View Javadoc

1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  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.apache.jdo.impl.enhancer;
19  
20  import java.io.InputStream;
21  import java.io.OutputStream;
22  
23  import org.apache.jdo.impl.enhancer.util.Support;
24  
25  
26  
27  /***
28   * Timer-wrapper for ClassFileEnhancer instances.
29   *
30   * @author Martin Zaun
31   */
32  public final class ClassFileEnhancerTimer
33      extends Support
34      implements ClassFileEnhancer
35  {
36      // delegate
37      final protected ClassFileEnhancer delegate;
38  
39      /***
40       * Creates an instance.
41       */
42      public ClassFileEnhancerTimer(ClassFileEnhancer delegate)
43      {
44          affirm(delegate);
45          this.delegate = delegate;
46      }
47  
48      public boolean enhanceClassFile(InputStream inClassFile,
49                                      OutputStream outClassFile)
50          throws EnhancerUserException, EnhancerFatalError
51      {
52          try {
53              timer.push("ClassFileEnhancer.enhanceClassFile(InputStream,OutputStream)");
54              return delegate.enhanceClassFile(inClassFile, outClassFile);
55          } finally {
56              timer.pop();
57          }
58      }
59  
60      public boolean enhanceClassFile(InputStream inClassFile,
61                                      OutputStreamWrapper outClassFile)
62          throws EnhancerUserException, EnhancerFatalError
63      {
64          try {
65              timer.push("ClassFileEnhancer.enhanceClassFile(InputStream,OutputStreamWrapper)");
66              return delegate.enhanceClassFile(inClassFile, outClassFile);
67          } finally {
68              timer.pop();
69          }
70      }
71  }