private void infoLog(String format, String addr) {
        if (logger.isInfoEnabled()) {
            if (StringUtils.isNotEmpty(addr)) {
                logger.info(format, addr);
            } else {
                logger.info(format, "UNKNOWN-ADDR");
            }
        }
    }
private void infoLog(String format, String addr) {
        if (logger.isInfoEnabled()) {
            if (StringUtils.isNotEmpty(addr)) {
                logger.info(format, addr);
            } else {
                logger.info(format, "UNKNOWN-ADDR");
            }
        }
    }
private void infoLog ( String format , String addr ) { if ( logger . isInfoEnabled ( ) ) { if ( StringUtils . isNotEmpty ( addr ) ) { logger . info ( format , addr ) ; } else { logger . info ( format , "UNKNOWN-ADDR" ) ; } } }
print info log
@param format
@param addr
print info log