Class: Divisio::ModuloAlgorithm

Inherits:
Object
  • Object
show all
Defined in:
lib/divisio/modulo_algorithm.rb

Instance Method Summary collapse

Constructor Details

#initialize(key, variants) ⇒ ModuloAlgorithm

Returns a new instance of ModuloAlgorithm.



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# File 'lib/divisio/modulo_algorithm.rb', line 6

def initialize(key, variants)
  @key      = key.to_s
  @variants = variants_as_array(variants)
end

Instance Method Details

#calc ⇒ Object 



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# File 'lib/divisio/modulo_algorithm.rb', line 11

def calc
  number_of_variants = variants.size
  position           = Digest::MD5.hexdigest(key).to_i(16) % number_of_variants

  variants[position]
end