src/org/lwes/util/Log.java

   1 package org.lwes.util;
   2
   3 import java.util.logging.Level;
   4 import java.util.logging.Logger;
   5
   6 /**
   7  * This is a wrapper class for logging.  Instead of embedding log4j or JDK logging
   8  * statements in the code, we have a wrapper around JDK logging so this could be changed
   9  * easily in the future.  Also, since we prefer the distribution to be simple and
  10  * standalone, we aren't using Commons Logging so that we don't have to bundle that in
  11  * the distribution.  JDK logging could easily be redirected to the destination of the
  12  * library user's choice.
  13  *
  14  * @author Michael P. Lum
  15  */
  16 public class Log {
  17         private static Logger logger = Logger.getLogger("org.lwes");
  18
  19         /**
  20          * Log a trace level message
  21          * @param message the message to be logged
  22          */
  23         public static void trace(String message) {
  24                 logger.log(Level.FINEST, message);
  25         }
  26
  27         /**
  28          * Log a debug level message
  29          * @param message the message to be logged
  30          */
  31         public static void debug(String message) {
  32                 logger.log(Level.FINER, message);
  33         }
  34
  35         /**
  36          * Log a info level message
  37          * @param message the message to be logged
  38          */
  39         public static void info(String message) {
  40                 logger.log(Level.FINE, message);
  41         }
  42
  43         /**
  44          * Log a warning level message
  45          * @param message the message to be logged
  46          */
  47         public static void warning(String message) {
  48                 logger.log(Level.WARNING, message);
  49         }
  50
  51         /**
  52          * Log an warning level message, with associated Throwable information
  53          * @param message the message to be logged
  54          * @param t the Throwable associated with the log message
  55          */
  56         public static void warning(String message, Throwable t) {
  57                 logger.log(Level.WARNING, message, t);
  58         }
  59
  60
  61         /**
  62          * Log an error level message
  63          * @param message the message to be logged
  64          */
  65         public static void error(String message) {
  66                 logger.log(Level.SEVERE, message);
  67         }
  68
  69         /**
  70          * Log an error level message, with associated Throwable information
  71          * @param message the message to be logged
  72          * @param t the Throwable associated with the log message
  73          */
  74         public static void error(String message, Throwable t) {
  75                 logger.log(Level.SEVERE, message, t);
  76         }
  77 }