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1   /**
2    * Logback: the reliable, generic, fast and flexible logging framework.
3    * Copyright (C) 1999-2011, QOS.ch. All rights reserved.
4    *
5    * This program and the accompanying materials are dual-licensed under
6    * either the terms of the Eclipse Public License v1.0 as published by
7    * the Eclipse Foundation
8    *
9    *   or (per the licensee's choosing)
10   *
11   * under the terms of the GNU Lesser General Public License version 2.1
12   * as published by the Free Software Foundation.
13   */
14  package ch.qos.logback.classic.turbo;
15  
16  import org.slf4j.Marker;
17  
18  import ch.qos.logback.classic.Level;
19  import ch.qos.logback.classic.Logger;
20  import ch.qos.logback.core.spi.ContextAwareBase;
21  import ch.qos.logback.core.spi.FilterReply;
22  import ch.qos.logback.core.spi.LifeCycle;
23  
24  /**
25   * TurboFilter is a specialized filter with a decide method that takes a bunch 
26   * of parameters instead of a single event object. The latter is cleaner but 
27   * the latter is much more performant.
28   * <p>
29   * For more information about turbo filters, please refer to the online manual at
30   * http://logback.qos.ch/manual/filters.html#TurboFilter
31   * 
32   * @author Ceki Gulcu
33   */
34  public abstract class TurboFilter extends ContextAwareBase implements LifeCycle {
35  
36    private String name;
37    boolean start = false;  
38   
39   
40    /**
41     * Make a decision based on the multiple parameters passed as arguments.
42     * The returned value should be one of <code>{@link FilterReply#DENY}</code>, 
43     * <code>{@link FilterReply#NEUTRAL}</code>, or <code>{@link FilterReply#ACCEPT}</code>.
44    
45     * @param marker
46     * @param logger
47     * @param level
48     * @param format
49     * @param params
50     * @param t
51     * @return
52     */
53    public abstract FilterReply decide(Marker marker, Logger logger,
54        Level level, String format, Object[] params, Throwable t);
55  
56    public void start() {
57      this.start = true;
58    }
59    
60    public boolean isStarted() {
61      return this.start;
62    }
63   
64    public void stop() {
65      this.start = false;
66    }
67  
68  
69    public String getName() {
70      return name;
71    }
72  
73    public void setName(String name) {
74      this.name = name;
75    }
76  }