Examples with TransformerHandler javax.xml.transform.sax.TransformerHandler used on opensource projects

Example 26 with TransformerHandler

use of javax.xml.transform.sax.TransformerHandler in project jackrabbit by apache.

the class SerializingContentHandler method needsXmlnsAttributes.

/**
     * Probes the available XML serializer for xmlns support. Used to set
     * the value of the {@link #NEEDS_XMLNS_ATTRIBUTES} flag.
     *
     * @return whether the XML serializer needs explicit xmlns attributes
     */
private static boolean needsXmlnsAttributes() {
    try {
        StringWriter writer = new StringWriter();
        TransformerHandler probe = FACTORY.newTransformerHandler();
        probe.setResult(new StreamResult(writer));
        probe.startDocument();
        probe.startPrefixMapping("p", "uri");
        probe.startElement("uri", "e", "p:e", new AttributesImpl());
        probe.endElement("uri", "e", "p:e");
        probe.endPrefixMapping("p");
        probe.endDocument();
        return writer.toString().indexOf("xmlns") == -1;
    } catch (Exception e) {
        throw new UnsupportedOperationException("XML serialization fails");
    }
}

Example 27 with TransformerHandler

use of javax.xml.transform.sax.TransformerHandler in project jackrabbit by apache.

the class SerializingContentHandler method getSerializer.

/**
     * Creates a serializing content handler that writes to the given result.
     *
     * @param result serialization target
     * @return serializing content handler
     * @throws SAXException if the content handler could not be initialized
     */
public static DefaultHandler getSerializer(Result result) throws SAXException {
    try {
        TransformerHandler handler = FACTORY.newTransformerHandler();
        handler.setResult(result);
        // Specify the output properties to avoid surprises especially in
        // character encoding or the output method (might be html for some
        // documents!)
        Transformer transformer = handler.getTransformer();
        transformer.setOutputProperty(OutputKeys.METHOD, "xml");
        transformer.setOutputProperty(OutputKeys.ENCODING, ENCODING);
        transformer.setOutputProperty(OutputKeys.INDENT, "no");
        if (NEEDS_XMLNS_ATTRIBUTES) {
            // so we need to do it explicitly with this wrapper
            return new SerializingContentHandler(handler);
        } else {
            return new DefaultContentHandler(handler);
        }
    } catch (TransformerConfigurationException e) {
        throw new SAXException("Failed to initialize XML serializer", e);
    }
}

Example 28 with TransformerHandler

use of javax.xml.transform.sax.TransformerHandler in project jackrabbit by apache.

the class ResultHelper method needsXmlnsAttributes.

/**
     * Probes the available XML serializer for xmlns support. Used to set
     * the value of the {@link #NEEDS_XMLNS_ATTRIBUTES} flag.
     *
     * @return whether the XML serializer needs explicit xmlns attributes
     */
private static boolean needsXmlnsAttributes() {
    try {
        StringWriter writer = new StringWriter();
        TransformerHandler probe = FACTORY.newTransformerHandler();
        probe.setResult(new StreamResult(writer));
        probe.startDocument();
        probe.startPrefixMapping("p", "uri");
        probe.startElement("uri", "e", "p:e", new AttributesImpl());
        probe.endElement("uri", "e", "p:e");
        probe.endPrefixMapping("p");
        probe.endDocument();
        return writer.toString().indexOf("xmlns") == -1;
    } catch (Exception e) {
        throw new UnsupportedOperationException("XML serialization fails");
    }
}

Example 29 with TransformerHandler

use of javax.xml.transform.sax.TransformerHandler in project jackrabbit by apache.

the class ResultHelper method getResult.

/**
     * In case the underlying XML library doesn't properly handle xmlns attributes
     * this method creates new content handler dealing with the misbehavior and
     * returns an new instance of SAXResult. Otherwise the passed result
     * is returned back.
     *
     * @param result
     * @return A instance of <code>Result</code> that properly handles xmlns attributes.
     * @throws SAXException
     */
public static Result getResult(Result result) throws SAXException {
    try {
        TransformerHandler handler = FACTORY.newTransformerHandler();
        handler.setResult(result);
        // Specify the output properties to avoid surprises especially in
        // character encoding or the output method (might be html for some
        // documents!)
        Transformer transformer = handler.getTransformer();
        transformer.setOutputProperty(OutputKeys.METHOD, "xml");
        transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
        transformer.setOutputProperty(OutputKeys.INDENT, "no");
        if (NEEDS_XMLNS_ATTRIBUTES) {
            // so we need to do it explicitly with this wrapper
            return new SAXResult(new SerializingContentHandler(handler));
        } else {
            return result;
        }
    } catch (TransformerConfigurationException e) {
        throw new SAXException("Failed to initialize XML serializer", e);
    }
}

Example 30 with TransformerHandler

use of javax.xml.transform.sax.TransformerHandler in project jackrabbit-oak by apache.

the class HtmlRepresentation method startResponse.

private XHTMLContentHandler startResponse(HttpServletResponse response, String title) throws IOException {
    try {
        response.setContentType("text/html");
        response.setCharacterEncoding("UTF-8");
        SAXTransformerFactory factory = (SAXTransformerFactory) SAXTransformerFactory.newInstance();
        TransformerHandler handler = factory.newTransformerHandler();
        Transformer transformer = handler.getTransformer();
        transformer.setOutputProperty(OutputKeys.METHOD, "html");
        transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
        handler.setResult(new StreamResult(response.getOutputStream()));
        Metadata metadata = new Metadata();
        metadata.set(Metadata.TITLE, title);
        return new XHTMLContentHandler(handler, metadata);
    } catch (TransformerConfigurationException e) {
        throw new IOException(e);
    }
}