private void nodeSetMinusCommentNodes()

in src/main/java/org/apache/xml/security/signature/reference/ReferenceSubTreeData.java [131:177]
45 lines of code
15 McCabe index (conditional complexity)

        private void nodeSetMinusCommentNodes(Node node, List<Node> nodeSet,
                                              Node prevSibling)
        {
            switch (node.getNodeType()) {
                case Node.ELEMENT_NODE :
                    nodeSet.add(node);
                    NamedNodeMap attrs = node.getAttributes();
                    if (attrs != null) {
                        for (int i = 0, len = attrs.getLength(); i < len; i++) {
                            nodeSet.add(attrs.item(i));
                        }
                    }
                    Node pSibling = null;
                    for (Node child = node.getFirstChild(); child != null;
                        child = child.getNextSibling()) {
                        nodeSetMinusCommentNodes(child, nodeSet, pSibling);
                        pSibling = child;
                    }
                    break;
                case Node.DOCUMENT_NODE :
                    pSibling = null;
                    for (Node child = node.getFirstChild(); child != null;
                        child = child.getNextSibling()) {
                        nodeSetMinusCommentNodes(child, nodeSet, pSibling);
                        pSibling = child;
                    }
                    break;
                case Node.TEXT_NODE :
                case Node.CDATA_SECTION_NODE:
                    // emulate XPath which only returns the first node in
                    // contiguous text/cdata nodes
                    if (prevSibling != null &&
                        (prevSibling.getNodeType() == Node.TEXT_NODE ||
                         prevSibling.getNodeType() == Node.CDATA_SECTION_NODE)) {
                        return;
                    }
                    nodeSet.add(node);
                    break;
                case Node.PROCESSING_INSTRUCTION_NODE :
                    nodeSet.add(node);
                    break;
                case Node.COMMENT_NODE:
                    if (withComments) {
                        nodeSet.add(node);
                    }
            }
        }