author | alanb |
Sun, 15 Feb 2009 12:25:54 +0000 | |
changeset 2057 | 3acf8e5e2ca0 |
child 5506 | 202f599c92aa |
permissions | -rw-r--r-- |
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/* |
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* Copyright 2008-2009 Sun Microsystems, Inc. All Rights Reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Sun designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Sun in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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*/ |
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package sun.nio.fs; |
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|
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import java.nio.file.spi.FileSystemProvider; |
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import java.security.AccessController; |
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import java.security.PrivilegedAction; |
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import sun.security.action.GetPropertyAction; |
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|
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/** |
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* Creates this platform's default FileSystemProvider. |
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*/ |
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public class DefaultFileSystemProvider { |
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private DefaultFileSystemProvider() { } |
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@SuppressWarnings("unchecked") |
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private static FileSystemProvider createProvider(final String cn) { |
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return AccessController |
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.doPrivileged(new PrivilegedAction<FileSystemProvider>() { |
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public FileSystemProvider run() { |
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Class<FileSystemProvider> c; |
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try { |
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c = (Class<FileSystemProvider>)Class.forName(cn, true, null); |
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} catch (ClassNotFoundException x) { |
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throw new AssertionError(x); |
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} |
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try { |
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return c.newInstance(); |
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} catch (IllegalAccessException x) { |
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throw new AssertionError(x); |
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} catch (InstantiationException x) { |
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throw new AssertionError(x); |
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} |
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}}); |
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} |
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/** |
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* Returns the default FileSystemProvider. |
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*/ |
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public static FileSystemProvider create() { |
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String osname = AccessController |
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.doPrivileged(new GetPropertyAction("os.name")); |
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if (osname.equals("SunOS")) |
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return createProvider("sun.nio.fs.SolarisFileSystemProvider"); |
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if (osname.equals("Linux")) |
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return createProvider("sun.nio.fs.LinuxFileSystemProvider"); |
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throw new AssertionError("Platform not recognized"); |
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} |
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} |