Class: Foobara::CommandConnector

Inherits:
Object
  • Object
show all
Includes:
Concerns::Desugarizers
Defined in:
foobara-0.2.6/projects/command_connectors/src/authenticator.rb,
foobara-0.2.6/projects/command_connectors/src/command_connector.rb,
foobara-0.2.6/projects/command_connectors/src/authenticator_selector.rb,
foobara-0.2.6/projects/command_connectors/src/command_connector/request.rb,
foobara-0.2.6/projects/command_connectors/src/command_connector/response.rb,
foobara-0.2.6/projects/command_connectors/src/command_connector/commands/ping.rb,
foobara-0.2.6/projects/command_connectors/src/command_connector/unknown_error.rb,
foobara-0.2.6/projects/command_connectors/src/command_connector/not_found_error.rb,
foobara-0.2.6/projects/command_connectors/src/command_connector/commands/describe.rb,
foobara-0.2.6/projects/command_connectors/src/command_connector/not_allowed_error.rb,
foobara-0.2.6/projects/command_connectors/src/command_connector/no_type_found_error.rb,
foobara-0.2.6/projects/command_connectors/src/command_connector/concerns/desugarizers.rb,
foobara-0.2.6/projects/command_connectors/src/command_connector/invalid_context_error.rb,
foobara-0.2.6/projects/command_connectors/src/command_connector/unauthenticated_error.rb,
foobara-0.2.6/projects/command_connectors/src/command_connector/commands/list_commands.rb,
foobara-0.2.6/projects/command_connectors/src/command_connector/no_command_found_error.rb,
foobara-0.2.6/projects/command_connectors/src/command_connector/command_connector_error.rb,
foobara-0.2.6/projects/command_connectors/src/command_connector/commands/query_git_commit_info.rb,
foobara-0.2.6/projects/command_connectors/src/command_connector/no_command_or_type_found_error.rb

Defined Under Namespace

Modules: Commands, Concerns Classes: AlreadyConnectedError, Authenticator, AuthenticatorSelector, CommandConnectorError, InvalidContextError, NoCommandFoundError, NoCommandOrTypeFoundError, NoTypeFoundError, NotAllowedError, NotFoundError, Request, Response, UnauthenticatedError, UnexpectedSensitiveTypeInManifestError, UnknownError

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name: nil, authenticator: nil, capture_unknown_error: nil, default_serializers: nil, default_pre_commit_transformers: nil) ⇒ CommandConnector

Returns a new instance of CommandConnector.



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# File 'projects/command_connectors/src/command_connector.rb', line 122

def initialize(name: nil,
               authenticator: nil,
               capture_unknown_error: nil,
               default_serializers: nil,
               default_pre_commit_transformers: nil)
  authenticator = self.class.to_authenticator(authenticator)

  self.authenticator = authenticator
  self.command_registry = CommandRegistry.new(authenticator:)
  self.capture_unknown_error = capture_unknown_error
  self.name = name

  Util.array(default_serializers).each do |serializer|
    add_default_serializer(serializer)
  end

  Util.array(default_pre_commit_transformers).each do |pre_commit_transformer|
    add_default_pre_commit_transformer(pre_commit_transformer)
  end

  self.class.allowed_rules_to_register.each do |ruleish_args|
    command_registry.allowed_rule(*ruleish_args)
  end
end

Instance Attribute Details

#authenticator ⇒ Object

Returns the value of attribute authenticator.



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# File 'projects/command_connectors/src/command_connector.rb', line 120

def authenticator
  @authenticator
end

#capture_unknown_error ⇒ Object

Returns the value of attribute capture_unknown_error.



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# File 'projects/command_connectors/src/command_connector.rb', line 120

def capture_unknown_error
  @capture_unknown_error
end

#command_registry ⇒ Object

Returns the value of attribute command_registry.



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# File 'projects/command_connectors/src/command_connector.rb', line 120

def command_registry
  @command_registry
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'projects/command_connectors/src/command_connector.rb', line 120

def name
  @name
end

Class Method Details

.allowed_rules_to_register ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 13

def allowed_rules_to_register
  return @allowed_rules_to_register if defined?(@allowed_rules_to_register)

  @allowed_rules_to_register = if superclass == Object
                                 []
                               else
                                 superclass.allowed_rules_to_register.dup
                               end
end

.authenticator_registry ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 27

def authenticator_registry
  return @authenticator_registry if defined?(@authenticator_registry)

  @authenticator_registry = if superclass == Object
                              {}
                            else
                              superclass.authenticator_registry.dup
                            end
end

.find_builtin_command_class(command_class_name) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 9

def find_builtin_command_class(command_class_name)
  Util.find_constant_through_class_hierarchy(self, "Commands::#{command_class_name}")
end

.register_allowed_rule(*rule_args) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 23

def register_allowed_rule(*rule_args)
  allowed_rules_to_register << rule_args
end

.register_authenticator(*authenticatorish_args) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 37

def register_authenticator(*authenticatorish_args)
  authenticator = to_authenticator(*authenticatorish_args)

  unless authenticator.symbol
    # :nocov:
    raise ArgumentError, "Expected authenticator to have a symbol"
    # :nocov:
  end

  authenticator_registry[authenticator.symbol] = authenticator
end

.to_authenticator(*args) ⇒ Object

TODO: relocate to Authenticator



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# File 'projects/command_connectors/src/command_connector.rb', line 50

def to_authenticator(*args)
  symbol, object = case args.size
                   when 1
                     [nil, args.first]
                   when 2
                     args
                   else
                     # :nocov:
                     raise ArgumentError, "Expected 1 or 2 arguments, got #{args.size}"
                     # :nocov:
                   end

  case object
  when Class
    if object < Authenticator
      object.new
    else
      # :nocov:
      raise ArgumentError, "Expected a class that inherits from Authenticator"
      # :nocov:
    end
  when Authenticator, nil
    object
  when ::String
    if symbol
      # :nocov:
      raise ArgumentError, "Was not expecting a symbol and a string"
      # :nocov:
    end

    to_authenticator(object.to_sym)
  when ::Symbol
    authenticator = authenticator_registry[object]

    unless authenticator
      # :nocov:
      raise "No authenticator found for #{object}"
      # :nocov:
    end

    authenticator
  when ::Array
    case object.size
    when 0
      # TODO: test this
      # :nocov:
      nil
      # :nocov:
    when 1
      to_authenticator(object.first)
    else
      authenticators = object.map { |authenticatorish| to_authenticator(authenticatorish) }
      AuthenticatorSelector.new(authenticators:, symbol:)
    end
  else
    if object.respond_to?(:call)
      Authenticator.new(symbol:, &object)
    else
      # :nocov:
      raise "Not sure how to convert #{object} into an AllowedRule object"
      # :nocov:
    end
  end.tap do |resolved_authenticator|
    if resolved_authenticator
      resolved_authenticator.symbol ||= symbol
    end
  end
end

Instance Method Details

#all_exposed_command_names ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 679

def all_exposed_command_names
  all_exposed_commands.map(&:full_command_name)
end

#all_exposed_commands ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 673

def all_exposed_commands
  process_delayed_connections

  command_registry.foobara_all_command(mode: Namespace::LookupMode::ABSOLUTE_SINGLE_NAMESPACE)
end

#all_exposed_type_names ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 683

def all_exposed_type_names
  # TODO: cache this or better yet cache #foobara_manifest
  foobara_manifest[:type].keys.sort.map(&:to_s)
end

#build_command_instance(request) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 472

def build_command_instance(request)
  command = request_to_command_instance(request)
  request.command = command
  if command.is_a?(TransformedCommand)
    # This allows the command to access the authenticated_user
    command.request = request
  end

  command
end

#build_request ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 402

def build_request(...)
  self.class::Request.new(...).tap do |request|
    # TODO: feels like a smell
    request.command_connector = self
  end
end

#build_response(request) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 490

def build_response(request)
  response = request_to_response(request)

  set_response_status(response)
  set_response_body(response)
  mutate_response(response)
  serialize_response_body(response)

  response
end

#connect(*args, **opts) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 338

def connect(*args, **opts)
  args, opts = desugarize_connect_args(args, opts)

  registerable = args.first

  if opts.key?(:authenticator)
    authenticator = opts[:authenticator]
    authenticator = self.class.to_authenticator(authenticator)
    opts = opts.merge(authenticator:)
  end

  case registerable
  when Class
    unless registerable < Command
      # :nocov:
      raise "Don't know how to register #{registerable} (#{registerable.class})"
      # :nocov:
    end

    command_registry.register(*args, **opts)
  when Module
    if registerable.foobara_organization?
      args = args[1..]
      registerable.foobara_domains.map do |domain|
        connect(domain, *args, **opts)
      end.flatten
    elsif registerable.foobara_domain?
      args = args[1..]
      connected = []

      registerable = registerable.foobara_all_command(mode: Namespace::LookupMode::DIRECT)

      registerable.each do |command_class|
        unless command_class.abstract?
          connected << connect(command_class, *args, **opts)
        end
      end

      connected.flatten
    else
      # :nocov:
      raise "Don't know how to register #{registerable} (#{registerable.class})"
      # :nocov:
    end
  when Symbol, String
    connect_delayed(*args, **opts)
  else
    # :nocov:
    raise "Don't know how to register #{registerable} (#{registerable.class})"
    # :nocov:
  end
end

#connect_delayed(registerable_name, *args, **opts) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 308

def connect_delayed(registerable_name, *args, **opts)
  key = registerable_name.to_s

  if delayed_connections.key?(key)
    # :nocov:
    raise AlreadyConnectedError, "Already connected #{key}"
    # :nocov:
  else
    delayed_connections[key] = { args:, opts: }
  end
end

#delayed_connections ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 320

def delayed_connections
  @delayed_connections ||= {}
end

#desugarize_connect_args(args, opts) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 391

def desugarize_connect_args(args, opts)
  if self.class.desugarizer
    self.class.desugarizer.process_value!([args, opts])
  else
    # TODO: test this code path by removing all desugarizers in a spec.
    # :nocov:
    [args, opts]
    # :nocov:
  end
end

#determine_command_class(request) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 483

def determine_command_class(request)
  unless request.error
    command_class = request_to_command_class(request)
    request.command_class = command_class
  end
end

#find_builtin_command_class(command_class_name) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 147

def find_builtin_command_class(command_class_name)
  self.class.find_builtin_command_class(command_class_name)
end

#foobara_manifest ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 505

def foobara_manifest
  Namespace.use command_registry do
    foobara_manifest_in_current_namespace
  end
end

#foobara_manifest_in_current_namespace ⇒ Object

TODO: try to break this giant method up



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# File 'projects/command_connectors/src/command_connector.rb', line 512

def foobara_manifest_in_current_namespace
  process_delayed_connections

  to_include = Set.new

  to_include << command_registry.global_organization
  to_include << command_registry.global_domain

  command_registry.foobara_each_command(mode: Namespace::LookupMode::ABSOLUTE_SINGLE_NAMESPACE) do |exposed_command|
    to_include << exposed_command
  end

  included = Set.new

  additional_to_include = Set.new

  h = {
    organization: {},
    domain: {},
    type: {},
    command: {},
    error: {}
  }

  if TypeDeclarations.include_processors?
    h.merge!(
      processor: {},
      processor_class: {}
    )
  end

  TypeDeclarations.with_manifest_context(to_include: additional_to_include, remove_sensitive: true) do
    until to_include.empty? && additional_to_include.empty?
      object = nil

      if to_include.empty?
        until additional_to_include.empty?
          o = additional_to_include.first
          additional_to_include.delete(o)

          if o.is_a?(::Module)
            if o.foobara_domain? || o.foobara_organization?
              unless o.foobara_root_namespace == command_registry
                next
              end
            elsif o.is_a?(::Class) && o < Foobara::Command
              next
            end
          elsif o.is_a?(Types::Type)
            if o.sensitive?
              # :nocov:
              raise UnexpectedSensitiveTypeInManifestError,
                    "Unexpected sensitive type in manifest: #{o.scoped_full_path}. " \
                    "Make sure these are not included."
            # :nocov:
            else

              mode = Namespace::LookupMode::ABSOLUTE_SINGLE_NAMESPACE
              domain_name = o.foobara_domain.scoped_full_name

              exposed_domain = command_registry.foobara_lookup_domain(domain_name, mode:)

              exposed_domain ||= command_registry.build_and_register_exposed_domain(domain_name)

              # Since we don't know which other domains/orgs creating this domain might have created,
              # we will just add them all to be included just in case
              command_registry.foobara_all_domain(mode:).each do |exposed_domain|
                additional_to_include << exposed_domain
              end

              command_registry.foobara_all_organization(mode:).each do |exposed_organization|
                additional_to_include << exposed_organization
              end
            end
          end

          object = o
          break
        end
      else
        object = to_include.first
        to_include.delete(object)
      end

      break unless object
      next if included.include?(object)

      manifest_reference = object.foobara_manifest_reference.to_sym

      category_symbol = command_registry.foobara_category_symbol_for(object)

      unless category_symbol
        # :nocov:
        raise "no category symbol for #{object}"
        # :nocov:
      end

      namespace = if object.is_a?(Types::Type)
                    object.created_in_namespace
                  else
                    Foobara::Namespace.current
                  end

      # TODO: do we really need to enter the namespace here for this?
      h[category_symbol][manifest_reference] = Foobara::Namespace.use namespace do
        object.foobara_manifest
      end

      included << object
    end
  end

  h[:domain].each_value do |domain_manifest|
    # TODO: hack, we need to trim types down to what is actually included in this manifest
    domain_manifest[:types] = domain_manifest[:types].select do |type_name|
      h[:type].key?(type_name.to_sym)
    end
  end

  h = normalize_manifest(h)
  patch_up_broken_parents_for_errors_with_missing_command_parents(h)
end

#lookup_command(name) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 165

def lookup_command(name)
  command_registry.foobara_lookup_command(name)
end

#mutate_response(response) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 291

def mutate_response(response)
  command = response.command

  if command.respond_to?(:mutate_response)
    command.mutate_response(response)
  end
end

#normalize_manifest(manifest_hash) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 635

def normalize_manifest(manifest_hash)
  manifest_hash.map do |key, entries|
    [key, entries.sort.to_h]
  end.sort.to_h
end

#patch_up_broken_parents_for_errors_with_missing_command_parents(manifest_hash) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 641

def patch_up_broken_parents_for_errors_with_missing_command_parents(manifest_hash)
  root_manifest = Manifest::RootManifest.new(manifest_hash)

  error_category = {}

  root_manifest.errors.each do |error|
    error_manifest = if error.parent_category == :command &&
                        !root_manifest.contains?(error.parent_name, error.parent_category)
                       domain = error.domain
                       index = domain.scoped_full_path.size

                       fixed_scoped_path = error.scoped_full_path[index..]
                       fixed_scoped_name = fixed_scoped_path.join("::")
                       fixed_scoped_prefix = fixed_scoped_path[..-2]
                       fixed_parent = [:domain, domain.reference]

                       error.relevant_manifest.merge(
                         parent: fixed_parent,
                         scoped_path: fixed_scoped_path,
                         scoped_name: fixed_scoped_name,
                         scoped_prefix: fixed_scoped_prefix
                       )
                     else
                       error.relevant_manifest
                     end

    error_category[error.scoped_full_name.to_sym] = error_manifest
  end

  manifest_hash.merge(error: error_category)
end

#process_delayed_connections ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 324

def process_delayed_connections
  return if delayed_connections.empty?

  delayed_connections.each_pair do |registerable_name, arg_hash|
    args = arg_hash[:args]
    opts = arg_hash[:opts]

    const = Object.const_get(registerable_name)
    connect(const, *args, **opts)
  end

  delayed_connections.clear
end

#request_to_command_class(request) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 169

def request_to_command_class(request)
  action = request.action
  full_command_name = request.full_command_name

  if action == "run"
    transformed_command_class = transformed_command_from_name(full_command_name)

    unless transformed_command_class
      # :nocov:
      raise NoCommandFoundError.new(message: "Could not find command registered for #{full_command_name}")
      # :nocov:
    end

    transformed_command_class
  else
    action = case action
             when "describe_type", "manifest", "describe_command"
               "describe"
             when "describe", "ping", "query_git_commit_info", "help"
               action
             when "list"
               "list_commands"
             else
               # :nocov:
               raise InvalidContextError.new(message: "Not sure what to do with #{action}")
               # :nocov:
             end

    command_name = Util.classify(action)
    command_class = find_builtin_command_class(command_name)
    full_command_name = command_class.full_command_name

    transformed_command_from_name(full_command_name) || transform_command_class(command_class)
  end
end

#request_to_command_inputs(request) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 205

def request_to_command_inputs(request)
  action = request.action
  full_command_name = request.full_command_name

  case action
  when "run"
    request.inputs
  when "describe"
    manifestable = transformed_command_from_name(full_command_name) || type_from_name(full_command_name)

    unless manifestable
      # :nocov:
      raise NoCommandOrTypeFoundError.new(
        message: "Could not find command or type registered for #{full_command_name}"
      )
      # :nocov:
    end

    request.inputs.merge(manifestable:, request:)
  when "describe_command"
    transformed_command_class = transformed_command_from_name(full_command_name)

    unless transformed_command_class
      # :nocov:
      raise NoCommandFoundError.new(message: "Could not find command registered for #{full_command_name}")
      # :nocov:
    end

    request.inputs.merge(manifestable: transformed_command_class, request:)
  when "describe_type"
    type = type_from_name(full_command_name)

    unless type
      # :nocov:
      raise NoTypeFoundError.new(message: "Could not find type registered for #{full_command_name}")
      # :nocov:
    end

    request.inputs.merge(manifestable: type, request:)
  when "manifest"
    request.inputs.merge(manifestable: self, request:)
  when "ping", "query_git_commit_info"
    nil
  when "help"
    { request: }
  when "list"
    request.inputs.merge(request:)
  else
    # :nocov:
    raise InvalidContextError.new(message: "Not sure what to do with #{action}")
    # :nocov:
  end
end

#request_to_command_instance(request) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 259

def request_to_command_instance(request)
  command_class = request.command_class
  inputs = request.inputs

  if inputs && !inputs.empty?
    command_class.new(inputs)
  else
    command_class.new
  end
end

#request_to_response(request) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 276

def request_to_response(request)
  response = self.class::Response.new(request:)
  request.response = response
  response
end

#run ⇒ Object

TODO: maybe introduce a Runner interface?



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# File 'projects/command_connectors/src/command_connector.rb', line 410

def run(...)
  process_delayed_connections

  request = build_request(...)

  run_request(request)
end

#run_command(request) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 458

def run_command(request)
  command = request.command

  unless command.outcome
    command.run
  end
rescue => e
  if capture_unknown_error
    request.error = CommandConnector::UnknownError.for(e)
  else
    raise
  end
end

#run_request(request) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 418

def run_request(request)
  command_class = determine_command_class(request)
  request.command_class = command_class

  return build_response(request) unless command_class

  begin
    request.open_transaction
    request.use_transaction do
      request.authenticate
      request.mutate_request

      inputs = request_to_command_inputs(request)
      request.inputs = inputs
      command = build_command_instance(request)
      request.command = command

      unless request.error
        if command
          run_command(request)
          # :nocov:
        else
          raise "No command returned from #request_to_command"
          # :nocov:
        end
      end
    end
  ensure
    request.use_transaction do
      if (request.response || request).outcome&.success?
        request.commit_transaction_if_open
      else
        request.rollback_transaction
      end
    end
  end

  build_response(request)
end

#serialize_response_body(response) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 299

def serialize_response_body(response)
  command = response.command

  if command.respond_to?(:serialize_result)
    # TODO: Get serialization off of the command instance!!
    response.body = command.serialize_result(response.body)
  end
end

#set_response_body(response) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 286

def set_response_body(response)
  outcome = response.request.outcome
  response.body = outcome.success? ? outcome.result : outcome.error_collection
end

#set_response_status(response) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 282

def set_response_status(response)
  response.status = response.success? ? 0 : 1
end

#transform_command_class(klass) ⇒ Object

Feels like we should just register these if we’re going to make use of them via “actions”… TODO: figure out how to kill this



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# File 'projects/command_connectors/src/command_connector.rb', line 272

def transform_command_class(klass)
  command_registry.create_exposed_command_without_domain(klass).transformed_command_class
end

#type_from_name(name) ⇒ Object 



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# File 'projects/command_connectors/src/command_connector.rb', line 501

def type_from_name(name)
  Foobara.foobara_lookup_type(name, mode: Namespace::LookupMode::RELAXED)
end