1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.kernel.messaging.proxy;
24  
25  import com.liferay.portal.kernel.util.MethodInvoker;
26  import com.liferay.portal.kernel.util.MethodWrapper;
27  import com.liferay.portal.kernel.util.NullWrapper;
28  
29  import java.io.Serializable;
30  
31  import java.lang.reflect.InvocationTargetException;
32  import java.lang.reflect.Method;
33  
34  /**
35   * <a href="ProxyRequest.java.html"><b><i>View Source</i></b></a>
36   *
37   * @author Micha Kiener
38   * @author Michael C. Han
39   * @author Brian Wing Shun Chan
40   */
41  public class ProxyRequest implements Serializable {
42  
43      public ProxyRequest(Method method, Object[] arguments) throws Exception {
44          Class<?>[] argumentTypes = method.getParameterTypes();
45  
46          for (int i = 0; i < arguments.length; i++) {
47              if (arguments[i] == null) {
48                  arguments[i] = new NullWrapper(argumentTypes[i].getName());
49              }
50          }
51  
52          _methodWrapper = new MethodWrapper(method, arguments);
53  
54          _hasReturnValue = false;
55  
56          if (method.getReturnType() != Void.TYPE) {
57              _hasReturnValue = true;
58          }
59  
60          MessagingProxy messagingProxy = method.getAnnotation(
61              MessagingProxy.class);
62  
63          if (messagingProxy == null) {
64              messagingProxy = method.getDeclaringClass().getAnnotation(
65                  MessagingProxy.class);
66          }
67  
68          if ((messagingProxy != null) &&
69              (messagingProxy.mode().equals(ProxyMode.SYNC))) {
70  
71              _synchronous = true;
72          }
73      }
74  
75      public Object execute(Object object) throws Exception {
76          try {
77              return MethodInvoker.invoke(_methodWrapper, object);
78          }
79          catch (InvocationTargetException ite) {
80              Throwable t = ite.getCause();
81  
82              if (t instanceof Exception) {
83                  throw (Exception)t;
84              }
85              else {
86                  throw new Exception(t);
87              }
88          }
89      }
90  
91      public MethodWrapper getMethodWrapper() {
92          return _methodWrapper;
93      }
94  
95      public boolean hasReturnValue() {
96          return _hasReturnValue;
97      }
98  
99      public boolean isSynchronous() {
100         return _synchronous;
101     }
102 
103     private boolean _hasReturnValue;
104     private MethodWrapper _methodWrapper;
105     private boolean _synchronous;
106 
107 }