Class: Kafka::Protocol::JoinGroupRequest

Inherits:
Object
  • Object
show all
Defined in:
lib/kafka/protocol/join_group_request.rb

Constant Summary collapse

PROTOCOL_TYPE = 
"consumer"

Instance Method Summary collapse

Constructor Details

#initialize(group_id:, session_timeout:, rebalance_timeout:, member_id:, topics: [], protocol_name:, user_data: nil) ⇒ JoinGroupRequest

Returns a new instance of JoinGroupRequest.



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# File 'lib/kafka/protocol/join_group_request.rb', line 10

def initialize(group_id:, session_timeout:, rebalance_timeout:, member_id:, topics: [], protocol_name:, user_data: nil)
  @group_id = group_id
  @session_timeout = session_timeout * 1000 # Kafka wants ms.
  @rebalance_timeout = rebalance_timeout * 1000 # Kafka wants ms.
  @member_id = member_id || ""
  @protocol_type = PROTOCOL_TYPE
  @group_protocols = {
    protocol_name => ConsumerGroupProtocol.new(topics: topics, user_data: user_data),
  }
end

Instance Method Details

#api_key ⇒ Object 



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# File 'lib/kafka/protocol/join_group_request.rb', line 21

def api_key
  JOIN_GROUP_API
end

#api_version ⇒ Object 



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# File 'lib/kafka/protocol/join_group_request.rb', line 25

def api_version
  1
end

#encode(encoder) ⇒ Object 



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# File 'lib/kafka/protocol/join_group_request.rb', line 33

def encode(encoder)
  encoder.write_string(@group_id)
  encoder.write_int32(@session_timeout)
  encoder.write_int32(@rebalance_timeout)
  encoder.write_string(@member_id)
  encoder.write_string(@protocol_type)

  encoder.write_array(@group_protocols) do |name, metadata|
    encoder.write_string(name)
    encoder.write_bytes(Encoder.encode_with(metadata))
  end
end

#response_class ⇒ Object 



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# File 'lib/kafka/protocol/join_group_request.rb', line 29

def response_class
  JoinGroupResponse
end