a message arrives (i.e. a message that matches the REQUEST performative and has been sent by one of the specified agents) than the WaitAgent replies with a INFORM message, otherwise no reply is sent and the message is ignored.
Jade classes used:
SimpleBehaviour,MessageTemplate.MatchExpression
Source
\src\examples\MessageTemplate\WaitAgent.java

 

JADE is a trademark of TILAB (formerly CSELT). 
JADE has been developed jointly by TILAB (formerly CSELT) and the Computer Engineering Group of the University of Parma