Good Day!
I am working on a Project, where I need to combine Jess with Jade and
Protégé. The problem is, I am having big troubles with the JessDE eclipse
Plug-in, as soon as I use some Protégé functions.
Editing regular jess code works absolutely fine, but when I edit code, that
uses Protégé or JessTab functions, like the following code, eclipse starts
using 99% of my CPU capacity and eventually freezes completely. This happens
after about 1 min of editing and there is no error message.
This error accurse only while editing the file. Reading or executing it
works absolutely fine.
I experienced the same effect on two different machines, one running Windows
2000, the other running SuSE Linux. I am using Eclipse SDK Version: 3.2.2,
Jess 7.0p1, JessTab 16 and Protégé 3.2.1.
Any help is highly appreciated!
Christoph Ebm
P.S.: Code, that makes trouble:
(watch all)
(load-package se.liu.ida.JessTab.JessTabFunctions)
(defclass Message_class ; a JADE ACL message mapped to a protege instance
(is-a :STANDARD-CLASS) ; class Message will inherit the standard slots
(slot Performative) ; get integer repesenting the type of message as
defined in jade.lang.acl.ACLMessage
(slot Sender (type any)) ; message sender, not a String, but a JADE AID
(slot Content) ; message content as a String
)
(mapclass Message_class)
(defrule message_rule ; make a protege instance for every message the agent
tells JESS about
?Message <- (Message ?message) ; the agent made this JESS fact for a
message it received
=>
(make-instance of Message_class ; a new protege instance of class Message
(Performative (call jade.lang.acl.ACLMessage getPerformative (?message
getPerformative)))
(Sender (call (call ?message getSender) getName))
(Content (call ?message getContent))
)
(retract ?Message)
)
(defrule proposal ; example for what the agent could do with a message
(Agent ?agent) ; the agent started with the JADE system
?instance <- (object) ; any protege instance would match here
(test (eq (class ?instance) Message_class)) ; if the instance is a Message
(test (eq (slot-get ?instance Performative) "CFP")) ; meaning the message
is a call for proposals
=>
(bind ?message (new jade.lang.acl.ACLMessage (get-member
jade.lang.acl.ACLMessage PROPOSE)))
(?message setSender (?agent getAID)) ; take "my" agent as the sender
(?message addReceiver (new jade.core.AID (slot-get ?instance Sender)
TRUE))
(?message setContent (slot-get ?instance Content)) ; just copy the
original content
(?agent send ?message)
)
