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Diffstat (limited to 'libjava/java/nio/channels/spi/SelectorProvider.java')
-rw-r--r-- | libjava/java/nio/channels/spi/SelectorProvider.java | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/libjava/java/nio/channels/spi/SelectorProvider.java b/libjava/java/nio/channels/spi/SelectorProvider.java deleted file mode 100644 index db4e65fe14e..00000000000 --- a/libjava/java/nio/channels/spi/SelectorProvider.java +++ /dev/null @@ -1,151 +0,0 @@ -/* SelectorProvider.java - Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU Classpath is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 USA. - -Linking this library statically or dynamically with other modules is -making a combined work based on this library. Thus, the terms and -conditions of the GNU General Public License cover the whole -combination. - -As a special exception, the copyright holders of this library give you -permission to link this library with independent modules to produce an -executable, regardless of the license terms of these independent -modules, and to copy and distribute the resulting executable under -terms of your choice, provided that you also meet, for each linked -independent module, the terms and conditions of the license of that -module. An independent module is a module which is not derived from -or based on this library. If you modify this library, you may extend -this exception to your version of the library, but you are not -obligated to do so. If you do not wish to do so, delete this -exception statement from your version. */ - -package java.nio.channels.spi; - -import gnu.java.nio.SelectorProviderImpl; - -import java.io.IOException; -import java.nio.channels.DatagramChannel; -import java.nio.channels.Pipe; -import java.nio.channels.ServerSocketChannel; -import java.nio.channels.SocketChannel; - - -/** - * @author Michael Koch - * @since 1.4 - */ -public abstract class SelectorProvider -{ - private static SelectorProvider systemDefaultProvider; - - /** - * Initializes the selector provider. - * - * @exception SecurityException If a security manager has been installed and - * it denies @see RuntimePermission ("selectorProvider"). - */ - protected SelectorProvider() - { - SecurityManager sm = System.getSecurityManager(); - if (sm != null) - sm.checkPermission(new RuntimePermission("selectorProvider")); - } - - /** - * Opens a datagram channel. - * - * @return a new datagram channel object - * - * @exception IOException if an error occurs - */ - public abstract DatagramChannel openDatagramChannel() - throws IOException; - - /** - * Opens a pipe. - * - * @return a new pipe object - * - * @exception IOException if an error occurs - */ - public abstract Pipe openPipe() throws IOException; - - /** - * Opens a selector. - * - * @return a new selector object - * - * @exception IOException if an error occurs - */ - public abstract AbstractSelector openSelector() throws IOException; - - /** - * Opens a server socket channel. - * - * @return a new server socket channel object - * - * @exception IOException if an error occurs - */ - public abstract ServerSocketChannel openServerSocketChannel() - throws IOException; - - /** - * Opens a socket channel. - * - * @return a new socket channel object - * - * @exception IOException if an error occurs - */ - public abstract SocketChannel openSocketChannel() throws IOException; - - /** - * Returns the system-wide default selector provider for this invocation - * of the Java virtual machine. - * - * @return the default seletor provider - */ - public static synchronized SelectorProvider provider() - { - if (systemDefaultProvider == null) - { - String propertyValue = - System.getProperty("java.nio.channels.spi.SelectorProvider"); - - if (propertyValue == null || propertyValue.equals("")) - systemDefaultProvider = new SelectorProviderImpl(); - else - { - try - { - systemDefaultProvider = - (SelectorProvider) Class.forName(propertyValue) - .newInstance(); - } - catch (Exception e) - { - System.err.println("Could not instantiate class: " - + propertyValue); - systemDefaultProvider = new SelectorProviderImpl(); - } - } - } - - return systemDefaultProvider; - } -} |