AcceptHandler.java

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/*
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 *
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 * modification, are permitted provided that the following conditions
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 *
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 *     notice, this list of conditions and the following disclaimer.
 *
 *   - 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.
 *
 *   - Neither the name of Oracle nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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/*
 * This source code is provided to illustrate the usage of a given feature
 * or technique and has been deliberately simplified. Additional steps
 * required for a production-quality application, such as security checks,
 * input validation and proper error handling, might not be present in
 * this sample code.
 */
 
 
import java.io.*;
import java.nio.channels.*;
import javax.net.ssl.*;
 
class AcceptHandler implements Handler {
 
    private ServerSocketChannel channel;
    private Dispatcher dsp;
 
    private SSLContext sslContext;
 
    AcceptHandler(ServerSocketChannel ssc, Dispatcher dsp,
            SSLContext sslContext) {
        channel = ssc;
        this.dsp = dsp;
        this.sslContext = sslContext;
    }
 
    public void handle(SelectionKey sk) throws IOException {
 
        if (!sk.isAcceptable())
            return;
 
        SocketChannel sc = channel.accept();
        if (sc == null) {
            return;
        }
 
        ChannelIO cio = (sslContext != null ?
            ChannelIOSecure.getInstance(
                sc, false /* non-blocking */, sslContext) :
            ChannelIO.getInstance(
                sc, false /* non-blocking */));
 
        RequestHandler rh = new RequestHandler(cio);
        dsp.register(cio.getSocketChannel(), SelectionKey.OP_READ, rh);
    }
}