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Logging within utility classes


By : Kenny Ferguson
Date : October 17 2020, 11:12 PM
hop of those help? I would strongly encourage you to to log independently on the caller in a separate logger either per function or per module, so that you can run your module independently of log4perl used in your caller. Each module will create its own logger with Log::Log4perl->get_logger("module name").
If the caller does not create any appender, the program will simply not log anything and the log4perl in the modules will be ignored from a functional stand point.
code :


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add logging to a utility package


By : Raiden
Date : March 29 2020, 07:55 AM
this one helps. I think the normal way to do it, is not include the Log4j Jar in the package and let the library user to decide which version of Log4j to use.
Also you don't have to worry about where to output the log file, since the user will have its own log4j.properties or log4j.xml configuration.
code :
log4j.logger.com.amazonaws=WARN

Hide Utility Class Constructor : Utility classes should not have a public or default constructor


By : SunnySide
Date : March 29 2020, 07:55 AM
To fix the issue you can do If this class is only a utility class, you should make the class final and define a private constructor:
code :
public final class FilePathHelper {

   private FilePathHelper() {
      //not called
   }
}

Logging for some classes into single file and for some classes into their respective log file using java.util.Logging


By : tfkohl9783
Date : March 29 2020, 07:55 AM
this will help The loggers (instances of java.util.logging.Logger class) are in namespace hierarchy as defined by the names you give the Logger.getLogger(String name).
Therefore you could have one logger attached to com., another one attached to com.consolelogging. and yet another one attached to com.filelogging. names.

What is the best way to add logging to static methods in utility classes?


By : Yanan
Date : March 29 2020, 07:55 AM
I hope this helps you . You could have a static method that defines the logger. You can call this once when you are starting your application.
code :
public static function setLogger(LogInterface $logger)
{
    self::$log = $logger;
}
private static function log()
{
    return Logger::getLogger( "testutil" );
}

Should utility classes in Java EE application be EJB's or classes with static methods


By : Fogliettaz
Date : March 29 2020, 07:55 AM
This might help you
My understanding is that making them EJB improves performance as with ordinary classes with static methods, only one bean could access one utility method at a time.
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