J.4.2 AE Specifications

J.4.2 AE Specifications (Current)
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This AE complies with Section 10.5 “Store Transaction” in PS3.18 , specification for STOW-RS storage.

J.4.2.1 STOW-RS Specifications

J.4.2.1.1 STOW-RS Store Instance

Table J.4.2-1. STOW-RS Store Instances Specification

Category	Restrictions
Media Types Supported (Accept header)	Restricted to application/dicom or application/dicom+xml
Transfer Syntaxes Supported (Media Type parameter)	Any Transfer Syntax supported by the hosting EXAMPLE-PACS-ARCHIVE
SOP Class Restrictions	Restricted to SOP classes supported by the hosting EXAMPLE-PACS-ARCHIVE
Size restriction	Restricted to size supported by the hosting EXAMPLE-PACS-ARCHIVE

J.4.2.2.4 Connection Policies

J.4.2.2.4.1 General

All standard RS connection policies apply. There are no extensions for RS options.

J.4.2.2.4.2 Number of Connections

EXAMPLE-STOW-SERVICE limits the number of simultaneous RS requests. Additional requests will be queued after the HTTP connection is accepted. When an earlier request completes, a pending request will proceed.

Table J.4.2-4. Number of HTTP Requests Supported

Maximum number of simultaneous RS requests

100 (configurable)

J.4.2.2.4.3 Asynchronous Nature

EXAMPLE-STOW-SERVICE does not support RS asynchronous response.

J.4.2.2.4.4 SOP Specific Conformance for SOP Class(Es)

The EXAMPLE-STOW-SERVICE response message header contains status codes indicating success, warning, or failure as shown in the "HTTP Standard Response Codes" below. No additional status codes are used.

Table J.4.2.2.4.4-1. HTTP Standard Response Codes

Service Status	HTTP Status Code	STOW-RS Description
Failure	400 - Bad Request	This indicates that the STOW-RS Service was unable to store any instances due to bad syntax.
	401 - Unauthorized	This indicates that the STOW-RS Service refused to create or append any instances because the client is not authenticated.
	403 - Forbidden	This indicates that the STOW-RS Service understood the request, but is refusing to fulfill it (e.g., an authenticated user with insufficient privileges).
	409 - Conflict	This indicates that the STOW-RS Service request was formed correctly but the service was unable to store any instances due to a conflict in the request (e.g., unsupported SOP Class or Study Instance UID mismatch). This may also be used to indicate that a STOW-RS Service was unable to store any instances for a mixture of reasons. Additional information regarding the instance errors can be found in the XML response message body.
	503 - Busy	This indicates that the STOW-RS Service was unable to store any instances because it was out of resources.
Warning	202 - Accepted	This indicates that the STOW-RS Service stored some of the instances but warnings or failures exist for others. Additional information regarding this error can be found in the XML response message body.


Success	200 - OK	This indicates that the STOW-RS Service successfully stored all the instances.

The EXAMPLE-STOW-SERVICE response message body (PS3.18 XML Store Instances Response Module) contains the DICOM status codes for individual SOP Instances indicating success, warning, or failure as defined below. No additional status codes are used.

For the following semantics the associated value are used for the Warning Reason (0008,1196):

B000

Coercion of Data Elements

The STOW-RS Service modified one or more data elements during storage of the instance.

B006

Elements Discarded

The STOW-RS Service discarded some data elements during storage of the instance.

B007

Data Set does not match SOP Class

The STOW-RS Service stored the instance despite the Data Set not matching the constraints of the SOP Class.

Additional codes may be used for the Warning Reason (0008,1196) to address the semantics of other issues.

In the event that multiple codes may apply, the single most appropriate code is used.

For the following semantics the associated value are used for the Failure Reason (0008,1197).

A700

Refused out of Resources

The STOW-RS Service did not store the instance because it was out of memory.

A710

Refused out of Resources

The STOW-RS Service did not store the instance because it was out of storage space.

A900

Error: Data Set does not match SOP Class

The STOW-RS Service did not store the instance because the SOP Class of an element in the Referenced SOP Instance Sequence did not correspond to the SOP class registered for this SOP Instance at the STOW-RS Service.

C000

Error: Cannot understand

The STOW-RS Service did not store the instance because it cannot understand certain Data Elements.

C122

Referenced Transfer Syntax not supported

The STOW-RS Service did not store the instance because it does not support the requested Transfer Syntax for the instance.

0110

Processing failure

The STOW-RS Service did not store the instance because of a general failure in processing the operation.

0122

Referenced SOP Class not supported

The STOW-RS Service did not store the instance because it does not support the requested SOP Class.

Additional codes may be used for the Failure Reason (0008,1197) to address the semantics of other errors.

In the event that multiple codes may apply, the single most appropriate code shall be used.

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