pynetdicom._handlers.doc_handle_action

pynetdicom._handlers.doc_handle_action(event: Event, *args: Sequence[Any]) → Tuple[int | Dataset, Dataset | None][source]

Documentation for handlers bound to evt.EVT_N_ACTION.

User implementation of this event handler is required if one or more services that use N-ACTION are to be supported. If a handler is not implemented and bound to evt.EVT_N_ACTION then the N-ACTION request will be responded to using a Status value of 0x0110 - Processing failure.

Event

evt.EVT_N_ACTION

Supported Service Classes

Status

Success
0x0000 - Success
Failure
0x0112 - No such SOP Instance
0x0114 - No such argument
0x0115 - Invalid argument value
0x0117 - Invalid object instance
0x0118 - No such SOP Class
0x0119 - Class-Instance conflict
0x0123 - No such action
0x0124 - Refused: not authorised
0x0210 - Duplicate invocation
0x0211 - Unrecognised operation
0x0212 - Mistyped argument
0x0213 - Resource limitation
0xC101 - Procedural Logging not available for specified Study Instance UID
0xC102 - Event Information does not match Template
0xC103 - Cannot match event to a current study
0xC104 - IDs inconsistent in matching a current study; Event not logged
0xC10E - Operator not authorised to add entry to Medication Administration Record
0xC110 - Patient cannot be identified from Patient ID (0010,0020) or Admission ID (0038,0010)
0xC111 - Update of Medication Administration Record failed
0xC112 - Machine Verification requested instance not found
0xC300 - The UPS may no longer be updated
0xC301 - The correct Transaction UID was not provided
0xC302 - The UPS is already IN PROGRESS
0xC303 - The UPS may only become SCHEDULED via N-CREATE, not N-SET or N-ACTION
0xC304 - The UPS has not met final state requirements for the requested state change
0xC307 - Specified SOP Instance UID does not exist or is not a UPS Instance managed by this SCP
0xC308 - Receiving AE-TITLE is Unknown to this SCP
0xC310 - The UPS is not yet in the IN PROGRESS state
0xC311 - The UPS is already COMPLETED
0xC312 - The performer cannot be contacted
0xC313 - Performer chooses not to cancel
0xC314 - Specified action not appropriate for specified instance
0xC315 - SCP does not support Event Reports
0xC600 - Film Session SOP Instance hierarchy does not contain Film Box SOP Instances
0xC601 - Unable to create Print Job SOP Instance; print queue is full
0xC602 - Unable to create Print Job SOP Instance; print queue is full
0xC603 - Image size is larger than image box size
0xC613 - Combined Print Image size is larger than Image Box size
Warning
0xB101 - Specified Synchronisation Frame of Reference UID does not match SOP Synchronisation Frame of Reference
0xB102 - Study Instance UID coercion; Event logged under a different Study Instance UID
0xB104 - IDs inconsistent in matching a current study; Event logged
0xB301 - Deletion Lock not granted
0xB304 - The UPS is already in the requested state of CANCELED
0xB306 - The UPS is already in the requested state of COMPLETED
0xB601 - Film session printing (collation) is not supported
0xB602 - Film Session SOP Instance hierarchy does not contain Image Box SOP Instances (empty page)
0xB603 - Film Box SOP Instance hierarchy does not contain Image Box SOP Instances (empty page)
0xB604 - Image size is larger than Image Box size, the image has been demagnified
0xB609 - Image size is larger than Image Box size, the image has been cropped to fit.
0xB60A - Image size or Combined Print Image size is larger than the Image Box size. Image or Combined Print Image has been decimated to fit.
Parameters:

  • event (events.Event) –

    The event representing a service class receiving a N-ACTION request message. Event attributes are:

    Event properties are:

    • action_information: the decoded Dataset contained within the N-ACTION request’s Action Information parameter. Because pydicom uses a deferred read when decoding data, if the decode fails the returned Dataset will only raise an exception at the time of use.

    • action_type: the N-ACTION request’s Action Type ID as int.

    • message_id: the N-ACTION request’s Message ID as int.

  • args – If the handler was bound to the event using bind(event, handler, args) or by passing evt_handlers=[(event, handler, args), ...], where args is a list then there will be one or more optional extra parameters matching the contents of args.

Returns:

  • status (pydicom.dataset.Dataset or int) – The status returned to the peer AE in the N-ACTION response. Must be a valid N-ACTION status value for the applicable Service Class as either an int or a Dataset object containing (at a minimum) a (0000,0900) Status element. If returning a Dataset object then it may also contain optional elements related to the Status (as in DICOM Standard, Part 7, Annex C).

  • dataset (pydicom.dataset.Dataset or None) – If the status category is ‘Success’ or ‘Warning’ then a Dataset containing elements for the response’s Action Reply conformant to the specifications in the corresponding Service Class.

    If the status category is not ‘Success’ or ‘Warning’ then None.

Raises:

NotImplementedError – If the handler has not been implemented and bound to evt.EVT_N_ACTION by the user.

See also

send_n_action(), N_ACTION, ApplicationEventLoggingServiceClass, MediaCreationManagementServiceClass, PrintManagementServiceClass, RTMachineVerificationServiceClass, StorageCommitmentServiceClass, UnifiedProcedureStepServiceClass

References