RObject.rb

module Riak
  class RObject
    def reload_headers
      return {} if @data == "_LAZY_LOADED_"
      {}.tap do |h|
        h['If-None-Match'] = @etag if @etag.present?
        h['If-Modified-Since'] = @last_modified.httpdate if @last_modified.present?
      end
    end

    def data
      reload(:force => true) if @data == "_LAZY_LOADED_"
      @data
    end

    def initialize(bucket, key=nil, options={})
      @bucket, @key = bucket, key
      @key.gsub!(/\//,"%2f") if key
      @links, @meta = Set.new, {}
      if @key && options.delete(:lazy_load)
        response = @bucket.client.http.head([200,404], @bucket.client.prefix, @bucket.name, @key, options, {})
        if response[:code] == 200
          load(response) 
        end
      end
      yield self if block_given?
    end
  end
end