Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
TCPAsyncQueueReader |
|
| 4.0;4 |
1 | /* | |
2 | * | |
3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
4 | * | |
5 | * Copyright 2007-2008 Sun Microsystems, Inc. All rights reserved. | |
6 | * | |
7 | * The contents of this file are subject to the terms of either the GNU | |
8 | * General Public License Version 2 only ("GPL") or the Common Development | |
9 | * and Distribution License("CDDL") (collectively, the "License"). You | |
10 | * may not use this file except in compliance with the License. You can obtain | |
11 | * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html | |
12 | * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific | |
13 | * language governing permissions and limitations under the License. | |
14 | * | |
15 | * When distributing the software, include this License Header Notice in each | |
16 | * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt. | |
17 | * Sun designates this particular file as subject to the "Classpath" exception | |
18 | * as provided by Sun in the GPL Version 2 section of the License file that | |
19 | * accompanied this code. If applicable, add the following below the License | |
20 | * Header, with the fields enclosed by brackets [] replaced by your own | |
21 | * identifying information: "Portions Copyrighted [year] | |
22 | * [name of copyright owner]" | |
23 | * | |
24 | * Contributor(s): | |
25 | * | |
26 | * If you wish your version of this file to be governed by only the CDDL or | |
27 | * only the GPL Version 2, indicate your decision by adding "[Contributor] | |
28 | * elects to include this software in this distribution under the [CDDL or GPL | |
29 | * Version 2] license." If you don't indicate a single choice of license, a | |
30 | * recipient has the option to distribute your version of this file under | |
31 | * either the CDDL, the GPL Version 2 or to extend the choice of license to | |
32 | * its licensees as provided above. However, if you add GPL Version 2 code | |
33 | * and therefore, elected the GPL Version 2 license, then the option applies | |
34 | * only if the new code is made subject to such option by the copyright | |
35 | * holder. | |
36 | * | |
37 | */ | |
38 | ||
39 | package com.sun.grizzly.async; | |
40 | ||
41 | import com.sun.grizzly.SelectorHandler; | |
42 | import java.io.EOFException; | |
43 | import java.io.IOException; | |
44 | import java.net.SocketAddress; | |
45 | import java.nio.ByteBuffer; | |
46 | import java.nio.channels.ReadableByteChannel; | |
47 | import java.nio.channels.SocketChannel; | |
48 | ||
49 | /** | |
50 | * | |
51 | * @author Alexey Stashok | |
52 | */ | |
53 | public class TCPAsyncQueueReader extends AbstractAsyncQueueReader { | |
54 | public TCPAsyncQueueReader(SelectorHandler selectorHandler) { | |
55 | 130 | super(selectorHandler); |
56 | 130 | } |
57 | ||
58 | protected SocketAddress doRead(ReadableByteChannel channel, ByteBuffer byteBuffer, | |
59 | AsyncQueueDataProcessor readPostProcessor) throws IOException { | |
60 | 256075 | if (readPostProcessor != null) { |
61 | 123460 | ByteBuffer inputByteBuffer = null; |
62 | 123460 | int oldPosition = byteBuffer.position(); |
63 | ||
64 | do { | |
65 | 123460 | inputByteBuffer = readPostProcessor.getInternalByteBuffer(); |
66 | 123460 | int readBytes = doRead(channel, inputByteBuffer); |
67 | 123460 | if (readBytes > 0) { |
68 | 8343 | readPostProcessor.process(byteBuffer); |
69 | 115117 | } else if (readBytes == -1) { |
70 | 0 | if (byteBuffer.position() == oldPosition) { |
71 | 0 | throw new EOFException(); |
72 | } else { | |
73 | break; | |
74 | } | |
75 | } | |
76 | 123460 | } while(byteBuffer.hasRemaining() && |
77 | !inputByteBuffer.hasRemaining()); | |
78 | 123460 | } else { |
79 | 132615 | doRead(channel, byteBuffer); |
80 | } | |
81 | ||
82 | 256075 | return ((SocketChannel) channel).socket().getRemoteSocketAddress(); |
83 | } | |
84 | ||
85 | private int doRead(ReadableByteChannel channel, ByteBuffer byteBuffer) | |
86 | throws IOException { | |
87 | 256075 | int readBytes = 0; |
88 | 256075 | int lastReadBytes = 0; |
89 | do { | |
90 | 278370 | lastReadBytes = channel.read(byteBuffer); |
91 | 278370 | if (lastReadBytes > 0) { |
92 | 22395 | readBytes += lastReadBytes; |
93 | 255975 | } else if (lastReadBytes == -1 && readBytes == 0) { |
94 | 0 | readBytes = -1; |
95 | } | |
96 | ||
97 | 278370 | } while(lastReadBytes > 0 && byteBuffer.hasRemaining()); |
98 | ||
99 | 256075 | return readBytes; |
100 | } | |
101 | } |