Writing logs to a single file from Multiple Classes

[ankuagar Ag]

Hi,

I have created a CustomLogger class where I am adding file handler stuff to the default Logger. I want to use this logger into rest of my application.

When I am using this logger from two different classes, two log files are generated:

- ApplicationLog.log
- ApplicationLog.log.1

I want the logs to be written in a single file. Is this happening because of multiple threads? Please help.

Here is the Logger Code:

public class CustomLogger{
	private static Logger logger;
	private static FileHandler fileHandler;
	private static SimpleFormatter simpleFormatter;
	
	//Log file Name
	private static final String filename = "/opt/Application/ApplicationLog.log";
	
	//Number of log files
	private static final int count= 1;
	
	//Size of each log file
	private static final int limit = 1024*100; //100 Kb
	
	//Append into log file
	private static final boolean append = true;
	
	public static Logger getLogger(String name){
		try {
			logger = Logger.getLogger(name);
			
			simpleFormatter = new SimpleFormatter();
			fileHandler = new FileHandler(filename, limit, count, append);
			fileHandler.setFormatter(simpleFormatter);
			
			logger.addHandler(fileHandler);
		} catch (SecurityException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}

		return logger;
	}
}

Calling Code (2 Different Class):
CustomLogger.getLogger().info("Dummy Message");

[ankuagar Ag]

Got the error with my code.

Was instantiating a new instance of fileHandler every time getLogger is called. This creates a new file since previous file is locked with other handler.

Changed initialization of Logger to a different method and implemented Singleton on the CustomLogger.