ProducerConsumerEdge.hpp

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#ifndef HTGS_PRODUCERCONSUMEREDGE_HPP
#define HTGS_PRODUCERCONSUMEREDGE_HPP

#include <htgs/core/graph/edge/EdgeDescriptor.hpp>
#include <htgs/api/ITask.hpp>
#include <htgs/core/graph/AnyTaskGraphConf.hpp>
#ifdef WS_PROFILE
#include <htgs/core/graph/profile/CustomProfile.hpp>
#endif

namespace htgs {

template<class T, class U, class W>
class ProducerConsumerEdge : public EdgeDescriptor {
 public:

  ProducerConsumerEdge(ITask<T, U> *producer, ITask<U, W> *consumer) : producer(producer), consumer(consumer) {}

  ~ProducerConsumerEdge() override {}

  void applyEdge(AnyTaskGraphConf *graph) override {
    TaskManager<T, U> *producerTaskManager = graph->getTaskManager(producer);
    TaskManager<U, W> *consumerTaskManager = graph->getTaskManager(consumer);

    auto connector = consumerTaskManager->getInputConnector();

#ifdef WS_PROFILE
    bool newConnector = false;
#endif
    if (connector == nullptr) {
#ifdef WS_PROFILE
      newConnector = true;
#endif
            connector = std::shared_ptr<Connector<U>>(new Connector<U>());
    }

    if (producerTaskManager->getOutputConnector() != nullptr)
      throw std::runtime_error(
          "Error Producer Task: " + producerTaskManager->getName() + " for " + consumerTaskManager->getName()
          + " is already connected to the graph! Are you trying to reuse the same instance and have "
          + producerTaskManager->getName() + " produce to mutiple tasks?");

    connector->incrementInputTaskCount();

    consumerTaskManager->setInputConnector(connector);
    producerTaskManager->setOutputConnector(connector);
#ifdef WS_PROFILE
    // Add nodes
    std::shared_ptr<ProfileData> producerData(new CreateNodeProfile(producer, graph, producer->getName()));
    std::shared_ptr<ProfileData> consumerData(new CreateNodeProfile(consumer, graph, consumer->getName()));
    std::shared_ptr<ProfileData> connectorData(new CreateConnectorProfile(connector.get(), graph, connector->getProducerCount(), ""));

    graph->sendProfileData(producerData);
    graph->sendProfileData(consumerData);
    graph->sendProfileData(connectorData);

    std::shared_ptr<ProfileData> producerConnectorData(new CreateEdgeProfile(producer, connector.get(), "", nullptr));
    graph->sendProfileData(producerConnectorData);

    if (newConnector) {
      std::shared_ptr<ProfileData> connectorConsumerData(new CreateEdgeProfile(connector.get(), consumer, "", nullptr));
      graph->sendProfileData(connectorConsumerData);
    }



#endif
  }

  EdgeDescriptor *copy(AnyTaskGraphConf *graph) override {
    return new ProducerConsumerEdge(graph->getCopy(producer), graph->getCopy(consumer));
  }

 private:
  ITask<T, U> *producer; 
  ITask<U, W> *consumer; 

};
}
#endif //HTGS_PRODUCERCONSUMEREDGE_HPP