Class: Kafka::Producer

Inherits:
Object
  • Object
show all
Extended by:
Gem::Deprecate
Defined in:
lib/jruby-kafka/producer.rb

Overview

noinspection JRubyStringImportInspection

Constant Summary collapse

KAFKA_PRODUCER = 
Java::kafka.javaapi.producer.Producer
REQUIRED = 
[
  :metadata_broker_list
]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(opts = {}) ⇒ Producer

Create a Kafka Producer

options: metadata_broker_list: [“localhost:9092”] - REQUIRED: a seed list of kafka brokers



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# File 'lib/jruby-kafka/producer.rb', line 23

def initialize(opts = {})
  @options = opts
  if options[:broker_list]
    options[:metadata_broker_list] = options.delete :broker_list
  end
  if options[:metadata_broker_list].is_a? Array
    options[:metadata_broker_list] = options[:metadata_broker_list].join(',')
  end
  if options[:compressed_topics].is_a? Array
    options[:compressed_topics] = options[:compressed_topics].join(',')
  end
  Kafka::Utility.validate_arguments REQUIRED, options
  @send_method = proc { throw StandardError.new 'Producer is not connected' }
end

Instance Attribute Details

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/jruby-kafka/producer.rb', line 17

def options
  @options
end

#producer ⇒ Object (readonly)

Returns the value of attribute producer.



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# File 'lib/jruby-kafka/producer.rb', line 17

def producer
  @producer
end

#send_method ⇒ Object (readonly)

Returns the value of attribute send_method.



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# File 'lib/jruby-kafka/producer.rb', line 17

def send_method
  @send_method
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/jruby-kafka/producer.rb', line 53

def close
  @producer.close
end

#connect ⇒ Object 



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# File 'lib/jruby-kafka/producer.rb', line 38

def connect
  @producer = KAFKA_PRODUCER.new(ProducerConfig.new Kafka::Utility.java_properties @options)
  @send_method = producer.java_method :send, [KeyedMessage]
end

#send_msg(topic, key, msg) ⇒ Object

throws FailedToSendMessageException or if not connected, StandardError.



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# File 'lib/jruby-kafka/producer.rb', line 44

def send_msg(topic, key, msg)
  send_method.call(KeyedMessage.new(topic, key, msg))
end

#sendMsg(topic, key, msg) ⇒ Object 



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# File 'lib/jruby-kafka/producer.rb', line 48

def sendMsg(topic, key, msg)
  send_msg(topic, key, msg)
end