com.almende.eve.agent.example.MyFirstAgent.java Source code

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Here is the source code for com.almende.eve.agent.example.MyFirstAgent.java

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/*
 * Copyright: Almende B.V. (2014), Rotterdam, The Netherlands
 * License: The Apache Software License, Version 2.0
 */
package com.almende.eve.agent.example;

import java.io.IOException;

import com.almende.eve.agent.Agent;
import com.almende.eve.agent.AgentHost;
import com.almende.eve.rpc.annotation.Access;
import com.almende.eve.rpc.annotation.AccessType;
import com.almende.eve.rpc.annotation.Name;
import com.almende.eve.rpc.jsonrpc.JSONRPCException;
import com.almende.eve.rpc.jsonrpc.jackson.JOM;
import com.almende.eve.state.MemoryStateFactory;
import com.fasterxml.jackson.databind.node.ObjectNode;

/**
 * This class forms an Eve agent with two public RPC methods:
 * "helloWorld()" and "callMyself()".
 */
@Access(AccessType.PUBLIC)
public class MyFirstAgent extends Agent {

    /**
     * Example function to be called.
     *
     * @param name the name
     * @return the string
     */
    public String helloWorld(@Name("name") final String name) {
        return "Hello " + name + " and the rest of the world!";
    }

    /**
     * Through this method the agent calls itself and prints the result to the
     * console.
     *
     * @throws IOException Signals that an I/O exception has occurred.
     * @throws JSONRPCException the jSONRPC exception
     */
    public void callMyself() throws IOException, JSONRPCException {
        final ObjectNode params = JOM.createObjectNode();
        params.put("name", getId());
        final String result = send(getFirstUrl(), "helloWorld", params, String.class);
        System.out.println("Got reply:" + result);
    }

    /**
     * Main method to make this example self contained, providing the AgentHost,
     * creating the agent, triggering the call, etc.
     *
     * @param args the arguments
     */
    public static void main(final String[] args) {
        final AgentHost host = AgentHost.getInstance();
        host.setStateFactory(new MemoryStateFactory());
        try {

            final MyFirstAgent agent = host.createAgent(MyFirstAgent.class, "MyFirstAgent");
            agent.callMyself();

        } catch (final Exception e) {
            System.err.println("Strange, couldn't create agent in host.");
            e.printStackTrace();
        }
    }
}