Agent Behaviors

MyAgent.java (1.0)

package demos;

import jade.core.*;
import jade.core.behaviours.*;

public class MyAgent extends Agent {

protected void setup() {
// getting my Agent ID (AID) and local name:
System.out.println("Agent " + getAID().getName() + " is ready!");
System.out.println("My local name is " + getLocalName());
// fetching my command line arguments:
Object[] args = getArguments();
if (args != null && args.length > 0) {
System.out.println("My command line arguments are: ");
for(int i = 0; i < args.length; i++) {
System.out.println(args[i]);
}
} else {
System.out.println("No command line argments specified");
}
// terminating:
doDelete();
}

// put any agent cleanup operations here:
protected void takeDown() {
System.out.println(
"Agent " + getLocalName() + " is shutting down");
}
}

Starting a new agent using RMA:

Console output:

Agent mimi@DELL-LAPTOP2:1099/JADE is ready!
My local name is mimi
My command line arguments are:
a
bb
ccc
dddd
Agent mimi is shutting down

MyAgent.java (2.0)

protected void setup() {
addBehaviour(new Behavior1(this));
addBehaviour(new Behavior2());
addBehaviour(new Behavior3());
// etc.
}

Generic Behavior

class Behavior1 extends Behaviour {
private int count = 0;
public Behavior1(Agent a) { super(a); } // myAgent = a
public void action() {
System.out.println("Count = " + count++);
}
public boolean done() {
return 10 < count;
}
public int onEnd() {
myAgent.doDelete();
return super.onEnd();
}
}

One Shot Behavior

class Behavior2 extends OneShotBehaviour {
// done() = true
public void action() {
System.out.println("This message only appears once");
}
}

Cyclic Behavior

class Behavior3 extends CyclicBehaviour {
// done() = false
public void action() {
System.out.println("This message appears many times");
}
}

Console Output

Agent alf@DELL-LAPTOP2:1099/JADE is ready!
My local name is alf
No command line argments specified
Count = 0
This message only appears once
This message appears many times
Count = 1
This message appears many times
Count = 2
This message appears many times
Count = 3
This message appears many times
Count = 4
This message appears many times
Count = 5
This message appears many times
Count = 6
This message appears many times
Count = 7
This message appears many times
Count = 8
This message appears many times
Count = 9
This message appears many times
Count = 10
Agent alf is shutting down