content: /*
   * Copyright 1999-2023 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.core.context.addition;
  
  import com.alibaba.nacos.common.utils.VersionUtils;
  
  import java.util.HashMap;
  import java.util.Map;
  
  /**
   * Nacos engine context, to store some environment and engine information context. Such as version or system information.
   *
   * @author xiweng.yy
   */
  public class EngineContext {
      
      /**
       * Nacos server version, such as v2.4.0.
       */
      private String version;
      
      private final Map<String, String> contexts;
      
      public EngineContext() {
          version = VersionUtils.version;
          contexts = new HashMap<>(1);
      }
      
      public String getVersion() {
          return version;
      }
      
      public void setVersion(String version) {
          this.version = version;
      }
      
      public String getContext(String key) {
          return contexts.get(key);
      }
      
      public String getContext(String key, String defaultValue) {
          return contexts.getOrDefault(key, defaultValue);
      }
      
      public void setContext(String key, String value) {
          contexts.put(key, value);
      }
  }
  