Class: Dnsync::ZoneDifference

Inherits:
Object
  • Object
show all
Defined in:
lib/dnsync/zone_difference.rb

Instance Method Summary collapse

Constructor Details

#initialize(original, updated, ignored_types = nil) ⇒ ZoneDifference

Returns a new instance of ZoneDifference.



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# File 'lib/dnsync/zone_difference.rb', line 3

def initialize(original, updated, ignored_types = nil)
  @original      = original
  @updated       = updated
  @ignored_types = ignored_types || []
end

Instance Method Details

#added ⇒ Object 



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# File 'lib/dnsync/zone_difference.rb', line 9

def added
  @added ||= begin
    added_identifiers = @updated.record_identifiers - @original.record_identifiers
    added_identifiers = filter_types(added_identifiers)
    @updated.records_at(added_identifiers)
  end
end

#changed ⇒ Object 



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# File 'lib/dnsync/zone_difference.rb', line 17

def changed
  @changed ||= begin
    overlapping_identifiers = @updated.record_identifiers & @original.record_identifiers
    overlapping_identifiers = filter_types(overlapping_identifiers)
  
    overlapping_identifiers.map do |identifier|
      original_record = @original[identifier]
      updated_record  = @updated[identifier]
    
      if original_record != updated_record
        updated_record
      else
        nil
      end
    end.compact
  end
end

#filter_types(identifiers) ⇒ Object 



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# File 'lib/dnsync/zone_difference.rb', line 44

def filter_types(identifiers)
  if @ignored_types.blank?
    return identifiers
  end

  identifiers.reject { |identifier| @ignored_types.include?(identifier.type) }
end

#removed ⇒ Object 



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# File 'lib/dnsync/zone_difference.rb', line 35

def removed
  @removed ||= begin
    removed_identifiers = @original.record_identifiers - @updated.record_identifiers
    removed_identifiers = filter_types(removed_identifiers)

    @original.records_at(removed_identifiers)
  end
end