Re: [Ecrit] WGLC for draft-ietf-ecrit-lost-planned-changes - end date April 8

Peter Saint-Andre <stpeter@mozilla.com> Fri, 04 May 2018 21:42 UTC

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From: Peter Saint-Andre <stpeter@mozilla.com>
To: ecrit@ietf.org
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Date: Fri, 04 May 2018 15:42:21 -0600
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Subject: Re: [Ecrit] WGLC for draft-ietf-ecrit-lost-planned-changes - end date April 8
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On 4/25/18 9:40 AM, Peter Saint-Andre wrote:
> On 3/25/18 2:49 AM, Az Mankin wrote:
>>
>> This starts WGLC for  draft-ietf-ecrit-lost-planned-changes-01,
>> Validation of Locations Around a Planned Change
>>
>> Please send both comments and messages that you support advancement to
>> this mailing list before April 8.
> 
> Again, thanks for your patience with my tardy reply. I took another look
> at the schema. There are a few details I still want to check, but
> overall it seems to be in good shape.

And also feedback on the lostPlannedChange1 schema...

1. As I noted in my comments on the lost-rli1 schema, as far as I know
there's no way in XML schema to restrict the use of an extension to a
particular place in a structure defined by another schema. So a comment
like this in the schema really has no force:

<!-- extend the extensionPoint of commonRequestPattern of findService
                                                       to include:  -->

2. The schema does this import, but a prefix is never defined so we
can't actually use the imported constructs:

     <xs:import namespace="urn:ietf:params:xml:ns:lost1"/>

I suggest:

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
           xmlns="urn:ietf:params:xml:ns:lostPlannedChange1"
           xmlns:lost="urn:ietf:params:xml:ns:lost1"
           targetNamespace="urn:ietf:params:xml:ns:lostPlannedChange1"
           elementFormDefault="qualified">

And then:

           <xs:element ref="lost:uri" type="xs:anyURI" />

           <xs:element ref="ttl" type="lost:expires" minOccurs="0" />

           <xs:element name="uriNotStored" type="lost:basicException"/>

3. The "invalidAsOf" and "ttl" elements are specified as references, but
the elements referenced are never defined:

           <xs:element ref="invalidAsOf" type="xs:dateTime" />

           <xs:element ref="ttl" type="lost:expires" minOccurs="0" />

Perhaps just change "ref" to "name" in each case? Or define the elements
somewhere in the schema.

4. I think we can simplify the "uriNotStored" content as follows:

OLD

<!-- extend the extensionPoint of extensionContainer to include: -->
           <xs:element ref="uriNotStored"/>
<!-- where -->
           <xs:element name="uriNotStored" type="basicException"/>

NEW

<!-- extend the extensionPoint of extensionContainer to include: -->
           <xs:element name="uriNotStored" type="lost:basicException"/>

5. And a nit, there is a "<" missing before xs:group here:

        xs:group ref="plannedChange" minOccurs="1"/>

Hope that helps,

Peter