import java.io.*;
import java.util.*;

public class Driver {

    /**
     * @param args
     */
    public static void main(String[] args) {

        Employees list = new Employees();
        try {

            /* add code here to open the input file called
             * hrdb.txt and create a BufferedReader object.
             * Next, use a while loop to read data from the
             * file one line at a time.  Within the loop, use
             * a StringTokenizer to break up the string input
             * pieces.  Note that id, lastname, and firstname
             * are strings and salary is an integer.  Next,
             * use these four values to create a new Person
             * object and try to call the list's addEmployee
             * method.  Note the types of exceptions that this
             * method might throw.  Remember also that creating
             * a FileReader can throw a FileNotFoundException
             * and creating a BufferedReader throws the more
             * general IOException, a parent of BufferedReader.
             *
             */
            BufferedReader in = new BufferedReader(new FileReader("hrdb.txt"));
            String line = null;
            while((line = in.readLine()) != null) {
                /**
                 * StringTokenizer is not very efficient, String.split is much
                 * better :)
                 */
                StringTokenizer st = new StringTokenizer(line, ",");
                Person p = new Person(
                        while( st.hasMoreTokens() ) { st.nextToken() ; },
                        while( st.hasMoreTokens() ) { st.nextToken() ; },
                        while( st.hasMoreTokens() ) { st.nextToken() ; },
//                      st.nextToken(),
//                      st.nextToken(),   
//                      st.nextToken(),  
                        Integer.parseInt(st.nextToken()));

                list.addEmployee(p);
            }

        } catch (FileNotFoundException ex) {
            System.err.println(ex);
            System.exit(1);
        } catch (IOException ex) {
            System.err.println(ex);
            System.exit(1);
        } catch (DuplicateEmployeeException ex) {
            ex.printStackTrace();
        }
        list.printEmployeeList();

    }
}