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 org.apache.hadoop.chukwa.datacollection.adaptor.heartbeat;
  
  import java.net.InetAddress;
  import java.net.UnknownHostException;
  
  import org.apache.hadoop.chukwa.datacollection.adaptor.AdaptorException;
  import org.apache.hadoop.chukwa.datacollection.agent.ChukwaAgent;
  import org.json.simple.JSONObject;
  
  public class ChukwaStatusChecker implements StatusChecker {
    JSONObject status = new JSONObject();
    ChukwaAgent agent;
    
    @SuppressWarnings("unchecked")
    public ChukwaStatusChecker() throws AdaptorException{
      agent = ChukwaAgent.getAgent();
      status.put("component", "Chukwa.Agent");
      try {
        status.put("host", InetAddress.getLocalHost().getHostName());
      } catch (UnknownHostException e) {
        throw new AdaptorException("Could not get localhost name", e.getCause());
      }
    }
    
    @SuppressWarnings("unchecked")
    @Override
    public JSONObject getStatus() {
      status.put("adaptor.count", agent.getAdaptorList().size());
      return status;
    }
  
    @Override
    public void init(String... args) {
      //not used    
    }
  
  }
  