ProxyLoggingInterceptorFactory


1   // Copyright 2004, 2005 The Apache Software Foundation
2   //
3   // Licensed under the Apache License, Version 2.0 (the "License");
4   // you may not use this file except in compliance with the License.
5   // You may obtain a copy of the License at
6   //
7   //     http://www.apache.org/licenses/LICENSE-2.0
8   //
9   // Unless required by applicable law or agreed to in writing, software
10  // distributed under the License is distributed on an "AS IS" BASIS,
11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  // See the License for the specific language governing permissions and
13  // limitations under the License.
14  
15  package org.apache.examples.impl;
16  
17  import java.lang.reflect.InvocationHandler  ;
18  import java.lang.reflect.Proxy  ;
19  
20  import org.apache.commons.logging.Log;
21  import org.apache.hivemind.InterceptorStack;
22  import org.apache.hivemind.ServiceInterceptorFactory;
23  import org.apache.hivemind.internal.Module;
24  
25  /**
26   * Creates a simple, proxy-based interceptor that mimics most (but not all) of the behavior
27   * of {@link org.apache.hivemind.service.impl.LoggingInterceptorClassFactory}.
28   *
29   * @author Howard Lewis Ship
30   */
31  public class ProxyLoggingInterceptorFactory implements ServiceInterceptorFactory
32  {
33  
34      public void createInterceptor(InterceptorStack stack, Module invokingModule, Object   parameters)
35      {
36          Log log = stack.getServiceLog();
37  
38          InvocationHandler   handler = new ProxyLoggingInvocationHandler(log, stack.peek());
39  
40          Object   interceptor =
41              Proxy.newProxyInstance(
42                  invokingModule.getClassResolver().getClassLoader(),
43                  new Class  [] { stack.getServiceInterface()},
44                  handler);
45  
46          stack.push(interceptor);
47      }
48  }
49

A to Z: JavaDoc & Examples Daily Java News & Articles Open Source Projects Open Source Codes Free Computer Books Remove Frame

Popular Tags