Class: AwDatapipe::PipelineObject

Inherits:
Struct
  • Object
show all
Defined in:
lib/aw_datapipe/pipeline_object.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(params) ⇒ PipelineObject

Returns a new instance of PipelineObject.



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# File 'lib/aw_datapipe/pipeline_object.rb', line 11

def initialize(params)
  @id = params.delete(:id) || params[:name].underscore.to_sym ||
    raise(ArgumentError, ":id or :name required: #{params.inspect}")
  params.each_pair { |k, v| send "#{k}=", v }
end

Instance Attribute Details

#id ⇒ Object (readonly)

Returns the value of attribute id.



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# File 'lib/aw_datapipe/pipeline_object.rb', line 3

def id
  @id
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/aw_datapipe/pipeline_object.rb', line 4

def name
  @name
end

#pipeline ⇒ Object

Returns the value of attribute pipeline.



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# File 'lib/aw_datapipe/pipeline_object.rb', line 5

def pipeline
  @pipeline
end

Class Method Details

.build(params) ⇒ Object 



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# File 'lib/aw_datapipe/pipeline_object.rb', line 7

def self.build(params)
  new(params)
end

Instance Method Details

#dependencies ⇒ Object

Iterates through struct members, recursively collecting any PipelineObjects. Recursion ensures dependencies sorted before dependents.



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# File 'lib/aw_datapipe/pipeline_object.rb', line 19

def dependencies
  members.each_with_object([]) do |attr_name, depends|
    value = send(attr_name)
    value = pipeline.objects.fetch(value) if value.is_a?(Symbol)
    depends << value.dependencies << value if value.is_a?(PipelineObject)
  end.flatten
end

#inspect ⇒ Object 



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# File 'lib/aw_datapipe/pipeline_object.rb', line 27

def inspect
  "#<#{type} #{to_hash}>"
end

#source(indent_level = 1) ⇒ Object 



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# File 'lib/aw_datapipe/pipeline_object.rb', line 35

def source(indent_level = 1)
  "#{self.class.name}.build(" << [:id, :name, *members].map do |member|
    "\n" << indent(indent_level) << member_source(member)
  end.join(",") << ")"
end

#to_hash ⇒ Object 



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# File 'lib/aw_datapipe/pipeline_object.rb', line 31

def to_hash
  Hash[each_pair.select { |k, v| v != nil }].merge(id: id, name: name)
end

#type ⇒ Object 



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# File 'lib/aw_datapipe/pipeline_object.rb', line 41

def type
  self.class.name.split('::').last
end