final Document doc = builder.parse(is);
            final NodeList snapshotNodeList = doc.getElementsByTagName("snapshot");
            if (snapshotNodeList.getLength() > 0) {
                final NodeList nodeList = snapshotNodeList.item(0).getChildNodes();
                for (int i = 0; i < nodeList.getLength(); i++) {
                    final Node node = nodeList.item(i);

    }

    /**
     * Appends the string representation of a {@link NodeList}.
     *
     * @param children
     *            The child nodes. Must not be {@literal null}.
     * @param buf
     *            The string buffer. Must not be {@literal null}.
     */
    public static void appendChildren(final NodeList children, final StringBuilder buf) {
        assertArgumentNotNull("children", children);

        @Override
        public Node getParentNode() {
            return null;
        }

        @Override
        public org.w3c.dom.NodeList getChildNodes() {
            return null;
        }

        @Override
        public Node getFirstChild() {
            return null;
        }

        @Override