37 lines
791 B
Ruby
37 lines
791 B
Ruby
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class Sequencer
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class Unit
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module Common
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module Provider
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class Attribute < Sequencer::Unit::Base
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def process
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return if ignore?
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state.provide(attribute, value)
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end
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private
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def attribute
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@attribute ||= provides
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end
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def provides
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provides_list = self.class.provides
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raise "Only single provide attribute possible for class #{self.class.name}" if provides_list.size != 1
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provides_list.first
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end
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def value
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@value ||= send(attribute)
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end
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def ignore?
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# don't store nil values which are default anyway
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value.nil?
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end
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end
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end
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end
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end
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end
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