Class: Rdkafka::Callbacks::CreateTopicHandler

Inherits:
BaseHandler
  • Object
show all
Defined in:
lib/rdkafka/callbacks/create_topic_handler.rb

Overview

Handles RD_KAFKA_EVENT_CREATETOPICS_RESULT events

Class Method Summary collapse

Class Method Details

.call(event_ptr) ⇒ void

This method returns an undefined value.

Resolves the create-topic handle from its result event

Parameters:

  • event_ptr (FFI::Pointer) —

    pointer to the event



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# File 'lib/rdkafka/callbacks/create_topic_handler.rb', line 12

def call(event_ptr)
  create_topics_result = Rdkafka::Bindings.rd_kafka_event_CreateTopics_result(event_ptr)

  # Get the number of create topic results
  pointer_to_size_t = FFI::MemoryPointer.new(:size_t)
  create_topic_result_array = Rdkafka::Bindings.rd_kafka_CreateTopics_result_topics(create_topics_result, pointer_to_size_t)
  create_topic_results = TopicResult.create_topic_results_from_array(pointer_to_size_t.read_int, create_topic_result_array)
  create_topic_handle_ptr = Rdkafka::Bindings.rd_kafka_event_opaque(event_ptr)

  if create_topic_handle = Rdkafka::Admin::CreateTopicHandle.remove(create_topic_handle_ptr.address)
    unless resolve_operation_error(event_ptr, create_topic_handle)
      create_topic_handle[:response] = create_topic_results[0].result_error
      create_topic_handle.result = Rdkafka::Admin::CreateTopicReport.new(
        create_topic_results[0].error_string,
        create_topic_results[0].result_name
      )
      create_topic_handle.broker_message = create_topic_handle.result.error_string

      create_topic_handle.unlock
    end
  end
end