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devdocs/lib/docs/core/requester.rb

49 lines
1.1 KiB

require 'typhoeus'
module Docs
class Requester < Typhoeus::Hydra
attr_reader :request_options
def self.run(url, options = {}, &block)
requester = new(options)
requester.on_response(&block) if block
requester.request(url)
requester.run
requester
end
def initialize(options = {})
@request_options = options.extract!(:request_options)[:request_options].try(:dup) || {}
options[:max_concurrency] ||= 5
super
end
def request(url, options = {}, &block)
request = Request.new(url, request_options.merge(options))
request.on_complete(&block) if block
queue(request)
request
end
def queue(request)
request.on_complete(&method(:handle_response))
super
end
def on_response(&block)
@on_response ||= []
@on_response << block if block
@on_response
end
private
def handle_response(response)
on_response.each do |callback|
result = callback.call(response)
result.each { |url| request(url) } if result.is_a? Array
end
end
end
end