LogEvent


1   /*
2    * (c) Rob Gordon 2005
3    */
4   package org.oddjob.logging;
5   
6   import java.io.Serializable  ;
7   
8   /**
9    * A LogEvent is archived in a LogArchiver. These LogEvents are Serialized so
10   * they may be sent across the network. 
11   * <p>
12   * The log message should already be formatted. 
13   * <p>
14   * The sequence number allows a local LogArchive to synchronize with with 
15   * a remote LogArchive.
16   */
17  public class LogEvent implements Serializable   {
18      
19      private final long number;
20      private final LogLevel level;
21      private final String   logger;
22      private final String   message;
23      
24      /**
25       * Construct a new LogEvent.
26       * 
27       * @param logger The logger (or archive). Must not be null.
28       * @param number The sequence number for this event.
29       * @param level The LogLevel. Must not be null.
30       * @param message The formatted message. Must not be null.
31       */
32      public LogEvent(String   logger, 
33              long number, LogLevel level, 
34              String   message) {
35          if (logger == null) {
36              throw new NullPointerException  ("Logger can not be null!");
37          }
38          if (number < 0) {
39              throw new IllegalArgumentException  ("Sequence Number must be positive!");
40          }
41          if (level == null) {
42              throw new NullPointerException  ("Log Level can not be null!");
43          }
44          if (message == null) {
45              throw new NullPointerException  ("Message can not be null!");
46          }
47          
48          this.number = number;
49          this.level = level;
50          this.logger = logger;
51          this.message = message;
52      }
53      /**
54       * @return Returns the level.
55       */
56      public LogLevel getLevel() {
57          return level;
58      }
59      /**
60       * @return Returns the logger.
61       */
62      public String   getLogger() {
63          return logger;
64      }
65      /**
66       * @return Returns the message.
67       */
68      public String   getMessage() {
69          return message;
70      }
71      /**
72       * @return Returns the number.
73       */
74      public long getNumber() {
75          return number;
76      }
77  }
78
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