Class: KafkaSession

Inherits:
Object
  • Object
show all
Defined in:
lib/kafka_session.rb,
lib/kafka_session/message.rb,
lib/kafka_session/version.rb,
lib/kafka_session/producer.rb,
lib/kafka_session/mock_producer.rb,
lib/kafka_session/delivered_message.rb

Defined Under Namespace

Classes: DeliveredMessage, Message, MockProducer, Producer

Constant Summary collapse

VERSION = 
"0.5.0"

Class Attribute Summary collapse

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(id: self.class.session_id, producer: self.class.producer) ⇒ KafkaSession

Returns a new instance of KafkaSession.



47
48
49
50
 
# File 'lib/kafka_session.rb', line 47

def initialize(id: self.class.session_id, producer: self.class.producer)
  @id       = id
  @producer = producer
end

Class Attribute Details

.clock ⇒ Object 



36
37
38
 
# File 'lib/kafka_session.rb', line 36

def self.clock
  @clock ||= proc { Time.now.utc }
end

.producer ⇒ Object 



24
25
26
 
# File 'lib/kafka_session.rb', line 24

def self.producer
  @producer ||= MockProducer.new
end

Instance Attribute Details

#id ⇒ Object (readonly)

Returns the value of attribute id.



44
45
46
 
# File 'lib/kafka_session.rb', line 44

def id
  @id
end

#producer ⇒ Object

Returns the value of attribute producer.



45
46
47
 
# File 'lib/kafka_session.rb', line 45

def producer
  @producer
end

Class Method Details

.configure(options = {}) ⇒ Object 



15
16
17
18
19
20
21
22
 
# File 'lib/kafka_session.rb', line 15

def self.configure(options = {})
  producer_options = {
    name:    options.fetch(:name),
    brokers: options.fetch(:brokers)
  }

  @producer = Producer.new(producer_options)
end

.now ⇒ Object 



40
41
42
 
# File 'lib/kafka_session.rb', line 40

def self.now
  clock.call
end

.session_id ⇒ Object 



28
29
30
 
# File 'lib/kafka_session.rb', line 28

def self.session_id
  Thread.current[:kafka_session_session_id] ||= SecureRandom.uuid
end

.session_id=(session_id) ⇒ Object 



32
33
34
 
# File 'lib/kafka_session.rb', line 32

def self.session_id=(session_id)
  Thread.current[:kafka_session_session_id] = session_id
end

Instance Method Details

#publish(topic, *message_values) ⇒ Object 



52
53
54
55
56
57
58
 
# File 'lib/kafka_session.rb', line 52

def publish(topic, *message_values)
  messages = message_values.map do |message_value|
    Message.new(message_value, session_id: id).to_json
  end

  producer.publish(topic: topic, messages: messages)
end