Question

So here’s the scenario…I have an XSD file describing all the objects that I need. I can create the objects in Java using JAXB no problem. I have an XML/RDF file that I need to parse into those objects.

What is the EASIEST way to do this?

I have been looking into Jena and have played around with it, but can’t see how to easily map the XML/RDF file to the XSD objects that were generated. Here is a snippet of the XSD file as well as the XML/RDF file:

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" 
    xmlns:a="http://langdale.com.au/2005/Message#" 
    xmlns:sawsdl="http://www.w3.org/ns/sawsdl" 
    targetNamespace="http://iec.ch/TC57/2007/profile#" 
    elementFormDefault="qualified" 
    attributeFormDefault="unqualified" 
    xmlns="http://langdale.com.au/2005/Message#" 
    xmlns:m="http://iec.ch/TC57/2007/profile#">
<xs:annotation/>
<xs:element name="Profile" type="m:Profile"/>
<xs:complexType name="Profile">
<xs:sequence>
<xs:element name="Breaker" type="m:Breaker" minOccurs="0" maxOccurs="unbounded"/>

And the XML/RDF:

<!-- CIM XML Output For switch783:(295854688) -->
<cim:Switch rdf:ID="Switch_295854688">
    <cim:IdentifiedObject.mRID>Switch_295854688</cim:IdentifiedObject.mRID>
    <cim:IdentifiedObject.aliasName>Switch_295854688</cim:IdentifiedObject.aliasName>
    <cim:ConductingEquipment.phases 
        rdf:resource="http://iec.ch/TC57/2009/CIM-schema-cim14#PhaseCode.ABC" />
    <cim:Switch.circuit2>0001406</cim:Switch.circuit2>
    <cim:Equipment.Line rdf:resource="#Line_0001406" />

Answer 1

You could iterate through the RDF statements and populate your JAXB beans via a Bean population utility like BeanUtils.

Iterate the statements in such a form that statements with the same subject are processed in a group. The rdf:type statements define which Class to instantiate and the rest can be probably mapped to properties of the created beans.

If you are familiar with Java reflection then this is probably quite straightforward.