TheatreBookerBean.java

package com.packtpub.as7development.chapter10.ejb;





import java.util.concurrent.Future;

import javax.annotation.PostConstruct;

import javax.ejb.AsyncResult;
import javax.ejb.Asynchronous;
import javax.ejb.EJB;
import javax.ejb.Remote;
import javax.ejb.Stateful;


import org.jboss.logging.Logger;

import com.packtpub.as7development.chapter10.exception.NotEnoughMoneyException;
import com.packtpub.as7development.chapter10.exception.SeatBookedException;
import com.packtpub.as7development.chapter10.model.Seat;
import org.jboss.ejb3.annotation.Cache;
import javax.ejb.*;
@org.jboss.ejb3.annotation.Clustered 

@Cache("dist")

@StatefulTimeout(value = 360)


@Stateful
@Remote(TheatreBooker.class) 
public class TheatreBookerBean implements TheatreBooker {
	private static final Logger logger =
			Logger.getLogger(TheatreBookerBean.class);

	int money;
	@EJB TheatreBox theatreBox;

	@PostConstruct
	public void createCustomer() {
		this.money=100;
	}



	public String bookSeat(int seatId) throws SeatBookedException,NotEnoughMoneyException {
		Seat seat = theatreBox.getSeatList().get(seatId);
		if (seat.isBooked()) {
			throw new SeatBookedException("Seat Already booked!");
		}
		if (seat.getPrice() > money) {
			throw new NotEnoughMoneyException("You don't have enough money to buy this ticket!");
		}
		theatreBox.buyTicket(seatId);
		money = money -seat.getPrice();
		logger.info("Seat booked.");
		return "Seat booked.";
	}
	@Asynchronous
	public Future<String> bookSeatAsync(int seatId) {

		Seat seat = theatreBox.getSeatList().get(seatId);
		if (seat.isBooked()) {
			return new AsyncResult<String>("Seat "+seatId+" Already booked!");
		}
		if (seat.getPrice() > money) {
			return new AsyncResult<String>("You don't have enough money to buy this ticket!");
		}
        try {
			Thread.sleep(10000);
		} catch (InterruptedException e) {
			 
			e.printStackTrace();
		}
		logger.info("Booking issued");
		theatreBox.buyTicket(seatId);

		money = money -seat.getPrice();


		return new AsyncResult<String>("Booked seat: "+seat+" - Money left: "+money);
	}
}