com.almende.eve.demo.TipsNTricksAgent.java Source code

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Here is the source code for com.almende.eve.demo.TipsNTricksAgent.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.demo;

import java.util.logging.Logger;

import org.joda.time.DateTime;

import com.almende.eve.agent.Agent;
import com.almende.eve.protocol.jsonrpc.annotation.Access;
import com.almende.eve.protocol.jsonrpc.annotation.AccessType;

/**
 * The Class TipsNTricksAgent.
 */
@Access(AccessType.PUBLIC)
public class TipsNTricksAgent extends Agent {
    private static final Logger LOG = Logger.getLogger(TipsNTricksAgent.class.getName());
    private int protectedCounter = 0;
    private int counter = 0;

    /* (non-Javadoc)
     * @see com.almende.eve.agent.Agent#onInit()
     */
    @Override
    public void onReady() {

        /* Example scheduling: */

        //run something every second, never parallel
        scheduleSequential();

        //run something every second, potentially parallel
        scheduleParallel();

        //run something at specific seconds, potentially parallel
        scheduleSpecific();

        //Print the two counters, which potentially differ as there is a small race condition. (two scheduled threads doing the counter++ at the same time)
        scheduleStats();
    }

    /**
     * On interval.
     */
    public void onInterval() {
        counter++;
        synchronized (this) {
            protectedCounter++;
        }
    }

    /**
     * Schedule sequential.
     */
    public void scheduleSequential() {
        onInterval();
        schedule("scheduleSequential", null, 1000);
    }

    /**
     * Schedule parallel.
     */
    public void scheduleParallel() {
        schedule("scheduleParallel", null, 1000);
        onInterval();
    }

    /**
     * Schedule parallel.
     */
    public void scheduleSpecific() {
        schedule("scheduleSpecific", null, DateTime.now().plus(1000 - DateTime.now().millisOfSecond().get()));
        onInterval();
    }

    /**
     * Print some stats
     */
    public void scheduleStats() {
        LOG.info("Two counters:" + counter + "/" + protectedCounter);
        schedule("scheduleStats", null, 2000);
    }

}