public void setTransform()

in src/main/java/org/apache/log4j/xml/XSLTLayout.java [403:457]
42 lines of code
14 McCabe index (conditional complexity)

    public void setTransform(final Document xsltdoc)
            throws TransformerConfigurationException {
        //
        //  scan transform source for xsl:output elements
        //    and extract encoding, media (mime) type and output method
        //
        String encodingName = null;
        mediaType = null;
        String method = null;
        NodeList nodes = xsltdoc.getElementsByTagNameNS(
                XSLT_NS,
                "output");
        for(int i = 0; i < nodes.getLength(); i++) {
            Element outputElement = (Element) nodes.item(i);
            if (method == null || method.length() == 0) {
                method = outputElement.getAttributeNS(null, "method");
            }
            if (encodingName == null || encodingName.length() == 0) {
                encodingName = outputElement.getAttributeNS(null, "encoding");
            }
            if (mediaType == null || mediaType.length() == 0) {
                mediaType = outputElement.getAttributeNS(null, "media-type");
            }
        }

        if (mediaType == null || mediaType.length() == 0) {
            if ("html".equals(method)) {
                mediaType = "text/html";
            } else if ("xml".equals(method)) {
                mediaType = "text/xml";
            } else {
                mediaType = "text/plain";
            }
        }

        //
        //  if encoding was not specified,
        //     add xsl:output encoding=US-ASCII to XSLT source
        //
        if (encodingName == null || encodingName.length() == 0) {
            Element transformElement = xsltdoc.getDocumentElement();
            Element outputElement = xsltdoc.
                    createElementNS(XSLT_NS, "output");
            outputElement.setAttributeNS(null, "encoding", "US-ASCII");
            transformElement.insertBefore(outputElement, transformElement.getFirstChild());
            encoding = Charset.forName("US-ASCII");
        } else {
            encoding = Charset.forName(encodingName);
        }

        DOMSource transformSource = new DOMSource(xsltdoc);
        
        templates = transformerFactory.newTemplates(transformSource);

    }