content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.alibaba.nacos.common.utils;
  
  import org.slf4j.Logger;
  
  /**
   * Logger utils.
   *
   * @author <a href="mailto:liaochuntao@live.com">liaochuntao</a>
   */
  public final class LoggerUtils {
  
      private LoggerUtils() {
      }
      
      public static final String TRACE = "TRACE";
      
      public static final String INFO = "INFO";
      
      public static final String DEBUG = "DEBUG";
      
      public static final String WARN = "WARN";
      
      public static final String ERROR = "ERROR";
      
      /**
       * Print if log debug level is enabled.
       *
       * @param logger logger
       * @param s      log message
       * @param args   arguments
       */
      public static void printIfDebugEnabled(Logger logger, String s, Object... args) {
          if (logger.isDebugEnabled()) {
              logger.debug(s, args);
          }
      }
      
      /**
       * Print if log info level is enabled.
       *
       * @param logger logger
       * @param s      log message
       * @param args   arguments
       */
      public static void printIfInfoEnabled(Logger logger, String s, Object... args) {
          if (logger.isInfoEnabled()) {
              logger.info(s, args);
          }
      }
      
      /**
       * Print if log trace level is enabled.
       *
       * @param logger logger
       * @param s      log message
       * @param args   arguments
       */
      public static void printIfTraceEnabled(Logger logger, String s, Object... args) {
          if (logger.isTraceEnabled()) {
              logger.trace(s, args);
          }
      }
      
      /**
       * Print if log warn level is enabled.
       *
       * @param logger logger
       * @param s      log message
       * @param args   arguments
       */
      public static void printIfWarnEnabled(Logger logger, String s, Object... args) {
          if (logger.isWarnEnabled()) {
              logger.warn(s, args);
          }
      }
      
      /**
       * Print if log error level is enabled.
       *
       * @param logger logger
       * @param s      log message
       * @param args   arguments
       */
      public static void printIfErrorEnabled(Logger logger, String s, Object... args) {
          if (logger.isErrorEnabled()) {
              logger.error(s, args);
          }
      }
      
  }
  