Examples with SAXNotRecognizedException org.xml.sax.SAXNotRecognizedException used on opensource projects

Example 16 with SAXNotRecognizedException

use of org.xml.sax.SAXNotRecognizedException in project drools by kiegroup.

the class ExtensibleXmlParser method read.

/**
 * Read a <code>RuleSet</code> from an <code>InputSource</code>.
 *
 * @param in
 *            The rule-set input-source.
 *
 * @return The rule-set.
 * @throws ParserConfigurationException
 */
public Object read(final InputSource in) throws SAXException, IOException {
    if (this.docFragment == null) {
        DocumentBuilderFactory f;
        try {
            f = DocumentBuilderFactory.newInstance();
        } catch (FactoryConfigurationError e) {
            // http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4633368
            try {
                f = (DocumentBuilderFactory) Class.forName("org.apache.xerces.jaxp.DocumentBuilderFactoryImpl").newInstance();
            } catch (Exception e1) {
                throw new RuntimeException("Unable to create new DOM Document", e1);
            }
        } catch (Exception e) {
            throw new RuntimeException("Unable to create new DOM Document", e);
        }
        // XXE protection start
        try {
            f.setFeature("http://xml.org/sax/features/external-general-entities", false);
            f.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
        } catch (ParserConfigurationException e) {
            logger.warn("Unable to set parser features due to {}", e.getMessage());
        }
        // XXE protection end
        try {
            this.document = f.newDocumentBuilder().newDocument();
        } catch (Exception e) {
            throw new RuntimeException("Unable to create new DOM Document", e);
        }
        this.docFragment = this.document.createDocumentFragment();
    }
    SAXParser localParser = null;
    if (this.parser == null) {
        SAXParserFactory factory = null;
        try {
            factory = SAXParserFactory.newInstance();
        } catch (FactoryConfigurationError e) {
            // http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4633368
            try {
                factory = (SAXParserFactory) Class.forName("org.apache.xerces.jaxp.SAXParserFactoryImpl").newInstance();
            } catch (Exception e1) {
                throw new RuntimeException("Unable to create new DOM Document", e1);
            }
        } catch (Exception e) {
            throw new RuntimeException("Unable to create new DOM Document", e);
        }
        factory.setNamespaceAware(true);
        // XXE protection start
        try {
            factory.setFeature("http://xml.org/sax/features/external-general-entities", false);
            factory.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
        } catch (ParserConfigurationException e) {
            logger.warn("Unable to set parser features due to {}", e.getMessage());
        }
        if (System.getProperty("drools.schema.validating") != null) {
            this.isValidating = Boolean.getBoolean("drools.schema.validating");
        }
        if (this.isValidating == true) {
            factory.setValidating(true);
            try {
                localParser = factory.newSAXParser();
            } catch (final ParserConfigurationException e) {
                throw new RuntimeException(e.getMessage());
            }
            try {
                localParser.setProperty(ExtensibleXmlParser.JAXP_SCHEMA_LANGUAGE, ExtensibleXmlParser.W3C_XML_SCHEMA);
            } catch (final SAXNotRecognizedException e) {
                boolean hideWarnings = Boolean.getBoolean("drools.schema.hidewarnings");
                if (!hideWarnings) {
                    logger.warn("Your SAX parser is not JAXP 1.2 compliant - turning off validation.");
                }
                localParser = null;
            }
        }
        if (localParser == null) {
            // not jaxp1.2 compliant so turn off validation
            try {
                this.isValidating = false;
                factory.setValidating(this.isValidating);
                localParser = factory.newSAXParser();
            } catch (final ParserConfigurationException e) {
                throw new RuntimeException(e.getMessage());
            }
        }
    } else {
        localParser = this.parser;
    }
    if (!localParser.isNamespaceAware()) {
        throw new RuntimeException("parser must be namespace-aware");
    }
    localParser.parse(in, this);
    return this.data;
}