text: /*
   * 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.sshd.common;
  
  import java.io.IOException;
  
  import org.apache.sshd.common.future.CloseFuture;
  import org.apache.sshd.common.util.Buffer;
  
  /**
   * See RFC 4253 [SSH-TRANS] and the SSH_MSG_SERVICE_REQUEST packet.  Examples include ssh-userauth
   * and ssh-connection but developers are also free to implement their own custom service.
   *
   * @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a>
   */
  public interface Service extends Closeable {
  
      Session getSession();
  
      // TODO: this is specific to clients
      void start();
  
      /**
       * Service the request.
       * @param buffer
       * @throws Exception
       */
      void process(byte cmd, Buffer buffer) throws Exception;
  
      /**
       * Close the service.
       * @param immediately
       *
       */
      CloseFuture close(boolean immediately);
  
  }
  