pynetdicom._handlers.doc_handle_event_report

pynetdicom._handlers.doc_handle_event_report(event)

Documentation for handlers bound to evt.EVT_N_EVENT_REPORT.

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

Event

evt.EVT_N_EVENT_REPORT

Supported Service Classes

  • Modality Performed Procedure Step Management

Status

Success
0x0000 - Success
Failure
0x0110 - Processing failure
0x0112 - No such SOP Instance
0x0113 - No such event type
0x0114 - No such argument
0x0115 - Invalid argument value
0x0117 - Invalid object Instance
0x0118 - No such SOP Class
0x0119 - Class-Instance conflict
0x0210 - Duplicate invocation
0x0211 - Unrecognised operation
0x0212 - Mistyped argument
0x0213 - Resource limitation
Parameters:event (events.Event) –

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

  • assoc : the association that is running the service that received the N-EVENT-REPORT request.
  • context : the presentation context the request was sent under as a presentation.PresentationContextTuple.
  • event : the event that occurred as namedtuple.
  • event_type : the N-EVENT-REPORT request’s Event Type ID parameter value as int.
  • request : the received N-EVENT-REPORT request
  • timestamp : the date and time that the N-EVENT-REPORT request was processed by the service.

Event properties are:

  • event_information : the decoded Dataset contained within the N-EVENT-REPORT request’s Event 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.
Returns:
  • status (pydicom.dataset.Dataset or int) – The status returned to the peer AE in the N-EVENT-REPORT response. Must be a valid N-EVENT-REPORT 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 of the response’s Event 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_EVENT_REPORT by the user.

References

DICOM Standard Part 4, Annexes F, H, J, CC and DD