Re: Missing namespace for attribute defaults from SAXParser

Thank for the quick answer, Michael. Will look for a workaround then.

Patrik

Am 09.12.2016 um 14:13 schrieb Michael Glavassevich:
> Not user friendly, but working as designed. No prefix is defined for 
> attribute default values (see schema spec here [1]).
>
> Some of the more recent XML serialization APIs (LSSerializer / 
> XMLStreamWriter) are more namespace-aware and have the ability to fix 
> up namespaces during serialization.
>
> Thanks.
>
> [1] https://www.w3.org/TR/xmlschema-1/#sic-attrDefault
>
> Michael Glavassevich
> XML Technologies and WAS Development
> IBM Toronto Lab
> E-mail: [email protected]
> E-mail: [email protected]
>
> Patrik Stellmann <[email protected]> wrote on 12/09/2016 04:09:46 AM:
>
> > Hi,
> >
> > I'm using org.apache.xerces.parsers.SAXParser and when parsing a file
> > with assigned XSD the added default attributes are missing the 
> namespace
> > prefix.
> >
> > The attribute that I have set explicitly is serialized correctly. Ths,
> > I'm pretty sure it is a parser issue.
> >
> > I've added a minimal sample below.
> >
> > Is this a bug or is there any additional feature I have to activate?
> >
> > Thanks and regards,
> > Patrik
> >
> > ------------------------------------
> > java-code:
> >
> > import java.io.File;
> > import java.io.FileOutputStream;
> >
> > import javax.xml.transform.Result;
> > import javax.xml.transform.TransformerFactory;
> > import javax.xml.transform.sax.SAXTransformerFactory;
> > import javax.xml.transform.sax.TransformerHandler;
> > import javax.xml.transform.stream.StreamResult;
> >
> > import org.apache.xerces.parsers.SAXParser;
> > import org.xml.sax.InputSource;
> > import org.xml.sax.XMLReader;
> >
> > public class ParserTest {
> >
> >     public static void main (String[] args) {
> >         try {
> >             final File inputFile   = new File("input.xml");
> >             final File outputFile   = new File("output.xml");
> >
> >             final TransformerFactory tf =
> > TransformerFactory.newInstance();
> >             final SAXTransformerFactory stf = 
> (SAXTransformerFactory) tf;
> >
> >             final TransformerHandler serializer =
> > stf.newTransformerHandler();
> >
> >             XMLReader xmlSource = new SAXParser();
> >
> > 
> xmlSource.setFeature("http://apache.org/xml/features/validation/schema",
> > true);
> >
> >             Result out = new StreamResult(new
> > FileOutputStream(outputFile));
> >             serializer.setResult(out);
> >             xmlSource.setContentHandler(serializer);
> >             xmlSource.parse(new
> > InputSource(inputFile.toURI().toString()));
> >             System.out.println("Done!");
> >         } catch (Exception e) {
> >             System.err.println(e.getMessage());
> >         }
> >     }
> > }
> >
> > ------------------------------------
> > input.xml:
> > <root xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> > xsi:noNamespaceSchemaLocation="schema.xsd"
> > xmlns:ns="http://www.example.org/namespace" ns:attr1="test1"/>
> >
> > ------------------------------------
> > schema.xsd:
> > <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
> > xmlns:ns="http://www.example.org/namespace"
> > elementFormDefault="qualified">
> >      <xs:import namespace="http://www.example.org/namespace"
> > schemaLocation="namespace.xsd"/>
> >      <xs:element name="root">
> >          <xs:complexType>
> >              <xs:attribute ref="ns:attr1" default="default1"/>
> >              <xs:attribute ref="ns:attr2" default="default2"/>
> >          </xs:complexType>
> >      </xs:element>
> > </xs:schema>
> >
> > ------------------------------------
> > namespace.xsd:
> > <xs:schema targetNamespace="http://www.example.org/namespace"
> > xmlns:xs="http://www.w3.org/2001/XMLSchema">
> >      <xs:attribute name="attr1"/>
> >      <xs:attribute name="attr2"/>
> > </xs:schema>
> >
> > ------------------------------------
> > generated output.xml:
> > <root xsi:noNamespaceSchemaLocation="schema.xsd" ns:attr1="test1"
> > attr2="default2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> > xmlns:ns="http://www.example.org/namespace"/>
> >
> > (note the missing "ns:" before attr2)
> >
> >
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>