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1   /*
2    * $Header: /home/cvs/jakarta-commons/httpclient/src/java/org/apache/commons/httpclient/protocol/DefaultProtocolSocketFactory.java,v 1.5.2.2 2004/02/22 18:21:16 olegk Exp $
3    * $Revision: 1.5.2.2 $
4    * $Date: 2004/02/22 18:21:16 $
5    *
6    * ====================================================================
7    *
8    *  Copyright 2002-2004 The Apache Software Foundation
9    *
10   *  Licensed under the Apache License, Version 2.0 (the "License");
11   *  you may not use this file except in compliance with the License.
12   *  You may obtain a copy of the License at
13   *
14   *      http://www.apache.org/licenses/LICENSE-2.0
15   *
16   *  Unless required by applicable law or agreed to in writing, software
17   *  distributed under the License is distributed on an "AS IS" BASIS,
18   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19   *  See the License for the specific language governing permissions and
20   *  limitations under the License.
21   * ====================================================================
22   *
23   * This software consists of voluntary contributions made by many
24   * individuals on behalf of the Apache Software Foundation.  For more
25   * information on the Apache Software Foundation, please see
26   * <http://www.apache.org/>.
27   *
28   * [Additional notices, if required by prior licensing conditions]
29   *
30   */
31  
32  package org.apache.commons.httpclient.protocol;
33  
34  import java.io.IOException;
35  import java.net.InetAddress;
36  import java.net.Socket;
37  import java.net.UnknownHostException;
38  
39  /***
40   * The default class for creating protocol sockets.  This class just uses the
41   * {@link java.net.Socket socket} constructors.
42   * 
43   * @author Michael Becke
44   * 
45   * @since 2.0
46   */
47  public class DefaultProtocolSocketFactory implements ProtocolSocketFactory {
48  
49      /***
50       * The factory singleton.
51       */
52      private static final DefaultProtocolSocketFactory factory = new DefaultProtocolSocketFactory();
53      
54      /***
55       * Gets an singleton instance of the DefaultProtocolSocketFactory.
56       * @return a DefaultProtocolSocketFactory
57       */
58      static DefaultProtocolSocketFactory getSocketFactory() {
59          return factory;
60      }
61      
62      /***
63       * Constructor for DefaultProtocolSocketFactory.
64       */
65      public DefaultProtocolSocketFactory() {
66          super();
67      }
68  
69      /***
70       * @see #createSocket(java.lang.String,int,java.net.InetAddress,int)
71       */
72      public Socket createSocket(
73          String host,
74          int port,
75          InetAddress clientHost,
76          int clientPort
77      ) throws IOException, UnknownHostException {
78          return new Socket(host, port, clientHost, clientPort);
79      }
80  
81      /***
82       * @see ProtocolSocketFactory#createSocket(java.lang.String,int)
83       */
84      public Socket createSocket(String host, int port)
85          throws IOException, UnknownHostException {
86          return new Socket(host, port);
87      }
88  
89      /***
90       * All instances of DefaultProtocolSocketFactory are the same.
91       */
92      public boolean equals(Object obj) {
93          return ((obj != null) && obj.getClass().equals(DefaultProtocolSocketFactory.class));
94      }
95  
96      /***
97       * All instances of DefaultProtocolSocketFactory have the same hash code.
98       */
99      public int hashCode() {
100         return DefaultProtocolSocketFactory.class.hashCode();
101     }
102 
103 }