View Javadoc

1   /***
2    * 
3    * Copyright 2005 LogicBlaze, Inc.
4    * 
5    * Licensed under the Apache License, Version 2.0 (the "License"); 
6    * you may not use this file except in compliance with the License. 
7    * You may obtain a copy of the License at 
8    * 
9    * http://www.apache.org/licenses/LICENSE-2.0
10   * 
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS, 
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
14   * See the License for the specific language governing permissions and 
15   * limitations under the License. 
16   * 
17   **/
18  package org.logicblaze.lingo.jms.impl;
19  
20  import org.logicblaze.lingo.jms.ReplyHandler;
21  import org.logicblaze.lingo.jms.marshall.Marshaller;
22  import org.apache.commons.logging.Log;
23  import org.apache.commons.logging.LogFactory;
24  import org.springframework.remoting.support.RemoteInvocation;
25  import org.springframework.remoting.support.RemoteInvocationBasedExporter;
26  
27  import javax.jms.JMSException;
28  import javax.jms.Message;
29  import java.lang.reflect.InvocationTargetException;
30  
31  /***
32   * @version $Revision: 1.1 $
33   */
34  public class AsyncReplyHandler extends RemoteInvocationBasedExporter implements ReplyHandler {
35      private static final Log log = LogFactory.getLog(AsyncReplyHandler.class);
36  
37      private Object pojo;
38      private Marshaller marshaller;
39  
40      public AsyncReplyHandler(Object pojo, Marshaller marshaller) {
41          this.pojo = pojo;
42          this.marshaller = marshaller;
43      }
44  
45      public boolean handle(Message message) throws JMSException {
46          RemoteInvocation invocation = marshaller.readRemoteInvocation(message);
47          try {
48              invoke(invocation, pojo);
49          }
50          catch (NoSuchMethodException e) {
51              onException(invocation, e);
52          }
53          catch (IllegalAccessException e) {
54              onException(invocation, e);
55          }
56          catch (InvocationTargetException e) {
57              onException(invocation, e);
58          }
59          return false;
60      }
61  
62  
63      protected void onException(RemoteInvocation invocation, Exception e) {
64          log.error("Failed to invoke: " + invocation + " on: " + pojo + ". Reason: " + e, e);
65      }
66  }