Class: Faraday::Adapter::EMSynchrony

Inherits:
Faraday::Adapter show all
Includes:
Faraday::Adapter::EMHttp::Options
Defined in:
lib/faraday/adapter/em_synchrony.rb,
lib/faraday/adapter/em_synchrony/parallel_manager.rb

Defined Under Namespace

Classes: ParallelManager

Constant Summary

Constants inherited from Faraday::Adapter

CONTENT_LENGTH

Instance Attribute Summary

Attributes included from Parallelism

#supports_parallel

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Faraday::Adapter::EMHttp::Options

#configure_compression, #configure_proxy, #configure_socket, #configure_ssl, #configure_timeout, #connection_config, #read_body, #request_config, #request_options

Methods inherited from Faraday::Adapter

#save_response

Methods included from Faraday::AutoloadHelper

#all_loaded_constants, #autoload_all, #load_autoloaded_constants

Methods included from Parallelism

#inherited, #supports_parallel?

Methods inherited from Middleware

dependency, inherited, #initialize, loaded?, new

Methods included from MiddlewareRegistry

#fetch_middleware, #load_middleware, #lookup_middleware, #middleware_mutex, #register_middleware

Constructor Details

This class inherits a constructor from Faraday::Middleware

Class Method Details

.setup_parallel_manager(options = {}) ⇒ Object


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# File 'lib/faraday/adapter/em_synchrony.rb', line 16

def self.setup_parallel_manager(options = {})
  ParallelManager.new
end

Instance Method Details

#call(env) ⇒ Object


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# File 'lib/faraday/adapter/em_synchrony.rb', line 20

def call(env)
  super
  request = EventMachine::HttpRequest.new(Utils::URI(env[:url].to_s), connection_config(env))

  http_method = env[:method].to_s.downcase.to_sym

  # Queue requests for parallel execution.
  if env[:parallel_manager]
    env[:parallel_manager].add(request, http_method, request_config(env)) do |resp|
      save_response(env, resp.response_header.status, resp.response) do |resp_headers|
        resp.response_header.each do |name, value|
          resp_headers[name.to_sym] = value
        end
      end

      # Finalize the response object with values from `env`.
      env[:response].finish(env)
    end

  # Execute single request.
  else
    client = nil
    block = lambda { request.send(http_method, request_config(env)) }

    if !EM.reactor_running?
      EM.run do
        Fiber.new {
          client = block.call
          EM.stop
        }.resume
      end
    else
      client = block.call
    end

    raise client.error if client.error

    save_response(env, client.response_header.status, client.response) do |resp_headers|
      client.response_header.each do |name, value|
        resp_headers[name.to_sym] = value
      end
    end
  end

  @app.call env
rescue Errno::ECONNREFUSED
  raise Error::ConnectionFailed, $!
rescue EventMachine::Connectify::CONNECTError => err
  if err.message.include?("Proxy Authentication Required")
    raise Error::ConnectionFailed, %{407 "Proxy Authentication Required "}
  else
    raise Error::ConnectionFailed, err
  end
rescue Errno::ETIMEDOUT => err
  raise Error::TimeoutError, err
rescue RuntimeError => err
  if err.message == "connection closed by server"
    raise Error::ConnectionFailed, err
  else
    raise
  end
rescue => err
  if defined?(OpenSSL) && OpenSSL::SSL::SSLError === err
    raise Faraday::SSLError, err
  else
    raise
  end
end