RE: PMP> RE: prtChannelType proposal for WS-Print

From: Zehler, Peter (Peter.Zehler@xerox.com)
Date: Thu Nov 01 2007 - 11:48:44 EDT

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Comments below and updated proposal

Peter Zehler
XEROX
Xerox Research Center Webster
Email: Peter.Zehler@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

-----Original Message-----
From: Ira McDonald [mailto:blueroofmusic@gmail.com]
Sent: Thursday, November 01, 2007 11:24 AM
To: Zehler, Peter; Ira McDonald
Cc: pmp@pwg.org; Mike Fenelon
Subject: Re: PMP> RE: prtChannelType proposal for WS-Print

Hi Pete,

Comments:

(1) RFC 2396 (in syntaxes) is obsoleted by RFC 3986.
<PZ>OK</PZ>

(2) I suggest that instead of 'Address' (somewhat inaccurate), the
keyword for WS-Print Service URL be 'ServiceURI' - consistent with
other existing channels and with the PWG Port Monitor MIB.
<PZ>I choose Adress based on the WS-Transfer/WS-MetadataExchange
elemenat name in Relationships. I can live with ServiceURI. It should
be noted that the multiplicity is probably wrong since the Service can
be available at multiple URLs (e.g. IPv4 and IPv6 IP addresses in a
URL). And yes I know that is not a good idea but it happens in
unmanaged networks.</PZ>

(3) Syntax for DeviceUUID should be changed to
    'URI (Unicode UTF-8 per RFC 3986)'
    - consistent with other channels and RFC 4122 (your reference)
    - note that OCTET STRING is BINARY and illegal in human-readable
    prtChannelInfo object (which must be string parseable).
<PZ>That is what I originally had. As long as a value such as
'uuid:172582cc-4dc4-4786-abc2-d1c307123ac6' is valid it works for
me.</PZ>

Cheers,
- Ira

Updated proposal:
________________________________________________

chWSPrint(46), -- Not in RFC 3805

-- Web Services on Devices Printer (WS-Print),

-- (WS-Print 1.0 - see [WS-Print])

--
-- WS-Print Service URL
-- Keyword: ServiceURI
-- Syntax: URI (Unicode UTF-8 per
-- [RFC3986])
-- Status: Mandatory
-- Multiplicity: Multiple
-- Default: not applicable
-- Description: URI of this WS-Print Printer
-- within Internet naming scope. Unicode
-- UTF-8 [RFC3629] string with
-- hexadecimal escapes for any non-ASCII
-- characters (per [RFC3986]).
-- Conformance: A WS-Print Printer shall list
-- all URLs it supports (one per Channel
-- entry). 
--
-- WS-Print Device ID
-- Keyword: DeviceUUID
-- Syntax: 'URI (Unicode UTF-8 per RFC 3986)
-- Status: Optional
-- Multiplicity: Single
-- Default: not applicable
-- Description: Globally unique protocol 
-- independent identifier for the device
-- hosting the WS-Print Printer
-- (per [RFC4122]).
--
--
-- WS-Print Service ID
-- Keyword: ServiceId
-- Syntax: URI (Unicode UTF-8 per
-- [RFC3986])
-- Status: Optional
-- Multiplicity: Single
-- Default: not applicable
-- Description: Identifier for the 
--  host which MUST be persisted 
-- across re-initialization and MUST NOT 
-- be shared across multiple Host elements.
-- Conformance: This value should be 
-- compared directly, as a case-sensitive 
-- string, with no attempt to make a relative 
-- URI into an absolute URI, to process escape 
-- sequences or to otherwise canonicalize it. 
-- (See [DEVPROF])
--
[WS-Print] Microsoft Corporation, "Print Service Definition Version 1.0
For Web Services on Devices ", November 2006, (See
http://www.microsoft.com/whdc/rally/wsdspecs.mspx)
 
[RFC 4122] P. Leach, et al, "A Universally Unique Identifier (UUID) URN
Namespace," July 2005. (See http://www.ietf.org/rfc/rfc4122.txt)
 
[DEVPROF] - J. Schlimmer, et all,  "Devices Profile for Web Services",
February 2006.
(See http://specs.xmlsoap.org/ws/2006/02/devprof/devicesprofile.pdf )   
________________________________________________
 
On 11/1/07, Zehler, Peter <Peter.Zehler@xerox.com> wrote:
>
>
>
>
> All,
>
>
>
> Here are the 4 changes that have been proposed.  I have updated the
text in
> the included mail note below.
>
> 1) Change chWsPrint to chWSPrint
>
> 2) Change Keyword: Device UUID to Keyword: DeviceUUID
>
> 3) Make WS-Print Device ID optional
>
> 4) Make WS-Print Service ID optional
>
>
>
> The other question I have is what should be used for the value of
> prtChannelProtocolVersion?
>
> a)      "Web Services on Devices Printer, v1.0"
>
> b)
> "http://schemas.microsoft.com/windows/2006/08/wdp/print"
>
> c)      "WSPrint:
> http://schemas.microsoft.com/windows/2006/08/wdp/print"
>
>
>
> Pete
>
>
>
>
> Peter Zehler
>  XEROX
>  Xerox Research Center Webster
>  Email: Peter.Zehler@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: Zehler, Peter
>  Sent: Wednesday, October 31, 2007 2:30 PM
>  To: 'pmp@pwg.org'
>  Cc: 'Mike Fenelon'
>  Subject: prtChannelType proposal for WS-Print
>
>
>
> All,
>
> Below is my proposal for the extension of PrtChannelTypeTC to cover
WS-Print
> capable devices.
>
> Comments?
>
> Pete
>
> ________________________________________________
>
> chWSPrint(46), -- Not in RFC 3805
>
> -- Web Services on Devices Printer (WS-Print),
>
> -- (WS-Print 1.0 - see [WS-Print])
>
> --
>
> -- WS-Print Service URL
>
> -- Keyword: Address
>
> -- Syntax: URI (Unicode UTF-8 per
>
> -- [RFC2396])
>
> -- Status: Mandatory
>
> -- Multiplicity: Single
>
> -- Default: not applicable
>
> -- Description: URI of this WS-Print Printer
>
> -- within Internet naming scope. Unicode
>
> -- UTF-8 [RFC3629] string with
>
> -- hexadecimal escapes for any non-ASCII
>
> -- characters (per [RFC2396]).
>
> -- Conformance: A WS-Print Printer shall list
>
> -- all URLs it supports (one per Channel
>
> -- entry).
>
> --
>
> -- WS-Print Device ID
>
> -- Keyword: DeviceUUID
>
> -- Syntax: OCTET STRING (SIZE(0..63)
>
> -- Status: Optional
>
> -- Multiplicity: Single
>
> -- Default: not applicable
>
> -- Description: Globally unique protocol
>
> -- independent identifier for the device
>
> -- hosting the WS-Print Printer
>
> -- (per [RFC4122]).
>
> --
>
> --
>
> -- WS-Print Service ID
>
> -- Keyword: ServiceId
>
> -- Syntax: URI (Unicode UTF-8 per
>
> -- [RFC2396])
>
> -- Status: Optional
>
> -- Multiplicity: Single
>
> -- Default: not applicable
>
> -- Description: Identifier for the
>
> --  host which MUST be persisted
>
> -- across re-initialization and MUST NOT
>
> -- be shared across multiple Host elements.
>
> -- Conformance: This value should be
>
> -- compared directly, as a case-sensitive
>
> -- string, with no attempt to make a relative
>
> -- URI into an absolute URI, to process escape
>
> -- sequences or to otherwise canonicalize it.
>
> -- (See [DEVPROF])
>
> --
>
> [WS-Print] Microsoft Corporation, "Print Service Definition Version
1.0 For
> Web Services on Devices ", November 2006, (See
> http://www.microsoft.com/whdc/rally/wsdspecs.mspx)
>
>
>
> [RFC 4122] P. Leach, et al, "A Universally Unique Identifier (UUID)
URN
> Namespace," July 2005. (See
> http://www.ietf.org/rfc/rfc4122.txt)
>
>
>
> [DEVPROF] - J. Schlimmer, et all,  "Devices Profile for Web Services",
> February 2006.
>
> (See
> http://specs.xmlsoap.org/ws/2006/02/devprof/devicesprofile.pdf
> )
>
> ________________________________________________
>
>
>
>
>
>
> Peter Zehler
>  XEROX
>  Xerox Research Center Webster
>  Email: Peter.Zehler@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: Zehler, Peter
>  Sent: Tuesday, October 30, 2007 7:00 PM
>  To: 'pmp@pwg.org'
>  Cc: 'Mike Fenelon'
>  Subject: prtChannelType for WS-Print
>
>
>
> All,
>
> I would like to see chWsPrint(46) registered for the WS-Print print
channel.
>  What would have to be done to accomplish this?  I would also like to
see
> the prtChannelProtocolVersion be defined to hold the target namespace
for
> the protocol.
>
> Pete
>
>
>
> Peter Zehler
>  XEROX
>  Xerox Research Center Webster
>  Email: Peter.Zehler@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
>
>
-- 
Ira McDonald (Musician / Software Architect)
Chair - Linux Foundation Open Printing WG
Blue Roof Music / High North Inc
PO Box 221  Grand Marais, MI  49839
work: +1-906-494-2434
home: +1-906-494-2697
email: blueroofmusic@gmail.com

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