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Java > Open Source Codes > org > openejb > client > SocketConnectionFactory


1 /**
2  * Redistribution and use of this software and associated documentation
3  * ("Software"), with or without modification, are permitted provided
4  * that the following conditions are met:
5  *
6  * 1. Redistributions of source code must retain copyright
7  * statements and notices. Redistributions must also contain a
8  * copy of this document.
9  *
10  * 2. Redistributions in binary form must reproduce the
11  * above copyright notice, this list of conditions and the
12  * following disclaimer in the documentation and/or other
13  * materials provided with the distribution.
14  *
15  * 3. The name "OpenEJB" must not be used to endorse or promote
16  * products derived from this Software without prior written
17  * permission of The OpenEJB Group. For written permission,
18  * please contact dev@openejb.org.
19  *
20  * 4. Products derived from this Software may not be called "OpenEJB"
21  * nor may "OpenEJB" appear in their names without prior written
22  * permission of The OpenEJB Group. OpenEJB is a registered
23  * trademark of The OpenEJB Group.
24  *
25  * 5. Due credit should be given to the OpenEJB Project
26  * (http://www.openejb.org/).
27  *
28  * THIS SOFTWARE IS PROVIDED BY THE OPENEJB GROUP AND CONTRIBUTORS
29  * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
30  * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
31  * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
32  * THE OPENEJB GROUP OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
33  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
34  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
35  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
39  * OF THE POSSIBILITY OF SUCH DAMAGE.
40  *
41  * Copyright 2001 (C) The OpenEJB Group. All Rights Reserved.
42  *
43  * $Id: SocketConnectionFactory.java 2475 2006-02-21 00:18:55Z dblevins $
44  */

45 package org.openejb.client;
46  
47 import java.io.IOException JavaDoc;
48 import java.io.InputStream JavaDoc;
49 import java.io.OutputStream JavaDoc;
50 import java.io.StreamCorruptedException JavaDoc;
51 import java.net.Socket JavaDoc;
52 import java.util.Properties JavaDoc;
53
54 /**
55  *
56  * @author <a HREF="mailto:david.blevins@visi.com">David Blevins</a>
57  */

58 public class SocketConnectionFactory implements ConnectionFactory{
59
60     /**
61      * Prepares the ConnectionFactory for use. Called once right after
62      * the ConnectionFactory is instantiated.
63      *
64      * @param props
65      */

66     public void init(Properties JavaDoc props) {
67     }
68
69     
70     /**
71      * Get a connection from the factory
72      *
73      * @return Connection
74      * @exception java.io.IOException
75      */

76     public Connection getConnection(ServerMetaData server) throws java.io.IOException JavaDoc {
77         SocketConnection conn = new SocketConnection();
78         conn.open( server );
79         return conn;
80     }
81
82     /**
83      *
84      * @author <a HREF="mailto:david.blevins@visi.com">David Blevins</a>
85      */

86     class SocketConnection implements Connection{
87         
88         Socket JavaDoc socket = null;
89         OutputStream JavaDoc socketOut = null;
90         InputStream JavaDoc socketIn = null;
91     
92         protected void open(ServerMetaData server) throws IOException JavaDoc {
93             /*-----------------------*/
94             /* Open socket to server */
95             /*-----------------------*/
96             try{
97                 socket = new Socket JavaDoc(server.getHost(), server.getPort());
98                 socket.setTcpNoDelay(true);
99             } catch (IOException JavaDoc e){
100                 throw new IOException JavaDoc("Cannot access server: " + server.getHost() + ":" + server.getPort() + " Exception: " + e.getClass().getName() + " : " + e.getMessage());
101
102             } catch (SecurityException JavaDoc e){
103                 throw new IOException JavaDoc("Cannot access server: " + server.getHost() + ":" + server.getPort() + " due to security restrictions in the current VM: " + e.getClass().getName() + " : " + e.getMessage());
104
105             } catch (Throwable JavaDoc e){
106                 throw new IOException JavaDoc("Cannot access server: " + server.getHost() + ":" + server.getPort() + " due to an unkown exception in the OpenEJB client: " + e.getClass().getName() + " : " + e.getMessage());
107             }
108             
109         }
110     
111         public void close() throws IOException JavaDoc {
112             try {
113                 if (socketOut != null) socketOut.close();
114                 if (socketIn != null) socketIn.close();
115                 if (socket != null) socket.close();
116             } catch (Throwable JavaDoc t){
117                 throw new IOException JavaDoc("Error closing connection with server: "+t.getMessage() );
118             }
119         }
120     
121         public InputStream JavaDoc getInputStream() throws IOException JavaDoc {
122             /*----------------------------------*/
123             /* Open input streams */
124             /*----------------------------------*/
125             try{
126                 socketIn = socket.getInputStream();
127             } catch (StreamCorruptedException JavaDoc e){
128                 throw new IOException JavaDoc("Cannot open input stream to server, the stream has been corrupted: " + e.getClass().getName() +" : "+ e.getMessage());
129     
130             } catch (IOException JavaDoc e){
131                 throw new IOException JavaDoc("Cannot open input stream to server: " + e.getClass().getName() +" : "+ e.getMessage());
132     
133             } catch (Throwable JavaDoc e){
134                 throw new IOException JavaDoc("Cannot open output stream to server: " + e.getClass().getName() +" : "+ e.getMessage());
135             }
136             return socketIn;
137         }
138         
139         public OutputStream JavaDoc getOuputStream() throws IOException JavaDoc {
140             /*----------------------------------*/
141             /* Openning output streams */
142             /*----------------------------------*/
143             try{
144                 socketOut = socket.getOutputStream();
145             } catch (IOException JavaDoc e){
146                 throw new IOException JavaDoc("Cannot open output stream to server: "+ e.getClass().getName() +" : "+ e.getMessage());
147             
148             } catch (Throwable JavaDoc e){
149                 throw new IOException JavaDoc("Cannot open output stream to server: "+ e.getClass().getName() +" : "+ e.getMessage());
150             }
151             return socketOut;
152         }
153     
154     }
155 }
156
157
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