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package nokogiri;
import static nokogiri.internals.NokogiriHelpers.getNokogiriClass;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;
import javax.xml.transform.Source;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import org.iso_relax.verifier.Schema;
import org.iso_relax.verifier.Verifier;
import org.iso_relax.verifier.VerifierConfigurationException;
import org.iso_relax.verifier.VerifierFactory;
import org.jruby.Ruby;
import org.jruby.RubyClass;
import org.jruby.anno.JRubyClass;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;
import org.w3c.dom.Document;
import org.xml.sax.ErrorHandler;
import org.xml.sax.SAXException;
/**
* Class for Nokogiri::XML::RelaxNG
*
* @author sergio
* @author Yoko Harada <yokolet@gmail.com>
*/
@JRubyClass(name = "Nokogiri::XML::RelaxNG", parent = "Nokogiri::XML::Schema")
public class XmlRelaxng extends XmlSchema
{
private Verifier verifier;
public
XmlRelaxng(Ruby ruby, RubyClass klazz)
{
super(ruby, klazz);
}
private void
setVerifier(Verifier verifier)
{
this.verifier = verifier;
}
static XmlSchema
createSchemaInstance(ThreadContext context, RubyClass klazz, Source source, IRubyObject parseOptions)
{
Ruby runtime = context.getRuntime();
XmlRelaxng xmlRelaxng = (XmlRelaxng) NokogiriService.XML_RELAXNG_ALLOCATOR.allocate(runtime, klazz);
if (parseOptions == null) {
parseOptions = defaultParseOptions(context.getRuntime());
}
xmlRelaxng.setInstanceVariable("@errors", runtime.newEmptyArray());
xmlRelaxng.setInstanceVariable("@parse_options", parseOptions);
try {
Schema schema = xmlRelaxng.getSchema(source, context);
xmlRelaxng.setVerifier(schema.newVerifier());
return xmlRelaxng;
} catch (VerifierConfigurationException ex) {
throw context.getRuntime().newRuntimeError("Could not parse document: " + ex.getMessage());
}
}
private Schema
getSchema(Source source, ThreadContext context)
{
InputStream is;
VerifierFactory factory = new com.thaiopensource.relaxng.jarv.VerifierFactoryImpl();
if (source instanceof StreamSource) {
StreamSource ss = (StreamSource)source;
is = ss.getInputStream();
} else { //if (this.source instanceof DOMSource)
DOMSource ds = (DOMSource)source;
StringWriter xmlAsWriter = new StringWriter();
StreamResult result = new StreamResult(xmlAsWriter);
try {
TransformerFactory.newInstance().newTransformer().transform(ds, result);
} catch (TransformerConfigurationException ex) {
throw context.getRuntime()
.newRuntimeError("Could not parse document: " + ex.getMessage());
} catch (TransformerException ex) {
throw context.getRuntime()
.newRuntimeError("Could not parse document: " + ex.getMessage());
}
try {
is = new ByteArrayInputStream(xmlAsWriter.toString().getBytes("UTF-8"));
} catch (UnsupportedEncodingException ex) {
throw context.getRuntime()
.newRuntimeError("Could not parse document: " + ex.getMessage());
}
}
try {
return factory.compileSchema(is);
} catch (VerifierConfigurationException ex) {
throw context.getRuntime()
.newRuntimeError("Could not parse document: " + ex.getMessage());
} catch (SAXException ex) {
throw context.getRuntime()
.newRuntimeError("Could not parse document: " + ex.getMessage());
} catch (IOException ex) {
throw context.getRuntime().newIOError(ex.getClass() + ": " + ex.getMessage());
}
}
@Override
protected void
setErrorHandler(ErrorHandler errorHandler)
{
verifier.setErrorHandler(errorHandler);
}
@Override
protected void
validate(Document document) throws SAXException, IOException
{
verifier.verify(document);
}
}
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