Leward/AddCustomerOrderServlet.java

## addCustomerOrder.jsp
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>SupRails - Add a customer order</title>
    </head>
    <body>

        <p>Trip from ${trip.departureStation.name} to ${trip.arrivalStation.name} for ${trip.price}€</p>

        <form method="POST">
            <div>
                <label for="firstname">First name</label>
                <input type="text" id="firstname" name="firstname" />
            </div>
            <div>
                <label for="lastname">Last name</label>
                <input type="text" id="lastname" name="lastname" />
            </div>
            <div>
                <label for="email">E-mail</label>
                <input type="text" id="email" name="email" />
            </div>
            <div>
                <input type="submit" value="Add" />
            </div>
        </form>
    </body>
</html>

## AddCustomerOrderServlet.java
package com.supinfo.suprails.web.servlet;

import com.supinfo.suprails.entity.Customer;
import com.supinfo.suprails.entity.CustomerOrder;
import com.supinfo.suprails.entity.Trip;
import com.supinfo.suprails.service.CustomerOrderService;
import com.supinfo.suprails.service.TripService;
import java.io.IOException;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebServlet(name = "AddCustomerOrderServlet", urlPatterns = {"/admin/orders/add"})
public class AddCustomerOrderServlet extends HttpServlet {

    @EJB
    private CustomerOrderService customerOrderService;

    @EJB
    private TripService tripService;

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        Long tripId = new Long(req.getParameter("trip_id"));
        Trip trip = tripService.findTripById(tripId);
        req.setAttribute("trip", trip);
        req.getRequestDispatcher("/jsp/addCustomerOrder.jsp").forward(req, resp);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        Long tripId = new Long(req.getParameter("trip_id"));
        Trip trip = tripService.findTripById(tripId);

        Customer customer = new Customer();
        customer.setEmail(req.getParameter("email"));
        customer.setFirstName(req.getParameter("firstname"));
        customer.setLastName(req.getParameter("lastname"));

        CustomerOrder customerOrder = new CustomerOrder();
        customerOrder.setTrip(trip);
        customerOrder.setCustomer(customer);

        customerOrderService.processCustomerOrder(customerOrder);
        resp.sendRedirect(req.getContextPath() + "/trips");
    }

}

## Customer.java
package com.supinfo.suprails.entity;

import java.io.Serializable;
import javax.persistence.Embeddable;

@Embeddable
public class Customer implements Serializable {

    private static final long serialVersionUID = 1L;

    private String firstName;
    private String lastName;
    private String email;

    public String getFirstName() {
        return firstName;
    }

    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }

    public String getLastName() {
        return lastName;
    }

    public void setLastName(String lastName) {
        this.lastName = lastName;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

}

## CustomerOrder.java
package com.supinfo.suprails.entity;

import java.io.Serializable;
import javax.persistence.Embedded;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;

@Entity
public class CustomerOrder implements Serializable {

    private static final long serialVersionUID = 1L;

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;

    @Embedded
    private Customer customer;

    @ManyToOne
    @JoinColumn
    private Trip trip;

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public Customer getCustomer() {
        return customer;
    }

    public void setCustomer(Customer customer) {
        this.customer = customer;
    }

    public Trip getTrip() {
        return trip;
    }

    public void setTrip(Trip trip) {
        this.trip = trip;
    }

}

## MailService.java
package com.supinfo.suprails.service;

import java.util.Properties;
import java.util.concurrent.Future;
import javax.ejb.AsyncResult;
import javax.ejb.Asynchronous;
import javax.ejb.Stateless;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

@Stateless
@Asynchronous
public class MailService {

    public Future<Void> send(String from, String to, String subject, String body) {
        Properties properties = System.getProperties();
        properties.setProperty("mail.smtp.host", "localhost");
        Session session = Session.getDefaultInstance(properties);
        try {
            MimeMessage message = new MimeMessage(session);
            message.setFrom(new InternetAddress(from));
            message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
            message.setSubject(subject);
            message.setText(body);
            Transport.send(message);
            return new AsyncResult<Void>(null);
        }
        catch (MessagingException e) {
            e.printStackTrace();
            return new AsyncResult<Void>(null);
        }
    }

}
	<%@page contentType="text/html" pageEncoding="UTF-8"%>
	<!DOCTYPE html>
	<html>
	<head>
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
	<title>SupRails - Add a customer order</title>
	</head>
	<body>

	<p>Trip from ${trip.departureStation.name} to ${trip.arrivalStation.name} for ${trip.price}€</p>

	<form method="POST">
	<div>
	<label for="firstname">First name</label>
	<input type="text" id="firstname" name="firstname" />
	</div>
	<div>
	<label for="lastname">Last name</label>
	<input type="text" id="lastname" name="lastname" />
	</div>
	<div>
	<label for="email">E-mail</label>
	<input type="text" id="email" name="email" />
	</div>
	<div>
	<input type="submit" value="Add" />
	</div>
	</form>
	</body>
	</html>
	package com.supinfo.suprails.web.servlet;

	import com.supinfo.suprails.entity.Customer;
	import com.supinfo.suprails.entity.CustomerOrder;
	import com.supinfo.suprails.entity.Trip;
	import com.supinfo.suprails.service.CustomerOrderService;
	import com.supinfo.suprails.service.TripService;
	import java.io.IOException;
	import javax.ejb.EJB;
	import javax.servlet.ServletException;
	import javax.servlet.annotation.WebServlet;
	import javax.servlet.http.HttpServlet;
	import javax.servlet.http.HttpServletRequest;
	import javax.servlet.http.HttpServletResponse;

	@WebServlet(name = "AddCustomerOrderServlet", urlPatterns = {"/admin/orders/add"})
	public class AddCustomerOrderServlet extends HttpServlet {

	@EJB
	private CustomerOrderService customerOrderService;

	@EJB
	private TripService tripService;

	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
	Long tripId = new Long(req.getParameter("trip_id"));
	Trip trip = tripService.findTripById(tripId);
	req.setAttribute("trip", trip);
	req.getRequestDispatcher("/jsp/addCustomerOrder.jsp").forward(req, resp);
	}

	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
	Long tripId = new Long(req.getParameter("trip_id"));
	Trip trip = tripService.findTripById(tripId);

	Customer customer = new Customer();
	customer.setEmail(req.getParameter("email"));
	customer.setFirstName(req.getParameter("firstname"));
	customer.setLastName(req.getParameter("lastname"));

	CustomerOrder customerOrder = new CustomerOrder();
	customerOrder.setTrip(trip);
	customerOrder.setCustomer(customer);

	customerOrderService.processCustomerOrder(customerOrder);
	resp.sendRedirect(req.getContextPath() + "/trips");
	}

	}
	package com.supinfo.suprails.entity;

	import java.io.Serializable;
	import javax.persistence.Embeddable;

	@Embeddable
	public class Customer implements Serializable {

	private static final long serialVersionUID = 1L;

	private String firstName;
	private String lastName;
	private String email;

	public String getFirstName() {
	return firstName;
	}

	public void setFirstName(String firstName) {
	this.firstName = firstName;
	}

	public String getLastName() {
	return lastName;
	}

	public void setLastName(String lastName) {
	this.lastName = lastName;
	}

	public String getEmail() {
	return email;
	}

	public void setEmail(String email) {
	this.email = email;
	}

	}
	package com.supinfo.suprails.entity;

	import java.io.Serializable;
	import javax.persistence.Embedded;
	import javax.persistence.Entity;
	import javax.persistence.GeneratedValue;
	import javax.persistence.GenerationType;
	import javax.persistence.Id;
	import javax.persistence.JoinColumn;
	import javax.persistence.ManyToOne;

	@Entity
	public class CustomerOrder implements Serializable {

	private static final long serialVersionUID = 1L;

	@Id
	@GeneratedValue(strategy = GenerationType.AUTO)
	private Long id;

	@Embedded
	private Customer customer;

	@ManyToOne
	@JoinColumn
	private Trip trip;

	public Long getId() {
	return id;
	}

	public void setId(Long id) {
	this.id = id;
	}

	public Customer getCustomer() {
	return customer;
	}

	public void setCustomer(Customer customer) {
	this.customer = customer;
	}

	public Trip getTrip() {
	return trip;
	}

	public void setTrip(Trip trip) {
	this.trip = trip;
	}

	}
	package com.supinfo.suprails.service;

	import java.util.Properties;
	import java.util.concurrent.Future;
	import javax.ejb.AsyncResult;
	import javax.ejb.Asynchronous;
	import javax.ejb.Stateless;
	import javax.mail.Message;
	import javax.mail.MessagingException;
	import javax.mail.Session;
	import javax.mail.Transport;
	import javax.mail.internet.InternetAddress;
	import javax.mail.internet.MimeMessage;

	@Stateless
	@Asynchronous
	public class MailService {

	public Future<Void> send(String from, String to, String subject, String body) {
	Properties properties = System.getProperties();
	properties.setProperty("mail.smtp.host", "localhost");
	Session session = Session.getDefaultInstance(properties);
	try {
	MimeMessage message = new MimeMessage(session);
	message.setFrom(new InternetAddress(from));
	message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
	message.setSubject(subject);
	message.setText(body);
	Transport.send(message);
	return new AsyncResult<Void>(null);
	}
	catch (MessagingException e) {
	e.printStackTrace();
	return new AsyncResult<Void>(null);
	}
	}

	}