1 /*
   2  * Copyright (c) 1996, 2017, 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 package sun.rmi.transport.tcp;
  26 
  27 import java.io.IOException;
  28 import java.net.InetSocketAddress;
  29 import java.net.Socket;
  30 import java.net.ServerSocket;
  31 import java.rmi.server.RMISocketFactory;
  32 
  33 /**
  34  * RMIDirectSocketFactory creates a direct socket connection to the
  35  * specified port on the specified host.
  36  */
  37 public class TCPDirectSocketFactory extends RMISocketFactory {
  38 
  39     public Socket createSocket(String host, int port) throws IOException
  40     {
  41         return new Socket(host, port);
  42     }
  43 
  44     public ServerSocket createServerSocket(int port) throws IOException
  45     {
  46         ServerSocket ss = new ServerSocket();
  47         if (port == 0) {
  48             // Only need SO_REUSEADDR if we're using a fixed port. If we
  49             // start seeing EADDRINUSE due to collisions in free ports
  50             // then we should retry the bind() a few times.
  51             ss.setReuseAddress(false);
  52         }
  53         ss.bind(new InetSocketAddress(port));
  54         return ss;
  55     }
  56 }