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1 /*
2  * Copyright (c) 2004, 2011, Oracle and/or its affiliates. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  *
8  *   - Redistributions of source code must retain the above copyright
9  *     notice, this list of conditions and the following disclaimer.
10  *
11  *   - Redistributions in binary form must reproduce the above copyright
12  *     notice, this list of conditions and the following disclaimer in the
13  *     documentation and/or other materials provided with the distribution.
14  *
15  *   - Neither the name of Oracle nor the names of its
16  *     contributors may be used to endorse or promote products derived
17  *     from this software without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
20  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
26  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
27  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
28  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
29  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 /*
33  * This source code is provided to illustrate the usage of a given feature
34  * or technique and has been deliberately simplified. Additional steps
35  * required for a production-quality application, such as security checks,
36  * input validation and proper error handling, might not be present in
37  * this sample code.
38  */
39 
40 
41 import java.io.*;
42 import java.nio.channels.*;
43 import javax.net.ssl.*;
44 
45 /**
46  * A Runnable class which sits in a loop accepting SocketChannels,
47  * then registers the Channels with the read/write Selector.
48  *
49  * @author Mark Reinhold
50  * @author Brad R. Wetmore
51  */
52 class Acceptor implements Runnable {
53 
54     private ServerSocketChannel ssc;
55     private Dispatcher d;
56 
57     private SSLContext sslContext;
58 
Acceptor(ServerSocketChannel ssc, Dispatcher d, SSLContext sslContext)59     Acceptor(ServerSocketChannel ssc, Dispatcher d, SSLContext sslContext) {
60         this.ssc = ssc;
61         this.d = d;
62         this.sslContext = sslContext;
63     }
64 
run()65     public void run() {
66         for (;;) {
67             try {
68                 SocketChannel sc = ssc.accept();
69 
70                 ChannelIO cio = (sslContext != null ?
71                     ChannelIOSecure.getInstance(
72                         sc, false /* non-blocking */, sslContext) :
73                     ChannelIO.getInstance(
74                         sc, false /* non-blocking */));
75 
76                 RequestHandler rh = new RequestHandler(cio);
77 
78                 d.register(cio.getSocketChannel(), SelectionKey.OP_READ, rh);
79 
80             } catch (IOException x) {
81                 x.printStackTrace();
82                 break;
83             }
84         }
85     }
86 }
87