[IPP] named services

[IPP] named services

[IPP] named services

Norbert Schade Norbert.Schade at conexant.com
Mon Jan 27 18:23:27 UTC 2014

Ok, found a ServiceName under ImagingServiceDescriptionType.
I guess that will help me with the name.

You have another idea how to make one of many services the default?

From: Norbert Schade
Sent: Monday, January 27, 2014 12:41 PM
To: 'Michael Sweet'
Cc: ipp at pwg.org
Subject: RE: [IPP] named services

There's always the chance that I misinterpret something.
But the excerpt below is from the ScanService.xsd schema. I can't find anything that looks like what you have in mind.
And so far I think I'm looking at the right object.

                <!-- ScanServices - set of Scan services -->
                <xs:complexType name="ScanServicesType">
                                                <xs:element ref="ScanService" minOccurs="0" maxOccurs="unbounded"/>
                                <xs:anyAttribute namespace="##other" processContents="lax"/>
                                <!-- ScanServices - set of Scan services -->
                <xs:element name="ScanServices" type="ScanServicesType"/>
                <!-- ScanService - object -->
                <xs:complexType name="ScanServiceBaseType">
                                                <xs:element ref="ScanServiceCapabilities" minOccurs="0"/>
                                                <xs:element ref="ScanServiceCapabilitiesReady" minOccurs="0"/>
                                                <xs:element ref="ScanServiceConfiguration" minOccurs="0"/>
                                                <xs:element ref="ScanServiceDefaults" minOccurs="0"/>
                                                <xs:element ref="ScanServiceDescription"/>
                                                <xs:element ref="ScanServiceStatus"/>
                                                <xs:any namespace="##other" minOccurs="0" maxOccurs="unbounded"/>
                                <xs:anyAttribute namespace="##other" processContents="lax"/>
                                <!-- ScanService - object -->
                <xs:complexType name="ScanServiceType">
                                                <xs:extension base="ScanServiceBaseType">
                                                                                <xs:element name="JobTable">
                                                                                                                                <xs:element name="ActiveJobs" type="ScanJobsType"/>
                                                                                                                                <xs:element name="JobHistory" type="ScanJobsType" minOccurs="0"/>
                                                                                                                                <xs:any namespace="##other" minOccurs="0" maxOccurs="unbounded"/>
                <xs:element name="ScanService" type="ScanServiceType"/>

From: Michael Sweet [mailto:msweet at apple.com]
Sent: Monday, January 27, 2014 12:18 PM
To: Norbert Schade
Cc: ipp at pwg.org<mailto:ipp at pwg.org>
Subject: Re: [IPP] named services


Doesn't the existing IPP printer-name attribute (SM ServiceName element) already provide this?

On Jan 27, 2014, at 12:03 PM, Norbert Schade <Norbert.Schade at conexant.com<mailto:Norbert.Schade at conexant.com>> wrote:

I am heavily working with the scan service these days.
So my note comes out of that effort.
But I think this is a rather general question after all.

A service is typically quite a complex object.
A name that identifies a service on the highest level would in many cases ease the management and debugging of functionality that deals with services.
And if I had more than one service in my scan service xml instance I'd prefer one to be the default (services have their own defaults, but a service itself cannot be the default within a services group).

I helped myself by adding a vendor extension (a simple attribute) to the ScanServices and ScanService objects.

I could even imagine to add an ID attribute to a ScanService object and an IDREF attribute to the ScanServices object.
But I can't really do that with vendor extensions.

Just wondering if other people also feel that a named service and a default reference to such a named service might improve the situation.

Norbert Schade
Systems Engineer (printing)
Imaging Solutions
Conexant Systems, Inc.
201 Jones Road
Waltham, MA 02451
Tel: 1-781-370-8929
Email: norbert.schade at conexant.com<mailto:norbert.schade at conexant.com>

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