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.client.config.utils;
  
  import com.alibaba.nacos.client.env.NacosClientProperties;
  import com.alibaba.nacos.client.utils.LogUtils;
  import org.slf4j.Logger;
  
  /**
   * Get jvm config.
   *
   * @author Nacos
   */
  public class JvmUtil {
      
      /**
       * whether is multi instance.
       *
       * @return whether multi
       */
      public static Boolean isMultiInstance() {
          return isMultiInstance;
      }
      
      private static Boolean isMultiInstance = false;
      
      private static final String TRUE = "true";
      
      private static final Logger LOGGER = LogUtils.logger(JvmUtil.class);
      
      private static final String IS_MULTI_INSTANCE_PROPERTY = "isMultiInstance";
      
      private static final String DEFAULT_IS_MULTI_INSTANCE = "false";
      
      static {
          init();
      }
      
      private static void init() {
          String multiDeploy = NacosClientProperties.PROTOTYPE
                  .getProperty(IS_MULTI_INSTANCE_PROPERTY, DEFAULT_IS_MULTI_INSTANCE);
          if (TRUE.equals(multiDeploy)) {
              isMultiInstance = true;
          }
          LOGGER.info("isMultiInstance:{}", isMultiInstance);
      }
  }
  