please help me with my Java/woodstox code down below. I also provide an xsd and two xml files in my example.
Main problem
I turned on validation and would expect a validation error because
- the IDs foo1 as well as foo2 are defined twice in test2.xml,
- the ID foo is used without definition in test2.xml (unless the ID from test1.xml is taken into consideration as I would like it to happen using the XInclude), and
- the ID foo3 is used without definition in test2.xml. However, no validation problem is shown.
test.xsd
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:attributeGroup name="ATTRIBUTES_TYPE_node">
<xs:attribute name="id1" type="xs:ID" use="required"/>
<xs:attribute name="id2" type="xs:ID" use="required"/>
<xs:attribute name="idref" type="xs:IDREF" use="optional"/>
</xs:attributeGroup>
<xs:complexType name="TYPE_node">
<xs:attributeGroup ref="ATTRIBUTES_TYPE_node"/>
</xs:complexType>
<xs:complexType name="TYPE_root">
<xs:sequence>
<xs:element name="node" type="TYPE_node" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
<xs:element name="root" type="TYPE_root"/>
</xs:schema>
test1.xsd
<?xml version="1.1" encoding="utf-8"?>
<root
xmlns:vc="http://www.w3.org/2007/XMLSchema-versioning"
vc:minVersion="1.1"
vc:noNamespaceSchemaLocation="test.xsd">
<node id1="foo" id2="bar" idref="foo"/>
</root>
test2.xsd
<?xml version="1.1" encoding="utf-8"?>
<root
xmlns:vc="http://www.w3.org/2007/XMLSchema-versioning"
vc:minVersion="1.1"
xmlns:xi="http://www.w3.org/2001/XInclude"
vc:noNamespaceSchemaLocation="test.xsd">
<xi:include href="test1.xml">
<xi:fallback/>
</xi:include>
<node id1="foo1" id2="foo2" idref="foo"/>
<node id1="foo1" id2="foo2" idref="foo3"/>
</root>
Java code
XMLInputFactory xmlInputFactory = XMLInputFactory2.newInstance();
xmlInputFactory.setProperty(XMLInputFactory.IS_COALESCING, true);
xmlInputFactory.setProperty(XMLInputFactory.IS_VALIDATING, true);
xmlInputFactory.setProperty(XMLInputFactory.IS_NAMESPACE_AWARE, true);
XMLStreamReader xmlStreamReader = xmlInputFactory.createXMLStreamReader(new FileReader("src/main/resources/test2.xml"));
try {
xmlStreamReader.nextTag();
xmlStreamReader.require(XMLStreamConstants.START_ELEMENT, null, "root");
xmlStreamReader.nextTag();
while (true) {
if (xmlStreamReader.getEventType() == XMLStreamConstants.START_ELEMENT)
for (int i = 0; i < xmlStreamReader.getAttributeCount(); i++) {
System.out.println("getAttributePrefix=" + xmlStreamReader.getAttributePrefix(i));
System.out.println("getAttributeLocalName=" + xmlStreamReader.getAttributeLocalName(i));
System.out.println("getAttributeName=" + xmlStreamReader.getAttributeName(i));
System.out.println("getAttributeNamespace=" + xmlStreamReader.getAttributeNamespace(i));
System.out.println("getAttributeType=" + xmlStreamReader.getAttributeType(i));
System.out.println("getAttributeValue=" + xmlStreamReader.getAttributeValue(i));
}
xmlStreamReader.next();
}
} finally {
xmlStreamReader.close();
}
What I tried instead
Should I better use
SAXParserFactory saxParserFactory = WstxSAXParserFactory.newInstance();
instead of
XMLInputFactory xmlInputFactory = XMLInputFactory2.newInstance();
as a first step? What is the difference?
However, with this I ran into problems when setting
saxParser.setProperty("http://java.sun.com/xml/jaxp/properties/schemaLanguage","http://www.w3.org/2007/XMLSchema-versioning");
where the SAXNotSupportedException "The specified schema language is not supported." resulted.
At least there I could use
xmlReader.setErrorHandler(new SimpleErrorHandler());
to install an error handler, which I did not do in my code above.
Addon Question1
What is better for me: createXMLStreamReader or createXMLEventReader?
Addon Question2
Do I need to adjust my XSD/XML files? Especially the headers?
Addon Question3
Do I need to resolve the Xincludes before parsing/validation? If so, how?
Further Context
- Clearly, the code is in an early stage where I do not bother much about how it ends.
- I use XML1.1 because I need xml-tags with more than one ID-attribute.
- I use XInclude because I want to define my xml-files in a modular way to avoid xml-code duplications.
- Intellij does no validate my files so I am hereby trying to dig a bit deeper but I assume that the problems are unrelated as of now because here I get no validation problem whereas I get one in the other thread
- I posted (almost the same question) to the Woodstox mailing list but there is almost no activity. thread
