fifo

package Schedulling.fifo;

import Schedulling.CpuScheduler;
import java.util.ArrayList;
import Schedulling.Process;
import Schedulling.Time;

/**
 *
 * @author Mirra Ariesta Amalia Adiba
 */
public class Fifo extends CpuScheduler {

    private Process getSmallestArrival(ArrayList<Process> queue) {
        Process result = null;

        if (queue.size() > 0) {
            result = queue.get(0);
        }

        for (int i = 0; i < queue.size(); i++) {
            if (result.getArrivalTime() > queue.get(i).getArrivalTime()) {
                result = queue.get(i);
            }
        }
        return result;
    }

    @Override
    protected void execute() {
        time = 0;
        while (getRemainingBurstTime() > 0) {

            if (getCurrent() != null && getCurrent().getCurrentBurstTime() <= 0) {
                detach();
            }

            if (getCurrent() == null) {
                attach(getSmallestArrival(getProcessQueue(null)));
            }

            if (getCurrent() != null) {

                getCurrent().doProcess();
            }

            queueWait(getProcessQueue(getCurrent()));
            time++;
        }
        detach();
    }
}