code: public void log(final String _message,
                      final int _level)
      {
          switch (_level)  {
              case 4:
                  if (IvyOverSLF4JLogger.LOG.isDebugEnabled())  {
                      IvyOverSLF4JLogger.LOG.debug(_message);
                  }
                  break;
              case 3:
                  if (IvyOverSLF4JLogger.LOG.isWarnEnabled())  {
                      IvyOverSLF4JLogger.LOG.warn(_message);
                  }
                  break;
              case 2:
                  if (IvyOverSLF4JLogger.LOG.isInfoEnabled())  {
                      IvyOverSLF4JLogger.LOG.info(_message);
                  }
                  break;
              case 1:
                  if (IvyOverSLF4JLogger.LOG.isErrorEnabled())  {
                      IvyOverSLF4JLogger.LOG.error(_message);
                  }
                  break;
              default:
                  IvyOverSLF4JLogger.LOG.error("unknown log level " + _level);
                  IvyOverSLF4JLogger.LOG.error(_message);
          }
      }
docs: Logs depending on the <code>_level</code> given <code>_message</code>.
  
  @param _message      message to log
  @param _level        level to log