content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.master.service.web;
  
  import alluxio.master.MasterProcess;
  
  /**
   * Created through {@link WebServerService.Factory}.
   * This service differs from {@link PrimaryOnlyWebServerService} because it deploys a web
   * server after being started. It stops said web server after being stopped.
   */
  class AlwaysOnWebServerService extends WebServerService {
    AlwaysOnWebServerService(MasterProcess masterProcess) {
      super(masterProcess);
    }
  
    @Override
    public synchronized void start() {
      LOG.info("Starting {}", this.getClass().getSimpleName());
      startWebServer();
    }
  
    @Override
    public synchronized void promote() {}
  
    @Override
    public synchronized void demote() {}
  
    @Override
    public synchronized void stop() {
      LOG.info("Stopping {}", this.getClass().getSimpleName());
      stopWebServer();
    }
  }
  