1   /*
2    * Copyright 2005 The Apache Software Foundation.
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * 
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */ 
16  
17  package org.apache.commons.logging.log4j.log4j12;
18  
19  
20  import java.util.List;
21  
22  import org.apache.commons.logging.log4j.StandardTests;
23  import org.apache.log4j.AppenderSkeleton;
24  import org.apache.log4j.spi.LoggingEvent;
25  
26  /***
27   * A custom implementation of <code>org.apache.log4j.Appender</code> which
28   * converts the log4j-specific log event record into a representation that
29   * doesn't have a dependency on log4j and stores that new representation into
30   * an external list.
31   */
32  
33  public class TestAppender extends AppenderSkeleton {
34  
35      /***
36       * Constructor.
37       */
38      public TestAppender(List logEvents) {
39          events = logEvents;
40      }
41  
42      // ----------------------------------------------------- Instance Variables
43  
44  
45      // The set of logged events for this appender
46      private List events;
47  
48  
49      // ------------------------------------------------------- Appender Methods
50  
51      protected void append(LoggingEvent event) {
52          StandardTests.LogEvent lev = new StandardTests.LogEvent();
53          
54          lev.level = event.getLevel().toString();
55  
56          if (event.getMessage() == null)
57              lev.msg = null;
58          else
59              lev.msg = event.getMessage().toString();
60          
61          if (event.getThrowableInformation() == null)
62              lev.throwable = null;
63          else
64              lev.throwable = event.getThrowableInformation().getThrowable();
65  
66          events.add(lev);
67      }
68  
69  
70      public void close() {
71      }
72  
73  
74      public boolean requiresLayout() {
75          return (false);
76      }
77  
78  
79  }