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

//
//
// FingerBean
//
// Provides simple finger protocol capability,
// encapsulated as a non-visual Java Bean.
//
// Written by             : David Reilly
// Release details        : Public domain source/binary
// Last modification date : November 21, 1997
//
public class FingerBean 
{
	// Private member variables
	private String m_username;
	private String m_hostname;

	// String response from server
	private String m_serverResponse;

	// Constants
	private static final int fingerPort = 79;
	private static final String noConnection = "No connection established";

	// FingerBean default constructor
	public FingerBean()
	{
		// No connection has been established yet
		m_serverResponse = noConnection;
	}

	// FingerBean full constructor
	public FingerBean( String user, String host )
	{
		// Call default constructor
		this();

		// Assign to class member variables
		m_username = user;
		m_hostname = host;		
	}

	// Username accessor : GET
	public String getUsername()
	{
		// Return username
		return m_username;
	}

	// Username accessor : SET
	public void setUsername(String username)
	{
		// Assign to local member variable
		m_username = username;

		// Reset server response, as its a new user
		m_serverResponse = noConnection;
	}

	// Hostname accessor : GET
	public String getHostname()
	{
		// Return username
		return m_hostname;
	}

	// Username accessor : SET
	public void setHostname(String hostname)
	{
		// Assign to local member variable
		m_hostname = hostname;

		// Reset server response, as its a new user
		m_serverResponse = noConnection;
	}

	// Connects to a finger server
	public void connect() throws IOException
	{
		// Connect to finger server
		Socket fingerSocket = new Socket ( m_hostname, fingerPort );

		// Create a bufferedinput stream from the socket
		BufferedInputStream bin = new BufferedInputStream(fingerSocket.getInputStream());

		// Create a printstream to the socket
		PrintStream out = new PrintStream(fingerSocket.getOutputStream());

		// Create a string buffer to store response
		StringBuffer buf = new StringBuffer();

		// Write username to finger server
		out.println ( m_username );

		// Read response
		for (;;)
		{
			// Read data
			int data = bin.read();

			// Convert int to character			
			char character = (char) data;

			// Have we reached the end?
			if (data == -1)
				break;
			else
				// Append the line to our buffer
				buf.append(character);
		}

		// Assign contents of buffer to our serverResponse
		m_serverResponse = new String(buf);
	}

	// Server response accessor : GET
	public String getServerResponse()
	{
		// Return server response
		return m_serverResponse;
	}

}