1e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera/* 2e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * Copyright (c) 2008, 2012, Oracle and/or its affiliates. All rights reserved. 3e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * 5e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * This code is free software; you can redistribute it and/or modify it 6e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * under the terms of the GNU General Public License version 2 only, as 7e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * published by the Free Software Foundation. Oracle designates this 8e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * particular file as subject to the "Classpath" exception as provided 9e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * by Oracle in the LICENSE file that accompanied this code. 10e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * 11e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * This code is distributed in the hope that it will be useful, but WITHOUT 12e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * version 2 for more details (a copy is included in the LICENSE file that 15e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * accompanied this code). 16e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * 17e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * You should have received a copy of the GNU General Public License version 18e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * 2 along with this work; if not, write to the Free Software Foundation, 19e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * 21e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * or visit www.oracle.com if you need additional information or have any 23e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * questions. 24e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera */ 25e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera 26e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmerapackage sun.nio.ch; 27e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera 28e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmeraimport java.nio.channels.spi.AsynchronousChannelProvider; 29e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmeraimport java.security.AccessController; 30e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmeraimport sun.security.action.GetPropertyAction; 31e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera 32e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera/** 33e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * Creates this platform's default asynchronous channel provider 34e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera */ 35e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera 36e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmerapublic class DefaultAsynchronousChannelProvider { 37e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera 38e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera /** 39e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * Prevent instantiation. 40e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera */ 41e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera private DefaultAsynchronousChannelProvider() { } 42e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera 43519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera @SuppressWarnings("unchecked") 44519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera private static AsynchronousChannelProvider createProvider(String cn) { 45519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera Class<AsynchronousChannelProvider> c; 46519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera try { 47519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera c = (Class<AsynchronousChannelProvider>)Class.forName(cn); 48519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera } catch (ClassNotFoundException x) { 49519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera throw new AssertionError(x); 50519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera } 51519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera try { 52519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera return c.newInstance(); 53519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera } catch (IllegalAccessException | InstantiationException x) { 54519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera throw new AssertionError(x); 55519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera } 56519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera 57519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera } 58519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera 59e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera /** 60e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera * Returns the default AsynchronousChannelProvider. 61e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera */ 62e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera public static AsynchronousChannelProvider create() { 63519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera // Android-changed: Android is Linux based. 64519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera // String osname = AccessController 65519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera // .doPrivileged(new GetPropertyAction("os.name")); 66e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera // 67e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera // if (osname.equals("SunOS")) 68e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera // return new SolarisAsynchronousChannelProvider(); 69519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera // if (osname.equals("Linux")) 70519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera return createProvider("sun.nio.ch.LinuxAsynchronousChannelProvider"); 71519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera // if (osname.contains("OS X")) 72519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera // return new BsdAsynchronousChannelProvider(); 73519adb2f61bb2bfa6cc993b1ca15cf7022b96697Shubham Ajmera // throw new InternalError("platform not recognized"); 74e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera } 75e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera 76e318a0eaa02b186f9f135016e95a6282fe9a83cbShubham Ajmera} 77