KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > com > caucho > ejb > burlap > ExceptionSkeleton


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  * Free SoftwareFoundation, Inc.
23  * 59 Temple Place, Suite 330
24  * Boston, MA 02111-1307 USA
25  *
26  * @author Scott Ferguson
27  */
28
29 package com.caucho.ejb.burlap;
30
31 import com.caucho.burlap.io.BurlapInput;
32 import com.caucho.burlap.io.BurlapOutput;
33 import com.caucho.ejb.protocol.Skeleton;
34 import com.caucho.log.Log;
35
36 import javax.jms.JMSException JavaDoc;
37 import java.io.InputStream JavaDoc;
38 import java.io.OutputStream JavaDoc;
39 import java.util.logging.Level JavaDoc;
40 import java.util.logging.Logger JavaDoc;
41
42 /**
43  * Base class for any bean skeleton capable of handling an BURLAP-RPC request.
44  *
45  * <p/>Once selected, the calling servlet will dispatch the request through
46  * the <code>_service</code> call. After parsing the request headers,
47  * <code>_service</code> calls the generated entry <code>_execute</code>
48  * to execute the request.
49  */
50 public class ExceptionSkeleton extends Skeleton {
51   protected static Logger JavaDoc log = Log.open(ExceptionSkeleton.class);
52
53   ExceptionSkeleton()
54     throws JMSException JavaDoc
55   {
56   }
57
58   /**
59    * Services the request.
60    *
61    * @param rawIs the raw input stream from the servlet request
62    * @param rawOs the raw output stream to the servlet response
63    */
64   public void _service(InputStream JavaDoc rawIs, OutputStream JavaDoc rawOs)
65     throws Exception JavaDoc
66   {
67     throw new UnsupportedOperationException JavaDoc();
68   }
69
70   /**
71    * Services the request.
72    *
73    * @param rawIs the raw input stream from the servlet request
74    * @param rawOs the raw output stream to the servlet response
75    */
76   public void _service(InputStream JavaDoc rawIs, OutputStream JavaDoc rawOs,
77                Throwable JavaDoc e)
78     throws Exception JavaDoc
79   {
80     BurlapInput in = new BurlapInput(rawIs);
81     BurlapOutput out = new BurlapWriter(rawOs);
82
83     try {
84       in.startCall();
85       
86       String JavaDoc method = in.getMethod();
87
88       in.completeCall();
89
90       out.startReply();
91       out.writeFault("SystemFault", String.valueOf(e), e);
92       out.completeReply();
93     } catch (Exception JavaDoc e1) {
94       log.log(Level.WARNING, e1.toString(), e1);
95
96       out.startReply();
97       out.writeFault("SystemFault", String.valueOf(e1), e1);
98       out.completeReply();
99     }
100   }
101 }
102
103
104
Popular Tags