Norbert,
When we talked I thought you were trying to have a named set of processing attributes (i.e. job ticket) that could be referenced when submitting a job. I may have misunderstood.
Pete
Peter Zehler
Xerox Research Center Webster
Email: Peter.Zehler at Xerox.com<mailto:Peter.Zehler at Xerox.com>
Voice: (585) 265-8755
FAX: (585) 265-7441
US Mail: Peter Zehler
Xerox Corp.
800 Phillips Rd.
M/S 128-25E
Webster NY, 14580-9701
From: ipp-bounces at pwg.org [mailto:ipp-bounces at pwg.org] On Behalf Of Michael Sweet
Sent: Monday, January 27, 2014 1:56 PM
To: Norbert Schade
Cc: ipp at pwg.org
Subject: Re: [IPP] named services
Norbert,
Currently there is no notion of a default service in (standard) IPP or the SM. CUPS has a pair of extension operations for getting and setting the default printer (and at one point even allowed a server to advertise it as a sort-of "default network printer" that clients could prefer, with the usual security caveats), however those operations are now rarely used as mobile computing has made the notion of a default printer location-specific.
What are you trying to do?
On Jan 27, 2014, at 1:23 PM, Norbert Schade <Norbert.Schade at conexant.com<mailto:Norbert.Schade at conexant.com>> wrote:
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<mailto: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:sequence>
<xs:element ref="ScanService" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
<xs:anyAttribute namespace="##other" processContents="lax"/>
<!-- ScanServices - set of Scan services -->
</xs:complexType>
<xs:element name="ScanServices" type="ScanServicesType"/>
<!-- ScanService - object -->
<xs:complexType name="ScanServiceBaseType">
<xs:sequence>
<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:sequence>
<xs:anyAttribute namespace="##other" processContents="lax"/>
<!-- ScanService - object -->
</xs:complexType>
<xs:complexType name="ScanServiceType">
<xs:complexContent>
<xs:extension base="ScanServiceBaseType">
<xs:sequence>
<xs:element name="JobTable">
<xs:complexType>
<xs:sequence>
<xs:element name="ActiveJobs" type="ScanJobsType"/>
<xs:element name="JobHistory" type="ScanJobsType" minOccurs="0"/>
<xs:any namespace="##other" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
<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
Norbert,
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.
Regards
Norbert
Norbert Schade
Systems Engineer (printing)
Imaging Solutions
Conexant Systems, Inc.
201 Jones Road
Waltham, MA 02451
U.S.A.
Tel: 1-781-370-8929
Email: norbert.schade at conexant.com<mailto:norbert.schade at conexant.com>
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