Class: Temporalio::Internal::Worker::WorkflowInstance::OutboundImplementation

Inherits:
Worker::Interceptor::Workflow::Outbound show all
Defined in:
lib/temporalio/internal/worker/workflow_instance/outbound_implementation.rb

Overview

Root implementation of the outbound interceptor.

Instance Attribute Summary

Attributes inherited from Worker::Interceptor::Workflow::Outbound

#next_interceptor

Instance Method Summary collapse

Constructor Details

#initialize(instance) ⇒ OutboundImplementation

Returns a new instance of OutboundImplementation.



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# File 'lib/temporalio/internal/worker/workflow_instance/outbound_implementation.rb', line 19

def initialize(instance)
  super(nil) # steep:ignore
  @instance = instance
  @activity_counter = 0
  @timer_counter = 0
  @child_counter = 0
  @external_signal_counter = 0
  @external_cancel_counter = 0
end

Instance Method Details

#_signal_external_workflow(id:, run_id:, child:, signal:, args:, cancellation:, headers:) ⇒ Object

Raises:



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# File 'lib/temporalio/internal/worker/workflow_instance/outbound_implementation.rb', line 209

def _signal_external_workflow(id:, run_id:, child:, signal:, args:, cancellation:, headers:)
  raise Error::CanceledError, 'Signal canceled before scheduled' if cancellation.canceled?

  # Add command
  seq = (@external_signal_counter += 1)
  cmd = Bridge::Api::WorkflowCommands::SignalExternalWorkflowExecution.new(
    seq:,
    signal_name: signal,
    args: ProtoUtils.convert_to_payload_array(@instance.payload_converter, args),
    headers: ProtoUtils.headers_to_proto_hash(headers, @instance.payload_converter)
  )
  if child
    cmd.child_workflow_id = id
  else
    cmd.workflow_execution = Bridge::Api::Common::NamespacedWorkflowExecution.new(
      namespace: @instance.info.namespace,
      workflow_id: id,
      run_id:
    )
  end
  @instance.add_command(
    Bridge::Api::WorkflowCommands::WorkflowCommand.new(signal_external_workflow_execution: cmd)
  )
  @instance.pending_external_signals[seq] = Fiber.current

  # Add a cancellation callback
  cancel_callback_key = cancellation.add_cancel_callback do
    # Add the command but do not raise, we will let resolution do that
    @instance.add_command(
      Bridge::Api::WorkflowCommands::WorkflowCommand.new(
        cancel_signal_workflow: Bridge::Api::WorkflowCommands::CancelSignalWorkflow.new(seq:)
      )
    )
  end

  # Wait
  resolution = Fiber.yield

  # Remove cancellation callback
  cancellation.remove_cancel_callback(cancel_callback_key)

  # Raise if resolution has failure
  return unless resolution.failure

  raise @instance.failure_converter.from_failure(resolution.failure, @instance.payload_converter)
end

#cancel_external_workflow(input) ⇒ Object 



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# File 'lib/temporalio/internal/worker/workflow_instance/outbound_implementation.rb', line 29

def cancel_external_workflow(input)
  # Add command
  seq = (@external_cancel_counter += 1)
  cmd = Bridge::Api::WorkflowCommands::RequestCancelExternalWorkflowExecution.new(
    seq:,
    workflow_execution: Bridge::Api::Common::NamespacedWorkflowExecution.new(
      namespace: @instance.info.namespace,
      workflow_id: input.id,
      run_id: input.run_id
    )
  )
  @instance.add_command(
    Bridge::Api::WorkflowCommands::WorkflowCommand.new(request_cancel_external_workflow_execution: cmd)
  )
  @instance.pending_external_cancels[seq] = Fiber.current

  # Wait
  resolution = Fiber.yield

  # Raise if resolution has failure
  return unless resolution.failure

  raise @instance.failure_converter.from_failure(resolution.failure, @instance.payload_converter)
end

#execute_activity(input) ⇒ Object 



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# File 'lib/temporalio/internal/worker/workflow_instance/outbound_implementation.rb', line 54

def execute_activity(input)
  if input.schedule_to_close_timeout.nil? && input.start_to_close_timeout.nil?
    raise ArgumentError, 'Activity must have schedule_to_close_timeout or start_to_close_timeout'
  end

  execute_activity_with_local_backoffs(local: false, cancellation: input.cancellation) do
    seq = (@activity_counter += 1)
    @instance.add_command(
      Bridge::Api::WorkflowCommands::WorkflowCommand.new(
        schedule_activity: Bridge::Api::WorkflowCommands::ScheduleActivity.new(
          seq:,
          activity_id: input.activity_id || seq.to_s,
          activity_type: input.activity,
          task_queue: input.task_queue,
          headers: ProtoUtils.headers_to_proto_hash(input.headers, @instance.payload_converter),
          arguments: ProtoUtils.convert_to_payload_array(@instance.payload_converter, input.args),
          schedule_to_close_timeout: ProtoUtils.seconds_to_duration(input.schedule_to_close_timeout),
          schedule_to_start_timeout: ProtoUtils.seconds_to_duration(input.schedule_to_start_timeout),
          start_to_close_timeout: ProtoUtils.seconds_to_duration(input.start_to_close_timeout),
          heartbeat_timeout: ProtoUtils.seconds_to_duration(input.heartbeat_timeout),
          retry_policy: input.retry_policy&._to_proto,
          cancellation_type: input.cancellation_type,
          do_not_eagerly_execute: input.disable_eager_execution
        ),
        user_metadata: ProtoUtils.to_user_metadata(input.summary, nil, @instance.payload_converter)
      )
    )
    seq
  end
end

#execute_activity_once(local:, cancellation:, last_local_backoff:) ⇒ Object

If this doesn’t raise, it returns success | DoBackoff



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# File 'lib/temporalio/internal/worker/workflow_instance/outbound_implementation.rb', line 136

def execute_activity_once(local:, cancellation:, last_local_backoff:, &)
  # Add to pending activities (removed by the resolver)
  seq = yield last_local_backoff
  @instance.pending_activities[seq] = Fiber.current

  # Add cancellation hook
  cancel_callback_key = cancellation.add_cancel_callback do
    # Only if the activity is present still
    if @instance.pending_activities.include?(seq)
      if local
        @instance.add_command(
          Bridge::Api::WorkflowCommands::WorkflowCommand.new(
            request_cancel_local_activity: Bridge::Api::WorkflowCommands::RequestCancelLocalActivity.new(seq:)
          )
        )
      else
        @instance.add_command(
          Bridge::Api::WorkflowCommands::WorkflowCommand.new(
            request_cancel_activity: Bridge::Api::WorkflowCommands::RequestCancelActivity.new(seq:)
          )
        )
      end
    end
  end

  # Wait
  resolution = Fiber.yield

  # Remove cancellation callback
  cancellation.remove_cancel_callback(cancel_callback_key)

  case resolution.status
  when :completed
    @instance.payload_converter.from_payload(resolution.completed.result)
  when :failed
    raise @instance.failure_converter.from_failure(resolution.failed.failure, @instance.payload_converter)
  when :cancelled
    raise @instance.failure_converter.from_failure(resolution.cancelled.failure, @instance.payload_converter)
  when :backoff
    resolution.backoff
  else
    raise "Unrecognized resolution status: #{resolution.status}"
  end
end

#execute_activity_with_local_backoffs(local:, cancellation:) ⇒ Object

Raises:



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# File 'lib/temporalio/internal/worker/workflow_instance/outbound_implementation.rb', line 115

def execute_activity_with_local_backoffs(local:, cancellation:, &)
  # We do not even want to schedule if the cancellation is already cancelled. We choose to use canceled
  # failure instead of wrapping in activity failure which is similar to what other SDKs do, with the accepted
  # tradeoff that it makes rescue more difficult (hence the presence of Error.canceled? helper).
  raise Error::CanceledError, 'Activity canceled before scheduled' if cancellation.canceled?

  # This has to be done in a loop for local activity backoff
  last_local_backoff = nil
  loop do
    result = execute_activity_once(local:, cancellation:, last_local_backoff:, &)
    return result unless result.is_a?(Bridge::Api::ActivityResult::DoBackoff)

    # @type var result: untyped
    last_local_backoff = result
    # Have to sleep the amount of the backoff, which can be canceled with the same cancellation
    # TODO(cretz): What should this cancellation raise?
    Workflow.sleep(ProtoUtils.duration_to_seconds(result.backoff_duration), cancellation:)
  end
end

#execute_local_activity(input) ⇒ Object 



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# File 'lib/temporalio/internal/worker/workflow_instance/outbound_implementation.rb', line 85

def execute_local_activity(input)
  if input.schedule_to_close_timeout.nil? && input.start_to_close_timeout.nil?
    raise ArgumentError, 'Activity must have schedule_to_close_timeout or start_to_close_timeout'
  end

  execute_activity_with_local_backoffs(local: true, cancellation: input.cancellation) do |do_backoff|
    seq = (@activity_counter += 1)
    @instance.add_command(
      Bridge::Api::WorkflowCommands::WorkflowCommand.new(
        schedule_local_activity: Bridge::Api::WorkflowCommands::ScheduleLocalActivity.new(
          seq:,
          activity_id: input.activity_id || seq.to_s,
          activity_type: input.activity,
          headers: ProtoUtils.headers_to_proto_hash(input.headers, @instance.payload_converter),
          arguments: ProtoUtils.convert_to_payload_array(@instance.payload_converter, input.args),
          schedule_to_close_timeout: ProtoUtils.seconds_to_duration(input.schedule_to_close_timeout),
          schedule_to_start_timeout: ProtoUtils.seconds_to_duration(input.schedule_to_start_timeout),
          start_to_close_timeout: ProtoUtils.seconds_to_duration(input.start_to_close_timeout),
          retry_policy: input.retry_policy&._to_proto,
          cancellation_type: input.cancellation_type,
          local_retry_threshold: ProtoUtils.seconds_to_duration(input.local_retry_threshold),
          attempt: do_backoff&.attempt || 0,
          original_schedule_time: do_backoff&.original_schedule_time
        )
      )
    )
    seq
  end
end

#initialize_continue_as_new_error(input) ⇒ Object 



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# File 'lib/temporalio/internal/worker/workflow_instance/outbound_implementation.rb', line 181

def initialize_continue_as_new_error(input)
  # Do nothing
end

#signal_child_workflow(input) ⇒ Object 



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# File 'lib/temporalio/internal/worker/workflow_instance/outbound_implementation.rb', line 185

def signal_child_workflow(input)
  _signal_external_workflow(
    id: input.id,
    run_id: nil,
    child: true,
    signal: input.signal,
    args: input.args,
    cancellation: input.cancellation,
    headers: input.headers
  )
end

#signal_external_workflow(input) ⇒ Object 



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# File 'lib/temporalio/internal/worker/workflow_instance/outbound_implementation.rb', line 197

def signal_external_workflow(input)
  _signal_external_workflow(
    id: input.id,
    run_id: input.run_id,
    child: false,
    signal: input.signal,
    args: input.args,
    cancellation: input.cancellation,
    headers: input.headers
  )
end

#sleep(input) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/temporalio/internal/worker/workflow_instance/outbound_implementation.rb', line 256

def sleep(input)
  # If already cancelled, raise as such
  if input.cancellation.canceled?
    raise Error::CanceledError,
          input.cancellation.canceled_reason || 'Timer canceled before started'
  end

  # Disallow negative durations
  raise ArgumentError, 'Sleep duration cannot be less than 0' if input.duration&.negative?

  # If the duration is infinite, just wait for cancellation
  if input.duration.nil?
    input.cancellation.wait
    raise Error::CanceledError, input.cancellation.canceled_reason || 'Timer canceled'
  end

  # If duration is zero, we make it one millisecond. It was decided a 0 duration still makes a timer to ensure
  # determinism if a timer's duration is altered from non-zero to zero or vice versa.
  duration = input.duration
  duration = 0.001 if duration.zero?

  # Add command
  seq = (@timer_counter += 1)
  @instance.add_command(
    Bridge::Api::WorkflowCommands::WorkflowCommand.new(
      start_timer: Bridge::Api::WorkflowCommands::StartTimer.new(
        seq:,
        start_to_fire_timeout: ProtoUtils.seconds_to_duration(duration)
      ),
      user_metadata: ProtoUtils.to_user_metadata(input.summary, nil, @instance.payload_converter)
    )
  )
  @instance.pending_timers[seq] = Fiber.current

  # Add a cancellation callback
  cancel_callback_key = input.cancellation.add_cancel_callback do
    # Only if the timer is still present
    fiber = @instance.pending_timers.delete(seq)
    if fiber
      # Add the command for cancel then raise
      @instance.add_command(
        Bridge::Api::WorkflowCommands::WorkflowCommand.new(
          cancel_timer: Bridge::Api::WorkflowCommands::CancelTimer.new(seq:)
        )
      )
      if fiber.alive?
        fiber.raise(Error::CanceledError.new(input.cancellation.canceled_reason || 'Timer canceled'))
      end
    end
  end

  # Wait
  Fiber.yield

  # Remove cancellation callback (only needed on success)
  input.cancellation.remove_cancel_callback(cancel_callback_key)
end

#start_child_workflow(input) ⇒ Object

Raises:



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# File 'lib/temporalio/internal/worker/workflow_instance/outbound_implementation.rb', line 314

def start_child_workflow(input)
  raise Error::CanceledError, 'Child canceled before scheduled' if input.cancellation.canceled?

  # Add the command
  seq = (@child_counter += 1)
  @instance.add_command(
    Bridge::Api::WorkflowCommands::WorkflowCommand.new(
      start_child_workflow_execution: Bridge::Api::WorkflowCommands::StartChildWorkflowExecution.new(
        seq:,
        namespace: @instance.info.namespace,
        workflow_id: input.id,
        workflow_type: input.workflow,
        task_queue: input.task_queue,
        input: ProtoUtils.convert_to_payload_array(@instance.payload_converter, input.args),
        workflow_execution_timeout: ProtoUtils.seconds_to_duration(input.execution_timeout),
        workflow_run_timeout: ProtoUtils.seconds_to_duration(input.run_timeout),
        workflow_task_timeout: ProtoUtils.seconds_to_duration(input.task_timeout),
        parent_close_policy: input.parent_close_policy,
        workflow_id_reuse_policy: input.id_reuse_policy,
        retry_policy: input.retry_policy&._to_proto,
        cron_schedule: input.cron_schedule,
        headers: ProtoUtils.headers_to_proto_hash(input.headers, @instance.payload_converter),
        memo: ProtoUtils.memo_to_proto_hash(input.memo, @instance.payload_converter),
        search_attributes: input.search_attributes&._to_proto_hash,
        cancellation_type: input.cancellation_type
      ),
      user_metadata: ProtoUtils.to_user_metadata(
        input.static_summary, input.static_details, @instance.payload_converter
      )
    )
  )

  # Set as pending start and register cancel callback
  @instance.pending_child_workflow_starts[seq] = Fiber.current
  cancel_callback_key = input.cancellation.add_cancel_callback do
    # Send cancel if in start or pending
    if @instance.pending_child_workflow_starts.include?(seq) ||
       @instance.pending_child_workflows.include?(seq)
      @instance.add_command(
        Bridge::Api::WorkflowCommands::WorkflowCommand.new(
          cancel_child_workflow_execution: Bridge::Api::WorkflowCommands::CancelChildWorkflowExecution.new(
            child_workflow_seq: seq
          )
        )
      )
    end
  end

  # Wait for start
  resolution = Fiber.yield

  case resolution.status
  when :succeeded
    # Create handle, passing along the cancel callback key, and set it as pending
    handle = ChildWorkflowHandle.new(
      id: input.id,
      first_execution_run_id: resolution.succeeded.run_id,
      instance: @instance,
      cancellation: input.cancellation,
      cancel_callback_key:
    )
    @instance.pending_child_workflows[seq] = handle
    handle
  when :failed
    # Remove cancel callback and handle failure
    input.cancellation.remove_cancel_callback(cancel_callback_key)
    if resolution.failed.cause == :START_CHILD_WORKFLOW_EXECUTION_FAILED_CAUSE_WORKFLOW_ALREADY_EXISTS
      raise Error::WorkflowAlreadyStartedError.new(
        workflow_id: resolution.failed.workflow_id,
        workflow_type: resolution.failed.workflow_type,
        run_id: nil
      )
    end
    raise "Unknown child start fail cause: #{resolution.failed.cause}"
  when :cancelled
    # Remove cancel callback and handle cancel
    input.cancellation.remove_cancel_callback(cancel_callback_key)
    raise @instance.failure_converter.from_failure(resolution.cancelled.failure, @instance.payload_converter)
  else
    raise "Unknown resolution status: #{resolution.status}"
  end
end