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package com.sun.org.apache.xerces.internal.jaxp.validation;
import java.lang.ref.SoftReference;
import java.io.IOException;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.sax.SAXTransformerFactory;
import javax.xml.transform.sax.TransformerHandler;
import javax.xml.transform.stream.StreamSource;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactoryConfigurationError;
import com.sun.org.apache.xerces.internal.impl.Constants;
import com.sun.org.apache.xerces.internal.impl.XMLErrorReporter;
import com.sun.org.apache.xerces.internal.impl.msg.XMLMessageFormatter;
import com.sun.org.apache.xerces.internal.parsers.XML11Configuration;
import com.sun.org.apache.xerces.internal.xni.XNIException;
import com.sun.org.apache.xerces.internal.xni.parser.XMLInputSource;
import com.sun.org.apache.xerces.internal.xni.parser.XMLParseException;
import com.sun.org.apache.xerces.internal.xni.parser.XMLParserConfiguration;
import org.xml.sax.SAXException;
/**
* A validator helper for StreamSources.
*
* @author Michael Glavassevich, IBM
* @author Sunitha Reddy
* @version $Id: StreamValidatorHelper.java,v 1.7 2010-11-01 04:40:08 joehw Exp $
*/
final class StreamValidatorHelper implements ValidatorHelper {
// feature identifiers
/** Feature identifier: parser settings. */
private static final String PARSER_SETTINGS =
Constants.XERCES_FEATURE_PREFIX + Constants.PARSER_SETTINGS;
// property identifiers
/** Property identifier: entity resolver. */
private static final String ENTITY_RESOLVER =
Constants.XERCES_PROPERTY_PREFIX + Constants.ENTITY_RESOLVER_PROPERTY;
/** Property identifier: error handler. */
private static final String ERROR_HANDLER =
Constants.XERCES_PROPERTY_PREFIX + Constants.ERROR_HANDLER_PROPERTY;
/** Property identifier: error reporter. */
private static final String ERROR_REPORTER =
Constants.XERCES_PROPERTY_PREFIX + Constants.ERROR_REPORTER_PROPERTY;
/** Property identifier: XML Schema validator. */
private static final String SCHEMA_VALIDATOR =
Constants.XERCES_PROPERTY_PREFIX + Constants.SCHEMA_VALIDATOR_PROPERTY;
/** Property identifier: symbol table. */
private static final String SYMBOL_TABLE =
Constants.XERCES_PROPERTY_PREFIX + Constants.SYMBOL_TABLE_PROPERTY;
/** Property identifier: validation manager. */
private static final String VALIDATION_MANAGER =
Constants.XERCES_PROPERTY_PREFIX + Constants.VALIDATION_MANAGER_PROPERTY;
//
// Data
//
/** SoftReference to parser configuration. **/
private SoftReference fConfiguration = new SoftReference(null);
/** Schema validator. **/
private com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator fSchemaValidator;
/** Component manager. **/
private XMLSchemaValidatorComponentManager fComponentManager;
private ValidatorHandlerImpl handler = null;
public StreamValidatorHelper(XMLSchemaValidatorComponentManager componentManager) {
fComponentManager = componentManager;
fSchemaValidator = (com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator) fComponentManager.getProperty(SCHEMA_VALIDATOR);
}
public void validate(Source source, Result result)
throws SAXException, IOException {
if (result == null || result instanceof StreamResult) {
final StreamSource streamSource = (StreamSource) source;
TransformerHandler identityTransformerHandler ;
if( result!=null ) {
try {
SAXTransformerFactory tf = (SAXTransformerFactory)SAXTransformerFactory.newInstance();
identityTransformerHandler = tf.newTransformerHandler();
} catch (TransformerConfigurationException e) {
throw new TransformerFactoryConfigurationError(e);
}
handler = new ValidatorHandlerImpl(fComponentManager);
handler.setContentHandler(identityTransformerHandler);
identityTransformerHandler.setResult(result);
}
XMLInputSource input = new XMLInputSource(streamSource.getPublicId(), streamSource.getSystemId(), null);
input.setByteStream(streamSource.getInputStream());
input.setCharacterStream(streamSource.getReader());
// Gets the parser configuration. We'll create and initialize a new one, if we
// haven't created one before or if the previous one was garbage collected.
XMLParserConfiguration config = (XMLParserConfiguration) fConfiguration.get();
if (config == null) {
config = initialize();
}
// If settings have changed on the component manager, refresh the error handler and entity resolver.
else if (fComponentManager.getFeature(PARSER_SETTINGS)) {
config.setProperty(ENTITY_RESOLVER, fComponentManager.getProperty(ENTITY_RESOLVER));
config.setProperty(ERROR_HANDLER, fComponentManager.getProperty(ERROR_HANDLER));
}
// prepare for parse
fComponentManager.reset();
fSchemaValidator.setDocumentHandler(handler);
try {
config.parse(input);
}
catch (XMLParseException e) {
throw Util.toSAXParseException(e);
}
catch (XNIException e) {
throw Util.toSAXException(e);
}
return;
}
throw new IllegalArgumentException(JAXPValidationMessageFormatter.formatMessage(fComponentManager.getLocale(),
"SourceResultMismatch",
new Object [] {source.getClass().getName(), result.getClass().getName()}));
}
private XMLParserConfiguration initialize() {
XML11Configuration config = new XML11Configuration();
config.setProperty(ENTITY_RESOLVER, fComponentManager.getProperty(ENTITY_RESOLVER));
config.setProperty(ERROR_HANDLER, fComponentManager.getProperty(ERROR_HANDLER));
XMLErrorReporter errorReporter = (XMLErrorReporter) fComponentManager.getProperty(ERROR_REPORTER);
config.setProperty(ERROR_REPORTER, errorReporter);
// add message formatters
if (errorReporter.getMessageFormatter(XMLMessageFormatter.XML_DOMAIN) == null) {
XMLMessageFormatter xmft = new XMLMessageFormatter();
errorReporter.putMessageFormatter(XMLMessageFormatter.XML_DOMAIN, xmft);
errorReporter.putMessageFormatter(XMLMessageFormatter.XMLNS_DOMAIN, xmft);
}
config.setProperty(SYMBOL_TABLE, fComponentManager.getProperty(SYMBOL_TABLE));
config.setProperty(VALIDATION_MANAGER, fComponentManager.getProperty(VALIDATION_MANAGER));
config.setDocumentHandler(fSchemaValidator);
config.setDTDHandler(null);
config.setDTDContentModelHandler(null);
fConfiguration = new SoftReference(config);
return config;
}
} // StreamValidatorHelper