Class: FunctionalLightService::Organizer::WithReducer

Inherits:
Object
  • Object
show all
Defined in:
lib/functional-light-service/organizer/with_reducer.rb

Constant Summary collapse

NOOP_AROUND_EACH_HANDLER =

Handler di default condiviso: prima veniva creata una classe anonima per ogni WithReducer senza around_each

->(_context, &block) { block.call }

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(monitored_organizer = nil) ⇒ WithReducer

Returns a new instance of WithReducer.



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# File 'lib/functional-light-service/organizer/with_reducer.rb', line 9

def initialize(monitored_organizer = nil)
  @organizer = monitored_organizer
end

Instance Attribute Details

#context ⇒ Object (readonly)

Returns the value of attribute context.



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# File 'lib/functional-light-service/organizer/with_reducer.rb', line 6

def context
  @context
end

#organizer ⇒ Object

Returns the value of attribute organizer.



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# File 'lib/functional-light-service/organizer/with_reducer.rb', line 7

def organizer
  @organizer
end

Instance Method Details

#around_each(handler) ⇒ Object 



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# File 'lib/functional-light-service/organizer/with_reducer.rb', line 23

def around_each(handler)
  @around_each_handler = handler
  self
end

#around_each_handler ⇒ Object 



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# File 'lib/functional-light-service/organizer/with_reducer.rb', line 28

def around_each_handler
  @around_each_handler || NOOP_AROUND_EACH_HANDLER
end

#reduce(*actions) ⇒ Object 



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# File 'lib/functional-light-service/organizer/with_reducer.rb', line 32

def reduce(*actions)
  raise "No action(s) were provided" if actions.empty?

  actions.flatten!

  actions.each_with_index.with_object(context) do |(action, index), current_context|
    invoke_action(current_context, action)
  rescue FailWithRollbackError
    reduce_rollback(actions, index)
  ensure
    # For logging
    yield(current_context, action) if block_given?
  end
end

#reduce_rollback(actions, index_of_failed_action = nil) ⇒ Object 



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# File 'lib/functional-light-service/organizer/with_reducer.rb', line 47

def reduce_rollback(actions, index_of_failed_action = nil)
  reversable_actions(actions, index_of_failed_action)
    .reverse
    .reduce(context) do |context, action|
      if action.respond_to?(:rollback)
        action.rollback(context)
      else
        context
      end
    end
end

#with(data = {}) ⇒ Object 



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# File 'lib/functional-light-service/organizer/with_reducer.rb', line 13

def with(data = {})
  @context = FunctionalLightService::Context.make(data)
  @context.organized_by = organizer
  self
end