public static void readDocElements()

in src/main/java/org/apache/neethi/builders/converters/StaxToDOMConverter.java [59:138]
72 lines of code
21 McCabe index (conditional complexity)

    public static void readDocElements(Document doc, Node parent,
                                       XMLStreamReader reader)
        throws XMLStreamException {
        
        Deque<Node> stack = new ArrayDeque<Node>();
        int event = reader.getEventType();
        while (reader.hasNext()) {
            switch (event) {
            case XMLStreamConstants.START_ELEMENT: {
                Element e = doc.createElementNS(reader.getNamespaceURI(), reader.getLocalName());
                if (reader.getPrefix() != null) {
                    e.setPrefix(reader.getPrefix());
                }       
                e = (Element)parent.appendChild(e);

                for (int ns = 0; ns < reader.getNamespaceCount(); ns++) {
                    String uri = reader.getNamespaceURI(ns);
                    String prefix = reader.getNamespacePrefix(ns);

                    declare(e, uri, prefix);
                }

                for (int att = 0; att < reader.getAttributeCount(); att++) {
                    String name = reader.getAttributeLocalName(att);
                    String prefix = reader.getAttributePrefix(att);
                    if (prefix != null && prefix.length() > 0) {
                        name = prefix + ":" + name;
                    }

                    Attr attr = doc.createAttributeNS(reader.getAttributeNamespace(att), name);
                    attr.setValue(reader.getAttributeValue(att));
                    e.setAttributeNode(attr);
                }


                stack.push(parent);
                parent = e;
                break;
            }
            case XMLStreamConstants.END_ELEMENT:
                if (stack.isEmpty()) {
                    return;
                }
                parent = stack.pop();
                if (parent instanceof Document) {
                    return;
                }
                break;
            case XMLStreamConstants.NAMESPACE:
                break;
            case XMLStreamConstants.ATTRIBUTE:
                break;
            case XMLStreamConstants.CHARACTERS:
                if (parent != null) {
                    parent.appendChild(doc.createTextNode(reader.getText()));
                }
                break;
            case XMLStreamConstants.COMMENT:
                if (parent != null) {
                    parent.appendChild(doc.createComment(reader.getText()));
                }
                break;
            case XMLStreamConstants.CDATA:
                parent.appendChild(doc.createCDATASection(reader.getText()));
                break;
            case XMLStreamConstants.PROCESSING_INSTRUCTION:
                parent.appendChild(doc.createProcessingInstruction(reader.getPITarget(), reader.getPIData()));
                break;
            case XMLStreamConstants.ENTITY_REFERENCE:
                parent.appendChild(doc.createProcessingInstruction(reader.getPITarget(), reader.getPIData()));
                break;
            default:
                break;
            }

            if (reader.hasNext()) {
                event = reader.next();
            }
        }
    }