LogSink


1   // ========================================================================
2   // Copyright (c) 1997 MortBay Consulting, Sydney
3   // $Id: LogSink.java,v 1.1 2004/06/04 21:37:20 gregwilkins Exp $
4   // ========================================================================
5   
6   package org.mortbay.log;
7   
8   import java.io.Serializable  ;
9   
10  import org.mortbay.util.LifeCycle;
11  
12  /* ------------------------------------------------------------ */
13  /** A Log sink.
14   * This class represents both a concrete or abstract sink of
15   * Log data.  The default implementation logs to a PrintWriter, but
16   * derived implementations may log to files, syslog, or other
17   * logging APIs.
18   *
19   * 
20   * @version $Id: LogSink.java,v 1.1 2004/06/04 21:37:20 gregwilkins Exp $
21   * @author Greg Wilkins (gregw)
22   */
23  public interface LogSink extends LifeCycle, Serializable  
24  {
25      /* ------------------------------------------------------------ */
26      public void setLogImpl(LogImpl impl);
27     
28      /* ------------------------------------------------------------ */
29      /** Log a message.
30       * This method formats the log information as a string and calls
31       * log(String).  It should only be specialized by a derived
32       * implementation if the format of the logged messages is to be changed.
33       *
34       * @param tag Tag for type of log
35       * @param msg The message
36       * @param frame The frame that generated the message.
37       * @param time The time stamp of the message.
38       */
39      public void log(String   tag,
40                      Object   msg,
41                      Frame frame,
42                      long time);
43      
44      /* ------------------------------------------------------------ */
45      /** Log a message.
46       * The formatted log string is written to the log sink. The default
47       * implementation writes the message to a PrintWriter.
48       * @param formattedLog 
49       */
50      public void log(String   formattedLog);
51  
52  };
53  
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55  
56  
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