org.apache.commons.jelly.tags.jms
Class StopwatchTag

java.lang.Object
  org.apache.commons.jelly.TagSupport
      org.apache.commons.jelly.tags.jms.MessageOperationTag
          org.apache.commons.jelly.tags.jms.StopwatchTag

All Implemented Interfaces:

org.apache.commons.jelly.Tag, ConnectionContext, ConsumerTag

public class StopwatchTag
extends MessageOperationTag
implements ConsumerTag

This tag can be used to measure the amount of time it takes to process JMS messages. This tag can be wrapped around any custom JMS tag which consumes JMS messages.

Version:

$Revision: 155420 $

Author:

James Strachan

Field Summary

private int	groupSize the message group size
private org.apache.commons.logging.Log	log The Log to which logging calls will be made.
private javax.jms.MessageListener	messageListener the underlying MessageListener

Fields inherited from class org.apache.commons.jelly.TagSupport

body, context, hasTrimmed, parent, shouldTrim

Constructor Summary

StopwatchTag()

Method Summary

void	doTag(org.apache.commons.jelly.XMLOutput output)
int	getGroupSize()
org.apache.commons.logging.Log	getLog()
javax.jms.MessageListener	getMessageListener()
void	setGroupSize(int groupSize) Sets the number of messages in the group before the performance statistics are logged
void	setLog(org.apache.commons.logging.Log log) Sets the logger to which statistic messages will be sent
void	setMessageListener(javax.jms.MessageListener messageListener) Sets the JMS messageListener used to consume JMS messages on the given destination

Methods inherited from class org.apache.commons.jelly.tags.jms.MessageOperationTag

findConnection, findDestination, getConnection, getDestination, setConnection, setDestination, setSubject

Methods inherited from class org.apache.commons.jelly.TagSupport

findAncestorWithClass, findAncestorWithClass, findAncestorWithClass, findAncestorWithClass, findAncestorWithClass, findAncestorWithClass, getBody, getBodyText, getBodyText, getContext, getParent, invokeBody, isEscapeText, isTrim, setBody, setContext, setEscapeText, setParent, setTrim, trimBody

Methods inherited from class java.lang.Object

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

Field Detail

messageListener

private javax.jms.MessageListener messageListener

the underlying MessageListener

log

private org.apache.commons.logging.Log log

The Log to which logging calls will be made.

groupSize

private int groupSize

the message group size

Constructor Detail

StopwatchTag

public StopwatchTag()

Method Detail

doTag

public void doTag(org.apache.commons.jelly.XMLOutput output)
           throws org.apache.commons.jelly.JellyTagException

Specified by:

doTag in interface org.apache.commons.jelly.Tag

Throws:

org.apache.commons.jelly.JellyTagException

getGroupSize

public int getGroupSize()

Returns:

the number of messages in the group before the performance statistics are logged

setGroupSize

public void setGroupSize(int groupSize)

Sets the number of messages in the group before the performance statistics are logged

getLog

public org.apache.commons.logging.Log getLog()

Returns:

the logger to which statistic messages will be sent

setLog

public void setLog(org.apache.commons.logging.Log log)

Sets the logger to which statistic messages will be sent

getMessageListener

public javax.jms.MessageListener getMessageListener()

Returns:

the MessageListener which this listener delegates to

setMessageListener

public void setMessageListener(javax.jms.MessageListener messageListener)

Sets the JMS messageListener used to consume JMS messages on the given destination

Specified by:

setMessageListener in interface ConsumerTag