TickConverter.cpp

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/* ============================================================
 *
 * This file is a part of CCA project
 *
 * Copyright (C) 2014 by Arne Nordmann <anordman at cor-lab dot uni-bielefeld dot de>
 *
 * This file may be licensed under the terms of the
 * GNU Lesser General Public License Version 3 (the ``LGPL''),
 * or (at your option) any later version.
 *
 * Software distributed under the License is distributed
 * on an ``AS IS'' basis, WITHOUT WARRANTY OF ANY KIND, either
 * express or implied. See the LGPL for the specific language
 * governing rights and limitations.
 *
 * You should have received a copy of the LGPL along with this
 * program. If not, go to http://www.gnu.org/licenses/lgpl.html
 * or write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The development of this software was supported by:
 *   CoR-Lab, Research Institute for Cognition and Robotics
 *     Bielefeld University
 *
 * ============================================================ */

#include "TickConverter.h"

#include <rsb/converter/SerializationException.h>
#include <rsb/converter/ProtocolBufferConverter.h>

#include <rst/cbse/Tick.pb.h>

using namespace std;
using namespace nemo;

namespace cca {
namespace timing {
namespace converters {

TickConverter::TickConverter() :
                rsb::converter::Converter<string>(
                        rsc::runtime::typeName<rst::cbse::Tick>(),
                        RSB_TYPE_TAG(cca::timing::Tick)), converter() {
    converter = boost::shared_ptr<rsb::converter::Converter<string> >(
            new rsb::converter::ProtocolBufferConverter<rst::cbse::Tick>);
}

TickConverter::~TickConverter() {
}

string TickConverter::getWireSchema() const {
    return converter->getWireSchema();
}

string TickConverter::serialize(const rsb::AnnotatedData &data, string &wire) {

    // Cast to original domain type
    boost::shared_ptr<cca::timing::Tick> domain = boost::static_pointer_cast<
            cca::timing::Tick>(data.second);

    // Fill protocol buffer object
    rst::cbse::Tick proto;

    //    1. reserve()
    //    2. std::copy(begin, begin+n) // oder memcpy
    proto.set_sequence_number(domain->getSequenceNumber());
    proto.mutable_timestamp()->set_time(domain->getTimeStamp());
    proto.mutable_virtual_timestamp()->set_time(domain->getVirtualTimeStamp());
    proto.mutable_timestep()->set_time(domain->getTimeStep());
    proto.mutable_virtual_timestep()->set_time(domain->getVirtualTimeStep());

    // Use embedded ProtoBuf converter for serialization to wire
    return converter->serialize(
            make_pair(rsc::runtime::typeName<rst::cbse::Tick>(),
                    boost::shared_ptr<void>(&proto, rsc::misc::NullDeleter())),
            wire);
}

rsb::AnnotatedData TickConverter::deserialize(const std::string &wireType,
        const std::string &wire) {

    // Deserialize and cast to specific ProtoBuf type
    boost::shared_ptr<rst::cbse::Tick> proto = boost::static_pointer_cast<
            rst::cbse::Tick>(converter->deserialize(wireType, wire).second);

    // Read domain data from ProtoBuf
    TickPtr domain(new cca::timing::Tick(proto->sequence_number()));
    domain->setTimeStamp(proto->timestamp().time());
    domain->setVirtualTimeStamp(proto->virtual_timestamp().time());
    domain->setTimeStep(proto->timestep().time());
    domain->setVirtualTimeStep(proto->virtual_timestep().time());

    return rsb::AnnotatedData(getDataType(), domain);
}

}
}
}