D-Net

import java.util.List;

			/* If namespacePrefix has been already pushed to env by some custom JobNode e.g. ObtainOpenaireDataSourceParamsJobNode

			   then push it to ST. Else:

			   a) try to get it from EXTRAFIELDS of the datasource

			   b) try to get it from DATASOURCE_ORIGINAL_ID of the datasource

			   c) if any of the is present, then push to ST the datasourceId */

				List<String> namespacePrefix;

				xQuery = "/*[.//RESOURCE_IDENTIFIER/@value='" + datasourceId + "']//EXTRA_FIELDS/FIELD[./key='NamespacePrefix']/value/string()";

				namespacePrefix = lookupLocator.getService().quickSearchProfile(xQuery);

				if (namespacePrefix.size() != 0){

					st.setAttribute("namespacePrefix", namespacePrefix.get(0));

				} else {

					xQuery = "/*[.//RESOURCE_IDENTIFIER/@value='" + datasourceId + "']//DATASOURCE_ORIGINAL_ID/string()";

					namespacePrefix = lookupLocator.getService().quickSearchProfile(xQuery);

					if (namespacePrefix.size() != 0) {

						st.setAttribute("namespacePrefix", namespacePrefix.get(0));

					} else {

						st.setAttribute("namespacePrefix", datasourceId);

					}

				}

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    xmlns:datetime="http://exslt.org/dates-and-times" xmlns:exslt="http://exslt.org/common"

    xmlns:oai="http://www.openarchives.org/OAI/2.0/"

    xmlns:dnet="eu.dnetlib.miscutils.functional.xml.DnetXsltFunctions"

    exclude-result-prefixes="xsl datetime exslt dnet"

    xmlns:dri="http://www.driver-repository.eu/namespace/dri">

    <xsl:variable name="status" select="/*[local-name() = 'record']/*[local-name() = 'header']/@status" />

    <xsl:template match="/">

        <oai:record xmlns="http://namespace.openaire.eu/"

            xmlns:dc="http://purl.org/dc/elements/1.1/"

            xmlns:dr="http://www.driver-repository.eu/namespace/dr"

            xmlns:prov="http://www.openarchives.org/OAI/2.0/provenance"

            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

			<!-- Patch OAI header or create ex-novo if not oai -->

            <oai:header>

                <xsl:if test="\$status">

                    <xsl:attribute name="status" >

                        <xsl:value-of select="\$status"/>

                    </xsl:attribute>

                </xsl:if>

                <xsl:if test="not(.//dri:objIdentifier)">

                    <dri:objIdentifier><xsl:value-of select="concat('$namespacePrefix$::', dnet:md5($xpath$))"/></dri:objIdentifier>

                </xsl:if>

                <xsl:if test="not(.//dri:recordIdentifier)">

                    <dri:recordIdentifier><xsl:value-of select="$xpath$"/></dri:recordIdentifier>

                </xsl:if>

                <xsl:if test="not(.//dri:dateOfCollection)">

                    <dri:dateOfCollection><xsl:value-of select="datetime:dateTime()"/></dri:dateOfCollection>

                </xsl:if>

                <xsl:if test="not(.//dri:repositoryId)">

                    <dri:repositoryId>$datasourceId$</dri:repositoryId>

                </xsl:if>

                <xsl:if test="not(.//dri:datasourceprefix)">

                    <dri:datasourceprefix>$namespacePrefix$</dri:datasourceprefix>

                </xsl:if>

				<!-- Bulk copy of old header -->

                <xsl:for-each select="/*[local-name() = 'record']/*[local-name() = 'header']/*">

                    <xsl:copy-of select="."/>

                </xsl:for-each>

            </oai:header>

			<!-- Handle metadata block -->

            <xsl:choose>

            	<!-- If OAI then copy copy the metadata block along -->

                <xsl:when test="count(/*[local-name() = 'record']/*[local-name() = 'metadata']) &gt; 0">

                    <xsl:copy-of select="/*[local-name() = 'record']/*[local-name() = 'metadata']"/>

                </xsl:when>

                <!-- If OAI copy in bulk the metadata block -->

                <xsl:when test="\$status = 'deleted'" />

                <!-- If not-OAI copy ALL the record inside metadata block -->

                <xsl:otherwise>

                    <oai:metadata>

                        <xsl:copy-of select="."/>

                    </oai:metadata>

                </xsl:otherwise>

            </xsl:choose>

        </oai:record>

    </xsl:template>