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Topic  
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Karen FoxSubject: Problem Setting Variable
Author: Karen Fox
Date: 15 Apr 2008 04:38 PM
I'm trying to create a variable using the output of an xsl:choose. However, I keep getting back an empty variable. I need to validate whether a certain field in the XML document has a value from one of the two imported documents. Could someone please guide me in the right direction? I need to be able to check this variable afterward to see if it has content or not. Thank you.

Karen Fox
kfox@mitre.org

XSL:

<?xml version='1.0'?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:ucore="urn:ucore:2.0">

<xsl:variable name="eventsDoc" select="document('EventTypeList.xml')"/>
<xsl:variable name="entityDoc" select="document('EntityTypeList.xml')"/>

<xsl:template match="*">
<xsl:copy>
<xsl:copy-of select="@*"/>
<xsl:apply-templates/>
</xsl:copy>
</xsl:template>

<xsl:template match="ucore:what">
<xsl:variable name="myType" select="@value"/>
<xsl:variable name="found">
<xsl:choose>
<xsl:when test="contains($myType,'Entity')">
<xsl:for-each select="$entityDoc/EntityList/entity">
<xsl:if test="$myType=@id">
<xsl:element name="ucore:what">
<xsl:attribute name="value">
<xsl:value-of select="$myType"/>
</xsl:attribute>
</xsl:element>
</xsl:if>
</xsl:for-each>
</xsl:when>
<xsl:when test="contains($myType,'Event')">
<xsl:for-each select="$eventsDoc/EventList/event">
<xsl:if test="$myType=@id">
<xsl:element name="ucore:what">
<xsl:attribute name="value">
<xsl:value-of select="$myType"/>
</xsl:attribute>
</xsl:element>
</xsl:if>
</xsl:for-each>
</xsl:when>
<xsl:otherwise>
</xsl:otherwise>
</xsl:choose>
</xsl:variable>
<xsl:value-of select="$found"/>
</xsl:template>
</xsl:stylesheet>

Portion of XML document being transformed:

<?xml version="1.0" encoding="UTF-8"?>
<ulexpd:doPublish
xmlns:new="http://somewhere.gov/new-community"
xmlns:ulexpd="ulex:message:pd:1.0"
xmlns:ulex="ulex:message:structure:1.0"
xmlns:ulexcodes="ulex:message:codes:1.0"
xmlns:ucore="urn:ucore:2.0"
xmlns:ucore-ulex="urn:ucore:2.0:ulex-integration"
xmlns:icism="urn:us:gov:ic:ism:v2"
xmlns:ddms="http://metadata.dod.mil/mdr/ns/DDMS/1.4/"
xmlns:gml="http://www.opengis.net/gml"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
ulex:message:pd:1.0 ../import/ULEX1.0beta/xsd/ulex/ulex-publish-discover/1.0/ulex-publish-discover.xsd
ulex:message:codes:1.0 ../import/ULEX1.0beta/xsd/ulex/ulex-codes/1.0/ulex-codes.xsd
ulex:message:structure:1.0 ../import/ULEX1.0beta/xsd/ulex/ulex/1.0/ulex.xsd
urn:ucore:2.0 ../ucore.xsd
http://metadata.dod.mil/mdr/ns/DDMS/1.4/ ../import/DDMSv1.4.1/ns/DDMS/1.4.1/DDMS-v1_4_1.xsd
urn:ucore:2.0:ulex-integration ../ulex-integration/ulex-integration.xsd">
<ulex:PublishMessageContainer>
<!--======================= Message =======================-->
<ulex:PublishMessage>
<ulex:PDMessageMetadata>
<ulex:ULEXFramework>
</ulex:ULEXFramework>
<ulex:ULEXImplementation>
<ulex:ULEXImplementationVersion></ulex:ULEXImplementationVersion>
<ulex:ULEXImplementationName></ulex:ULEXImplementationName>
</ulex:ULEXImplementation>
<ulex:MessageDateTime>2001-12-17T09:30:47.0Z</ulex:MessageDateTime>
<ulex:MessageSequenceNumber>1</ulex:MessageSequenceNumber>
</ulex:PDMessageMetadata>
<!--======================= Data Submitter Metadata =======================-->
<ulex:DataSubmitterMetadata>
<ucore-ulex:SystemIdentifier>System ABC</ucore-ulex:SystemIdentifier>
<ucore-ulex:SystemContact>
<ddms:Organization>
<ddms:name>Colorado Springs Fire Department</ddms:name>
<ddms:phone>719-555-5555</ddms:phone>
<ddms:email>abc@xyz.gov</ddms:email>
</ddms:Organization>
</ucore-ulex:SystemContact>
</ulex:DataSubmitterMetadata>
<!--==================== Package ====================-->
<ulex:DataItemPackage>
<ulex:PackageMetadata>
<ulex:DataItemID>23456789</ulex:DataItemID>
<ulex:DataItemCompleteIndicator>false</ulex:DataItemCompleteIndicator>
<ulex:DataItemDate>2008-04-11</ulex:DataItemDate>
<ulex:DataItemReferenceID>23456789</ulex:DataItemReferenceID>
<ucore-ulex:DataItemStatus>Updated Vehicle Position Report</ucore-ulex:DataItemStatus>
<!--======================= Data Owner Metadata =======================-->
<ulex:DataOwnerMetadata>
<ucore-ulex:DataOwnerIdentifier>
<ddms:Organization>
<ddms:name>Colorado Springs Fire Department</ddms:name>
</ddms:Organization>
</ucore-ulex:DataOwnerIdentifier>
<ucore-ulex:DataOwnerContact>
<ddms:Organization>
<ddms:name>Colorado Springs Fire Department</ddms:name>
<ddms:phone>719-555-5555</ddms:phone>
<ddms:email>abc@xyz.gov</ddms:email>
</ddms:Organization>
</ucore-ulex:DataOwnerContact>
</ulex:DataOwnerMetadata>
<ucore-ulex:DisseminationCriteria icism:classification="U"/>
</ulex:PackageMetadata>
<!--======================= Digest =======================-->
<ucore-ulex:digest>
<ucore-ulex:metadata icism:classification="U" icism:ownerProducer="USA"/>

<!--Arrival Event-->
<ucore:Event id="Arrival">
<ucore:descriptor>"Arrival in Port"</ucore:descriptor>
<ucore:what value="Event.Planned.Today" />
<ucore:time>
<ucore:instant><ucore:dateTime>2004-04-01T06:00:00</ucore:dateTime></ucore:instant>
</ucore:time>
</ucore:Event>

<!--Vessel-->
<ucore:Entity id="ARR3232">
<ucore:descriptor>Atlantic Light</ucore:descriptor>
<ucore:what value="Entity.PhysicalObject.Conveyance.Vehicle"/>
</ucore:Entity>
</ulex:DataItemPackage>
</ulex:PublishMessage>
</ulex:PublishMessageContainer>
</ulexpd:doPublish>

Karen Fox
kfox@mitre.org

   
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