TaskGenerator.java

package controller;

import java.util.Timer;
import java.util.TimerTask;
import model.Task;

public class TaskGenerator {
	private int minimumArrival, maximumArrival, minimumServiceTime, maximumServiceTime;
	private int simulationTime, timePassed;
	private int numberOfQueues, nrOfTasksPerQueue;
	private Timer timer;
	private TaskScheduler taskScheduler;

	public TaskGenerator(int minimumArrival, int maximumArrival, int minimumServiceTime, int maximumServiceTime,
			int simulationTime, int numberOfQueues, int nrOfTasksPerQueue) {
		this.minimumArrival = minimumArrival;
		this.maximumArrival = maximumArrival;
		this.minimumServiceTime = minimumServiceTime;
		this.maximumServiceTime = maximumServiceTime;
		this.simulationTime = simulationTime;
		this.numberOfQueues = numberOfQueues;
		this.setNrOfTasksPerQueue(nrOfTasksPerQueue);
		taskScheduler = new TaskScheduler(numberOfQueues, nrOfTasksPerQueue);
		timer = new Timer();
	}

	private int getRandomWithinRange(int min, int max) {
		int range = (max - min + 1);
		return ((int) (Math.random() * range) + min);
	}

	public void start() {
		timer.schedule(new TimerTask() {

			@Override
			public void run() {
				if (timePassed == simulationTime) {
					timer.cancel();
				}
				int arrivalTime = getRandomWithinRange(minimumArrival, maximumArrival);
				int serviceTime = getRandomWithinRange(minimumServiceTime, maximumServiceTime);
				taskScheduler.addTask(new Task(arrivalTime, serviceTime));
				timePassed++;
			}
		}, 1000, 1000);
	}

	public int getNrOfTasksPerQueue() {
		return nrOfTasksPerQueue;
	}

	public void setNrOfTasksPerQueue(int nrOfTasksPerQueue) {
		this.nrOfTasksPerQueue = nrOfTasksPerQueue;
	}
}