DefaultAsynchronousChannelProvider.java revision 49965c1dc9da104344f4893a05e45795a5740d20 
1/*
2 * Copyright (c) 2008, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package sun.nio.ch;
27
28import java.nio.channels.spi.AsynchronousChannelProvider;
29import java.security.AccessController;
30import sun.security.action.GetPropertyAction;
31
32/**
33 * Creates this platform's default asynchronous channel provider
34 */
35
36public class DefaultAsynchronousChannelProvider {
37
38    /**
39     * Prevent instantiation.
40     */
41    private DefaultAsynchronousChannelProvider() { }
42
43    /**
44     * Returns the default AsynchronousChannelProvider.
45     */
46    public static AsynchronousChannelProvider create() {
47        String osname = AccessController
48            .doPrivileged(new GetPropertyAction("os.name"));
49        // Android-changed: We don't compile SolarisAsynchronousChannelProvider.
50        //
51        // if (osname.equals("SunOS"))
52        //     return new SolarisAsynchronousChannelProvider();
53        if (osname.equals("Linux"))
54            return new LinuxAsynchronousChannelProvider();
55        if (osname.contains("OS X"))
56            return new BsdAsynchronousChannelProvider();
57        throw new InternalError("platform not recognized");
58    }
59
60}
61