import java.util.*;
import java.beans.XMLDecoder;
import java.beans.XMLEncoder;
import java.io.*;

public class Model implements Serializable {
	private ArrayList<Book> books;
	private ArrayList<Author> authors;

	private transient Scanner input;

	public Model() {
		books = new ArrayList<Book>();
		authors = new ArrayList<Author>();

	}

	public void runApp() {
		input = new Scanner(System.in);
		String response;

		do {
			System.out.println("==================================================");
			System.out.println("=========== Welcome to the book store! ===========");
			System.out.println("==================================================");
			System.out.println("1) Add a book to the catalouge");
			System.out.println("2) Add a author to the catalogue");
			System.out.println("3) Print the information");
			System.out.println("4) Save the information to a file (Serializable)");
			System.out.println("5) Load the information from a file (Serializable)");
			System.out.println("6) Save the information to a file (XML)");
			System.out.println("7) Load the information from a file (XML)");
			System.out.println("8) Save the information to a file (Text)");
			System.out.println("9) Load the information from a file (Text)");
			System.out.println("Q) Quit the application");
			response = input.nextLine();

			if (response.equals("1")) {
				System.out.println("Enter Authors name:- ");
				String x = input.nextLine();
				Author who = searchAuthors(x);
				if (who == null) {
					System.out.println("The Author needs to exist first!");
				} else {
					System.out.println("Enter the title of the book");
					String n = input.nextLine();
					System.out.println("Enter the price of the book");
					int p = input.nextInt();

					Book what = new Book(n, p, who);
					books.add(what);
					who.add(what);
				}
			}

			else if (response.equals("2")) {
				System.out.println("Enter the name of the Author");
				String n = input.nextLine();
				System.out.println("Enter the nationality of the Author");
				String nat = input.nextLine();
				Author newOne = new Author(n, nat, null);
				authors.add(newOne);
			}

			else if (response.equals("3")) {
				for (Author a : authors) {
					System.out.println(a.toString());
				}
			}

			else if (response.equals("4")) {
				try {
					write("file.file");
				} catch (IOException e) {
					System.out.println("Error whilst writing file");
				}
			}

			else if (response.equals("5")) {
				read("file.file");
			}

			else if (response.equals("6")) {
				try {
					writeXML("ExampleFile.xml");
				}

				catch (IOException e) {
					System.out.println("Error Whilst Saving File.");
				}
			}

			else if (response.equals("7")) {
				try {
					readXML("ExampleFile.xml");
				}

				catch (IOException e) {
					System.out.println("Error whilst Loading File");
				}
			}

			else if (response.equals("8")) {

				try {
					saveTextAuthor("AuthorText.txt");
					saveTextBook("BookText.txt");
				} catch (IOException e) {
					System.out.println("Error Whilst Saving Text");
				}
			}

				else if (response.equals("9")) {
					try {
						loadTextAuthor("AuthorText.txt");
						loadTextBook("BookText.txt");
					}
					catch (IOException e) {
						System.out.println("Error whilst reading text!");
					}

				}

		} while (!(response.equals("Q") || response.equals("q")));
	}

	public Author searchAuthors(String find) {
		Author who = null;
		for (Author a : authors) {
			if (a.getName().equals(find))
				who = a;
		}
		return who;
	}

	public Book searchBooks(String find) {
		Book what = null;
		for (Book b : books) {
			if (b.getTitle().equals(find))
				what = b;
		}
		return what;
	}

	/* -------------------- Saving and Loading XML -------------------- */

	public void writeXML(String fn) throws IOException {

		XMLEncoder encoder = new XMLEncoder(new BufferedOutputStream(
				new FileOutputStream(fn)));
		encoder.writeObject(this);
		encoder.close();

		}

	public static Author readXML(String fn) throws IOException {
		Author result = null;
		XMLDecoder decoder = new XMLDecoder(new BufferedInputStream(
				new FileInputStream(fn)));

		result = (Author) decoder.readObject();
		decoder.close();
		return result;
	}


	/* -------------------- Saving and Loading Text -------------------- */

	public void saveTextBook(String fn) throws IOException {
		PrintWriter outfile = new PrintWriter(new OutputStreamWriter(
				new FileOutputStream(fn)));

		outfile.println(books.size());

		for (Book b : books) {
			outfile.println(b.getTitle());
			outfile.println(b.getPrice());
			outfile.println(b.getAuthor().getName());
		}

		outfile.close();
	}

	public void saveTextAuthor(String fn) throws IOException {
		PrintWriter outfile = new PrintWriter(new OutputStreamWriter(
				new FileOutputStream(fn)));

		outfile.println(authors.size());

		for (Author a : authors) {
			outfile.println(a.getName());
			outfile.println(a.getNationality());
		}
		outfile.close();
	}

	public void loadTextBook(String fn) throws IOException {
		Scanner infile = new Scanner(new InputStreamReader(new FileInputStream(
				fn)));

		int num = infile.nextInt();
		infile.nextLine();

		for (int i = 0; i < num; i++) {
			String t = infile.nextLine();
			double p = infile.nextDouble();
		}
		infile.close();

	}

	public void loadTextAuthor(String fn) throws IOException {
		Scanner infile = new Scanner(new InputStreamReader(new FileInputStream(
				fn)));

		int num = infile.nextInt();
		infile.nextLine();

		for (int i = 0; i < num; i++) {
			String n = infile.nextLine();
			String nat = infile.nextLine();

		}
		infile.close();
	}

/* -------------------- Saving and Loading Serialzable -------------------- */


	public void write(String fn) throws IOException {
		ObjectOutputStream oos = new ObjectOutputStream(
				new FileOutputStream(fn));
		oos.writeObject(this);
		oos.close();
	}

	public static Model read(String fn) {
		Model result = null;
		try {
			ObjectInputStream ois = new ObjectInputStream(new FileInputStream(
					fn));

			result = (Model) ois.readObject();
		} catch (ClassNotFoundException cnf) {
			throw new IOException("Problem loading serialized file " + fn);
		} catch (IOException e) {
			System.out.println("No such file or problem");
		} finally {
			return result;
		}
	}

}

import java.beans.XMLEncoder;
import java.io.*;
import java.util.ArrayList;

public class Book implements Serializable {

	private String title;
	private double price;
	private Author who;

	public Book(String t, double p, Author w) {
		title=t;
		price=p;
		who = w;
	}

		public String toString() {
		return "The title of the book is " +title+ " and it's price is �"+price;
	}

	public String getTitle() {
		return title;
	}

	public void setTitle(String title) {
		this.title = title;
		}

	public double getPrice() {
		return price;
	}

	public void setPrice(double price) {
		this.price = price;
	}

	public Author getAuthor() {
		return who;
	}

	public void setAuthor(Author who) {
		this.who = who;
	}

	public Book() {

	}

	public void setAuthor(ArrayList<Author> authors) {
        this.who = who;
}


}

import java.beans.XMLEncoder;
import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.Serializable;
import java.util.ArrayList;
import java.io.*;

public class Author implements Serializable {

	public String name;
	public String nationality;
	private ArrayList<Book> books;

	public Author(String n, String nat, Book b) {
		name = n;
		nationality = nat;
		books = new ArrayList<Book>();
	}

	public String toString() {
		String ret = "The Authors name is " + name
				+ " and his/hers nationality is" + nationality + "\n";
		for (Book b : books) {
			ret += b.toString() + "\n";
		}
		return ret;
	}

	public String getName() {
		return name;
	}

	public void setName(String Name) {
		this.name = name;
	}

	public String getNationality() {
		return nationality;
	}

	public void setNationality(String Nationality) {
		this.nationality = nationality;
	}

	public void add(Book b) {
		books.add(b);
	}

	public void remove(Book b) {
		books.remove(b);
	}

	public Author() {

	}

	public void setBooks(ArrayList<Book> books) {
		this.books = books;
	}

	public ArrayList<Book> getBooks() {
		return books;
	}

}

import java.util.*;

public class Main {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Scanner in=new Scanner(System.in);
		System.out.println("Do you want to load a previously saved fine?");
		System.out.println("1 - Yes");
		System.out.println("2 - No");
		String response = in.nextLine();
		Model model;
		if (response.equals("1")) {
			model =Model.read("file.file");
			if (model==null)
				model = new Model();
		}
		else
			model = new Model();
		model.runApp();
	}
}