[XERCESJ-1387] Validation of elements does not add a PSVI data

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Invalid
• Affects Version/s: 2.9.1
• Component/s: JAXP (javax.xml.validation), XML Schema API
• Environment: Java 1.6.0_10 Windows Vista Business
• Assignee: Michael Glavassevich
• Reporter: Stefan Chodnik
• Created: 28/Jul/09 14:31
• Updated: 31/Oct/09 22:28
• Resolved: 31/Oct/09 22:28

Description

Test code:
import java.io.File;
import java.io.IOException;

import javax.xml.transform.dom.DOMResult;
import javax.xml.transform.dom.DOMSource;
import javax.xml.validation.Schema;
import javax.xml.validation.SchemaFactory;
import javax.xml.validation.Validator;

import org.apache.xerces.xs.ElementPSVI;
import org.apache.xerces.xs.XSElementDeclaration;
import org.w3c.dom.DOMImplementation;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.bootstrap.DOMImplementationRegistry;
import org.xml.sax.ErrorHandler;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;

class ValidationTest {
public static final String namespace = "http://www.example.org/schema/";
private Schema schema;
private Document document;
private Validator validator;
private Element item;
private Element foo;

public static void main(String[] args)

{ System.out.println("ValidationTest start"); ValidationTest testClass = new ValidationTest(); testClass.doTest(); }

private void doTest() {
createSchema();
buildDocument();
try

{ validator.validate(new DOMSource(document), new DOMResult(document)); }

catch (SAXException e)

{ e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); }

addItemNode();
addFooNode();

}

private void addFooNode() {
foo = document.createElementNS(namespace, "foo");
item.appendChild(foo);
ElementPSVI elementPSVI;
try

{ validator.validate(new DOMSource(foo), new DOMResult(foo)); }

catch (SAXException e)

{ e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); }

elementPSVI=(ElementPSVI) foo;
XSElementDeclaration declaration = elementPSVI.getElementDeclaration();
if(declaration==null)

{ System.out.println("declaration==null //3"); }

try

{ validator.validate(new DOMSource(item), new DOMResult(item)); } catch (SAXException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); }
elementPSVI=(ElementPSVI) foo;
declaration = elementPSVI.getElementDeclaration();
if(declaration==null){ System.out.println("declaration==null //4"); }

try { validator.validate(new DOMSource(document.getDocumentElement()), new DOMResult(document.getDocumentElement())); } catch (SAXException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); }
elementPSVI=(ElementPSVI) foo;
declaration = elementPSVI.getElementDeclaration();
if(declaration==null){ System.out.println("declaration==null //5"); }

}

private void addItemNode() {
item = document.createElementNS(namespace, "item");
document.getDocumentElement().appendChild(item);
ElementPSVI elementPSVI;
try { validator.validate(new DOMSource(item), new DOMResult(item)); }

catch (SAXException e)

{ e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); }

elementPSVI=(ElementPSVI) item;
XSElementDeclaration declaration = elementPSVI.getElementDeclaration();
if(declaration==null)

{ System.out.println("declaration==null //1"); }

try

{ validator.validate(new DOMSource(document.getDocumentElement()), new DOMResult(document.getDocumentElement())); }

catch (SAXException e)

{ e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); }

elementPSVI=(ElementPSVI) item;
declaration = elementPSVI.getElementDeclaration();
if(declaration==null)

{ System.out.println("declaration==null //2"); }

}

private void createSchema() {
SchemaFactory factory = SchemaFactory
.newInstance("http://www.w3.org/2001/XMLSchema");
try {
schema = factory.newSchema(new File("schema.xsd"));
validator = schema.newValidator();
validator.setErrorHandler(new ErrorHandler() {
@Override
public void error(SAXParseException exception) throws SAXException {
}

@Override
public void fatalError(SAXParseException exception)
throws SAXException {
}

@Override
public void warning(SAXParseException exception)
throws SAXException {
}
});
} catch (SAXException e)

{ e.printStackTrace(); }
}

private void buildDocument() {
System.setProperty(DOMImplementationRegistry.PROPERTY,
"org.apache.xerces.dom.DOMXSImplementationSourceImpl");
DOMImplementationRegistry registry;

try { registry = DOMImplementationRegistry.newInstance(); DOMImplementation impl = (DOMImplementation) registry .getDOMImplementation("psvi 1.0"); document = impl.createDocument(namespace, "root", null); } catch (ClassCastException e) { e.printStackTrace(); }

catch (ClassNotFoundException e)

{ e.printStackTrace(); } catch (InstantiationException e) { e.printStackTrace(); }

catch (IllegalAccessException e)

{ e.printStackTrace(); }

}
}

Loaded schema ,file schema.xsd :
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" xmlns="http://www.example.org/schema/"
targetNamespace="http://www.example.org/schema/">
<xs:element name="root">
<xs:complexType>
<xs:sequence>
<xs:element name="item">
<xs:complexType>
<xs:sequence>
<xs:element name="foo" type="xs:string"></xs:element>
<xs:element name="bar" type="xs:string"></xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>

Compile and run commands:
javac -cp .;./xercesImpl.jar ValidationTest.java
java -cp .;./xercesImpl.jar ValidationTest

Result:

ValidationTest start
declaration==null //1
declaration==null //3
declaration==null //4

When the element is other than document element there is no information about this element declaration. Using document or documentElement to construct DOMSource and DOMResult makes it works fine.