// ShowSavingAClassNet - Client side that writes some objects to a stream
//
// Copyright (C) 1996 by Rinaldo Di Giorgio <rinaldo@digiorgio.com>.  All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE.
import java.applet.Applet;
import java.util.*;
import java.io.*;
import java.net.*;
/**
 *	Write some objects over the network to a remote server that reads the
 *	stream and procceds to save the objects to disk.
*/
public class ShowSavingAClassNet extends Applet {

	DataOutputStream os = null;
	ObjectOutput s = null;
	int	PortNumber = 2000;
	String	ServerName = "traveler";

	public void initMain(String s, int p) {
		ServerName = s;
		PortNumber = p;	
		init();
	}
	public void init() {
		Date	d = new Date();
		//	Get the portnumber and servername and allow to be called from a
		//	java main program also
		try {
                	String  param;
                	param = getParameter("PortNumber");
                	if (param != null)
                       		PortNumber = Integer.parseInt(param);
                	param = getParameter("ServerName");
                	if (param != null)
				ServerName = param;
		} catch ( NullPointerException e) {	// Must be called from a main ignore
		}
		try {
                	Socket skt = new Socket(ServerName,PortNumber);
                        os = new DataOutputStream(skt.getOutputStream() );
                } catch(Exception e) {
                        System.out.println(e);
			System.exit(0);
                }
		try {
			s = new ObjectOutputStream(os);
		} catch ( Exception e ) {
                        System.out.println(e);
			System.out.println("Unable to open stream as an object stream");
		}
		try {
			s.writeObject("Today");
			s.writeObject(d);
			os.close();
			System.out.println("Object written");
		} catch ( Exception e ) {
                        System.out.println(e);
			System.out.println("Unable to write Objects");
		}
	}
	////////////////////////////////////////////////////////////////////////////
	//	Example of an applet and a main sharing code and be parameter
	//	driven. 
	////////////////////////////////////////////////////////////////////////////
        public static void main(String args[]) {
                ShowSavingAClassNet showSavingAClassNet = new ShowSavingAClassNet();
                if (args.length < 2) {
                        System.out.println("Usage: ServerName PortNumber");
                        System.exit(0);
                } else {
                	String ServerName = new String(args[0]);		// Notice local scope of ServerName and PortNumber
                        int PortNumber = Integer.parseInt(args[1]);
                	showSavingAClassNet.initMain(ServerName, PortNumber);
                }
        }
}