content: /**
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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.jstorm.ons.consumer;
  
  import java.util.Map;
  
  import org.apache.commons.lang.StringUtils;
  
  import com.alibaba.jstorm.ons.OnsConfig;
  import com.alibaba.jstorm.utils.JStormUtils;
  import com.aliyun.openservices.ons.api.PropertyKeyConst;
  
  public class ConsumerConfig extends OnsConfig {
  
      private static final long serialVersionUID = 4292162795544528064L;
      private final String consumerId;
      private final int consumerThreadNum;
      private final String nameServer;
  
      public ConsumerConfig(Map conf) {
          super(conf);
  
          consumerId = (String) conf.get(PropertyKeyConst.ConsumerId);
          if (StringUtils.isBlank(consumerId)) {
              throw new RuntimeException(PropertyKeyConst.ConsumerId + " hasn't been set");
          }
          consumerThreadNum = JStormUtils.parseInt(
                  conf.get(PropertyKeyConst.ConsumeThreadNums), 4);
  
          nameServer = (String) conf.get(PropertyKeyConst.NAMESRV_ADDR);
          if (nameServer != null) {
              String namekey = "rocketmq.namesrv.domain";
  
              String value = System.getProperty(namekey);
              if (value == null) {
  
                  System.setProperty(namekey, nameServer);
              } else if (!value.equals(nameServer)) {
                  throw new RuntimeException("Different nameserver address in the same worker "
                          + value + ":" + nameServer);
              }
          }
      }
  
      public String getConsumerId() {
          return consumerId;
      }
  
      public int getConsumerThreadNum() {
          return consumerThreadNum;
      }
  
      public String getNameServer() {
          return nameServer;
      }
  }
  