XMLUtil.java 文件源码

/** Creates a SAX parser.
 *
 * <p>See {@link #parse} for hints on setting an entity resolver.
 *
 * @param validate if true, a validating parser is returned
 * @param namespaceAware if true, a namespace aware parser is returned
 *
 * @throws FactoryConfigurationError Application developers should never need to directly catch errors of this type.
 * @throws SAXException if a parser fulfilling given parameters can not be created
 *
 * @return XMLReader configured according to passed parameters
 */
public static synchronized XMLReader createXMLReader(boolean validate, boolean namespaceAware)
throws SAXException {
    SAXParserFactory factory = saxes[validate ? 0 : 1][namespaceAware ? 0 : 1];
    if (factory == null) {
        try {
            factory = SAXParserFactory.newInstance();
        } catch (FactoryConfigurationError err) {
            Exceptions.attachMessage(
                err, 
                "Info about thread context classloader: " + // NOI18N
                Thread.currentThread().getContextClassLoader()
            );
            throw err;
        }
        factory.setValidating(validate);
        factory.setNamespaceAware(namespaceAware);
        saxes[validate ? 0 : 1][namespaceAware ? 0 : 1] = factory;
    }

    try {
        return factory.newSAXParser().getXMLReader();
    } catch (ParserConfigurationException ex) {
        throw new SAXException("Cannot create parser satisfying configuration parameters", ex); //NOI18N                        
    }
}