loggerをprintf形式で使いたくてこんなクラスを書いてみた。

import org.apache.log4j.Logger;
public class NLogger {
  private Logger logger;
  protected NLogger(String name) {
    logger = Logger.getLogger(name);
  }
  public static NLogger getLogger(Class c){
    return  new NLogger(c.toString());
  }
  public void debug(String fmt, Object ... args){
    logger.debug(String.format(fmt, args));
  }
}