Class: Pebblebed::River

Inherits:
Object
  • Object
show all
Defined in:
lib/pebblebed/river.rb,
lib/pebblebed/river/subscription.rb

Defined Under Namespace

Classes: Subscription

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(env = ) ⇒ River

Returns a new instance of River.



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# File 'lib/pebblebed/river.rb', line 19

def initialize(env = ENV['RACK_ENV'])
  @environment = env || 'development'
end

Class Method Details

.route(options) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/pebblebed/river.rb', line 9

def route(options)
  raise ArgumentError.new(':event is required') unless options[:event]
  raise ArgumentError.new(':uid is required') unless options[:uid]

  uid = Pebblebed::Uid.new(options[:uid])
  key = [options[:event], uid.klass, uid.path].compact
  key.join('._.')
end

Instance Method Details

#connect ⇒ Object 



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# File 'lib/pebblebed/river.rb', line 27

def connect
  unless connected?
    bunny.start
  end
end

#connected? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pebblebed/river.rb', line 23

def connected?
  bunny.connected?
end

#disconnect ⇒ Object 



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# File 'lib/pebblebed/river.rb', line 33

def disconnect
  bunny.stop if connected?
end

#exchange_name ⇒ Object 



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# File 'lib/pebblebed/river.rb', line 57

def exchange_name
  unless @exchange_name
    name = 'pebblebed.river'
    name << ".#{environment}" unless production?
    @exchange_name = name
  end
  @exchange_name
end

#publish(options = {}) ⇒ Object 



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# File 'lib/pebblebed/river.rb', line 37

def publish(options = {})
  connect

  persistent = options.fetch(:persistent) { true }
  key = self.class.route(options)
  exchange.publish(options.to_json, :persistent => persistent, :key => key)
end

#queue(options = {}) ⇒ Object 



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# File 'lib/pebblebed/river.rb', line 45

def queue(options = {})
  connect

  raise ArgumentError.new 'Queue must be named' unless options[:name]

  queue = channel.queue(options[:name], :durable => true)
  Subscription.new(options).queries.each do |key|
    queue.bind(exchange.name, :key => key)
  end
  queue
end