Hi,
Hi list,
I am having a problem with my XSLT that is driving me nut.
I have the following XML file:
<rdf:RDF>
<policy:Policy rdf:ID="policy_N100CE">
<deontic:actor rdf:resource="constraint_N10101"/>
<policy:grants rdf:resource="deontic_N100D1"/>
<policy:context rdf:resource="context_N100D9"/>
</policy:Policy>
<deontic:Permission rdf:ID="deontic_N100D1">
<deontic:actor rdf:resource="constraint_N10101"/>
<deontic:action
rdf:resource="http://ontology.ihmc.us/PolicyAction.owl#AddPolicyAction"/>
<deontic:constraint rdf:resource="constraint_N100EB"/>
</deontic:Permission>
<constraint:SimpleConstriant rdf:ID="context_N100D9">
<constraint:subject
rdf:resource="urn:KAoS#AddPolicyAction-Subclass-For-Policy-0cf0108c-010f-0000-8000-0000deadbeef-For-Property-ControlInstances0"/>
<constraint:object rdf:resource="constraint_N100CE"/>
<constraint:predicate
rdf:resource="http://ontology.ihmc.us/PolicyAction.owl#involvedPolicy"/>
</constraint:SimpleConstriant>
<constraint:SimpleConstriant rdf:ID="constraint_N100CE">
<constraint:subject
rdf:resource="urn:KAoS#AddPolicyAction-Subclass-For-Policy-0cf0108c-010f-0000-8000-0000deadbeef-For-Property-ControlInstances0"/>
<constraint:object
rdf:resource="http://ontology.ihmc.us/ActionStatus.owl#Accepted"/>
<constraint:predicate
rdf:resource="http://example.lornet.sfu.ca/nkaviani/departments/objects/instances.owl#value"/>
</constraint:SimpleConstriant>
<constraint:SimpleConstriant rdf:ID="context_N100D9">
<constraint:subject
rdf:resource="urn:KAoS#AddPolicyAction-Subclass-For-Policy-0cf0108c-010f-0000-8000-0000deadbeef-For-Property-ControlInstances1"/>
<constraint:object rdf:resource="constraint_N100CE"/>
<constraint:predicate
rdf:resource="http://ontology.ihmc.us/Action.owl#hasObjectContext"/>
</constraint:SimpleConstriant>
</rdf:RDF>
and I have used the following construct to store some of the elements
in a variable based on an equality between the values of the
attributes:
<xsl:param name="contextID" select="policy:context/@rdf:resource"/>
<xsl:variable name="contexts">
<xsl:copy-of select="//constraint:SimpleConstriant[(_at_)rdf:ID =
$contextID]"/>
</xsl:variable>
apparantly the variable "contexts" has stored the relevant information
but when I try to read it, using for-each or whatever else, nothing is
displayed. so the code below is not working:
<xsl:for-each select="xalan:nodeset($contexts)">
<xsl:value-of select="constraint:SimpleConstriant/@rdf:ID"/>
</xsl:for-each>
while <xsl:copy-of select="xalan:nodeset$contexts)"/> shows that the
desired values are stored in the variable.
any help please?
thanks,
-Nima
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