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gemet-to-simpleskos.xsl
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gemet-to-simpleskos.xsl
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<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:rdfs='http://www.w3.org/2000/01/rdf-schema#'
xmlns:skos="http://www.w3.org/2004/02/skos/core#"
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:dcterms="http://purl.org/dc/terms/"
xmlns:foaf="http://xmlns.com/foaf/0.1/"
xmlns:gemet="http://www.eionet.europa.eu/gemet/2004/06/gemet-schema.rdf#"
version="2.0">
<!--
Convert GEMET Skos files into a simple skos structure
managed by GeoNetwork opensource.
-->
<xsl:output method="xml" indent="yes"/>
<xsl:variable name="debug" select="false()"/>
<xsl:variable name="maxStringLength" select="254"/>
<xsl:variable select="document('locales.xml')" name="locales"/>
<xsl:variable select="document('gemet-skoscore.rdf')" name="skoscore"/>
<xsl:variable name="root" select="/"/>
<!-- Disabled by default as the thesaurus would be too big-->
<xsl:variable name="withGroup" select="false()"/>
<xsl:variable name="withThemes" select="true()"/>
<!-- Concept, group and supergroup descriptions -->
<xsl:variable name="lang">
<lang>
<xsl:for-each select="$locales//locale">
<xsl:copy-of
select="document(concat('gemet-definitions-', ., '.rdf'))"/>
<xsl:copy-of select="document(concat('gemet-groups-', ., '.rdf'))"/>
</xsl:for-each>
</lang>
</xsl:variable>
<xsl:template name="header">
<!-- Scheme -->
<skos:ConceptScheme rdf:about="http://geonetwork-opensource.org/gemet">
<dc:title>GEMET</dc:title>
<dc:description>GEMET version 4.1.2 thesaurus for GeoNetwork opensource.</dc:description>
<dc:creator>
<foaf:Organization>
<foaf:name>EEA</foaf:name>
</foaf:Organization>
</dc:creator>
<dc:uri>https://www.eionet.europa.eu/gemet/about?langcode=en</dc:uri>
<dc:rights>https://www.eionet.europa.eu/gemet/about?langcode=en</dc:rights>
<dcterms:issued>2018-08-16</dcterms:issued>
<dcterms:modified>2018-08-16</dcterms:modified>
<xsl:comment>Generated <xsl:value-of select="current-dateTime()"/>.
</xsl:comment>
<xsl:text>
</xsl:text>
<xsl:choose>
<xsl:when test="$withGroup">
<skos:hasTopConcept
rdf:resource="http://www.eionet.europa.eu/gemet/supergroups"/>
<xsl:for-each-group
select="//rdf:Description[matches(@rdf:about, 'supergroup/[0-9]+$')]"
group-by="@rdf:about">
<xsl:sort select="@rdf:about"/>
<skos:hasTopConcept
rdf:resource="http://www.eionet.europa.eu/gemet/{@rdf:about}"/>
</xsl:for-each-group>
</xsl:when>
<xsl:when test="$withThemes">
<skos:hasTopConcept
rdf:resource="http://www.eionet.europa.eu/gemet/themes"/>
<xsl:for-each-group
select="//rdf:Description[matches(@rdf:about, 'theme/[0-9]+$')]"
group-by="@rdf:about">
<xsl:sort select="@rdf:about"/>
<skos:hasTopConcept
rdf:resource="http://www.eionet.europa.eu/gemet/{@rdf:about}"/>
</xsl:for-each-group>
</xsl:when>
<xsl:otherwise>
<!-- All concept with no broader term -->
<xsl:for-each
select="$skoscore//skos:Concept[matches(@rdf:about, 'concept/[0-9]+$') and not(skos:broader)]">
<xsl:sort select="@rdf:about"/>
<skos:hasTopConcept
rdf:resource="http://www.eionet.europa.eu/gemet/{@rdf:about}"/>
</xsl:for-each>
</xsl:otherwise>
</xsl:choose>
</skos:ConceptScheme>
</xsl:template>
<!-- Based on gemet-backbone.rdf -->
<xsl:template match="/">
<rdf:RDF>
<xsl:call-template name="header"/>
<xsl:if test="$withGroup">
<xsl:comment>GEMET supergroups</xsl:comment>
<xsl:text>
</xsl:text>
<skos:Concept rdf:about="http://www.eionet.europa.eu/gemet/supergroups">
<xsl:for-each select="$locales//locale">
<skos:prefLabel xml:lang="{{.}}">GEMET super groups</skos:prefLabel>
</xsl:for-each>
</skos:Concept>
<xsl:for-each
select="//rdf:Description[matches(@rdf:about, 'supergroup/[0-9]+$')]">
<xsl:sort select="@rdf:about"/>
<xsl:variable name="id" select="@rdf:about"/>
<skos:Concept rdf:about="http://www.eionet.europa.eu/gemet/{$id}">
<xsl:for-each
select="$lang//rdf:Description[@rdf:about = $id]">
<xsl:variable name="l" select="../@xml:lang"/>
<xsl:if
test="normalize-space(rdfs:label) != ''">
<xsl:element name="skos:prefLabel">
<xsl:attribute name="xml:lang">
<xsl:value-of select="$l"/>
</xsl:attribute>
<xsl:value-of select="rdfs:label"/>
</xsl:element>
</xsl:if>
</xsl:for-each>
<!-- Search groups -->
<xsl:for-each
select="//gemet:subGroupOf/rdf:Description[@rdf:about = $id]/skos:member/@rdf:resource">
<skos:narrower
rdf:resource="http://www.eionet.europa.eu/gemet/{.}"/>
</xsl:for-each>
<skos:broader rdf:resource="http://www.eionet.europa.eu/gemet/supergroups"/>
</skos:Concept>
</xsl:for-each>
<xsl:comment>GEMET groups</xsl:comment>
<xsl:text>
</xsl:text>
<xsl:for-each-group
select="//rdf:Description[matches(@rdf:about, 'group/[0-9]+$')]"
group-by="@rdf:about">
<xsl:sort select="@rdf:about"/>
<xsl:variable name="id" select="@rdf:about"/>
<skos:Concept rdf:about="http://www.eionet.europa.eu/gemet/{$id}">
<xsl:for-each
select="$lang//rdf:Description[@rdf:about = $id]">
<xsl:variable name="l" select="../@xml:lang"/>
<xsl:if
test="normalize-space(rdfs:label) != ''">
<xsl:element name="skos:prefLabel">
<xsl:attribute name="xml:lang">
<xsl:value-of select="$l"/>
</xsl:attribute>
<xsl:value-of select="rdfs:label"/>
</xsl:element>
</xsl:if>
</xsl:for-each>
<!-- Search groups -->
<xsl:for-each
select="//rdf:Description[@rdf:about = $id]/gemet:subGroupOf/rdf:Description/@rdf:about">
<skos:broader
rdf:resource="http://www.eionet.europa.eu/gemet/{.}"/>
</xsl:for-each>
<!-- Search term -->
<xsl:for-each
select="//gemet:group/rdf:Description[@rdf:about = $id]/skos:member/@rdf:resource[starts-with(., 'concept')]">
<skos:narrower
rdf:resource="http://www.eionet.europa.eu/gemet/{.}"/>
</xsl:for-each>
</skos:Concept>
</xsl:for-each-group>
</xsl:if>
<xsl:if test="$withThemes">
<xsl:comment>GEMET themes</xsl:comment>
<skos:Concept rdf:about="http://www.eionet.europa.eu/gemet/themes">
<xsl:for-each select="$locales//locale">
<skos:prefLabel xml:lang="{.}">GEMET themes</skos:prefLabel>
</xsl:for-each>
</skos:Concept>
<xsl:for-each-group
select="//rdf:Description[matches(@rdf:about, 'theme/[0-9]+$')]"
group-by="@rdf:about">
<xsl:sort select="@rdf:about"/>
<xsl:variable name="id" select="@rdf:about"/>
<skos:Concept rdf:about="http://www.eionet.europa.eu/gemet/{$id}">
<xsl:for-each
select="$lang//rdf:Description[@rdf:about = $id]">
<xsl:variable name="l" select="../@xml:lang"/>
<xsl:if
test="normalize-space(rdfs:label) != ''">
<xsl:element name="skos:prefLabel">
<xsl:attribute name="xml:lang">
<xsl:value-of select="$l"/>
</xsl:attribute>
<xsl:value-of select="rdfs:label"/>
</xsl:element>
</xsl:if>
</xsl:for-each>
<xsl:if test="$withGroup">
<xsl:for-each select="//gemet:subGroupOf/rdf:Description/@rdf:about">
<skos:broader rdf:resource="http://www.eionet.europa.eu/gemet/{.}"/>
</xsl:for-each>
</xsl:if>
<skos:broader rdf:resource="http://www.eionet.europa.eu/gemet/themes"/>
<!-- Search term -->
<xsl:for-each
select="$root//rdf:Description[gemet:theme/rdf:Description/@rdf:about = $id][starts-with(@rdf:about, 'concept')]">
<skos:narrower
rdf:resource="http://www.eionet.europa.eu/gemet/{@rdf:about}"/>
</xsl:for-each>
</skos:Concept>
</xsl:for-each-group>
</xsl:if>
<xsl:comment>GEMET concepts</xsl:comment>
<xsl:text>
</xsl:text>
<xsl:for-each
select="//rdf:Description[matches(@rdf:about, 'concept/[0-9]+$')]">
<xsl:sort select="@rdf:about"/>
<xsl:variable name="id" select="@rdf:about"/>
<skos:Concept rdf:about="http://www.eionet.europa.eu/gemet/{$id}">
<xsl:for-each
select="$lang//rdf:Description[@rdf:about = $id]">
<xsl:variable name="l" select="../@xml:lang"/>
<xsl:if
test="normalize-space(skos:prefLabel) != ''">
<xsl:element name="skos:prefLabel">
<xsl:attribute name="xml:lang">
<xsl:value-of select="$l"/>
</xsl:attribute>
<xsl:value-of select="skos:prefLabel"/>
</xsl:element>
</xsl:if>
<xsl:if test="normalize-space(skos:definition) != '' or
normalize-space(skos:scopeNote) != ''">
<xsl:element name="skos:scopeNote">
<xsl:attribute name="xml:lang">
<xsl:value-of select="$l"/>
</xsl:attribute>
<xsl:value-of select="skos:definition|skos:scopeNote"/>
</xsl:element>
</xsl:if>
</xsl:for-each>
<xsl:if test="$withGroup">
<xsl:for-each select="gemet:group/rdf:Description/@rdf:about">
<skos:broader
rdf:resource="http://www.eionet.europa.eu/gemet/{.}"/>
</xsl:for-each>
</xsl:if>
<xsl:if test="$withThemes">
<xsl:for-each select="gemet:theme/rdf:Description/@rdf:about">
<skos:broader
rdf:resource="http://www.eionet.europa.eu/gemet/{.}"/>
</xsl:for-each>
</xsl:if>
<xsl:for-each select="$skoscore//skos:Concept[@rdf:about = $id]/
*[local-name() = 'narrower' or
local-name() = 'broader' or
local-name() = 'related']">
<xsl:copy>
<xsl:attribute name="rdf:resource"
select="concat('http://www.eionet.europa.eu/gemet/', @rdf:resource)"/>
</xsl:copy>
</xsl:for-each>
</skos:Concept>
</xsl:for-each>
</rdf:RDF>
</xsl:template>
</xsl:stylesheet>