Class: Eventr::Coordinator

Inherits:
Object
  • Object
show all
Includes:
Singleton
Defined in:
lib/eventr/coordinator.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Coordinator 



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# File 'lib/eventr/coordinator.rb', line 28

def initialize
  @publishers = {}
  @consumers  = {}
end

Instance Attribute Details

#consumers ⇒ Object (readonly)

Returns the value of attribute consumers.



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# File 'lib/eventr/coordinator.rb', line 26

def consumers
  @consumers
end

#publishers ⇒ Object (readonly)

Returns the value of attribute publishers.



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# File 'lib/eventr/coordinator.rb', line 26

def publishers
  @publishers
end

Class Method Details

.method_missing(method, *args, &block) ⇒ Object 



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# File 'lib/eventr/coordinator.rb', line 33

def self.method_missing(method, *args, &block)
  return super unless self.instance.respond_to?(method)
  instance.public_send(method, *args, &block)
end

Instance Method Details

#consumer(queue_name, &block) ⇒ Object

Raises:



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# File 'lib/eventr/coordinator.rb', line 43

def consumer(queue_name, &block)
  raise InvalidQueue, "#{queue_name} queue does not exist. Define a publisher for the queue first." unless @publishers.include? queue_name
  @consumers[queue_name] ||= []
  @consumers[queue_name] << Consumer.new(@publishers[queue_name], &block)
end

#publisher(queue_name, &block) ⇒ Object

Raises:



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# File 'lib/eventr/coordinator.rb', line 38

def publisher(queue_name, &block)
  raise InvalidQueue, "publisher already defined for queue '#{queue_name}'" if @publishers.include? queue_name
  @publishers[queue_name] = Publisher.new(&block)
end

#start ⇒ Object 



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# File 'lib/eventr/coordinator.rb', line 49

def start
  @publishers.each do |queue_name, _pubisher|
    _pubisher.start
    @consumers[queue_name].each { |c| c.start }
  end
end

#stop ⇒ Object 



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# File 'lib/eventr/coordinator.rb', line 56

def stop
  @publishers.each { |q, p| p.stop; @consumers[q].each { |c| c.stop } }
end