Metadata export generates invalid XML Dublin Core file

[klimeto]

XML export of sample Dublin Core metadata is invalid XML file against the schema assigned within its root: SchemaLocation attribute: Sample metadata export:

<?xml version="1.0" encoding="UTF-8"?>
<simpledc xmlns:dc="http://purl.org/dc/elements/1.1/"[[BR]]
xmlns:dct="http://purl.org/dc/terms/"[[BR]]
 xmlns:geonet="http://www.fao.org/geonetwork"[[BR]]
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"[[BR]]
 xsi:noNamespaceSchemaLocation="http://www.dublincore.org/schemas/xmls/qdc/2008/02/11/simpledc.xsd">[[BR]]
	<dc:title>TESTING MD RECORD</dc:title>
	<dc:creator>TOMAS KLIMENT</dc:creator>
	<dc:subject>TEST</dc:subject>
	<dc:subject>JRC</dc:subject>
	<dc:description>DESCRIPTION</dc:description>
	<dc:publisher>KLIMENT</dc:publisher>
	<dc:type>testing resource</dc:type>
	<dc:format>text/plain</dc:format>
	<dc:language>eng</dc:language>
	<dc:relation>http://...</dc:relation>
	<dc:coverage>North 90, South -90, East 180, West -180. Global</dc:coverage>
	<dc:rights>Fre for testing</dc:rights>
	<dct:created>now</dct:created>
	<dct:dateSubmitted>tomorrow</dct:dateSubmitted>
	<dct:modified>2012-09-13T11:39:44</dct:modified>
	<dc:identifier>8352f5b4-8be4-4f69-820c-da810f24b988</dc:identifier>
</simpledc>

However it assigns to a schemaLocation attribute simpledc schema, which does not allow elements from dct namespace (dct:created, dct:dateSubmitted etc) thus it causes validation errors:

Element <dct:created> is not allowed under element <simpledc>.
        Reason: The following elements are expected at this location (see below)
            <relation>
            <creator>
            <title>
            <format>
            <rights>
            <identifier>
            <subject>
            <type>
            <source>
            <publisher>
            <contributor>
            <language>
            <coverage>
            <description>
            <date>
        Annotations of type 'dc:elementContainer' (see below)
            This complexType is included as a convenience for schema authors who need to define a root
or container element for all of the DC elements.
        Error location: simpledc / dct:created
        Details
            cvc-model-group: Element <dct:created> unexpected by type 'dc:elementContainer' of element <simpledc>.
            cvc-elt.5.2.1: The element <simpledc> is not valid with respect to the actual type definition 'dc:elementContainer'.

One solution how to resolve this would be to change the schemaLocation and root as follows:

<?xml version="1.0" encoding="UTF-8"?>
<qualifieddc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dct="http://purl.org/dc/terms/" 
xmlns:geonet="http://www.fao.org/geonetwork" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:noNamespaceSchemaLocation="http://dublincore.org/schemas/xmls/qdc/2008/02/11/qualifieddc.xsd" >
	<dc:title>TESTING MD RECORD</dc:title>
	<dc:creator>TOMAS KLIMENT</dc:creator>
	<dc:subject>TEST</dc:subject>
	<dc:subject>JRC</dc:subject>
	<dc:description>DESCRIPTION</dc:description>
	<dc:publisher>KLIMENT</dc:publisher>
	<dc:type>testing resource</dc:type>
	<dc:format>text/plain</dc:format>
	<dc:language>eng</dc:language>
	<dc:relation>http://...</dc:relation>
	<dc:coverage>North 90, South -90, East 180, West -180. Global</dc:coverage>
	<dc:rights>Fre for testing</dc:rights>
	<dct:created>now</dct:created>
	<dct:dateSubmitted>tomorrow</dct:dateSubmitted>
	<dct:modified>2012-09-13T11:39:44</dct:modified>
	<dc:identifier>8352f5b4-8be4-4f69-820c-da810f24b988</dc:identifier>
</qualifieddc>

And this is valid XML file.

[simonp]

Try it out again now following the commits to 2.8.x and trunk. The schema location hint now points to the schema.xsd file used by GeoNetwork - this schema file includes a declaration of simpledc and imports the dct namespace. Hopefully we'll be able to keep our current simpledc approach in place.