org.apache.tomcat.util.qlog
Class QueueLogger

java.lang.Object
  org.apache.tomcat.util.log.LogHandler
      org.apache.tomcat.util.qlog.Logger
          org.apache.tomcat.util.qlog.QueueLogger

public class QueueLogger

extends Logger

A real implementation of the Logger abstraction. It uses a log queue, so that the caller will not have to wait.

Since:

Tomcat 3.1

Author:

Anil V (akv@eng.sun.com)

Field Summary

Fields inherited from class org.apache.tomcat.util.qlog.Logger

custom, day, defaultSink, MAX_THROWABLE_DEPTH, path, timestamp, timestampFormat, timestampFormatter, timestampRaw

Fields inherited from class org.apache.tomcat.util.log.LogHandler

level, sink

Constructor Summary

QueueLogger()

Method Summary

void	flush() Flush the queue - in a separate thread, so that caller doesn't have to wait
void	log(java.lang.String prefix, java.lang.String message, java.lang.Throwable t, int verbosityLevel) Adds a log message and stack trace to the queue and returns immediately.
void	setLogDaemon(LogDaemon ld)

Methods inherited from class org.apache.tomcat.util.qlog.Logger

formatTimestamp, formatTimestamp, getDatePrefix, getDay, getLevel, getPath, getTimestampFormat, getVerbosityLevel, isTimestamp, open, setDefaultSink, setPath, setTimestamp, setTimestampFormat, setVerbosityLevel, setVerbosityLevel, throwableToString, throwableToString

Methods inherited from class org.apache.tomcat.util.log.LogHandler

close, setLevel

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

QueueLogger

public QueueLogger()

Method Detail

setLogDaemon

public void setLogDaemon(LogDaemon ld)

log

public void log(java.lang.String prefix,
                java.lang.String message,
                java.lang.Throwable t,
                int verbosityLevel)

Adds a log message and stack trace to the queue and returns immediately. The logger daemon thread will pick it up later and actually print it out.

Overrides:

log in class LogHandler

Parameters:

message - the message to log.

t - the exception that was thrown.

verbosityLevel - what type of message is this? (WARNING/DEBUG/INFO etc)

prefix - optional prefix.

flush

public void flush()

Flush the queue - in a separate thread, so that caller doesn't have to wait

Overrides:

flush in class LogHandler