Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
CallbackHandlerSelectionKeyAttachment |
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| 0.0;0 | ||||
CallbackHandlerSelectionKeyAttachment$1 |
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| 0.0;0 |
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.util; | |
40 | ||
41 | import com.sun.grizzly.CallbackHandler; | |
42 | import java.nio.channels.SelectionKey; | |
43 | import java.util.concurrent.atomic.AtomicReference; | |
44 | ||
45 | /** | |
46 | * {@link SelectionKey} attachment, which wraps {@link CallbackHandler} | |
47 | * | |
48 | * @author Alexey Stashok | |
49 | */ | |
50 | 21 | public class CallbackHandlerSelectionKeyAttachment extends SelectionKeyAttachmentWrapper<CallbackHandler> { |
51 | 1 | private static ConcurrentLinkedQueuePool<CallbackHandlerSelectionKeyAttachment> pool = |
52 | 22 | new ConcurrentLinkedQueuePool<CallbackHandlerSelectionKeyAttachment>() { |
53 | ||
54 | @Override | |
55 | public CallbackHandlerSelectionKeyAttachment newInstance() { | |
56 | 21 | return new CallbackHandlerSelectionKeyAttachment(); |
57 | } | |
58 | }; | |
59 | ||
60 | // Is used for key pooling | |
61 | 21 | private AtomicReference<SelectionKey> associatedKey = new AtomicReference<SelectionKey>(); |
62 | ||
63 | ||
64 | /** | |
65 | * Creates the {@link CallbackHandler} to the {@link SelectionKey} | |
66 | * CallbackHandler will not be attached directly, but wrapped with | |
67 | * <code>CallbackHandlerSelectionKeyAttachment</code> | |
68 | */ | |
69 | public static CallbackHandlerSelectionKeyAttachment create(SelectionKey key, | |
70 | CallbackHandler callbackHandler) { | |
71 | 197 | CallbackHandlerSelectionKeyAttachment attachment = pool.poll(); |
72 | ||
73 | 197 | attachment.associatedKey.set(key); |
74 | 197 | attachment.setAttachment(callbackHandler); |
75 | 197 | return attachment; |
76 | } | |
77 | ||
78 | 21 | private CallbackHandlerSelectionKeyAttachment() { |
79 | 21 | } |
80 | ||
81 | @Override | |
82 | public void release(SelectionKey selectionKey) { | |
83 | 177 | if (associatedKey.getAndSet(null) == selectionKey) { |
84 | 177 | super.release(selectionKey); |
85 | 177 | pool.offer(this); |
86 | } | |
87 | 177 | } |
88 | ||
89 | /** | |
90 | * Callback handler never should lead to the timeout situation, | |
91 | * as connections could use it, but perform IO operations in sync. mode. | |
92 | * @return null | |
93 | */ | |
94 | @Override | |
95 | public Long getTimeout() { | |
96 | 35 | return null; |
97 | } | |
98 | } |