Class: HTTP::Accept::MediaTypes::Map

Inherits:
Object
  • Object
show all
Defined in:
lib/http/accept/media_types.rb

Overview

Map a set of mime types to objects.

Constant Summary collapse

WILDCARD = 
"*/*".freeze

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Map

Returns a new instance of Map.



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# File 'lib/http/accept/media_types.rb', line 38

def initialize
  @media_types = {}
end

Instance Method Details

#<<(object) ⇒ Object

Add a converter to the collection. A converter can be anything that responds to #content_type.



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# File 'lib/http/accept/media_types.rb', line 68

def << object
  type, subtype = object.content_type.split('/')
  
  @media_types[WILDCARD] = object if @media_types.empty?
  @media_types["#{type}/*"] ||= object
  @media_types["#{type}/#{subtype}"] ||= object
  
  return self
end

#for(media_types) ⇒ Object

Given a list of content types (e.g. from browser_preferred_content_types), return the best converter.



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# File 'lib/http/accept/media_types.rb', line 52

def for(media_types)
  media_types.each do |media_range|
    mime_type = case media_range
      when String then media_range
      else media_range.mime_type
    end
    
    if object = @media_types[mime_type]
      return object, media_range
    end
  end
  
  return nil
end

#freeze ⇒ Object 



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# File 'lib/http/accept/media_types.rb', line 42

def freeze
  unless frozen?
    @media_types.freeze
    @media_types.each{|key,value| value.freeze}
    
    super
  end
end