How to use

setTransportProtocol

method

in

org.streampipes.model.grounding.EventGrounding

/**
 * Assigns a new {@link org.streampipes.model.grounding.TransportProtocol} to the stream definition.
 * @param protocol The transport protocol of the stream at runtime (e.g., Kafka or MQTT). Use
 * {@link org.streampipes.sdk.helpers.Protocols} to use some pre-defined protocols (or create a new protocol as
 *                 described in the developer guide).
 * @return this
 */
public DataStreamBuilder protocol(TransportProtocol protocol) {
  this.eventGrounding.setTransportProtocol(protocol);
  return this;
}

public DataSetBuilder supportedProtocol(TransportProtocol protocol) {
 this.supportedGrounding.setTransportProtocol(protocol);
 return this;
}

  public AdapterDescription() {
    super();
    this.rules = new ArrayList<>();
    this.eventGrounding = new EventGrounding();
    this.config = new ArrayList<>();

    // TODO move to another place
    TransportProtocol tp = new KafkaTransportProtocol();
    tp.setTopicDefinition(new SimpleTopicDefinition("bb"));
    this.eventGrounding.setTransportProtocol(tp);
//        this.eventGrounding.setTransportFormats(Arrays.asList(Formats.jsonFormat()));


  }

 public static EventGrounding makeDummyGrounding() {
  EventGrounding grounding = new EventGrounding();
  grounding.setTransportFormats(Arrays.asList(new TransportFormat()));
  grounding.setTransportProtocol(ProtocolGenerator.makeDummyProtocol());

  return grounding;
 }
}

  public static EventGrounding createEventGrounding(String kafkaHost, int kafkaPort, EventSchema eventSchema) {
    EventGrounding eventGrounding = new EventGrounding();
    KafkaTransportProtocol transportProtocol = new KafkaTransportProtocol();
    transportProtocol.setBrokerHostname(kafkaHost);
    transportProtocol.setKafkaPort(kafkaPort);

    String topic = "org.streampipes.connect." + UUID.randomUUID();
    System.out.println("Topic: " + topic);
    TopicDefinition topicDefinition = new SimpleTopicDefinition(topic);
    transportProtocol.setTopicDefinition(topicDefinition);

    eventGrounding.setTransportProtocol(transportProtocol);


    return eventGrounding;
  }
}

  public static EventGrounding createEventGrounding(String kafkaHost, int kafkaPort, EventSchema eventSchema) {
    EventGrounding eventGrounding = new EventGrounding();
    KafkaTransportProtocol transportProtocol = new KafkaTransportProtocol();
    transportProtocol.setBrokerHostname(kafkaHost);
    transportProtocol.setKafkaPort(kafkaPort);

    String topic = "org.streampipes.connect." + UUID.randomUUID();
    System.out.println("Topic: " + topic);
    TopicDefinition topicDefinition = new SimpleTopicDefinition(topic);
    transportProtocol.setTopicDefinition(topicDefinition);

    eventGrounding.setTransportProtocol(transportProtocol);


    return eventGrounding;
  }
}

 public DataSetModificationMessage selectGrounding() {
  // TODO grounding negotiation
  TransportProtocol protocol = new KafkaTransportProtocol(BackendConfig.INSTANCE.getKafkaHost(),
      BackendConfig.INSTANCE.getKafkaPort(),
      TopicGenerator.generateRandomTopic(),
      BackendConfig.INSTANCE.getZookeeperHost(),
      BackendConfig.INSTANCE.getZookeeperPort());
  TransportFormat format = spDataSet.getSupportedGrounding().getTransportFormats().get(0);

  EventGrounding outputGrounding = new EventGrounding();
  outputGrounding.setTransportProtocol(protocol);
  outputGrounding.setTransportFormats(Arrays.asList(format));

  return new DataSetModificationMessage(outputGrounding,RandomStringUtils.randomAlphanumeric(10));
 }
}

 public DataSetModificationMessage selectGrounding() {
  // TODO grounding negotiation
  TransportProtocol protocol = new KafkaTransportProtocol(BackendConfig.INSTANCE.getKafkaHost(),
      BackendConfig.INSTANCE.getKafkaPort(),
      TopicGenerator.generateRandomTopic(),
      BackendConfig.INSTANCE.getZookeeperHost(),
      BackendConfig.INSTANCE.getZookeeperPort());
  TransportFormat format = spDataSet.getSupportedGrounding().getTransportFormats().get(0);

  EventGrounding outputGrounding = new EventGrounding();
  outputGrounding.setTransportProtocol(protocol);
  outputGrounding.setTransportFormats(Arrays.asList(format));

  return new DataSetModificationMessage(outputGrounding,RandomStringUtils.randomAlphanumeric(10));
 }
}

ds = ((AdapterSetDescription) adapterDescription).getDataSet();
EventGrounding eg = new EventGrounding();
eg.setTransportProtocol(SupportedProtocols.kafka());
eg.setTransportFormats(Arrays.asList(SupportedFormats.jsonFormat()));
((SpDataSet) ds).setSupportedGrounding(eg);
EventGrounding eg = new EventGrounding();
eg.setTransportFormats(Arrays.asList(Formats.jsonFormat()));
eg.setTransportProtocol(tp);