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Posted to general@xmlgraphics.apache.org by bu...@apache.org on 2010/06/25 10:43:36 UTC

DO NOT REPLY [Bug 49499] New: dc:date may not be embedded in a rdf:Seq

https://issues.apache.org/bugzilla/show_bug.cgi?id=49499

           Summary: dc:date may not be embedded in a rdf:Seq
           Product: XMLGraphicsCommons
           Version: Trunk
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: XMP
        AssignedTo: general@xmlgraphics.apache.org
        ReportedBy: jeremias@apache.org


Currently, if there's only one dc:date, it is not written out as part of an
rdfSeq. Various such examples can be found on the net. However, the recent XMP
spec (from 2008) is now very explicit about that so the current behaviour needs
to be changed. The old spec from September 2005 which our current code was
built on was not.

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[Bug 49499] dc:date may not be embedded in a rdf:Seq

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=49499

Diego Wong <di...@web.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |diego.wong@web.de

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[Bug 49499] dc:date may not be embedded in a rdf:Seq

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=49499

--- Comment #4 from Diego Wong <di...@web.de> ---
Hi,
it seems like not only dc:date but also dc:title have the wrong value types. I
have created a PDF/A-1b using Apache FOP and according to an free online xmp
validator
(http://www.pdflib.com/knowledge-base/xmp-metadata/free-xmp-validator/), the
dc:title should be of type rdf:Alt. The XMP specification I attached in the
previous post confirms the error message of the xmp validator on page 27. An
example of a correct dc:title representation can be found on page 23.

Is this related to this bug report, or should I file a new bug report?

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[Bug 49499] dc:date may not be embedded in a rdf:Seq

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=49499

--- Comment #2 from Diego Wong <di...@web.de> ---
Hi,
I have attached the XMP specification from Adobe (ISO 16684-1:2011(E)). The
table 4 in section 8.3, on page 25, lists the properties of the Dublin Core
namespace as well as their types. In this table, dc:date is listed as an
ordered array (e.g. rdf:seq) of Date.

Subsubsection 7.9.3.3, on page 20, states that the equivalent representation of
dc:date as a rdf:description shall not be used in XMP.

I hope this helps.

Best regards

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[Bug 49499] dc:date may not be embedded in a rdf:Seq

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=49499

--- Comment #3 from Diego Wong <di...@web.de> ---
Created attachment 29432
  --> https://issues.apache.org/bugzilla/attachment.cgi?id=29432&action=edit
XMP Specification

The XMP Specification from Adobe

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DO NOT REPLY [Bug 49499] dc:date may not be embedded in a rdf:Seq

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=49499

Glenn Adams <gl...@skynav.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #1 from Glenn Adams <gl...@skynav.com> 2012-04-09 19:25:46 UTC ---
(In reply to comment #0)
> Currently, if there's only one dc:date, it is not written out as part of an
> rdfSeq. Various such examples can be found on the net. However, the recent XMP
> spec (from 2008) is now very explicit about that so the current behaviour needs
> to be changed. The old spec from September 2005 which our current code was
> built on was not.

where should dc:date be placed? could you provide a link to the relevant XMP
spec(s)?

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DO NOT REPLY [Bug 49499] dc:date may not be embedded in a rdf:Seq

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=49499

Glenn Adams <ga...@apache.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P2                          |P3

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