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.csp.sentinel.cluster.server.command.handler;
  
  import com.alibaba.csp.sentinel.cluster.server.config.ClusterServerConfigManager;
  import com.alibaba.csp.sentinel.cluster.server.config.ServerFlowConfig;
  import com.alibaba.csp.sentinel.cluster.server.config.ServerTransportConfig;
  import com.alibaba.csp.sentinel.command.CommandHandler;
  import com.alibaba.csp.sentinel.command.CommandRequest;
  import com.alibaba.csp.sentinel.command.CommandResponse;
  import com.alibaba.csp.sentinel.command.annotation.CommandMapping;
  import com.alibaba.csp.sentinel.util.StringUtil;
  import com.alibaba.fastjson.JSONObject;
  
  /**
   * @author Eric Zhao
   * @since 1.4.0
   */
  @CommandMapping(name = "cluster/server/fetchConfig", desc = "get cluster server config")
  public class FetchClusterServerConfigHandler implements CommandHandler<String> {
  
      @Override
      public CommandResponse<String> handle(CommandRequest request) {
          String namespace = request.getParam("namespace");
          if (StringUtil.isEmpty(namespace)) {
              return globalConfigResult();
          }
          return namespaceConfigResult(namespace);
      }
  
      private CommandResponse<String> namespaceConfigResult(/*@NonEmpty*/ String namespace) {
          ServerFlowConfig flowConfig = new ServerFlowConfig()
              .setExceedCount(ClusterServerConfigManager.getExceedCount(namespace))
              .setMaxOccupyRatio(ClusterServerConfigManager.getMaxOccupyRatio(namespace))
              .setIntervalMs(ClusterServerConfigManager.getIntervalMs(namespace))
              .setSampleCount(ClusterServerConfigManager.getSampleCount(namespace));
          JSONObject config = new JSONObject()
              .fluentPut("flow", flowConfig);
          return CommandResponse.ofSuccess(config.toJSONString());
      }
  
      private CommandResponse<String> globalConfigResult() {
          ServerTransportConfig transportConfig = new ServerTransportConfig()
              .setPort(ClusterServerConfigManager.getPort())
              .setIdleSeconds(ClusterServerConfigManager.getIdleSeconds());
          ServerFlowConfig flowConfig = new ServerFlowConfig()
              .setExceedCount(ClusterServerConfigManager.getExceedCount())
              .setMaxOccupyRatio(ClusterServerConfigManager.getMaxOccupyRatio())
              .setIntervalMs(ClusterServerConfigManager.getIntervalMs())
              .setSampleCount(ClusterServerConfigManager.getSampleCount());
          JSONObject config = new JSONObject()
              .fluentPut("transport", transportConfig)
              .fluentPut("flow", flowConfig)
              .fluentPut("namespaceSet", ClusterServerConfigManager.getNamespaceSet());
          return CommandResponse.ofSuccess(config.toJSONString());
      }
  }
  
  