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From "CONNER, BRENDAN \(SBCSI\)" <bc1...@att.com>
Subject RE: Using Layouts with JMSAppender
Date Tue, 07 Feb 2006 00:47:04 GMT
Right, we want to use JMSAppender to store our message in the DB.  But
we may want to store the formatted version of the message in our
database.  However, are you saying that the JMSAppender does not handle
calling Layout itself?  So does our MDB have to have access to our
log4j.properties file and read it manually?  I'm hoping I'm missing
something here.... ;-)

- Brendan

-----Original Message-----
From: Paul Smith [mailto:psmith@aconex.com] 
Sent: Monday, February 06, 2006 6:40 PM
To: Log4J Users List
Subject: Re: Using Layouts with JMSAppender


In your MDB, just have an instance of a Layout and format it then.

Otherwise you don't want to use JMSAppender.  JMSAppender is about  
sending the binary contents of the LoggingEvent over JMS for some  
other reason (say, to view in a GUI, or store in a DB).

Paul
On 07/02/2006, at 11:36 AM, CONNER, BRENDAN (SBCSI) wrote:

> I finally got the JMSAppender working, and I can receive the logged
> message using a Message Driven Bean.  While working with my example, I
> noticed that the message that is received by the onMessage() method is
> an instance of ObjectMessage, which wraps an instance of LoggingEvent.
> My question is:
>
> How can I retrieve a formatted version of the logged message, as
> formatted by the layout given in my log4j.properties file?
>
> When I look at the string returned by LoggingEvent.getMessage(), it is
> just the string that was logged by the code, not the formatted string
> that should be the output of the Layout class.  Similarly, the string
> returned by LoggingEvent.getRenderedMessage() is also just the string
> that was logged by the code.
>
> Any help would be appreciated.  My log4j.properties file contains the
> following entries:
>
> log4j.category.com.ibm.example.pubsub=DEBUG, JmsAppender
>
> log4j.appender.JmsAppender=org.apache.log4j.net.JMSAppender
> log4j.appender.JmsAppender.topicConnectionFactoryBindingName=java:comp

> /e
> nv/jms/PSExampleConnectionFactoryRef
> log4j.appender.JmsAppender.topicBindingName=java:comp/env/jms/ 
> PSExampleT
> opicRef
> log4j.appender.JmsAppender.layout=org.apache.log4j.PatternLayout
> log4j.appender.JmsAppender.layout.ConversionPattern=%d [%-5p] (%t) %c:
> %m%n
>
> - Brendan
>
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