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MultiClientSocketFactory.javaAPI DocExample2723Wed Apr 19 11:20:16 BST 2000examples.rmisocfac

MultiClientSocketFactory.java

/*
 * Copyright (c) 1998, 1999 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
 * modify and redistribute this software in source and binary code form,
 * provided that i) this copyright notice and license appear on all copies of
 * the software; and ii) Licensee does not utilize the software in a manner
 * which is disparaging to Sun.
 *
 * This software is provided "AS IS," without a warranty of any kind. ALL
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 * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
 * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
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 * OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS
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 * This software is not designed or intended for use in on-line control of
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package examples.rmisocfac;

import java.io.*;
import java.net.*;
import java.rmi.server.*;


public class MultiClientSocketFactory
    implements RMIClientSocketFactory, Serializable
{
    /* 
     * Get the default RMISocketFactory 
     */
    private static RMISocketFactory defaultFactory =
	RMISocketFactory.getDefaultSocketFactory();

    private String protocol;
    private byte[] data;

    public MultiClientSocketFactory(String protocol, byte[] data) {
	this.protocol = protocol;
	this.data = data;
    }
    
    /* 
     * Override createSocket to call the default 
     * RMISocketFactory's createSocket method. This
     * way, you'll get a TCP connection if you don't
     * specify compression or xor.
     */
    public Socket createSocket(String host, int port)
	throws IOException
    {
	if (protocol.equals("compression")) {
	    return new CompressionSocket(host, port);
	    
	} else if (protocol.equals("xor")) {
	    if (data == null || data.length != 1)
		throw new IOException("invalid argument for XOR protocol");
	    return new XorSocket(host, port, data[0]);

	} 

	return defaultFactory.createSocket(host, port);  
    }
}