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<?xml version="1.0"?>
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<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0" xmlns:eml="eml://ecoinformatics.org/eml-2.1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" >
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<xsl:output method="xml" indent="yes"/>
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<xsl:strip-space elements="*"/>
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<xsl:template match="/* ">
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<!--handle top level element-->
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<xsl:element name="eml:eml">
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<xsl:copy-of select="@*"/>
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<xsl:attribute name="xsi:schemaLocation">eml://ecoinformatics.org/eml-2.1.0 eml.xsd</xsl:attribute>
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<!-- move the access sub tree to top level-->
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<xsl:apply-templates mode="copy-top-access-tree" select="/*/dataset/access"/>
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<xsl:apply-templates mode="copy-top-access-tree" select="/*/citation/access"/>
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<xsl:apply-templates mode="copy-top-access-tree" select="/*/software/access"/>
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<xsl:apply-templates mode="copy-top-access-tree" select="/*/protocol/access"/>
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<xsl:for-each select="/*/*">
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<xsl:choose>
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<xsl:when test="name()='dataset'">
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<xsl:element name="{name(.)}" namespace="{namespace-uri(.)}">
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<xsl:copy-of select="@*"/>
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<xsl:apply-templates mode="handle-elements-under-main-module" select="."/>
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</xsl:element>
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</xsl:when>
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<xsl:when test="name()='citation'">
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<xsl:element name="{name(.)}" namespace="{namespace-uri(.)}">
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<xsl:copy-of select="@*"/>
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<xsl:apply-templates mode="handle-elements-under-main-module" select="."/>
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</xsl:element>
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</xsl:when>
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<xsl:when test="name()='software'">
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<xsl:element name="{name(.)}" namespace="{namespace-uri(.)}">
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<xsl:copy-of select="@*"/>
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<xsl:apply-templates mode="handle-elements-under-main-module" select="."/>
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</xsl:element>
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</xsl:when>
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<xsl:when test="name()='protocol'">
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<xsl:element name="{name(.)}" namespace="{namespace-uri(.)}">
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<xsl:copy-of select="@*"/>
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<xsl:apply-templates mode="handle-elements-under-main-module" select="."/>
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</xsl:element>
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</xsl:when>
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<xsl:when test="name()='additionalMetadata'">
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<xsl:apply-templates mode="handle-additionalMetadata" select="."/>
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</xsl:when>
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</xsl:choose>
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</xsl:for-each>
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</xsl:element>
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</xsl:template>
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<!-- handle make changes under main module (dataset, citation, protocol and software) -->
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<xsl:template mode="handle-elements-under-main-module" match="*">
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<xsl:for-each select="./*">
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<xsl:choose>
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<xsl:when test="name()='access'">
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<xsl:apply-templates mode="do-nothing" select="."/>
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</xsl:when>
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<xsl:otherwise>
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<xsl:apply-templates select="."/>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:for-each>
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</xsl:template>
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<!-- main template which will copy nodes recursively-->
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<xsl:template match="*">
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<xsl:element name="{name(.)}" namespace="{namespace-uri(.)}">
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<xsl:copy-of select="@*"/>
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<xsl:apply-templates/>
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</xsl:element>
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</xsl:template>
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<!-- fixing attributeList/attribute/measurementScale/datetime -> .../dateTime -->
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<xsl:template match="attributeList/attribute/measurementScale/datetime">
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<xsl:element name="dateTime" namespace="{namespace-uri(.)}">
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<xsl:copy-of select="@*"/>
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<xsl:apply-templates mode="copy-no-ns" select="./*"/>
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</xsl:element>
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</xsl:template>
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<!-- change the name of element form method to methods -->
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<xsl:template match="dataTable/method">
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<xsl:element name="methods" namespace="{namespace-uri(.)}">
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<xsl:copy-of select="@*"/>
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<xsl:apply-templates mode="copy-no-ns" select="./*"/>
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</xsl:element>
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</xsl:template>
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<!-- change the name of element form method to methods -->
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<xsl:template match="spatialRaster/method">
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<xsl:element name="methods" namespace="{namespace-uri(.)}">
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<xsl:copy-of select="@*"/>
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<xsl:apply-templates mode="copy-no-ns" select="./*"/>
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</xsl:element>
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</xsl:template>
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<!-- change the name of element form method to methods -->
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<xsl:template match="spatialVector/method">
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<xsl:element name="methods" namespace="{namespace-uri(.)}">
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<xsl:copy-of select="@*"/>
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<xsl:apply-templates mode="copy-no-ns" select="./*"/>
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</xsl:element>
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</xsl:template>
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<!-- change the name of element form method to methods -->
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<xsl:template match="view/method">
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<xsl:element name="methods" namespace="{namespace-uri(.)}">
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<xsl:copy-of select="@*"/>
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<xsl:apply-templates mode="copy-no-ns" select="./*"/>
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</xsl:element>
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</xsl:template>
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<!-- change the name of element form method to methods -->
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<xsl:template match="storedProcedure/method">
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<xsl:element name="methods" namespace="{namespace-uri(.)}">
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<xsl:copy-of select="@*"/>
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<xsl:apply-templates mode="copy-no-ns" select="./*"/>
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</xsl:element>
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</xsl:template>
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<!-- change the name of element form method to methods -->
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<xsl:template match="otherEntity/method">
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<xsl:element name="methods" namespace="{namespace-uri(.)}">
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<xsl:copy-of select="@*"/>
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<xsl:apply-templates mode="copy-no-ns" select="./*"/>
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</xsl:element>
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</xsl:template>
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<!-- Move the access tree of data file level from additionalMetadata part to physical/distribution or software/implementation/distribution part.
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If we find the id of physical/distribution is in aditionalMetadata/describe and it
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has sibling of access subtree, copy the subtree to physical/distribution -->
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<xsl:template match="physical/distribution | software/implementation/distribution">
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<xsl:element name="distribution" namespace="{namespace-uri(.)}">
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<xsl:copy-of select="@*"/>
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<xsl:apply-templates mode="copy-no-ns" select="./*"/>
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<!--distribution doesn't have any access node yet. Move the subtree from addtionalMetadata to distribution-->
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<!--find the id in addtionalMetacat/describes-->
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<xsl:variable name="id" select="@id"/>
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<!-- count how many additionalMetadata/access describing same distribution is -->
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<xsl:variable name="countAccessTree" select="count(/*/additionalMetadata[describes=$id]/access)"/>
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<xsl:choose>
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<xsl:when test="$countAccessTree=1">
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<!-- only has one access tree, we need copy it to distribution-->
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<xsl:apply-templates mode="copy-no-ns" select="/*/additionalMetadata[describes=$id]/access"/>
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</xsl:when>
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<xsl:when test="$countAccessTree > 1">
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<!-- has more than one access tree, we need merge them-->
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<!--This means document have two or more addtionalMetadata
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with access tree describing same distribution.
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<additionalMetadata>
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<describes>100</describe>
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<access>...</access>
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</additionalMetadata>
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<additionalMetadata>
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<describes>100</describe>
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<access>...</access>
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</additionalMetadata>-->
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<xsl:variable name="totalOrderNumber" select="count(/*/additionalMetadata[describes=$id]/access)"/>
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<xsl:variable name="totalAllowFirstNumber" select="count(/*/additionalMetadata[describes=$id]/access[@order='allowFirst'])"/>
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<xsl:variable name="totalDenyFirstNumber" select="count(/*/additionalMetadata[describes=$id]/access[@order='denyFirst'])"/>
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<xsl:choose>
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<xsl:when test="$totalOrderNumber=$totalAllowFirstNumber or $totalOrderNumber=$totalDenyFirstNumber">
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<!-- all access subtrees have same order, just merge it-->
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<xsl:element name="access">
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<xsl:copy-of select="/*/additionalMetadata[describes=$id]/access/@*"/>
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<xsl:for-each select="/*/additionalMetadata[describes=$id]/access">
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<xsl:apply-templates mode="copy-no-ns" select="./*"/>
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</xsl:for-each>
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</xsl:element>
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</xsl:when>
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<xsl:otherwise>
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<xsl:message terminate="yes">EML 2.0.1 document has more than one access subtrees in addtionalMetadata blocks describing same entity.
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However, attributes "order" have different value. It is illegitimate. Please fix the EML 2.0.1 document first.
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</xsl:message>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:when>
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</xsl:choose>
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</xsl:element>
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</xsl:template>
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<!-- copy access tree under dataset(or protocol, software and citation) to the top level -->
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<xsl:template mode="copy-top-access-tree" match="*">
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<xsl:apply-templates mode="copy-no-ns" select="."/>
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</xsl:template>
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<!-- do nothing for this element (removing it)-->
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<xsl:template mode="do-nothing" match="*">
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</xsl:template>
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<!-- copy node and children without namespace -->
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<xsl:template mode="copy-no-ns" match="*">
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<xsl:element name="{name(.)}" namespace="{namespace-uri(.)}">
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<xsl:copy-of select="@*"/>
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<xsl:apply-templates mode="copy-no-ns"/>
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</xsl:element>
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</xsl:template>
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<!--Handle additionMetadata part. Here are 4 scenarios:
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1. <additionalMetadata>
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<describes>100</describes>
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<foo>.....</foo>
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</additionalMetacata>
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The result will be (foo deosn't euqal access):
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<additionalMetadata>
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<describes>100</describes>
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<metadata><foo>.....</foo></metadata>
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</additionalMetacata>
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2. <additionalMetadata>
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<describes>100</describes>
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<describes>200</describes>
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<access>.....</access>
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</additionalMetacata>
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Both 100 and 200 are referenced ids of pysical/distribtuion or software/implementation/distribution.
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Since we moved the access part to distribution element, we don't need to keep the info.
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So the output is blank - remvoing the additionalMetadata tree.
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3. <additionalMetadata>
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<describes>300</describes>
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<describes>400</describes>
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<access>.....</access>
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</additionalMetacata>
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300 is the referenced ids of pysical/distribtuion or software/implementation/distribution.
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But 400 is not. So output will be:
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<additionalMetadata>
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<describes>400</describes>
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<metadata><access>.....</access></metadata>
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</additionalMetacata>
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And we will give an warning message: 400 is a not distribution id and the eml201 document does not follow EML pratice.
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4. <additionalMetadata>
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<access>.....</access>
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</additionalMetacata>
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Since no describes, no access tree will move. So output will be:
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<additionalMetadata>
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<metadata><access>.....</access></metadata>
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</additionalMetacata>
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And we will give an warning message:No distribution id in addtionalMetadata/describes and the eml201 document does not follow EML pratice.
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-->
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<xsl:template mode="handle-additionalMetadata" match="*">
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<!-- test if this additionalMetadata part has "access" element-->
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<xsl:variable name="accessCount" select="count(access)" />
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<xsl:choose>
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<xsl:when test="$accessCount < 1">
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<!-- no access tree here. Scenario 1 -->
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<additionalMetadata>
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<xsl:for-each select="./*">
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<xsl:choose>
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<xsl:when test="name()='describes'">
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<xsl:apply-templates mode="copy-no-ns" select="."/>
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</xsl:when>
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<xsl:otherwise>
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<metadata>
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<xsl:apply-templates mode="copy-no-ns" select="."/>
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</metadata>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:for-each>
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</additionalMetadata>
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</xsl:when>
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<xsl:otherwise>
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<!--additionalMetadata has access child-->
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<xsl:variable name="describesCount" select="count(access)" />
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<xsl:choose>
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<xsl:when test="$describesCount=0">
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<!-- scenario 4 -->
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<additionalMetadata>
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<metadata>
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<xsl:apply-templates mode="copy-no-ns" select="./*"/>
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</metadata>
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</additionalMetadata>
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<xsl:message terminate="no">additonalMetadata has access element, but doesn't have any describes element which references id of physical/distribution
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or software/implementation/distribution elements. This document doesn't follow the EML practice.
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</xsl:message>
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</xsl:when>
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<xsl:otherwise>
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<xsl:for-each select="./describes">
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<xsl:variable name="describesID" select="."/>
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<xsl:variable name="distribution" select="count(//physical/distribution[@id=$describesID] | //software/implementation/distribution[@id=$describesID] )"/>
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<xsl:if test="$distribution=0">
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<xsl:message terminate="no">We removed the access tree from additionalMetadata. However, described ID doesn't reference any distribution id</xsl:message>
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</xsl:if>
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</xsl:for-each>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:template>
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</xsl:stylesheet>
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