[pycsw-devel] gmd schema 2005 broken? Schemas parser error

[Jachym Cepicky]

hi tom,

in PyWPS-4 we will have exactly this option for Inputs - they may pass the
validation based on configuration. I think, it is good feature to have in
order to have your (meta)data records in shape.

However, I would say, this problem happens *before* the record get's
validated.

What profile (namespace) are you guys using for your geospatial metadata
(of data and services)?

Thanks

jachym

P.S. Sorry, if my questions seem odd - I'm quite new to practical usage of
this field

so 3. 10. 2015 v 14:54 odesílatel Tom Kralidis <tomkralidis at gmail.com>
napsal:

> Hi Jachym: looks like the metadata record itself is not valid.  CSW
> itself leaves GetRecords and GetRecordById responses relatively open
> (either the default Dublin Core + ows:BoundingBox, or anything else),
> given the various metadata formats.
>
> pycsw does not perform XML validation when ingesting metadata records
> (either via CSW-T operations or via the pycsw-admin.py load_records
> command).  Rather, pycsw parses the metadata record (assuming it's a
> supported format, else throws an error) and inserts it into the
> repository.
>
> Note you can use pycsw-admin.py to validate XML records before insertion
> with:
>
> pycsw-admin.py -c validate_xml -x file.xml -s file.xsd
>
> Or you can use the pycsw API (assuming 1.10.2) like:
>
> from pycsw.admin import validate_xml
> result = validate_xml(xml_filepath, xsd_filepath)
>
> Having said this, we never turned on validating parsers when ingesting
> metadata records given the reality that many / most are not XML valid.
> As enhancement, we could provide a configuration setting which turns
> on strict mode validation when ingesting metadata records into pycsw,
> like:
>
> metadata_validation=off|warn|strict
>
> What do folks think?
>
> ..Tom
>
>
> On Fri, Oct 2, 2015 at 5:12 PM, Jachym Cepicky <jachym.cepicky at gmail.com>
> wrote:
> > Hi all,
> >
> > I would like to validate some records from our PyCSW instance, but it
> seems,
> > that the schemas are broken ? I test on Linux command line and python
> lxml
> > with the same result:
> >
> > # download the metadata record
> > $ wget -O record.xml
> > "
> http://geosense.cz/cgi-bin/csw.py?service=CSW&version=2.0.2&Request=GetRecordById&id=CZ-29002567-srv-jedinecny_nazev_sluzby&outputSchema=http://www.isotc211.org/2005/gmd&elementSetName=full
> "
> >
> > # create local xsd schema file
> > $ cat << EOF > schema.xsd
> > <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
> > targetNamespace="http://www.isotc211.org/2005/srv"
> > elementFormDefault="qualified" version="0.1">
> > <xs:include
> > schemaLocation="
> http://schemas.opengis.net/iso/19139/20060504/srv/serviceMetadata.xsd"/>
> > </xs:schema>
> > EOF
> >
> > # finally test the schema
> > $ xmllint --schema schema.xsd record.xml  --noout
> >
> > result:
> >
> >
> http://schemas.opengis.net/iso/19139/20060504/gml/coordinateOperations.xsd:48
> :
> > element element: Schemas parser error : Element
> > '{http://www.w3.org/2001/XMLSchema}element', attribute 'ref': The QName
> > value '{http://www.isotc211.org/2005/gmd}AbstractDQ_PositionalAccuracy'
> does
> > not resolve to a(n) element declaration.
> > WXS schema schema.xsd failed to compile
> >
> > Any hint? Do I use proper version of XSD?
> >
> > Thanks for hint
> >
> > Jachym
> >
>
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