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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.chainsaw.help;
19  
20  import org.apache.log4j.LogManager;
21  import org.apache.log4j.chainsaw.Generator;
22  import org.apache.log4j.plugins.Plugin;
23  import org.apache.log4j.plugins.PluginRegistry;
24  import org.apache.log4j.spi.LoggerRepository;
25  import org.apache.log4j.spi.LoggerRepositoryEx;
26  
27  /**
28   * A runnable element that installs into the Log4j environment some fake Receivers
29   * which generates events for use as a tutorial.
30   *
31   * @author Paul Smith
32   */
33  public class Tutorial implements Runnable {
34    /* (non-Javadoc)
35     * @see java.lang.Runnable#run()
36     */
37    public void run() {
38        Plugin p1 = new Generator("Generator 1");
39        Plugin p2 = new Generator("Generator 2");
40        Plugin p3 = new Generator("Generator 3");
41        
42        LoggerRepository repo = LogManager.getLoggerRepository();
43        if (repo instanceof LoggerRepositoryEx) {
44        	PluginRegistry pluginRegistry = ((LoggerRepositoryEx) repo).getPluginRegistry();
45          pluginRegistry.addPlugin(p1);
46          p1.activateOptions();
47          pluginRegistry.addPlugin(p2);
48          p2.activateOptions();
49          pluginRegistry.addPlugin(p3);
50          p3.activateOptions();
51        }
52        
53    }
54  }