CharafeddineMechalikh/PureEdgeSim

/**
 *     PureEdgeSim:  A Simulation Framework for Performance Evaluation of Cloud, Edge and Mist Computing Environments 
 *
 *     This file is part of PureEdgeSim Project.
 *
 *     PureEdgeSim is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 *
 *     PureEdgeSim is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 *
 *     You should have received a copy of the GNU General Public License
 *     along with PureEdgeSim. If not, see <http://www.gnu.org/licenses/>.
 *     
 *     @author Charafeddine Mechalikh
 **/
package examples;

import com.mechalikh.pureedgesim.datacentersmanager.DefaultComputingNode;
import com.mechalikh.pureedgesim.simulationengine.Event;
import com.mechalikh.pureedgesim.simulationengine.OnSimulationStartListener;
import com.mechalikh.pureedgesim.simulationmanager.SimulationManager;

/**
 * To create your own custom edge device/data center class, you need to extend the DataCenter class first.
 * Then you can add any methods you want. 
 * 
 * In this example we extended the DefaultDataCenter class (which extends the DataCenter class) instead of the DataCenter class, in order to remove code duplication 
 * (so we don't have to copy and paste the energy consumption and the CPU utilization functions of the DefaultDataCenter class). 
 * If we needed to change it, we would have extended the DataCenter class, and write our custom updateEnergyConsumption() function.
 * 
 * @author Charafeddine Mechalikh
 * @since PureEdgeSim 2.2
 */
public class Example4CustomComputingNode extends DefaultComputingNode implements OnSimulationStartListener{
    private static final int DO_SOMETHING = 12000; // Avoid conflicting with super classes tags

    public Example4CustomComputingNode(SimulationManager simulationManager, double mipsCapacity, int numberOfPes,
            double storage, double ram) {
        super(simulationManager, mipsCapacity, numberOfPes, storage, ram);
    }

    /*
     * This is a discrete event simulator, the devices or the simulation entities
     * will communicate through events here is an example of how to launch an event
     * after creating a device. where in this case, the event is sent to the device
     * itself,in order to update its energy consumption and resources utilization
     * history.
     */
    @Override
    public void onSimulationStart() {
        super.onSimulationStart();
        scheduleNow(this, DO_SOMETHING);

    }

    /*
     * The events sent, are handled via the following method. in this example, the
     * event was sent from this device to itself. after receiving this event, the
     * device will update its energy consumption, its location, and its resources
     * utilization history. after that, it will schedule the next update
     */
    @Override
    public void processEvent(final Event ev) {
        switch (ev.getTag()) {
        case DO_SOMETHING:
            System.out.println("Event received, you can do any action here");
            break;
        default:
            // process other events using the DefaultDataCenter class that we have extended
            // (the super class)
            // if you remove this line, it will not update the energy consumption and the
            // cpu utilization
            super.processEvent(ev);
            break;
        }
    }

}