Class: ConcurrentPipeline::Pipeline::Wrapper

Inherits:
Object
  • Object
show all
Defined in:
lib/concurrent_pipeline/pipeline.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(pipeline:, pool:) ⇒ Wrapper

Returns a new instance of Wrapper.



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# File 'lib/concurrent_pipeline/pipeline.rb', line 33

def initialize(pipeline:, pool:)
  @pipeline = pipeline
  @pool = pool
end

Instance Attribute Details

#pipeline ⇒ Object (readonly)

Returns the value of attribute pipeline.



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# File 'lib/concurrent_pipeline/pipeline.rb', line 32

def pipeline
  @pipeline
end

#pool ⇒ Object (readonly)

Returns the value of attribute pool.



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# File 'lib/concurrent_pipeline/pipeline.rb', line 32

def pool
  @pool
end

Instance Method Details

#changeset ⇒ Object 



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# File 'lib/concurrent_pipeline/pipeline.rb', line 135

def changeset
  pipeline.changeset
end

#create_pipeline_steps ⇒ Object 



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# File 'lib/concurrent_pipeline/pipeline.rb', line 85

def create_pipeline_steps
  sequence = (
    if pipeline.respond_to?(:steps)
      pipeline.steps
    else
      [:perform]
    end
  )

  sequence.each_with_index do |sub_seq, i|
    Array(sub_seq).each do |step_name|
      changeset.create(
        PipelineStep,
        pipeline_id: id,
        name: step_name,
        sequence: i
      )
    end
  end
end

#done? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/concurrent_pipeline/pipeline.rb', line 123

def done?
  if pipeline.respond_to?(:done?)
    pipeline.done?
  else
    !pipeline_steps.empty? && pipeline_steps.all?(&:completed_at)
  end
end

#id ⇒ Object 



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# File 'lib/concurrent_pipeline/pipeline.rb', line 38

def id
  pipeline_id = (
    if pipeline.class.target_type
      pipeline.target.id
    end
  )

  [pipeline.class.name, pipeline_id].compact.join("__")
end

#perform ⇒ Object 



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# File 'lib/concurrent_pipeline/pipeline.rb', line 48

def perform
  if pipeline_steps.empty?
    create_pipeline_steps
  else
    pipeline_steps
      .reject(&:completed_at)
      .group_by(&:sequence)
      .values
      .first
      .map { |step|
        wrapper = self
        -> () do
          begin
            wrapper.pipeline.public_send(step.name)
            wrapper.changeset.update(
              step,
              completed_at: Time.now.iso8601,
              result: :success
            )
          rescue => e
            wrapper.changeset.update(
              step,
              completed_at: Time.now.iso8601,
              result: :failure,
              error: {class: e.class, message: e.message, backtrace: e.backtrace}
            )
          end
        end
      }
    .then { pool.process(_1) }
  end
end

#pipeline_steps ⇒ Object 



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# File 'lib/concurrent_pipeline/pipeline.rb', line 106

def pipeline_steps
  @pipeline_steps ||= (
    store
      .all(PipelineStep)
      .select { _1.pipeline_id == id }
      .sort_by(&:sequence)
  )
end

#ready? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/concurrent_pipeline/pipeline.rb', line 115

def ready?
  if pipeline.respond_to?(:ready?)
    pipeline.ready?
  else
    true
  end
end

#should_perform? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/concurrent_pipeline/pipeline.rb', line 81

def should_perform?
  ready? && !done?
end

#store ⇒ Object 



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# File 'lib/concurrent_pipeline/pipeline.rb', line 131

def store
  pipeline.store
end

#stream(type, payload) ⇒ Object 



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# File 'lib/concurrent_pipeline/pipeline.rb', line 139

def stream(type, payload)
  pipeline.stream.push(type, payload)
end