dccl.h

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// Copyright 2016-2022:
//   GobySoft, LLC (2013-)
//   Community contributors (see AUTHORS file)
// File authors:
//   Toby Schneider <toby@gobysoft.org>
//
//
// This file is part of the Goby Underwater Autonomy Project Libraries
// ("The Goby Libraries").
//
// The Goby Libraries are free software: you can redistribute them and/or modify
// them under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 2.1 of the License, or
// (at your option) any later version.
//
// The Goby Libraries are distributed in the hope that they will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Goby.  If not, see <http://www.gnu.org/licenses/>.
 
#ifndef GOBY_MIDDLEWARE_MARSHALLING_DCCL_H
#define GOBY_MIDDLEWARE_MARSHALLING_DCCL_H
 
#include "detail/dccl_serializer_parser.h"
 
#include "protobuf.h"
 
namespace goby
{
namespace middleware
{
namespace protobuf
{
class InterVehicleSubscription;
} // namespace protobuf
 
template <typename DataType>
struct SerializerParserHelper<DataType, MarshallingScheme::DCCL>
    : public detail::DCCLSerializerParserHelperBase
{
  public:
    static std::vector<char> serialize(const DataType& msg)
    {
        std::lock_guard<std::mutex> lock(dccl_mutex_);
        check_load<DataType>();
        std::vector<char> bytes(codec().size(msg), 0);
        codec().encode(bytes.data(), bytes.size(), msg);
        return bytes;
    }
 
    static std::string type_name(const DataType& d = DataType())
    {
        return DataType::descriptor()->full_name();
    }
 
    template <typename CharIterator>
    static std::shared_ptr<DataType> parse(CharIterator bytes_begin, CharIterator bytes_end,
                                           CharIterator& actual_end,
                                           const std::string& type = type_name())
    {
        std::lock_guard<std::mutex> lock(dccl_mutex_);
        check_load<DataType>();
        auto msg = std::make_shared<DataType>();
        actual_end = codec().decode(bytes_begin, bytes_end, msg.get());
        return msg;
    }
 
    static unsigned id()
    {
        std::lock_guard<std::mutex> lock(dccl_mutex_);
        check_load<DataType>();
        return codec().template id<DataType>();
    }
 
    static unsigned id(const google::protobuf::Message& d) { return id(); }
 
  private:
};
 
template <>
struct SerializerParserHelper<google::protobuf::Message, MarshallingScheme::DCCL>
    : public detail::DCCLSerializerParserHelperBase
{
  public:
    static std::vector<char> serialize(const google::protobuf::Message& msg)
    {
        std::lock_guard<std::mutex> lock(dccl_mutex_);
        check_load(msg.GetDescriptor());
        std::vector<char> bytes(codec().size(msg), 0);
        codec().encode(bytes.data(), bytes.size(), msg);
        return bytes;
    }
 
    static std::string type_name(const google::protobuf::Message& d)
    {
        return type_name(d.GetDescriptor());
    }
 
    static std::string type_name(const google::protobuf::Descriptor* desc)
    {
        return desc->full_name();
    }
 
    template <typename CharIterator>
    static std::shared_ptr<google::protobuf::Message>
    parse(CharIterator bytes_begin, CharIterator bytes_end, CharIterator& actual_end,
          const std::string& type, bool user_pool_first = false)
    {
        std::lock_guard<std::mutex> lock(dccl_mutex_);
 
        auto msg = dccl::DynamicProtobufManager::new_protobuf_message<
            std::shared_ptr<google::protobuf::Message>>(type, user_pool_first);
 
        check_load(msg->GetDescriptor());
        actual_end = codec().decode(bytes_begin, bytes_end, msg.get());
        return msg;
    }
 
    static unsigned id(const google::protobuf::Descriptor* desc)
    {
        std::lock_guard<std::mutex> lock(dccl_mutex_);
        check_load(desc);
        return codec().id(desc);
    }
 
    static unsigned id(const google::protobuf::Message& d) { return id(d.GetDescriptor()); }
 
  private:
};
 
} // namespace middleware
} // namespace goby
 
#endif