//@author Rhandi Martin

import java.net.*;
import java.io.*;

public class Server extends Thread {

	private static ThreadGroup parent = new ThreadGroup("The Sections");
	private ThreadGroup children;
	private ServerSocket sSocket;
	private Socket cSocket;
	private BufferedReader br;
	private PrintWriter pw;
	private int port;

	public Server(int port) {
		super(parent,"Operations");
		this.port = port;
		children = new ThreadGroup(parent,"Section One");
	} //end ctor(int)

	public void run() {
		String input ="";

		try {
			sSocket = new ServerSocket(port);
			System.out.println("birkhoff1.one.sections.mil:"+port+" is up!");

			while(true) {
				cSocket = sSocket.accept();
				System.out.println("Status: User connection established");
				br = new BufferedReader(new InputStreamReader(cSocket.getInputStream()));
				pw = new PrintWriter(cSocket.getOutputStream(),true);
				pw.println("Connected to birkhoff1.one.sections.mil on port "+port+"...\nEnter your nickname: ");
				input = br.readLine();

				if(input!=null && !(input.equals(""))) {
					input = input.trim();
					new ServerThread(children,input,cSocket).start();
				} //end if
				System.out.println("Status: new user connected");
			} //end while
		} catch(IOException ioe) {
			System.err.printf("Unable to establish server on port %d - Exiting\n",port);
		} catch(Exception e) {
			System.err.printf("Unable to establish server on port %d - Exiting\n",port);
		} //end t-c block
	} //end method - void init()
} //end class