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Subject: Re: [sca-bindings] Issue 124 proposal version 2 - a comment
- From: Mike Edwards <mike_edwards@uk.ibm.com>
- To: Eric Johnson <eric@tibco.com>
- Date: Thu, 25 Mar 2010 11:42:32 +0000
Folks,
I'd like to pick up on something Eric
mentions in his email below:
" In the context
of SCA, if someone uses the @wsdlElement form, then they'd be forced to
support the WS-Policy spec"
I find it surprising that the SCA binding.ws
specification does not REQUIRE support of the WS-Policy specification.
This is particularly the case given
that the spec defines a WS-Policy policy.
So: Should we raise an issue to add
a conformance requirement that a binding.ws implementation MUST support
the WS-Policy
specification (although not any specific
policy assertions other than the one defined within the binding.ws spec).?
Yours, Mike.
Strategist - Emerging Technologies, SCA & SDO.
Co Chair OASIS SCA Assembly TC.
IBM Hursley Park, Mail Point 146, Winchester, SO21 2JN, Great Britain.
Phone & FAX: +44-1962-818014 Mobile: +44-7802-467431
Email: mike_edwards@uk.ibm.com
From:
| Eric Johnson <eric@tibco.com>
|
To:
| Anish Karmarkar <Anish.Karmarkar@oracle.com>
|
Cc:
| sca-bindings@lists.oasis-open.org
|
Date:
| 25/03/2010 05:59
|
Subject:
| Re: [sca-bindings] Issue 124 proposal
version 2 |
Hi Anish,
On 03/24/2010 02:51 PM, Anish Karmarkar wrote:
Version 2 based on feedback from last week's call is attached.
* Fixed editorial bugs pointed out by EricJ in section 6.
* I did some due diligence on the question of whether creating independent
conformance points for WSCB service/client results in a problem (as pointed
out by EricJ), since the other non-section5 conformance items are no longer
applicable to WSCB service/client. I found 5 assertions that are somewhat
related (noted below). The others are about binding.ws syntactic elements/attributes
or something similar.
Thanks for spending the time to do that. I've been hoping to find
the time to get to that all week, and didn't, so I'm glad you did.
a) there is MUST for SOAP 1.1 and a SHOULD for SOAP 1.2. Section 5 also
talks in several places about SOAP header blocks. Strictly speaking there
is no necessity to require SOAP (1.1 or 1.2) for this protocol. It could
depend only on WS-Addressing. But that is a separate issue. To fix this,
I have changed the intro to 5.1 to state that this is a soap/ws-addressing
based protocol. I didn't see a reason to introduce assertions for requiring
SOAP/WS-A. It is required by definition. But if ppl feel strongly we can
introduce new conformance items.
Seems sort of ironic, though, if we define this stand-alone protocol, and
then it is possible to implement it in a way that is conformant, and yet
not compatible with an SCA runtime. Seems to me that we should require
the equivalent level of SOAP support, and therefore have the MUST and SHOULD
requirements around SOAP.
Maybe this is an equivalent nit, but we should likewise require support
for HTTP & HTTPS.
BWS50010 is sort of tricky. In the context of SCA, if someone uses
the @wsdlElement form, then they'd be forced to support the WS-Policy spec,
as well as this requirement to recognize this policy assertion when it
appears in WSDL. Yet if we step away from that, to this stand-alone
definition, what's the conformance target for saying "if your WSCB
supports WSDL, then you must support this policy assertion?"
Likewise for BWS50013 & 50014.
b) There is a requirement for conforming to SCA assembly and policy. I
don't think this is needed (it would defeat the purpose of the issue itself).
c) There is a SHOULD for http endpoints to provide a wsdl description when
queried with ?wsdl and a SHOULD for non http endpoints to provide some
way to obtain the WSDL descriptions. I didn't see a need to have this requirement
on WSCB service/client endpoints. I see this as a SCA runtime requirement
not a protocol requirement.
* wrt Dave's comment about BWS5005/7, I'm not sure what needs to change.
I added a sentence at the beginning of section 5.1 that says that WSCB
service implements the forward interface and the WSCB client implements
the callback interface.
Comments?
Miscellaneous nit - Sections 6.2 & 6.3 reference Appendix B for "Conformance
items related to WSCB...", but that shows up as Appendix C.
And in section C, I don't see that you've separated out the conformance
requirements for WSCB client and server into a separate section.
Two minor editorial nits that I noticed, which Anish's proposal didn't
change, per-se:
"There are four categories of artifacts for which... SCA WS Binding
XML Document ... SCA Runtime"
Shouldn't this be (to match the plural form):
"There are four categories of artifacts for which... SCA WS Binding
XML Documents ... SCA Runtimes"
I also don't like the use of "artifact" here, because I associate
the word with something less operational than an "SCA Runtime".
Can't we just use the phrase:
"This specification defines four targets for conformance:"
-Eric
-Anish
--
On 3/18/2010 9:01 AM, Anish Karmarkar wrote:
Proposal for issue 124 as outlined in [1] is attached.
-Anish
--
[1] http://lists.oasis-open.org/archives/sca-bindings/201003/msg00000.html
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