Class: NxtPipeline::Callbacks

Inherits:
Object
  • Object
show all
Defined in:
lib/nxt_pipeline/callbacks.rb

Instance Method Summary collapse

Constructor Details

#initialize(pipeline:) ⇒ Callbacks

Returns a new instance of Callbacks.



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# File 'lib/nxt_pipeline/callbacks.rb', line 3

def initialize(pipeline:)
  @registry = build_registry
  @pipeline = pipeline
end

Instance Method Details

#around(type, change_set, &execution) ⇒ Object 



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# File 'lib/nxt_pipeline/callbacks.rb', line 21

def around(type, change_set, &execution)
  around_callbacks = registry.resolve!(:around, type)
  return execution.call unless around_callbacks.any?

  callback_chain = around_callbacks.reverse.inject(execution) do |previous, callback|
    -> { callback.call(change_set, previous, pipeline) }
  end

  callback_chain.call
end

#register(path, callback) ⇒ Object 



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# File 'lib/nxt_pipeline/callbacks.rb', line 8

def register(path, callback)
  registry.resolve!(*path) << callback
end

#run(kind_of_callback, type, change_set) ⇒ Object 



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# File 'lib/nxt_pipeline/callbacks.rb', line 12

def run(kind_of_callback, type, change_set)
  callbacks = registry.resolve!(kind_of_callback, type)
  return unless callbacks.any?

  callbacks.inject(change_set) do |changes, callback|
    run_callback(callback, changes)
  end
end