ddtDataProducer.hpp

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// @copyright
// (c) Copyright ESO 2020
// All Rights Reserved
// ESO (eso.org) is an Intergovernmental Organization, and therefore special
// legal conditions apply.
//
// @file ddtDataProducer.hpp
// @brief Data Producer.
//
// This class provides the functionality to publish data over network
// and enables sending new data notifications.
//
// @author Matthias Grimm, CGI
// @since  2020/01/16
//
 
#ifndef DDTDATAPRODUCER_HPP_
#define DDTDATAPRODUCER_HPP_
 
#include "ddt/ddtProducerConsumerBase.hpp"
 
namespace mal = ::elt::mal;
namespace datatransfer = ::elt::ddt::datatransfer;
 
static const std::chrono::milliseconds PUBLISH_TIMEOUT{450};
 
namespace ddt {
 
class DdtDataProducer : public DdtProducerConsumerBase {
 public:
  explicit DdtDataProducer(DdtLogger* logger);
 
  DdtDataProducer(const std::string& data_stream_identifier,
                  const int32_t latency, const int32_t deadline,
                  const std::string publishing_uri, DdtLogger* logger);
 
  ~DdtDataProducer() override;
 
  void Publish(DataPacket data_packet);
 
  void Notify(const NotificationType type) override;
 
  std::string get_publishing_uri() const;
 
 private:
  void Initialize(const std::string& data_stream_identifier,
                  const int32_t latency, const int32_t deadline,
                  const std::string pub_uri, DdtLogger* ddt_logger);
 
  std::string CreatePublishingUri(
      const std::string& data_stream_identifier) const;
 
  std::unique_ptr<mal::ps::InstancePublisher<datatransfer::DataPacket>,
                  std::default_delete<
                      mal::ps::InstancePublisher<datatransfer::DataPacket> > >
      data_publisher;
  std::shared_ptr<datatransfer::DataPacket> ddt_data_packet;
 
  double timestamp_prev;
  std::string publishing_uri;
};
 
}  // namespace ddt
 
#endif /* DDTDATAPRODUCER_HPP_ */