Class: FlowCore::Definition::Net

Inherits:
Object
  • Object
show all
Defined in:
lib/flow_core/definition/net.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(attributes = {}) {|_self| ... } ⇒ Net

Returns a new instance of Net.

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/flow_core/definition/net.rb', line 7

def initialize(attributes = {})
  @attributes = attributes.with_indifferent_access.except(FlowCore::Workflow::FORBIDDEN_ATTRIBUTES)
  @places = []
  @transitions = []
  @start_tag = nil
  @end_tag = nil

  yield(self)
end

Instance Attribute Details

#attributes ⇒ Object (readonly)

Returns the value of attribute attributes.



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# File 'lib/flow_core/definition/net.rb', line 5

def attributes
  @attributes
end

#end_tag ⇒ Object (readonly)

Returns the value of attribute end_tag.



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# File 'lib/flow_core/definition/net.rb', line 5

def end_tag
  @end_tag
end

#places ⇒ Object (readonly)

Returns the value of attribute places.



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# File 'lib/flow_core/definition/net.rb', line 5

def places
  @places
end

#start_tag ⇒ Object (readonly)

Returns the value of attribute start_tag.



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# File 'lib/flow_core/definition/net.rb', line 5

def start_tag
  @start_tag
end

#transitions ⇒ Object (readonly)

Returns the value of attribute transitions.



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# File 'lib/flow_core/definition/net.rb', line 5

def transitions
  @transitions
end

Instance Method Details

#add_place(tag_or_place, attributes = {}) ⇒ Object 



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# File 'lib/flow_core/definition/net.rb', line 17

def add_place(tag_or_place, attributes = {})
  entity =
    if tag_or_place.is_a? FlowCore::Definition::Place
      tag_or_place
    else
      attributes[:name] ||= tag_or_place.to_s
      FlowCore::Definition::Place.new(tag_or_place, attributes)
    end

  @places << entity unless @places.include?(entity)
  entity
end

#compile ⇒ Object 



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# File 'lib/flow_core/definition/net.rb', line 55

def compile
  {
    attributes: @attributes,
    start_tag: @start_tag,
    end_tag: @end_tag,
    places: @places.map(&:compile),
    transitions: @transitions.map(&:compile)
  }
end

#deploy! ⇒ Object 



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# File 'lib/flow_core/definition/net.rb', line 65

def deploy!
  # TODO: Simple validation

  workflow = nil
  FlowCore::ApplicationRecord.transaction do
    workflow = FlowCore::Workflow.new attributes
    workflow.save!

    # Places
    place_records = {}
    places.each do |pd|
      place_records[pd.tag] =
        workflow.places.create! pd.attributes
    end

    # Transitions
    transition_records = {}
    transitions.each do |td|
      transition_records[td.tag] =
        workflow.transitions.create! td.attributes

      if td.trigger
        transition_records[td.tag].create_trigger! td.trigger.compile
      end

      td.callbacks.each do |cb|
        transition_records[td.tag].callbacks.create! cb.compile
      end

      td.input_tags.each do |place_tag|
        workflow.arcs.in.create! transition: transition_records[td.tag],
                                 place: place_records[place_tag]
      end

      td.output_tags.each do |output|
        arc = workflow.arcs.out.create! transition: transition_records[td.tag],
                                        place: place_records[output[:tag]],
                                        fallback_arc: output[:fallback]
        output[:guards].each do |guard|
          arc.guards.create! guard.compile
        end
      end
    end
  end
  workflow&.verify!
  workflow
end

#end_place(tag, attributes = {}) ⇒ Object 



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# File 'lib/flow_core/definition/net.rb', line 39

def end_place(tag, attributes = {})
  raise "`end_place` can only call once" if @end_tag

  place = FlowCore::Definition::Place.new(tag, attributes.merge(type: FlowCore::EndPlace.to_s))
  @places << place
  @end_tag = place.tag
  place
end

#start_place(tag, attributes = {}) ⇒ Object 



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# File 'lib/flow_core/definition/net.rb', line 30

def start_place(tag, attributes = {})
  raise "`start_place` can only call once" if @start_tag

  place = FlowCore::Definition::Place.new(tag, attributes.merge(type: FlowCore::StartPlace.to_s))
  @places << place
  @start_tag = place.tag
  place
end

#transition(tag, options = {}, &block) ⇒ Object

Raises:

  • (TypeError) 


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# File 'lib/flow_core/definition/net.rb', line 48

def transition(tag, options = {}, &block)
  raise TypeError unless tag.is_a? Symbol
  raise ArgumentError if @transitions.include? tag

  @transitions << FlowCore::Definition::Transition.new(self, tag, options, &block)
end