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 backtype.storm.metric;
  
  import backtype.storm.Config;
  import backtype.storm.metric.api.IMetricsConsumer;
  import backtype.storm.task.IBolt;
  import backtype.storm.task.OutputCollector;
  import backtype.storm.task.TopologyContext;
  import backtype.storm.tuple.Tuple;
  import java.util.Collection;
  import java.util.Map;
  
  @Deprecated
  public class MetricsConsumerBolt implements IBolt {
      IMetricsConsumer _metricsConsumer;
      String _consumerClassName;
      OutputCollector _collector;
      Object _registrationArgument;
  
      public MetricsConsumerBolt(String consumerClassName, Object registrationArgument) {
          _consumerClassName = consumerClassName;
          _registrationArgument = registrationArgument;
      }
  
      @Override
      public void prepare(Map stormConf, TopologyContext context, OutputCollector collector) {
          try {
              _metricsConsumer = (IMetricsConsumer) Class.forName(_consumerClassName).newInstance();
          } catch (Exception e) {
              throw new RuntimeException("Could not instantiate a class listed in config under section " +
                      Config.TOPOLOGY_METRICS_CONSUMER_REGISTER
                      + " with fully qualified name " + _consumerClassName, e);
          }
          _metricsConsumer.prepare(stormConf, _registrationArgument, context, collector);
          _collector = collector;
      }
  
      @Override
      public void execute(Tuple input) {
          _metricsConsumer.handleDataPoints((IMetricsConsumer.TaskInfo) input.getValue(0), (Collection) input.getValue(1));
          _collector.ack(input);
      }
  
      @Override
      public void cleanup() {
          _metricsConsumer.cleanup();
      }
  
  }
  