Module: WaterDrop::Producer::Buffer

Included in:
WaterDrop::Producer
Defined in:
lib/waterdrop/producer/buffer.rb

Overview

Component for buffered operations

Instance Method Summary collapse

Instance Method Details

#buffer(message) ⇒ Object

Adds given message into the internal producer buffer without flushing it to Kafka

Parameters:

Raises:



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# File 'lib/waterdrop/producer/buffer.rb', line 12

def buffer(message)
  ensure_active!

  message = middleware.run(message)
  validate_message!(message)

  @monitor.instrument(
    'message.buffered',
    producer_id: id,
    message: message,
    buffer: @messages
  ) { @messages << message }
end

#buffer_many(messages) ⇒ Object

Adds given messages into the internal producer buffer without flushing them to Kafka

Parameters:

  • messages (Array<Hash>) —

    array with messages that comply with the Contracts::Message contract

Raises:



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# File 'lib/waterdrop/producer/buffer.rb', line 32

def buffer_many(messages)
  ensure_active!

  messages = middleware.run_many(messages)
  messages.each { |message| validate_message!(message) }

  @monitor.instrument(
    'messages.buffered',
    producer_id: id,
    messages: messages,
    buffer: @messages
  ) do
    messages.each { |message| @messages << message }
    messages
  end
end

#flush_async ⇒ Array<Rdkafka::Producer::DeliveryHandle>

Flushes the internal buffer to Kafka in an async way

Returns:

  • (Array<Rdkafka::Producer::DeliveryHandle>) —

    delivery handles for messages that were flushed



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# File 'lib/waterdrop/producer/buffer.rb', line 52

def flush_async
  @monitor.instrument(
    'buffer.flushed_async',
    producer_id: id,
    messages: @messages
  ) { flush(false) }
end

#flush_sync ⇒ Array<Rdkafka::Producer::DeliveryReport>

Flushes the internal buffer to Kafka in a sync way

Returns:

  • (Array<Rdkafka::Producer::DeliveryReport>) —

    delivery reports for messages that were flushed



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# File 'lib/waterdrop/producer/buffer.rb', line 63

def flush_sync
  @monitor.instrument(
    'buffer.flushed_sync',
    producer_id: id,
    messages: @messages
  ) { flush(true) }
end