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.log4j;
19  
20  import java.util.Vector;
21  import org.apache.log4j.spi.LoggingEvent;
22  
23  /**
24     An appender that appends logging events to a vector.
25     @author Ceki  Gülcü
26  */
27  public class VectorAppender extends AppenderSkeleton {
28  
29    public Vector vector;
30    
31    public VectorAppender() {
32      vector = new Vector();
33    }
34  
35    /**
36       Does nothing.
37    */
38    public void activateOptions() {
39    }
40  
41  
42    /**
43       This method is called by the {@link AppenderSkeleton#doAppend}
44       method.
45  
46    */
47    public void append(LoggingEvent event) {
48      //System.out.println("---Vector appender called with message ["+event.getRenderedMessage()+"].");
49      //System.out.flush();
50      try {
51        Thread.sleep(100);
52      } catch(Exception e) {
53      }
54      vector.addElement(event);
55     }
56  
57    public Vector getVector() {
58      return vector;
59    }
60  
61    public synchronized void close() {
62      if(this.closed)
63        return;
64      this.closed = true;
65    }
66  
67  
68    public boolean isClosed() {
69      return closed;
70    }
71  
72    public boolean requiresLayout() {
73      return false;
74    }
75  }