pynetdicom.dimse.DIMSEServiceProvider¶

class pynetdicom.dimse.DIMSEServiceProvider(dul, dimse_timeout=None, maximum_pdu_size=16382)[source][source]¶

The DIMSE service provider.

A DICOM AE uses the services provided by the DICOM Message Service Element (DIMSE). DIMSE specifies two sets of services.

DIMSE-C supports operations associated with composite SOP Classes and provides effective compatibility with the previous versions of the DICOM standards.
DIMSE-N supports operations associated with normalised SOP Classes and provides an extended set of object-orientated operations and notifications

Service Overview

The DIMSE service provider supports communication between peer DIMSE service users. A service user acts in one of two roles:

invoking DIMSE user
performing DIMSE user

Service users make use of service primitives provided by the DIMSE service provider. A service primitive shall be one of the following types:

request primitive
indication primitive
response primitive
confirmation primitive

These primitives are used as follows:

The invoking service user issues a request primitive to the DIMSE provider
The DIMSE provider receives the request primitive and issues an indication primitive to the performing service user
The performing service user receives the indication primitive and performs the requested service
The performing service user issues a response primitive to the DIMSE provider
The DIMSE provider receives the response primitive and issues a confirmation primitive to the invoking service user
The invoking service user receives the confirmation primitive, completing the DIMSE service.

Service Primitive Classes

DIMSE-C: C_ECHO, C_STORE, C_GET, C_FIND, C_MOVE
DIMSE-N: N_EVENT_REPORT, N_GET, N_GET, N_ACTION, N_CREATE, N_DELETE

Protocol Machine

PS3.7 8.1 The DIMSE protocol machine defines the procedures and the encoding rules necessary to construct Messages used to exchange command requests and responses between peer DIMSE service users.

The DIMSE protocol machine accepts service user requests and response service primitives and constructs Messages defined by the procedures in PS3.7 9.3 and 10.3. The DIMSE protocol machine accepts Messages and passes them to the DIMSE service user by the means of indication and confirmation service primitives.

Messages

Primitive	Type	Message Class
C-CANCEL	Request/indication	C_CANCEL_R
C-ECHO	Request/indication	C_ECHO_RQ
C-ECHO	Response/confirmation	C_ECHO_RSP
C-FIND	Request/indication	C_FIND_RQ
C-FIND	Response/confirmation	C_FIND_RSP
C-GET	Request/indication	C_GET_RQ
C-GET	Response/confirmation	C_GET_RSP
C-MOVE	Request/indication	C_MOVE_RQ
C-MOVE	Response/confirmation	C_MOVE_RSP
C-STORE	Request/indication	C_STORE_RQ
C-STORE	Response/confirmation	C_STORE_RSP
N-ACTION	Request/indication	N_ACTION_RQ
N-ACTION	Response/confirmation	N_ACTION_RSP
N-CREATE	Request/indication	N_CREATE_RQ
N-CREATE	Response/confirmation	N_CREATE_RSP
N-DELETE	Request/indication	N_DELETE_RQ
N-DELETE	Response/confirmation	N_DELETE_RSP
N-EVENT-REPORT	Request/indication	N_EVENT_REPORT_RQ
N-EVENT-REPORT	Response/confirmation	N_EVENT_REPORT_RSP
N-GET	Request/indication	N_GET_RQ
N-GET	Response/confirmation	N_GET_RSP
N-SET	Request/indication	N_SET_RQ
N-SET	Response/confirmation	N_SET_RSP

cancel_rq¶

A dict of {MessageIDBeingRespondedTo : C_CANCEL} messages received. The dict is cleared out at the start and end of Service Class operations and is limited to a maximum of 10 messages.

Type:	dict

dimse_timeout¶

The number of seconds before the DIMSE service timeout. A value of None indicates no timeout.

Type:	numeric or None

dul¶

The DICOM Upper Layer service provider.

Type:	dul.DULServiceProvider

maximum_pdu_size¶

The maximum PDU size when sending DIMSE messages.

Type:	int

message¶

The DIMSE message.

Type:	dimse_messages.DIMSEMessage

msg_queue¶

A queue holding decoded DIMSE Message primitives received from the peer, except for C-CANCEL requests.

Type:	queue.queue of dimse_messages.DIMSEMessage

References

DICOM Standard, Part 7

__init__(dul, dimse_timeout=None, maximum_pdu_size=16382)[source][source]¶

Start the DIMSE service provider.

Parameters:	dul (dul.DULServiceProvider) – The DICOM Upper Layer service provider. dimse_timeout (int or float or None) – The number of seconds before the DIMSE service timeout. A value of None indicates no timeout. maximum_pdu_size (int) – The maximum PDU size when sending DIMSE messages, default 16382.

Methods

`__init__`(dul[, dimse_timeout, maximum_pdu_size])	Start the DIMSE service provider.
`debug_receive_c_cancel_rq`(msg)	Debugging function when a C-CANCEL-RQ is received.
`debug_receive_c_echo_rq`(msg)	Debugging function when a C-ECHO-RQ is received.
`debug_receive_c_echo_rsp`(msg)	Debugging function when a C-ECHO-RSP is received.
`debug_receive_c_find_rq`(msg)	Debugging function when a C-FIND-RQ is received.
`debug_receive_c_find_rsp`(msg)	Debugging function when a C-FIND-RSP is received.
`debug_receive_c_get_rq`(msg)	Debugging function when a C-GET-RQ is received.
`debug_receive_c_get_rsp`(msg)	Debugging function when a C-GET-RSP is received.
`debug_receive_c_move_rq`(msg)	Debugging function when a C-MOVE-RQ is received.
`debug_receive_c_move_rsp`(msg)	Debugging function when a C-MOVE-RSP is received.
`debug_receive_c_store_rq`(msg)	Debugging function when a C-STORE-RQ is received.
`debug_receive_c_store_rsp`(msg)	Debugging function when a C-STORE-RSP is received.
`debug_receive_n_action_rq`(msg)	Debugging function when an N-ACTION-RQ is received.
`debug_receive_n_action_rsp`(msg)	Debugging function when an N-ACTION-RSP is received.
`debug_receive_n_create_rq`(msg)	Debugging function when an N-CREATE-RQ is received.
`debug_receive_n_create_rsp`(msg)	Debugging function when an N-CREATE-RSP is received.
`debug_receive_n_delete_rq`(msg)	Debugging function when an N-DELETE-RQ is received.
`debug_receive_n_delete_rsp`(msg)	Debugging function when an N-DELETE-RSP is received.
`debug_receive_n_event_report_rq`(msg)	Debugging function when an N-EVENT-REPORT-RQ is received.
`debug_receive_n_event_report_rsp`(msg)	Debugging function when an N-EVENT-REPORT-RSP is received.
`debug_receive_n_get_rq`(msg)	Debugging function when an N-GET-RQ is received.
`debug_receive_n_get_rsp`(msg)	Debugging function when an N-GET-RSP is received.
`debug_receive_n_set_rq`(msg)	Debugging function when an N-SET-RQ is received.
`debug_receive_n_set_rsp`(msg)	Debugging function when an N-SET-RSP is received.
`debug_send_c_cancel_rq`(msg)	Debugging function when a C-CANCEL-RQ is sent.
`debug_send_c_echo_rq`(msg)	Debugging function when a C-ECHO-RQ is sent.
`debug_send_c_echo_rsp`(msg)	Debugging function when a C-ECHO-RSP is sent.
`debug_send_c_find_rq`(msg)	Debugging function when a C-FIND-RQ is sent.
`debug_send_c_find_rsp`(msg)	Debugging function when a C-FIND-RSP is sent.
`debug_send_c_get_rq`(msg)	Debugging function when a C-GET-RQ is sent.
`debug_send_c_get_rsp`(msg)	Debugging function when a C-GET-RSP is sent.
`debug_send_c_move_rq`(msg)	Debugging function when a C-MOVE-RQ is sent.
`debug_send_c_move_rsp`(msg)	Debugging function when a C-MOVE-RSP is sent.
`debug_send_c_store_rq`(msg)	Debugging function when a C-STORE-RQ is sent.
`debug_send_c_store_rsp`(msg)	Debugging function when a C-STORE-RSP is sent.
`debug_send_n_action_rq`(msg)	Debugging function when an N-ACTION-RQ is sent.
`debug_send_n_action_rsp`(msg)	Debugging function when an N-ACTION-RSP is sent.
`debug_send_n_create_rq`(msg)	Debugging function when an N-CREATE-RQ is sent.
`debug_send_n_create_rsp`(msg)	Debugging function when an N-CREATE-RSP is sent.
`debug_send_n_delete_rq`(msg)	Debugging function when an N-DELETE-RQ is sent.
`debug_send_n_delete_rsp`(msg)	Debugging function when an N-DELETE-RSP is sent.
`debug_send_n_event_report_rq`(msg)	Debugging function when an N-EVENT-REPORT-RQ is sent.
`debug_send_n_event_report_rsp`(msg)	Debugging function when an N-EVENT-REPORT-RSP is sent.
`debug_send_n_get_rq`(msg)	Debugging function when an N-GET-RQ is sent.
`debug_send_n_get_rsp`(msg)	Debugging function when an N-GET-RSP is sent.
`debug_send_n_set_rq`(msg)	Debugging function when an N-SET-RQ is sent.
`debug_send_n_set_rsp`(msg)	Debugging function when an N-SET-RSP is sent.
`get_msg`([block])	Get the next available DIMSE message.
`on_receive_dimse_message`(message)	Controls which debugging function is called when receiving.
`on_send_dimse_message`(message)	Controls which debugging function is called when sending.
`peek_msg`()	Return the first message in the message queue or None.
`receive_primitive`(primitive)	Process a P-DATA primitive received from the remote.
`send_msg`(primitive, context_id)	Send a DIMSE-C or DIMSE-N message to the peer AE.

static debug_receive_c_cancel_rq(msg)[source][source]¶

Debugging function when a C-CANCEL-RQ is received.

Covers C-CANCEL-FIND-RQ, C-CANCEL-GET-RQ and C-CANCEL-MOVE-RQ

Parameters:	msg (dimse_messagesC_CANCEL_RQ) – The received C-CANCEL-RQ message.

static debug_receive_c_echo_rq(msg)[source][source]¶

Debugging function when a C-ECHO-RQ is received.

C-ECHO Request Parameters

(M) Message ID

(M) Affected SOP Class UID

Parameters:	msg (dimse_messagesC_ECHO_RQ) – The received C-ECHO-RQ message.

static debug_receive_c_echo_rsp(msg)[source][source]¶

Debugging function when a C-ECHO-RSP is received.

C-ECHO Response Parameters

(U) Message ID
(M) Message ID Being Responded To
(U) Affected SOP Class UID
(M) Status

Parameters:	msg (dimse_messages.C_ECHO_RSP) – The received C-ECHO-RSP message.

static debug_receive_c_find_rq(msg)[source][source]¶

Debugging function when a C-FIND-RQ is received.

C-FIND Request Parameters

(M) Message ID
(M) Affected SOP Class UID
(M) Priority
(M) Identifier

Parameters:	msg (dimse_messagesC_FIND_RQ) – The received C-FIND-RQ message.

static debug_receive_c_find_rsp(msg)[source][source]¶

Debugging function when a C-FIND-RSP is received.

C-FIND Response Parameters

(U) Message ID
(M) Message ID Being Responded To
(U) Affected SOP Class UID
(C) Identifier
(M) Status

Parameters:	msg (dimse_messages.C_FIND_RSP) – The received C-FIND-RSP message.

static debug_receive_c_get_rq(msg)[source][source]¶

Debugging function when a C-GET-RQ is received.

C-GET Request Parameters

(M) Message ID
(M) Affected SOP Class UID
(M) Priority
(M) Identifier

Parameters:	msg (dimse_messagesC_GET_RQ) – The received C-GET-RQ message.

static debug_receive_c_get_rsp(msg)[source][source]¶

Debugging function when a C-GET-RSP is received.

C-GET Response Parameters

(U) Message ID
(M) Message ID Being Responded To
(U) Affected SOP Class UID
(U) Identifier
(M) Status
(C) Number of Remaining Sub-operations
(C) Number of Completed Sub-operations
(C) Number of Failed Sub-operations
(C) Number of Warning Sub-operations

Parameters:	msg (dimse_messagesC_GET_RSP) – The received C-GET-RSP message.

static debug_receive_c_move_rq(msg)[source][source]¶

Debugging function when a C-MOVE-RQ is received.

C-MOVE Request Parameters

(M) Message ID
(M) Affected SOP Class UID
(M) Priority
(M) Move Destination
(M) Identifier

Parameters:	msg (dimse_messagesC_MOVE_RQ) – The received C-MOVE-RQ message.

static debug_receive_c_move_rsp(msg)[source][source]¶

Debugging function when a C-MOVE-RSP is received.

C-MOVE Response Parameters

(U) Message ID
(M) Message ID Being Responded To
(U) Affected SOP Class UID
(U) Identifier
(M) Status
(C) Number of Remaining Sub-operations
(C) Number of Completed Sub-operations
(C) Number of Failed Sub-operations
(C) Number of Warning Sub-operations

Parameters:	msg (dimse_messagesC_MOVE_RSP) – The received C-MOVE-RSP message.

static debug_receive_c_store_rq(msg)[source][source]¶

Debugging function when a C-STORE-RQ is received.

C-STORE Request Elements

(M) Message ID
(M) Affected SOP Class UID
(M) Affected SOP Instance UID
(M) Priority
(U) Move Originator Application Entity Title
(U) Move Originator Message ID
(M) Data Set

Parameters:	msg (dimse_messagesC_STORE_RQ) – The received C-STORE-RQ message.

static debug_receive_c_store_rsp(msg)[source][source]¶

Debugging function when a C-STORE-RSP is received.

C-STORE Response Elements

(U) Message ID
(M) Message ID Being Responded To
(U) Affected SOP Class UID
(U) Affected SOP Instance UID
(M) Status

Parameters:	msg (dimse_messagesC_STORE_RSP) – The received C-STORE-RSP message.

static debug_receive_n_action_rq(msg)[source][source]¶

Debugging function when an N-ACTION-RQ is received.

Parameters:	msg (dimse_messages.N_ACTION_RQ) – The received N-ACTION-RQ message.

static debug_receive_n_action_rsp(msg)[source][source]¶

Debugging function when an N-ACTION-RSP is received.

Parameters:	msg (dimse_messages.N_ACTION_RSP) – The received N-ACTION-RSP message.

static debug_receive_n_create_rq(msg)[source][source]¶

Debugging function when an N-CREATE-RQ is received.

Parameters:	msg (dimse_messages.N_CREATE_RQ) – The received N-CREATE-RQ message.

static debug_receive_n_create_rsp(msg)[source][source]¶

Debugging function when an N-CREATE-RSP is received.

Parameters:	msg (dimse_messages.N_CREATE_RSP) – The received N-CREATE-RSP message.

static debug_receive_n_delete_rq(msg)[source][source]¶

Debugging function when an N-DELETE-RQ is received.

Parameters:	msg (dimse_messages.N_DELETE_RQ) – The received N-DELETE-RQ message.

static debug_receive_n_delete_rsp(msg)[source][source]¶

Debugging function when an N-DELETE-RSP is received.

Parameters:	msg (dimse_messages.N_DELETE_RSP) – The received N-DELETE-RSP message.

static debug_receive_n_event_report_rq(msg)[source][source]¶

Debugging function when an N-EVENT-REPORT-RQ is received.

Parameters:	msg (dimse_messages.N_EVENT_REPORT_RQ) – The received N-EVENT-REPORT-RQ message.

static debug_receive_n_event_report_rsp(msg)[source][source]¶

Debugging function when an N-EVENT-REPORT-RSP is received.

Parameters:	msg (dimse_messages.N_EVENT_REPORT_RSP) – The received N-EVENT-REPORT-RSP message.

static debug_receive_n_get_rq(msg)[source][source]¶

Debugging function when an N-GET-RQ is received.

Parameters:	msg (dimse_messages.N_GET_RQ) – The received N-GET-RQ message.

static debug_receive_n_get_rsp(msg)[source][source]¶

Debugging function when an N-GET-RSP is received.

Parameters:	msg (dimse_messages.N_GET_RSP) – The received N-GET-RSP message.

static debug_receive_n_set_rq(msg)[source][source]¶

Debugging function when an N-SET-RQ is received.

Parameters:	msg (dimse_messages.N_SET_RQ) – The received N-SET-RQ message.

static debug_receive_n_set_rsp(msg)[source][source]¶

Debugging function when an N-SET-RSP is received.

Parameters:	msg (dimse_messages.N_SET_RSP) – The received N-SET-RSP message.

static debug_send_c_cancel_rq(msg)[source][source]¶

Debugging function when a C-CANCEL-RQ is sent.

Covers C-CANCEL-FIND-RQ, C-CANCEL-GET-RQ and C-CANCEL-MOVE-RQ.

Parameters:	msg (dimse_messages.C_CANCEL_RQ) – The C-CANCEL-RQ message to be sent.

static debug_send_c_echo_rq(msg)[source][source]¶

Debugging function when a C-ECHO-RQ is sent.

C-ECHO Request Parameters

(M) Message ID

(M) Affected SOP Class UID

Parameters:	msg (dimse_messages.C_ECHO_RQ) – The C-ECHO-RQ message to be sent.

static debug_send_c_echo_rsp(msg)[source][source]¶

Debugging function when a C-ECHO-RSP is sent.

C-ECHO Response Parameters

(U) Message ID
(M) Message ID Being Responded To
(U) Affected SOP Class UID
(M) Status

Parameters:	msg (dimse_messages.C_ECHO_RSP) – The C-ECHO-RSP message to be sent.

static debug_send_c_find_rq(msg)[source][source]¶

Debugging function when a C-FIND-RQ is sent.

C-FIND Request Parameters

(M) Message ID
(M) Affected SOP Class UID
(M) Priority
(M) Identifier

Parameters:	msg (dimse_messages.C_FIND_RQ) – The C-FIND-RQ message to be sent.

static debug_send_c_find_rsp(msg)[source][source]¶

Debugging function when a C-FIND-RSP is sent.

C-FIND Response Parameters

(U) Message ID
(M) Message ID Being Responded To
(U) Affected SOP Class UID
(C) Identifier
(M) Status

Parameters:	msg (dimse_messages.C_FIND_RSP) – The C-FIND-RSP message to be sent.

static debug_send_c_get_rq(msg)[source][source]¶

Debugging function when a C-GET-RQ is sent.

C-GET Request Parameters

(M) Message ID
(M) Affected SOP Class UID
(M) Priority
(M) Identifier

Parameters:	msg (dimse_messages.C_GET_RQ) – The C-GET-RQ message to be sent.

static debug_send_c_get_rsp(msg)[source][source]¶

Debugging function when a C-GET-RSP is sent.

C-GET Response Parameters

(U) Message ID
(M) Message ID Being Responded To
(U) Affected SOP Class UID
(U) Identifier
(M) Status
(C) Number of Remaining Sub-operations
(C) Number of Completed Sub-operations
(C) Number of Failed Sub-operations
(C) Number of Warning Sub-operations

Parameters:	msg (dimse_messages.C_GET_RSP) – The C-GET-RSP message to be sent.

static debug_send_c_move_rq(msg)[source][source]¶

Debugging function when a C-MOVE-RQ is sent.

C-MOVE Request Parameters

(M) Message ID
(M) Affected SOP Class UID
(M) Priority
(M) Move Destination
(M) Identifier

Parameters:	msg (dimse_messages.C_MOVE_RQ) – The C-MOVE-RQ message to be sent.

static debug_send_c_move_rsp(msg)[source][source]¶

Debugging function when a C-MOVE-RSP is sent.

C-MOVE Response Parameters

(U) Message ID
(M) Message ID Being Responded To
(U) Affected SOP Class UID
(U) Identifier
(M) Status
(C) Number of Remaining Sub-operations
(C) Number of Completed Sub-operations
(C) Number of Failed Sub-operations
(C) Number of Warning Sub-operations

Parameters:	msg (dimse_messages.C_MOVE_RSP) – The C-MOVE-RSP message to be sent.

static debug_send_c_store_rq(msg)[source][source]¶

Debugging function when a C-STORE-RQ is sent.

C-STORE Request Elements

(M) Message ID
(M) Affected SOP Class UID
(M) Affected SOP Instance UID
(M) Priority
(U) Move Originator Application Entity Title
(U) Move Originator Message ID
(M) Data Set

Parameters:	msg (dimse_messages.C_STORE_RQ) – The C-STORE-RQ message to be sent.

static debug_send_c_store_rsp(msg)[source][source]¶

Debugging function when a C-STORE-RSP is sent.

C-STORE Response Elements

(U) Message ID
(M) Message ID Being Responded To
(U) Affected SOP Class UID
(U) Affected SOP Instance UID
(M) Status

Parameters:	msg (dimse_messages.C_STORE_RSP) – The C-STORE-RSP message to be sent.

static debug_send_n_action_rq(msg)[source][source]¶

Debugging function when an N-ACTION-RQ is sent.

Parameters:	msg (dimse_messages.N_ACTION_RQ) – The N-ACTION-RQ message to be sent.

static debug_send_n_action_rsp(msg)[source][source]¶

Debugging function when an N-ACTION-RSP is sent.

Parameters:	msg (dimse_messages.N_ACTION_RSP) – The N-ACTION-RSP message to be sent.

static debug_send_n_create_rq(msg)[source][source]¶

Debugging function when an N-CREATE-RQ is sent.

Parameters:	msg (dimse_messages.N_CREATE_RQ) – The N-CREATE-RQ message to be sent.

static debug_send_n_create_rsp(msg)[source][source]¶

Debugging function when an N-CREATE-RSP is sent.

Parameters:	msg (dimse_messages.N_CREATE_RSP) – The N-CREATE-RSP message to be sent.

static debug_send_n_delete_rq(msg)[source][source]¶

Debugging function when an N-DELETE-RQ is sent.

Parameters:	msg (dimse_messages.N_DELETE_RQ) – The N-DELETE-RQ message to be sent.

static debug_send_n_delete_rsp(msg)[source][source]¶

Debugging function when an N-DELETE-RSP is sent.

Parameters:	msg (dimse_messages.N_DELETE_RSP) – The N-DELETE-RSP message to be sent.

static debug_send_n_event_report_rq(msg)[source][source]¶

Debugging function when an N-EVENT-REPORT-RQ is sent.

Parameters:	msg (dimse_messages.N_EVENT_REPORT_RQ) – The N-EVENT-REPORT-RQ message to be sent.

static debug_send_n_event_report_rsp(msg)[source][source]¶

Debugging function when an N-EVENT-REPORT-RSP is sent.

Parameters:	msg (dimse_messages.N_EVENT_REPORT_RSP) – The N-EVENT-REPORT-RSP message to be sent.

static debug_send_n_get_rq(msg)[source][source]¶

Debugging function when an N-GET-RQ is sent.

Parameters:	msg (dimse_messages.N_GET_RQ) – The N-GET-RQ message to be sent.

static debug_send_n_get_rsp(msg)[source][source]¶

Debugging function when an N-GET-RSP is sent.

Parameters:	msg (dimse_messages.N_GET_RSP) – The N-GET-RSP message to be sent.

static debug_send_n_set_rq(msg)[source][source]¶

Debugging function when an N-SET-RQ is sent.

Parameters:	msg (dimse_messages.N_SET_RQ) – The N-SET-RQ message to be sent.

static debug_send_n_set_rsp(msg)[source][source]¶

Debugging function when an N-SET-RSP is sent.

Parameters:	msg (dimse_messages.N_SET_RSP) – The N-SET-RSP message to be sent.

get_msg(block=False)[source][source]¶

Get the next available DIMSE message.

Parameters:	block (bool) – If True then the function will block until either a message is available or dimse_timeout expires, otherwise non-blocking.
Returns:	The next available (context ID, DIMSE message), which is taken off the queue, or (None, None) if no messages are available within the dimse_timeout period.
Return type:	int, dimse_messages.DIMSEMessage or None, None

on_receive_dimse_message(message)[source][source]¶

Controls which debugging function is called when receiving.

Function will be called immediately after receiving and decoding a DIMSE message.

Parameters:	message (dimse_messages.DIMSEMessage) – The DIMSE message that was received.

on_send_dimse_message(message)[source][source]¶

Controls which debugging function is called when sending.

Will be called immediately prior to encoding and sending a DIMSE message.

Parameters:	message (dimse_messages.DIMSEMessage) – The DIMSE message to be sent.

peek_msg()[source][source]¶

Return the first message in the message queue or None.

Returns:	The first (context ID, message) in the queue if one is available, otherwise (None, None). No messages are taken out of the queue.
Return type:	int, dimse_messages.DIMSEMessage or None, None

receive_primitive(primitive)[source][source]¶

Process a P-DATA primitive received from the remote.

A DIMSE message is split into one or more P-DATA primitives, which must be sent in sequential order. While waiting for all the P-DATA primitives associated with a message the encoded data is stored in self.message, which is decoded only when complete and converted into a DIMSE Message primitive which is added to the msg_queue.

This makes it possible to process incoming P-DATA primitives into DIMSE messages while a service class implementation is running.

Parameters:	primitive (pdu_primitives.P_DATA) – A P-DATA primitive received from the peer to be processed.

send_msg(primitive, context_id)[source][source]¶

Send a DIMSE-C or DIMSE-N message to the peer AE.

Parameters:	primitive (dimse_primitives DIMSE Primitive class) – The DIMSE message primitive to send to the peer. context_id (int) – The ID of the presentation context that the message is to be sent under.