slider-core/src/main/java/org/apache/slider/server/appmaster/web/AgentService.java

/*
 * 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.slider.server.appmaster.web;

import org.apache.hadoop.service.AbstractService;
import org.apache.slider.server.appmaster.web.rest.agent.AgentWebApp;

/**
 *
 */
public class AgentService extends AbstractService {
  private volatile AgentWebApp webApp;

  public AgentService(String name) {
    super(name);
  }

  public AgentService(String name, AgentWebApp app) {
    super(name);
    webApp = app;
  }

  @Override
  protected void serviceStart() throws Exception {

  }

  /**
   * Stop operation stops the webapp; sets the reference to null
   * @throws Exception
   */
  @Override
  protected void serviceStop() throws Exception {
    if (webApp != null) {
      webApp.stop();
      webApp = null;
    }
  }
}