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List:       log4j-user
Subject:    RE: Changing log4j configuration runtime ...
From:       "Preetam Palwe" <preetamp () aftek ! com>
Date:       2009-06-22 8:16:08
Message-ID: 000801c9f310$05fcf520$11f6df60$ () com
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It worked!!!

Just added ... 
properties.put("log4j.reset", "true");


Thanks !!!


-----Original Message-----
From: Preetam Palwe [mailto:preetamp@aftek.com] 
Sent: Monday, June 22, 2009 1:23 PM
To: Log4J Users List
Subject: RE: Changing log4j configuration runtime ...

I tried using 
new PropertyConfigurator().doConfigure(properties, LogManager
		    .getLoggerRepository());

But still the configuration is not getting reflected !

Any idea?




-----Original Message-----
From: Preetam Palwe [mailto:preetamp@aftek.com] 
Sent: Monday, June 22, 2009 12:54 PM
To: 'Log4J Users List'
Subject: RE: Changing log4j configuration runtime ...

Or in other words 
I want to do 

PropertyConfigurator.reconfigure(Properties prop);

Is there any way to do this ?



-----Original Message-----
From: Preetam Palwe [mailto:preetamp@aftek.com] 
Sent: Monday, June 22, 2009 12:13 PM
To: 'Log4J Users List'
Subject: RE: Changing log4j configuration runtime ...

Thanks Yair for the reply!

I have used property file only. 
The thing is the property file is open and if someone edit it and restart the java \
process he would be able to see all the DEBUG logs (which contains some critical \
information)

I dont want this to happen so want to change at runtime (in code) the configuration!


-----Original Message-----
From: Yair Ogen [mailto:yairogen@gmail.com] 
Sent: Sunday, June 21, 2009 2:38 PM
To: Log4J Users List
Subject: Re: Changing log4j configuration runtime ...

Why not use a regular property file?

Then when you to update the file you can load the changes automatically
using the "PropertyConfigurator.configureAndWatch" mechanism.


On Sun, Jun 21, 2009 at 11:41 AM, Preetam Palwe <preetamp@aftek.com> wrote:

> Hello all,
> 
> 
> 
> I have successfully configured log4j in my standalone java application
> using PropertyConfigurator.configure()
> 
> Here is the configuration file
> 
> 
> 
> log4j.rootLogger=DBUG, LogFile
> 
> 
> 
> log4j.logger.com.server.core=INFO
> 
> log4j.logger. com.server.core.SecurityManager =DEBUG
> 
> log4j.logger. com.server.core.SecurityPatternsCreator =DEBUG
> 
> 
> 
> 
> log4j.appender.LogFile=org.apache.log4j.RollingFileAppender
> 
> log4j.appender.LogFile.File=c:/server.log
> 
> log4j.appender.LogFile.MaxFileSize=5MB
> 
> log4j.appender.LogFile.MaxBackupIndex=10
> 
> 
> log4j.appender.LogFile.layout=org.apache.log4j.PatternLayout
> 
> log4j.appender.LogFile.layout.ConversionPattern=%d{yyyy
> MM dd HH:mm:ss:SSS}# [%-5p]# [%t]# %c# %C{1}.%M# %m%n
> 
> 
> 
> In case of my application I have a security related library
> (securitylib.jar) in which there we do some is a critical security
> related processing. And I want to set logging level of "INFO" to all the
> classes/loggers from this jar.
> 
> The log4j configuration is done before loading securitylib.jar using
> above configuration file.
> 
> When securitylib.jar is loaded I tried to re-configure log4j using
> following code.
> 
> (what I have done here is removed all the explicit loggers set in
> configuration file, updated the configuration properties and configured
> logger again)
> 
> 
> 
> But when I test the system I am still able to see the DEBUG logs for
> classes/loggers com.server.core.SecurityManager and
> com.server.core.SecurityPatternsCreator (which I had marked as DEBUG in
> config files)
> 
> 
> 
> My questions are ...
> 
> 1.       Why after reconfiguring the loggers the new configuration is
> not getting reflected ?
> 
> 2.       Is there any way to get the current log4j configuration and
> change it at runtime ?
> 
> 
> 
> Thanks in advance for your help!
> 
> ~PP
> 
> 
> 
> private void reinitLog4j()
> 
> {
> 
> try
> 
> {
> 
> String log4jFile = System.getProperty("log4j.file");
> 
> Properties properties = new Properties();
> 
> properties.load(new FileInputStream(log4jFile));
> 
> updateLoggingConfiguration(properties);
> 
> PropertyConfigurator.configure(properties);
> 
> }
> 
> catch (IOException ioEx)
> 
> {
> 
> throw new RuntimeException("failed to reconfigure
> logger "
> 
> + ioEx.getMessage(), ioEx);
> 
> }
> 
> logger = Logger.getLogger(this.getClass());
> 
> logger.info("Log4j RE initialised to use INFO logs
> everywhere !");
> 
> logger.debug("THIS SHOULD NEVER COME IN LOGS");
> 
> }
> 
> 
> 
> private void updateLoggingConfiguration(Properties properties)
> 
> {
> 
> for (Iterator iterator =
> properties.entrySet().iterator(); iterator
> 
> .hasNext();)
> 
> {
> 
> Entry entry = (Entry) iterator.next();
> 
> String key = (String) entry.getKey();
> 
> if (key.equalsIgnoreCase("log4j.rootLogger"))
> 
> {
> 
> 
> entry.setValue(getRootLoggerConfiguration((String) entry
> 
> .getValue()));
> 
> }
> 
> else if (key.startsWith("log4j.logger"))
> 
> {
> 
> iterator.remove();
> 
> }
> 
> }
> 
> }
> 
> 
> 
> private String getRootLoggerConfiguration(String currentConfig)
> 
> {
> 
> String[] tokens = IOUtil.tokenizeString(currentConfig,
> ",");
> 
> StringBuilder builder = new StringBuilder();
> 
> for (int i = 0; i < tokens.length; i++)
> 
> {
> 
> if (i == 0)
> 
> {
> 
> builder.append("INFO");
> 
> continue;
> 
> }
> 
> builder.append(", " + tokens[i]);
> 
> }
> 
> return builder.toString();
> 
> }
> 
> 
> 
> 
> 
> 
> 
> 



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