content: /*
   * Copyright (C) 2010-2101 Alibaba Group Holding Limited.
   *
   * 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.otter.manager.web.home.module.screen.api;
  
  import javax.annotation.Resource;
  
  import org.apache.commons.lang.StringUtils;
  
  import com.alibaba.citrus.turbine.dataresolver.Param;
  import com.alibaba.otter.manager.biz.config.channel.ChannelService;
  
  /**
   * @author zebin.xuzb @ 2012-5-18
   */
  public class ChannelOp extends AbstractJsonScreen<String> {
  
      private final static String START = "start";
      private final static String STOP  = "stop";
  
      @Resource(name = "channelService")
      private ChannelService      channelService;
  
      public void execute(@Param("id") Long id, @Param("command") String command) {
  
          try {
              if (StringUtils.equalsIgnoreCase(command, START)) {
                  channelService.startChannel(id);
              } else if (StringUtils.equalsIgnoreCase(command, STOP)) {
                  channelService.stopChannel(id);
              } else {
                  returnError("please add specfy the 'command' param.");
                  return;
              }
              returnSuccess();
          } catch (Exception e) {
              String errorMsg = String.format("error happens while [%s] channel with id [%d]", command, id);
              log.error(errorMsg, e);
              returnError(errorMsg);
          }
      }
  }
  