text: /*
   * CppCrail: Native Crail
   *
   * Author: Patrick Stuedi  <pstuedi@gmail.com>
   *
   * Copyright (C) 2015-2018
   *
   * 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.
   */
  
  #ifndef NAMENODE_REQUEST_H
  #define NAMENODE_REQUEST_H
  
  #include "crail/client/common/serializable.h"
  #include "ioutils/byte_buffer.h"
  #include "narpc/rpc_message.h"
  
  using namespace crail;
  
  enum class RpcCommand : short {
    Create = 1,
    Lookup = 2,
    Setfile = 3,
    Removefile = 4,
    Getblock = 6,
    Ioctl = 13,
  };
  enum class RequestType : short {
    Create = 1,
    Lookup = 2,
    Setfile = 3,
    Removefile = 4,
    Getblock = 6,
    Ioctl = 13
  };
  
  class NamenodeRequest : public RpcMessage {
  public:
    NamenodeRequest(short cmd, short type);
    virtual ~NamenodeRequest();
  
    virtual int Write(ByteBuffer &buffer);
    virtual int Update(ByteBuffer &buffer) { return 0; }
    virtual shared_ptr<ByteBuffer> Payload() { return nullptr; }
  
    int Size() const { return sizeof(short) * 2; }
    virtual string ToString() const {
      return "NamenodeRequest:: " + to_string(cmd_) + ", " + to_string(type_);
    }
  
  private:
    short cmd_;
    short type_;
  };
  
  #endif /* NAMENODE_REQUEST_H */
  