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.command.handler;
  
  import java.net.URLDecoder;
  
  import com.alibaba.csp.sentinel.cluster.client.config.ClusterClientConfig;
  import com.alibaba.csp.sentinel.cluster.client.config.ClusterClientConfigManager;
  import com.alibaba.csp.sentinel.command.CommandConstants;
  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.command.entity.ClusterClientStateEntity;
  import com.alibaba.csp.sentinel.log.RecordLog;
  import com.alibaba.csp.sentinel.util.StringUtil;
  import com.alibaba.fastjson.JSON;
  
  /**
   * @author Eric Zhao
   * @since 1.4.0
   */
  @CommandMapping(name = "cluster/client/modifyConfig", desc = "modify cluster client config")
  public class ModifyClusterClientConfigHandler implements CommandHandler<String> {
  
      @Override
      public CommandResponse<String> handle(CommandRequest request) {
          String data = request.getParam("data");
          if (StringUtil.isBlank(data)) {
              return CommandResponse.ofFailure(new IllegalArgumentException("empty data"));
          }
          try {
              data = URLDecoder.decode(data, "utf-8");
              RecordLog.info("[ModifyClusterClientConfigHandler] Receiving cluster client config: {}", data);
              ClusterClientStateEntity entity = JSON.parseObject(data, ClusterClientStateEntity.class);
  
              ClusterClientConfigManager.applyNewConfig(entity.toClientConfig());
              ClusterClientConfigManager.applyNewAssignConfig(entity.toAssignConfig());
  
              return CommandResponse.ofSuccess(CommandConstants.MSG_SUCCESS);
          } catch (Exception e) {
              RecordLog.warn("[ModifyClusterClientConfigHandler] Decode client cluster config error", e);
              return CommandResponse.ofFailure(e, "decode client cluster config error");
          }
      }
  }
  
  