runtime « log4j « Java Enterprise Q&A

1. Custom logging to gather messages at runtime    stackoverflow.com

Is there a way to create a log4j Logger at runtime that will gather logging messages into a buffer? I currently have a class that logs a number of events. For ...

2. How do I adjust log4j levels at runtime?    stackoverflow.com

I have a simple web app running on Tomcat 5.5 with log4j for logging. Occasionally I need to push the logging down to DEBUG but most of the time I'm happy ...

3. configure log4j to log to custom file at runtime    stackoverflow.com

Can anyone please guide me as to how I can configure log4j to log to a specific file that I specify at run-time.The name and path of the log file are ...

4. how can I set the log4j conversionpattern at runtime    stackoverflow.com

I have a Java app while parses input from a spreadsheet. I've added the ability to run just the parser part standalone from an ant task. However the normal log4j pattern ...

5. Log4J – Runtime variable substitution    stackoverflow.com

Log4J appears to have an annoying restriction – at runtime, variable substitution does not appear to work. In this example File: Log4j.properties

file_pattern=%d{ISO8601} %-5p %m%n log4j.rootLogger=DEBUG, FileAppender ...

6. How can I access the configured Log4J appenders at runtime?    stackoverflow.com

I want to configure an appender at startup and then dynamically add and remove it from various loggers on demand. I'd prefer to have log4j configure this appender itself, and ...

7. Making log4j aware of changes in the configuration at runtime    stackoverflow.com

I wonder if there is a non-programatical way of making log4j aware of changes on the configuration at runtime. I know I can use

static {
  PropertyConfigurator.configureAndWatch("log4j.properties", 100);
}

8. Setting log level of message at runtime in slf4j    stackoverflow.com

When using log4j, the Logger.log(Priority p, Object message) method is available and can be used to log a message at a log level determined at runtime. We're using this fact and ...

9. can we change the logging level of log4j at runtime    stackoverflow.com

i have an issue, i want to change the logging level of log4j at runtime, i have tried many things with log4j.properties file, i have also tried to written a code ...

10. creating log4j log file name at run time    stackoverflow.com

I am working on an module for import process which can be triggered by various way by user click by schdular etc. and it will go with the phasse of validation ...

11. Can we change the logging level of a single log-statement during run-time?    stackoverflow.com

I have the following code:

private static final Log LOGGER = LogFactory.getLog(MyClass.class);
if (LOGGER.isErrorEnabled()) {
    LOGGER.error("ID_1: Log Message: " + parameter));
}

12. how to access log4j configuration at runtime    stackoverflow.com

and echo its properties?

i want to check if the logger configured properly, and anyway, what is configured at all.

13. Changing log4j logfile at runtime?    forums.oracle.com

The logging does not have to be set up using a config file it can be set up programatically. So if you did this you could then attempt to change where the log file is logging to. Since the rolling file appenders to this sort of thing (i.e. changing the file they are logging to) I see no reason why you ...

14. setting log4j properties at runtime    forums.oracle.com

Hi, I am using log4j and want to take the logfile name as a command line argument. Can anyone help as to how to set the properties which are done statically in log4j.propreties file.... I tried logProperties.setProperty("log4j.appender.ROOT", "org.apache.log4j.RollingFileAppender"); logProperties.setProperty("log4j.appender.ROOT.File", fileName); logProperties.setProperty("og4j.appender.ROOT.layout", "org.apache.log4j.PatternLayout"); logProperties.setProperty("log4j.appender.ROOT.layout.ConversionPattern", "%d{ISO8601} - <<<<< [%F][%M] %m >>>>>%n"); but that doesnot seem to work...as the log file itself is not ...

15. How to change log level in log4j at runtime    forums.oracle.com

The info statement prints "this is info" then the next info statement prints "log level is DEBUG" the next statement prints true but the intermediate debug statement does not print. I have done this before in a Web app and it works just fine. I do not understand what is going on. Can someone please help me understand this.

16. how to set log4j at runtime    forums.oracle.com

17. how to change log4j log level at runtime.    forums.oracle.com

I know there are some frameworks available in the java world.. but if i want to achieve that in my application what can be the best way to do so? can i maintain a hashmap, keep that in session and before logging actually check the log level value in that session everytime?? how badly it can affect my performance?? are there ...