import java.io.FileNotFoundException;

import java.io.PrintStream;

import java.io.UnsupportedEncodingException;

public class Logger {

private static Logger masterLogger;

private PrintStream masterLog;

private Logger() throws FileNotFoundException, UnsupportedEncodingException {

masterLog = new PrintStream("master-server.log", "UTF-8");

System.setErr(masterLog); // direct error messages to masterLog

}

public static Logger getInstance() throws FileNotFoundException,

UnsupportedEncodingException {

if (masterLogger == null) {

return masterLogger = new Logger();

} else {

return masterLogger;

}

}

public void logMessage(String msg) {

masterLog.println(msg);

}

public void closeLogger() {

masterLog.close();

}

}