Class: Elementary::Executor

Inherits:
Object
  • Object
show all
Defined in:
lib/elementary/executor.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(service, transport, future_opts = {}) ⇒ Executor

Returns a new instance of Executor.



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# File 'lib/elementary/executor.rb', line 6

def initialize(service, transport, future_opts={})
  @service = service
  @transport = transport
  @future_opts = future_opts
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_name, *params) ⇒ Object 



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# File 'lib/elementary/executor.rb', line 12

def method_missing(method_name, *params)
  rpc_method = service.rpcs[method_name.to_sym]
  # XXX: explode if rpc_method is nil

  future = Elementary::Future.new(@future_opts) do
    # This is effectively a Rack middleware stack. yay.
    #
    # Easiest to think of it like this:
    #   Statsd.new(HTTP.new(nil))
    stack = Elementary.middleware.inject(transport) do |accumulator, middleware|
      klass = middleware.first
      options = middleware.last
      klass.new(accumulator, options)
    end

    stack.call(service, rpc_method, *params)
  end

  return future.execute
end

Instance Attribute Details

#service ⇒ Object (readonly)

Returns the value of attribute service.



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# File 'lib/elementary/executor.rb', line 4

def service
  @service
end

#transport ⇒ Object (readonly)

Returns the value of attribute transport.



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# File 'lib/elementary/executor.rb', line 4

def transport
  @transport
end