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package com.sun.enterprise.config.serverbeans.validation;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.Writer;
import org.iso_relax.verifier.Verifier;
import org.iso_relax.verifier.VerifierConfigurationException;
import org.iso_relax.verifier.VerifierFactory;
import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.XMLReader;
import java.io.InputStream;
import org.xml.sax.EntityResolver;
import java.io.OutputStreamWriter;
class RNGValidator
{
void validate(InputSource schema, InputSource src, Writer w) throws VerifierConfigurationException, SAXException, IOException{
validate(schema, src, new MyErrorHandler(w));
}
void validate(InputSource schema, InputSource src, XMLReader rdr, Writer w) throws VerifierConfigurationException, SAXException, IOException{
validate(schema, src, rdr, new MyErrorHandler(w) );
}
void validate(InputSource schema, InputSource src, ErrorHandler eh) throws VerifierConfigurationException, SAXException, IOException{
getVerifier(schema, eh).verify(src);
}
/**
* Validate the given source against the given schema, using
* the given reader to parser the source, handling errors
* using the given {@link ErrorHandler}
* @param schema the RELAX NG schema to be used to validate
* the source document
* @param src the source document to be validated
* @param rdr the reader used to parse the source document
* @param errorHandler used to handle errors during the parse
* and validation
* @throws VerifierConfigurationException if the verifier
* cannot be configured
* @throws SAXException if there's a fatal exception from the
* SAX layer
* @throws IOException if the IO fails
*/
void validate(InputSource schema, InputSource src, XMLReader rdr, ErrorHandler errorHandler) throws VerifierConfigurationException, SAXException, IOException{
rdr.setContentHandler(getVerifier(schema, rdr.getEntityResolver(), errorHandler).getVerifierHandler());
rdr.parse(src);
}
private Verifier getVerifier(InputSource schema, ErrorHandler eh)
throws VerifierConfigurationException, SAXException, IOException {
return getVerifier(schema, null, eh);
}
private Verifier getVerifier(InputSource schema, EntityResolver er, ErrorHandler eh)
throws VerifierConfigurationException, SAXException, IOException {
// As of the 20030108 release of jarv this method doesn't
// work. The new release added a class loader and that
// seems to screw things up.
// final VerifierFactory f =
// VerifierFactory.newInstance("http://relaxng.org/ns/structure/1.0");
final VerifierFactory f = new com.sun.msv.verifier.jarv.TheFactoryImpl();
final Verifier verifier = f.newVerifier(schema);
verifier.setErrorHandler(eh);
verifier.setEntityResolver(er);
return verifier;
}
private static class MyErrorHandler implements ErrorHandler
{
private PrintWriter out;
MyErrorHandler(Writer out) {
this.out = new PrintWriter(out);
}
/**
* Returns a string describing parse exception details
*/
private String getParseExceptionInfo(SAXParseException spe) {
String systemId = spe.getSystemId();
if (systemId == null) {
systemId = "null";
}
String info = "URI=" + systemId +
" Line=" + spe.getLineNumber() +
": " + spe.getMessage();
return info;
}
// The following methods are standard SAX ErrorHandler methods.
// See SAX documentation for more info.
public void warning(SAXParseException spe) throws SAXException {
out.println("Warning: " + getParseExceptionInfo(spe));
}
public void error(SAXParseException spe) throws SAXException {
String message = "Error: " + getParseExceptionInfo(spe);
out.println(message);
}
public void fatalError(SAXParseException spe) throws SAXException {
String message = "Fatal Error: " + getParseExceptionInfo(spe);
throw new SAXException(message);
}
}
}