RECORDACTIVITYTASKHEARTBEAT()`¶

About RecordActivityTaskHeartbeat¶

Used by activity workers to report to the service that the ActivityTask represented by the specified taskToken is still making progress. The worker can also specify details of the progress, for example percent complete, using the details parameter. This action can also be used by the worker as a mechanism to check if cancellation is being requested for the activity task. If a cancellation is being attempted for the specified task, then the boolean cancelRequested flag returned by the service is set to true.

This action resets the taskHeartbeatTimeout clock. The taskHeartbeatTimeout is specified in RegisterActivityType.

This action doesn't in itself create an event in the workflow execution history. However, if the task times out, the workflow execution history contains a ActivityTaskTimedOut event that contains the information from the last heartbeat generated by the activity worker.

The taskStartToCloseTimeout of an activity type is the maximum duration of an activity task, regardless of the number of RecordActivityTaskHeartbeat requests received. The taskStartToCloseTimeout is also specified in RegisterActivityType.

This operation is only useful for long-lived activities to report liveliness of the task and to determine if a cancellation is being attempted.

If the cancelRequested flag returns true, a cancellation is being attempted. If the worker can cancel the activity, it should respond with RespondActivityTaskCanceled. Otherwise, it should ignore the cancellation request.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

Use a Resource element with the domain name to limit the action to only specified domains.
Use an Action element to allow or deny permission to call this action.
You cannot use an IAM policy to constrain this action's parameters.

If the caller doesn't have sufficient permissions to invoke the action, or the parameter values fall outside the specified constraints, the action fails. The associated event attribute's cause parameter is set to OPERATION_NOT_PERMITTED. For details and example IAM policies, see Using IAM to Manage Access to Amazon SWF Workflows in the Amazon SWF Developer Guide.

Method Signature¶

METHODS /AWS1/IF_SWF~RECORDACTIVITYTASKHEARTBEAT
  IMPORTING
    !IV_TASKTOKEN TYPE /AWS1/SWFTASKTOKEN OPTIONAL
    !IV_DETAILS TYPE /AWS1/SWFLIMITEDDATA OPTIONAL
  RETURNING
    VALUE(OO_OUTPUT) TYPE REF TO /aws1/cl_swfactivitytaskstatus
  RAISING
    /AWS1/CX_SWFOPNOTPERMITTEDFA00
    /AWS1/CX_SWFUNKNOWNRESRCFAULT
    /AWS1/CX_SWFCLIENTEXC
    /AWS1/CX_SWFSERVEREXC
    /AWS1/CX_RT_TECHNICAL_GENERIC
    /AWS1/CX_RT_SERVICE_GENERIC.

IMPORTING¶

Required arguments:¶

`iv_tasktoken` `TYPE /AWS1/SWFTASKTOKEN` `/AWS1/SWFTASKTOKEN`¶

The taskToken of the ActivityTask.

taskToken is generated by the service and should be treated as an opaque value. If the task is passed to another process, its taskToken must also be passed. This enables it to provide its progress and respond with results.

Optional arguments:¶

`iv_details` `TYPE /AWS1/SWFLIMITEDDATA` `/AWS1/SWFLIMITEDDATA`¶

If specified, contains details about the progress of the task.

RETURNING¶

`oo_output` `TYPE REF TO /aws1/cl_swfactivitytaskstatus` `/AWS1/CL_SWFACTIVITYTASKSTATUS`¶

Domain /AWS1/RT_ACCOUNT_ID

Primitive Type NUMC

Examples¶

Syntax Example¶

This is an example of the syntax for calling the method. It includes every possible argument and initializes every possible value. The data provided is not necessarily semantically accurate (for example the value "string" may be provided for something that is intended to be an instance ID, or in some cases two arguments may be mutually exclusive). The syntax shows the ABAP syntax for creating the various data structures.

DATA(lo_result) = lo_client->recordactivitytaskheartbeat(
  iv_details = |string|
  iv_tasktoken = |string|
).

This is an example of reading all possible response values

lo_result = lo_result.
IF lo_result IS NOT INITIAL.
  lv_canceled = lo_result->get_cancelrequested( ).
ENDIF.

/AWS1/IF_SWF=>RECORDACTIVITYTASKHEARTBEAT()¶