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      1 /**
      2  * $RCSfile$
      3  * $Revision$
      4  * $Date$
      5  *
      6  * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
      7  * you may not use this file except in compliance with the License.
      8  * You may obtain a copy of the License at
      9  *
     10  *     http://www.apache.org/licenses/LICENSE-2.0
     11  *
     12  * Unless required by applicable law or agreed to in writing, software
     13  * distributed under the License is distributed on an "AS IS" BASIS,
     14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     15  * See the License for the specific language governing permissions and
     16  * limitations under the License.
     17  */
     18 package org.jivesoftware.smack.proxy;
     19 
     20 import java.io.IOException;
     21 import java.net.InetAddress;
     22 import java.net.InetSocketAddress;
     23 import java.net.Proxy;
     24 import java.net.Socket;
     25 import java.net.UnknownHostException;
     26 import javax.net.SocketFactory;
     27 
     28 /**
     29  * SocketFactory for direct connection
     30  *
     31  * @author Atul Aggarwal
     32  */
     33 class DirectSocketFactory
     34     extends SocketFactory
     35 {
     36 
     37     public DirectSocketFactory()
     38     {
     39     }
     40 
     41     static private int roundrobin = 0;
     42 
     43     public Socket createSocket(String host, int port)
     44         throws IOException, UnknownHostException
     45     {
     46         Socket newSocket = new Socket(Proxy.NO_PROXY);
     47         InetAddress resolved[] = InetAddress.getAllByName(host);
     48         newSocket.connect(new InetSocketAddress(resolved[(roundrobin++) % resolved.length],port));
     49         return newSocket;
     50     }
     51 
     52     public Socket createSocket(String host ,int port, InetAddress localHost,
     53                                 int localPort)
     54         throws IOException, UnknownHostException
     55     {
     56         return new Socket(host,port,localHost,localPort);
     57     }
     58 
     59     public Socket createSocket(InetAddress host, int port)
     60         throws IOException
     61     {
     62         Socket newSocket = new Socket(Proxy.NO_PROXY);
     63         newSocket.connect(new InetSocketAddress(host,port));
     64         return newSocket;
     65     }
     66 
     67     public Socket createSocket( InetAddress address, int port,
     68                                 InetAddress localAddress, int localPort)
     69         throws IOException
     70     {
     71         return new Socket(address,port,localAddress,localPort);
     72     }
     73 
     74 }
     75