the layout in your log4j.properties is irrelevant to JMSAppender,
since it is sending the serialized version of the LoggingEvent.
In short, your MDB won't know what the layout is unless you tell it
because that information is not sent along the wire during the JMS
communication.
Paul
On 07/02/2006, at 11:47 AM, CONNER, BRENDAN (SBCSI) wrote:
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:[EMAIL PROTECTED]
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:com
p
/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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