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OA-315 add new transformer mods2dcatapde and initial stylesheet versi…
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…on (#42)

* OA-315 add new transformer mods2dcatapde and initial stylesheet version

* Update mods2dcatapde.xsl

Put each URL in a single dataset

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Co-authored-by: mmuehlh <mmuehlh@sub.uni-goettingen.de>
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@kkrebs @mmuehlh
kkrebs and mmuehlh authored Sep 8, 2024
1 parent cbf7b51 commit d0ba992
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7 changes: 7 additions & 0 deletions src/main/resources/config/reposis_openagrar/mycore.properties
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Expand Up @@ -264,6 +264,13 @@ MCR.OAIDataProvider.OAI2.Sets.urn=webapp:oai/set_urn.xml
MCR.ContentTransformer.mods2csv_journal.Stylesheet=%MCR.ContentTransformer.mods.Stylesheet%,xsl/mods2csv_jounal.xsl
MCR.ContentTransformer.mods2csv_journal.FileExtension=csv

##############################################################################
# Convert mods into DCATAP.de 2.0 #
##############################################################################
MCR.ContentTransformer.mods2dcatapde.Class=org.mycore.common.content.transformer.MCRXSLTransformer
MCR.ContentTransformer.mods2dcatapde.Stylesheet=xsl/mods2dcatapde.xsl
MCR.ContentTransformer.mods2dcatapde.TransformerFactoryClass=net.sf.saxon.TransformerFactoryImpl

##############################################################################
# Error Page #
##############################################################################
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239 changes: 239 additions & 0 deletions src/main/resources/xsl/mods2dcatapde.xsl
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@@ -0,0 +1,239 @@
<xsl:stylesheet version="2.0"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:mods="http://www.loc.gov/mods/v3"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:dct="http://purl.org/dc/terms/"
xmlns:dcat="http://www.w3.org/ns/dcat#"
xmlns:foaf="http://xmlns.com/foaf/0.1/"
xmlns:org="http://www.w3.org/ns/org#"
exclude-result-prefixes="mods xlink">


<xsl:output method="xml" indent="yes" encoding="UTF-8" />

<!-- URLs in use -->
<!-- open Agrar URLs -->
<xsl:variable name="OABaseURL">https://www.openagrar.de/</xsl:variable>
<xsl:variable name="OAURL"><xsl:value-of select="concat($OABaseURL, 'receive/')" /></xsl:variable>
<xsl:variable name="OAFileURL"><xsl:value-of select="concat($OABaseURL, 'servlets/MCRFileNodeServlet/')" /></xsl:variable>

<!-- Identifier URLs -->
<xsl:variable name="doiURL">https://doi.org/</xsl:variable>
<xsl:variable name="orcidURL">https://orcid.org/</xsl:variable>
<xsl:variable name="gndURL">https://d-nb.info/gnd/</xsl:variable>
<xsl:variable name="viafURL">https://viaf.org/viaf/</xsl:variable>
<xsl:variable name="scopusURL">https://???</xsl:variable>

<!-- EU Vocabularies -->
<xsl:variable name="dctLicenseURI">http://dcat-ap.de/def/licenses/</xsl:variable>
<xsl:variable name="dctLanguageURI">http://publications.europa.eu/resource/authority/language/</xsl:variable>
<xsl:variable name="dctFileType">http://publications.europa.eu/resource/authority/file-type/</xsl:variable>
<xsl:variable name="dctTheme">http://publications.europa.eu/resource/authority/data-theme/</xsl:variable>

<xsl:variable name="ID">
<xsl:choose>
<xsl:when test="mods:mods/mods:identifer[@type='doi']">
<xsl:value-of select="concat($doiURL, mods:mods/mods:identifer[@type='doi'][1])"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="concat($OAURL, /mycoreobject[1]/@ID)"/>
</xsl:otherwise>
</xsl:choose>
</xsl:variable>


<xsl:template match="/mycoreobject/metadata/def.modsContainer/modsContainer">
<xsl:apply-templates />
</xsl:template>

<xsl:template match="@* | text()" />

<!-- Must have: dcat:Catalog + dcat:Dataset -->
<xsl:template match="mods:mods">
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dct="http://purl.org/dc/terms/"
xmlns:dcat="http://www.w3.org/ns/dcat#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:org="http://www.w3.org/ns/org#">
<dcat:Catalog rdf:about="{concat($ID, '#catalog')}">
<xsl:call-template name="title" />
<xsl:call-template name="description" />
<xsl:call-template name="publisher" />
<xsl:call-template name="creator" />
<xsl:call-template name="issued" />
<xsl:call-template name="language" />
<!-- <xsl:call-template name="license" /> -->
<xsl:choose>
<xsl:when test="mods:location/mods:url">
<xsl:call-template name="URLs"/>
</xsl:when>
<xsl:when test="/mycoreobject/structure/derobjects">
<xsl:call-template name="derobjects"/>
</xsl:when>
</xsl:choose>

</dcat:Catalog>
</rdf:RDF>
</xsl:template>

<xsl:template name="creator">
<xsl:for-each select="mods:name[@type='personal']">
<dct:creator>
<rdf:Description>
<xsl:if test="mods:nameIdentifier">
<xsl:attribute name="rdf:about">
<xsl:choose>
<xsl:when test="mods:nameIdentifier[lower-case(@type)='orcid']">
<xsl:value-of select="concat($orcidURL, mods:nameIdentifier[lower-case(@type)='orcid'])"/>
</xsl:when>
<xsl:when test="mods:nameIdentifier[lower-case(@type)='gnd']">
<xsl:value-of select="concat($gndURL, mods:nameIdentifier[lower-case(@type)='gnd'])"/>
</xsl:when>
<xsl:when test="mods:nameIdentifier[lower-case(@type)='viaf']">
<xsl:value-of select="concat($viafURL, mods:nameIdentifier[lower-case(@type)='viaf'])"/>
</xsl:when>
<xsl:when test="mods:nameIdentifier[lower-case(@type)='scopus']">
<xsl:value-of select="concat($scopusURL, mods:nameIdentifier[lower-case(@type)='scopus'])"/>
</xsl:when>
</xsl:choose>
</xsl:attribute>
</xsl:if>
<rdf:type rdf:resource="http://xmlns.com/foaf/0.1/Person"/>
<foaf:name><xsl:value-of select="concat(mods:namePart[@type='family'], ', ', mods:namePart[@type='given'][1])"/></foaf:name>
<foaf:givenName><xsl:value-of select="mods:namePart[@type='given'][1]"/></foaf:givenName>
<foaf:familyName><xsl:value-of select="mods:namePart[@type='family']"/></foaf:familyName>
<xsl:if test="mods:affiliation">
<org:OrganizationOf>
<foaf:Organization>
<foaf:name><xsl:value-of select="mods:affiliation" /></foaf:name>
</foaf:Organization>
</org:OrganizationOf>
</xsl:if>
</rdf:Description>
</dct:creator>
</xsl:for-each>
</xsl:template>


<xsl:template name="title">
<xsl:for-each select="/mycoreobject/metadata/def.modsContainer/modsContainer/mods:mods/mods:titleInfo">
<dct:title>
<xsl:copy-of select="./@xml:lang"/>
<xsl:value-of select="mods:title[1]" />
</dct:title>
</xsl:for-each>
</xsl:template>


<xsl:template name="publisher">
<xsl:if test="/mycoreobject/metadata/def.modsContainer/modsContainer/mods:mods/mods:originInfo[@eventType='publication']">
<dct:publisher>
<foaf:Agent>
<foaf:name><xsl:value-of select="/mycoreobject/metadata/def.modsContainer/modsContainer/mods:mods/mods:originInfo[@eventType='publication']/mods:publisher[1]" /></foaf:name>
</foaf:Agent>
</dct:publisher>
</xsl:if>
</xsl:template>

<xsl:template name="issued">
<xsl:if test="mods:originInfo[@eventType='publication']">
<dct:issued rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">
<xsl:value-of select="concat(mods:originInfo[@eventType='publication']/mods:dateIssued[1], 'T00:00:00')" />
</dct:issued>
</xsl:if>
</xsl:template>

<xsl:template name="description">
<xsl:for-each select="/mycoreobject/metadata/def.modsContainer/modsContainer/mods:mods/mods:abstract[not(@contentType='text/xml')]">
<dct:description>
<xsl:copy-of select="./@xml:lang"/>
<xsl:value-of select="." />
</dct:description>
</xsl:for-each>
</xsl:template>

<xsl:template name="URLs">
<xsl:for-each select="mods:location/mods:url">
<dcat:dataset>
<dcat:Dataset rdf:about="{concat(., '#dataset')}">
<!-- Title and description are mandatory for dataset. Take them from dcat:Catalog -->
<xsl:call-template name="title"/>
<xsl:call-template name="description"/>
<dcat:accessURL rdf:resource="{.}" />
<xsl:call-template name="keywords" />
<!-- Theme in Agrar Open is always AGRI -->
<dcat:theme rdf:resource="{concat($dctTheme, 'AGRI')}"/>
</dcat:Dataset>
</dcat:dataset>
</xsl:for-each>

</xsl:template>

<xsl:template name="derobjects">
<xsl:variable name="objectID"><xsl:value-of select="./@xlink:href"/></xsl:variable>
<xsl:for-each select="/mycoreobject/structure/derobjects/derobject">
<dcat:dataset>
<dcat:Dataset rdf:about="{concat($ID, '#dataset')}">
<xsl:call-template name="title"/>
<xsl:call-template name="description"/>
<dcat:distribution>
<dcat:Distribution rdf:about="{concat($ID, '#distribution')}">
<!-- For mapping the file type to EU Vocabularies file-type usually -->
<dcat:format rdf:resource="{concat($dctFileType, upper-case(substring-after(maindoc, '.')))}"/>
<dcat:accessURL rdf:resource="{$ID}"/>
<dcat:downoadURL rdf:resource="{concat($OAFileURL, $objectID, maindoc)}"/>
<xsl:call-template name="license" />
</dcat:Distribution>
</dcat:distribution>
<xsl:call-template name="keywords" />
<!-- Theme in Agrar Open is always AGRI -->
<dcat:theme rdf:resource="{concat($dctTheme, 'AGRI')}"/>
</dcat:Dataset>
</dcat:dataset>
</xsl:for-each>

</xsl:template>

<xsl:template name="license">
<xsl:for-each select="/mycoreobject/metadata/def.modsContainer/modsContainer/mods:mods/mods:accessCondition[@type='use and reproduction']">
<xsl:variable name="license">
<xsl:choose>
<xsl:when test="contains(./@xlink:href, 'cc_by')">
<xsl:value-of select="concat($dctLicenseURI,'cc-by', translate(substring-after(./@xlink:href, 'cc_by'), '_', '/'))"/>
</xsl:when>
<xsl:when test="contains(./@xlink:href, 'cc_zero')">
<xsl:value-of select="concat($dctLicenseURI, 'cc-zero')" />
</xsl:when>
<!-- To check !! -->
<xsl:when test="contains(., 'mir_licenses#oa')"><xsl:value-of select="concat($dctLicenseURI, 'other-open')" /></xsl:when>
<xsl:when test="contains(., 'mir_licenses#rights_reserved')"><xsl:value-of select="concat($dctLicenseURI, 'other-closed')" /></xsl:when>
</xsl:choose>
</xsl:variable>
<!-- Replace last "_" in license by "/" !!! -->
<dct:license rdf:resource="{$license}"/>
</xsl:for-each>
<!-- What to do with copyrightMD ??? -->
</xsl:template>

<xsl:template name="keywords">
<xsl:for-each select="/mycoreobject/metadata/def.modsContainer/modsContainer/mods:mods/mods:subject/mods:topic">
<dcat:keyword>
<xsl:value-of select="."/>
</dcat:keyword>
</xsl:for-each>
</xsl:template>

<xsl:template name="language">
<xsl:if test="mods:language">
<dct:language>
<xsl:variable name="lang">
<xsl:choose>
<xsl:when test="mods:language/mods:languageTerm[@authority='rfc5646'][1] = 'de'"><xsl:text></xsl:text>DEU</xsl:when>
<xsl:when test="mods:language/mods:languageTerm[@authority='rfc5646'][1] = 'en'">ENG</xsl:when>
<xsl:otherwise>ENG</xsl:otherwise>
</xsl:choose>
</xsl:variable>
<xsl:attribute name="rdf:resource"><xsl:value-of select="concat($dctLanguageURI, $lang)"/></xsl:attribute>
</dct:language>
</xsl:if>
</xsl:template>

</xsl:stylesheet>

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