Class: Trinity::Handler::Acceptor

Inherits:
Trinity::Handler show all
Defined in:
lib/trinity/handler/acceptor.rb

Overview

Determine if a resource was requested with a specific file format (e.g. http://resource/uri.xml or http://resource/uri.json) and rewrite the subject to be the specified URI minus the mime type and set the appropriate HTTP_ACCEPT header. Used later for rendering.

Instance Method Summary

Methods inherited from Trinity::Handler

#initialize, #not_found, #query, #redirect

Constructor Details

This class inherits a constructor from Trinity::Handler

Instance Method Details

- (Object) call(env) 



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# File 'lib/trinity/handler/acceptor.rb', line 9

def call(env)
  if query([env['trinity.subject']]).empty?
    subject = env['trinity.subject'].to_s
    if extension = File.extname(subject)
      types   = MIME::Types.type_for(File.basename(subject))
      subject = subject[0...-extension.size]
      unless query([RDF::URI.new(subject)]).empty? || types.empty?
        env['trinity.subject'] = RDF::URI.new(subject)
        env['HTTP_ACCEPT']     = env['HTTP_ACCEPT'].split(',').unshift(types.first.to_s).join(',')
      end
    end
  end
  super
end