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;
  
  import alluxio.grpc.GrpcService;
  import alluxio.grpc.ServiceType;
  
  import java.io.IOException;
  import java.util.Map;
  import java.util.Set;
  
  /**
   * Interface representing an Alluxio server.
   *
   * @param <T> type of the start options
   */
  public interface Server<T> {
  
    /**
     * @return the server dependencies
     */
    Set<Class<? extends Server>> getDependencies();
  
    /**
     * @return the server's name
     */
    String getName();
  
    /**
     * @return a map from service names to gRPC serviced that serve RPCs for this server
     */
    Map<ServiceType, GrpcService> getServices();
  
    /**
     * Starts the Alluxio server.
     *
     * @param options the start options
     */
    void start(T options) throws IOException;
  
    /**
     * Stops the Alluxio server. Here, anything created or started in {@link #start(T)} should be
     * cleaned up and shutdown.
     */
    void stop() throws IOException;
  
    /**
     * Closes the server.
     */
    void close() throws IOException;
  }
  