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qt6-migration-pipeline/Lts/DDS/Generic/generic_data_writer.h
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#pragma once
#include <dds/pub/DataWriter.hpp>
#include <dds/sub/SampleInfo.hpp>
#include <dds/topic/find.hpp>
#include <dds/topic/Topic.hpp>
#include <DDS/Generic/generic_logger.h>
#include <DDS/Generic/generic_base.h>
namespace DDSGeneric
{
template <typename TOPICTYPE>
class GenericDataWriter final
{
public:
using TopicType = TOPICTYPE;
using DataWriter = dds::pub::DataWriter<TopicType>;
using DataTopic = dds::topic::Topic<TopicType>;
GenericDataWriter()
: m_dataWriter(nullptr)
, m_ddsTopic(nullptr)
, m_logger(DDS::getLogger(DDS::topic_type_name<TopicType>::value(), DDS::DataType::DATA_WRITER))
{}
bool create(const dds::domain::DomainParticipant &participant,
const dds::pub::Publisher &ddsPublisher,
const std::string &topicName = DDS::Helper::getShortTopicName(DDS::topic_type_name<TopicType>::value()))
{
DEBUG_LOG(m_logger) << "IN GenericDataWriter::create ("
<< DDS::topic_type_name<TopicType>::value()
<< ")";
if (participant == nullptr)
{
ERROR_LOG(m_logger) << "Participant not available, aborting. ";
return false;
}
if (m_ddsTopic != nullptr)
{
ERROR_LOG(m_logger) << "Type '"
<< DDS::topic_type_name<TopicType>::value()
<< "' already created";
return false;
}
try {
DEBUG_LOG(m_logger) << "Creating write topic " << topicName << " with type: "
<< DDS::topic_type_name<TopicType>::value();
m_ddsTopic = dds::topic::find<DataTopic>(participant, topicName);
if (m_ddsTopic == nullptr)
m_ddsTopic = DataTopic(participant, topicName);
m_dataWriter = DataWriter(ddsPublisher,
m_ddsTopic,
ddsPublisher.default_datawriter_qos());
if (m_dataWriter == nullptr)
{
ERROR_LOG(m_logger) << "Initialisation of "
<< DDS::topic_type_name<TopicType>::value()
<< " failed ";
return false;
}
}
catch ( const dds::core::Exception &ex )
{
ERROR_LOG(m_logger) << ex.what();
return false;
}
DEBUG_LOG(m_logger) << "dataWriter created ("
<< DDS::topic_type_name<TopicType>::value()
<< ")";
return true;
}
bool write(const TopicType &data,
const dds::core::optional<dds::sub::SampleInfo> &si = dds::core::optional<dds::sub::SampleInfo>())
{
DEBUG_LOG(m_logger) << "IN write ("
<< DDS::topic_type_name<TopicType>::value()
<< ") ";
if (m_dataWriter == nullptr) {
ERROR_LOG(m_logger) << "No dataWriter initialised ";
return false;
}
if (si.is_set())
{
rti::pub::WriteParams writeParams;
rti::core::SampleIdentity sampleIdentity(si.get()->source_guid(), si.get()->publication_sequence_number());
writeParams.related_sample_identity(sampleIdentity);
m_dataWriter->write(data, writeParams);
} else {
m_dataWriter.write(data);
}
return true;
}
bool remove(const TopicType &data, bool errorMsgIfNotExists = true)
{
DEBUG_LOG(m_logger) << "IN remove ("
<< DDS::topic_type_name<TopicType>::value()
<< ") ";
if (m_dataWriter == nullptr) {
ERROR_LOG(m_logger) << "No dataWriter initialised ";
return false;
}
const dds::core::InstanceHandle ih = m_dataWriter.lookup_instance(data);
if (ih.is_nil()) {
if (errorMsgIfNotExists)
ERROR_LOG(m_logger) << "Could not find instance for topic "
<< DDS::topic_type_name<TopicType>::value()
<< " for unregistering!";
return false;
}
m_dataWriter.dispose_instance(ih);
return true;
}
DataWriter dataWriter() const { return m_dataWriter; }
private:
DataWriter m_dataWriter;
DataTopic m_ddsTopic;
NGL::INGLLogger &m_logger;
};
}