CAF Application logging using log4j

, ,
1

I am working on a CAF application in WM7.1 and my requirement is to log all application specific logs (debug, info, warn, fatal) in a separate application log file. I tried using my own log4j jar & log4.properties file within my CAF application but no information is getting logged (may be ClassLoader issue). I would appreciate all help on configuring logging in 7.1 CAF application using log4j. Some information I am looking are as below

  1. Where to configure logger, appender & layout information. (is it log4j.init.properties file)
  2. API to retrieve logger & log (debug, info, warn & fatal) messages from my CAF application.

Thanks in advance

2

Please look at the following thread:

http://sag.forums.softwareag.com/viewtopic.php?t=12626&highlight=CAF+log4j

3

Thanks Alex for the reply. But I can’t access the link. Even though I am registered with the internal sag forum, I can’t see any forum list. I guess you need to provide me access to the forum.

4

From: Norman, Eric
Sent: Wednesday, July 02, 2008 11:32 AM
To: Imel, Mark; RnD-wM-CAF-SWAT
Subject: RE: Do we have an example of log4j configuration for CAF Standalone apps?

It

5

Thanks Alex!!
I made it work by directly adding a named logger to log4j.init.properties file of MWS/server/config folder. It is working as expected (Not sure if it is recommended way…).

I did put my log4j.jar in WEB-INF/lib folder & log4j.properties in WEB-INF/classes folder in MWS server expecting the application Classloader to load the appropriate file but nothing was getting logged. I will give it a try again.

Anyways thanks for your prompt response and I really appreciate all your help.

6

Sandeep, did you work out how to do it? Can you please tell me? It’s not working for me.

7

Hi,

    We also use custom loggers for our applications.

    A log4j jar file alredy exists by default in [b]webMethods7/common/lib/ext/log4j.jar[/b]. I [b]think [/b]MWS & IS uses this jar.

    In order to use a custom logger  for our applications we have made the following configurations:

    - in the file [b]MyApp\WebContent\WEB-INF\web.xml[/b] add the following listener:

	<listener>
		<listener>com.myapp.util.MyServletContextListener</listener>
	</listener>
    - create the class [b]com.myapp.util.MyServletContextListener[/b]:

import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import org.apache.log4j.PropertyConfigurator;

public class MyServletContextListener implements ServletContextListener {

  public void contextDestroyed(ServletContextEvent arg0) {
    // do nothing
  }

  public void contextInitialized(ServletContextEvent arg0) {
    try {
      // Set Logggingproperties with Configfile
      PropertyConfigurator.configureAndWatch(arg0.getServletContext().getRealPath(
          "/WEB-INF/" + "myLog4j.properties"),5 * 1000);
    } catch (Exception e) {
      e.printStackTrace();
    }

  }

}
   - create your own [b]myLog4j.properties[/b] file
- use the logger in your application:

private static Logger myLogger = Logger.getLogger(Foo.class);

br,
Vlad