/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
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*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
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package com.sun.org.apache.xerces.internal.jaxp.validation;
import java.io.IOException;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactoryConfigurationError;
import javax.xml.transform.sax.SAXResult;
import javax.xml.transform.sax.SAXTransformerFactory;
import javax.xml.transform.sax.TransformerHandler;
import javax.xml.transform.stax.StAXResult;
import javax.xml.transform.stax.StAXSource;
import org.xml.sax.SAXException;
/**
* <p>A validator helper for <code>StAXSource</code>s.</p>
*
* @author <a href="mailto:Sunitha.Reddy@Sun.com">Sunitha Reddy</a>
*/
public final class StAXValidatorHelper implements ValidatorHelper {
/** Component manager. **/
private XMLSchemaValidatorComponentManager fComponentManager;
private Transformer identityTransformer1 = null;
private TransformerHandler identityTransformer2 = null;
private ValidatorHandlerImpl handler = null;
/** Creates a new instance of StaxValidatorHelper */
public StAXValidatorHelper(XMLSchemaValidatorComponentManager componentManager) {
fComponentManager = componentManager;
}
public void validate(Source source, Result result)
throws SAXException, IOException {
if (result == null || result instanceof StAXResult) {
if( identityTransformer1==null ) {
try {
SAXTransformerFactory tf = (SAXTransformerFactory)SAXTransformerFactory.newInstance();
identityTransformer1 = tf.newTransformer();
identityTransformer2 = tf.newTransformerHandler();
} catch (TransformerConfigurationException e) {
// this is impossible, but again better safe than sorry
throw new TransformerFactoryConfigurationError(e);
}
}
handler = new ValidatorHandlerImpl(fComponentManager);
if( result!=null ) {
handler.setContentHandler(identityTransformer2);
identityTransformer2.setResult(result);
}
try {
identityTransformer1.transform( source, new SAXResult(handler) );
} catch (TransformerException e) {
if( e.getException() instanceof SAXException )
throw (SAXException)e.getException();
throw new SAXException(e);
} finally {
handler.setContentHandler(null);
}
return;
}
throw new IllegalArgumentException(JAXPValidationMessageFormatter.formatMessage(fComponentManager.getLocale(),
"SourceResultMismatch",
new Object [] {source.getClass().getName(), result.getClass().getName()}));
}
}