\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// File Manager

File Manager

Path: /opt/chef/embedded/lib/ruby/gems/2.7.0/gems/faraday-1.0.1/lib/faraday/

Viewing File: middleware_registry.rb

# frozen_string_literal: true

require 'monitor'

module Faraday
  # Adds the ability for other modules to register and lookup
  # middleware classes.
  module MiddlewareRegistry
    # Register middleware class(es) on the current module.
    #
    # @param autoload_path [String] Middleware autoload path
    # @param mapping [Hash{
    #          Symbol => Module,
    #          Symbol => Array<Module, Symbol, String>,
    #        }] Middleware mapping from a lookup symbol to a reference to the
    #        middleware.
    #        Classes can be expressed as:
    #          - a fully qualified constant
    #          - a Symbol
    #          - a Proc that will be lazily called to return the former
    #          - an array is given, its first element is the constant or symbol,
    #            and its second is a file to `require`.
    # @return [void]
    #
    # @example Lookup by a constant
    #
    #   module Faraday
    #     class Whatever
    #       # Middleware looked up by :foo returns Faraday::Whatever::Foo.
    #       register_middleware foo: Foo
    #     end
    #   end
    #
    # @example Lookup by a symbol
    #
    #   module Faraday
    #     class Whatever
    #       # Middleware looked up by :bar returns
    #       # Faraday::Whatever.const_get(:Bar)
    #       register_middleware bar: :Bar
    #     end
    #   end
    #
    # @example Lookup by a symbol and string in an array
    #
    #   module Faraday
    #     class Whatever
    #       # Middleware looked up by :baz requires 'baz' and returns
    #       # Faraday::Whatever.const_get(:Baz)
    #       register_middleware baz: [:Baz, 'baz']
    #     end
    #   end
    #
    def register_middleware(autoload_path = nil, mapping = nil)
      if mapping.nil?
        mapping = autoload_path
        autoload_path = nil
      end
      middleware_mutex do
        @middleware_autoload_path = autoload_path if autoload_path
        (@registered_middleware ||= {}).update(mapping)
      end
    end

    # Unregister a previously registered middleware class.
    #
    # @param key [Symbol] key for the registered middleware.
    def unregister_middleware(key)
      @registered_middleware.delete(key)
    end

    # Lookup middleware class with a registered Symbol shortcut.
    #
    # @param key [Symbol] key for the registered middleware.
    # @return [Class] a middleware Class.
    # @raise [Faraday::Error] if given key is not registered
    #
    # @example
    #
    #   module Faraday
    #     class Whatever
    #       register_middleware foo: Foo
    #     end
    #   end
    #
    #   Faraday::Whatever.lookup_middleware(:foo)
    #   # => Faraday::Whatever::Foo
    #
    def lookup_middleware(key)
      load_middleware(key) ||
        raise(Faraday::Error, "#{key.inspect} is not registered on #{self}")
    end

    def middleware_mutex(&block)
      @middleware_mutex ||= Monitor.new
      @middleware_mutex.synchronize(&block)
    end

    def fetch_middleware(key)
      defined?(@registered_middleware) && @registered_middleware[key]
    end

    def load_middleware(key)
      value = fetch_middleware(key)
      case value
      when Module
        value
      when Symbol, String
        middleware_mutex do
          @registered_middleware[key] = const_get(value)
        end
      when Proc
        middleware_mutex do
          @registered_middleware[key] = value.call
        end
      when Array
        middleware_mutex do
          const, path = value
          if (root = @middleware_autoload_path)
            path = "#{root}/#{path}"
          end
          require(path)
          @registered_middleware[key] = const
        end
        load_middleware(key)
      end
    end
  end
end