Class: Webbed::ContentNegotiator

Inherits:
Object
  • Object
show all
Defined in:
lib/webbed/content_negotiator.rb

Instance Attribute Summary (collapse)

Instance Method Summary (collapse)

Constructor Details

- (ContentNegotiator) initialize(ranges)

A new instance of ContentNegotiator



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# File 'lib/webbed/content_negotiator.rb', line 5

def initialize(ranges)
  @ranges = ranges
end

Instance Attribute Details

- ranges

Returns the value of attribute ranges



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# File 'lib/webbed/content_negotiator.rb', line 3

def ranges
  @ranges
end

Instance Method Details

- negotiate(tags) 



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# File 'lib/webbed/content_negotiator.rb', line 9

def negotiate(tags)
  return nil if tags.empty?
  
  sorted_ranges = @ranges.sort do |range0, range1|
    range1.precedence_sort_array <=> range0.precedence_sort_array
  end
  
  pairs = tags.inject([]) do |acc, tag|
    range = sorted_ranges.find { |range| range.include?(tag) }
    acc.push([tag, range]) if range && range.quality != 0
    acc
  end
  
  return nil if pairs.empty?
  
  pairs.max do |pair0, pair1|
    range0 = pair0[1]
    range1 = pair1[1]
    
    range0.quality_sort_array <=> range1.quality_sort_array
  end.first
end