BookMapper.java

import java.io.FileNotFoundException;
import java.util.List;
import java.util.Scanner;

/**
 * Class with main method to run the book mapper app.
 */
public class BookMapper {

    public static void main(String[] args) throws FileNotFoundException {

        IBookLoader bookLoader = new BookLoader();

        // load the books from the data file
        List<IBook> bookList = bookLoader.loadBooks("books.csv");

        // instantiate the backend
        IBookMapperBackend backend = new BookMapperBackend();

        // add all the books to the backend
        for (IBook book : bookList) backend.addBook(book);

        // instantiate the isbn validator
        ISBNValidator isbnValidator = new ISBNValidator();

        // instantiate the scanner for user input
        Scanner userInputScanner = new Scanner(System.in);

        // instantiate the front end and pass references to the scanner, backend, and isbn validator to it
        IBookMapperFrontend frontend = new BookMapperFrontend(userInputScanner, backend, isbnValidator);

        // start the input loop of the front end
        frontend.runCommandLoop();
    }

}