Module: Cloudkeeper::Entities::Convertables::Convertable

Included in:
ImageFile
Defined in:
lib/cloudkeeper/entities/convertables/convertable.rb

Constant Summary collapse

CONVERT_OUTPUT_FORMATS = 
%i[raw qcow2 vmdk vdi].freeze

Class Method Summary collapse

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *arguments, &block) ⇒ Object 



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# File 'lib/cloudkeeper/entities/convertables/convertable.rb', line 24

def method_missing(method, *arguments, &block)
  result = method.to_s.match(format_regex)
  if result && result[:format]
    return self if format.to_sym == result[:format].to_sym
    return convert result[:format]
  end

  super
end

Class Method Details

.included(base) ⇒ Object

Raises:



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# File 'lib/cloudkeeper/entities/convertables/convertable.rb', line 9

def self.included(base)
  raise Cloudkeeper::Errors::Convertables::ConvertabilityError, "#{base.inspect} cannot become a convertable" \
    unless base.method_defined?(:file) && base.method_defined?(:format)

  super
end

Instance Method Details

#convert_output_formats ⇒ Object 



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# File 'lib/cloudkeeper/entities/convertables/convertable.rb', line 16

def convert_output_formats
  CONVERT_OUTPUT_FORMATS
end

#format_regex ⇒ Object 



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# File 'lib/cloudkeeper/entities/convertables/convertable.rb', line 20

def format_regex
  /^to_(?<format>#{convert_output_formats.join('|')})$/
end

#respond_to_missing?(method) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cloudkeeper/entities/convertables/convertable.rb', line 34

def respond_to_missing?(method, *)
  method =~ format_regex || super
end