Initial revision

From-SVN: r102074

libjava/classpath/gnu/java/nio/NIOServerSocket.java

@@ -0,0 +1,106 @@
+/* NIOServerSocket.java -- 
+   Copyright (C) 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 gnu.java.nio;
+
+import gnu.java.net.PlainSocketImpl;
+
+import java.io.IOException;
+import java.lang.reflect.Method;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.nio.channels.ServerSocketChannel;
+import java.nio.channels.SocketChannel;
+import java.security.AccessController;
+import java.security.PrivilegedExceptionAction;
+
+/**
+ * @author Michael Koch (konqueror@gmx.de)
+ */
+public final class NIOServerSocket extends ServerSocket
+{
+  private ServerSocketChannelImpl channel;
+    
+  protected NIOServerSocket (ServerSocketChannelImpl channel)
+    throws IOException
+  {
+    super();
+    this.channel = channel;
+  }
+
+  public PlainSocketImpl getPlainSocketImpl()
+  {
+    try
+      {
+	final Object t = this;
+	final Method method = ServerSocket.class.getDeclaredMethod("getImpl", new Class[0]);
+	method.setAccessible(true);
+	PrivilegedExceptionAction action = new PrivilegedExceptionAction()
+	  {
+	    public Object run() throws Exception
+	    {
+	      return method.invoke(t, new Object[0]);
+	    }
+	  };
+	return (PlainSocketImpl) AccessController.doPrivileged(action);
+      }
+    catch (Exception e)
+      {
+	// This should never happen.
+	Error error = new InternalError("unable to invoke method ServerSocket.getImpl()");
+	error.initCause(e);
+	throw error;
+      }
+  }
+
+  public ServerSocketChannel getChannel()
+  {
+    return channel;
+  }
+
+  public Socket accept() throws IOException
+  {
+    SecurityManager sm = System.getSecurityManager();
+    if (sm != null)
+      sm.checkListen (getLocalPort());
+
+    SocketChannel socketChannel = channel.provider().openSocketChannel();
+    implAccept (socketChannel.socket());
+    return socketChannel.socket();
+  }
+}