Java Utililty Methods Swing HTML

void addToContentModels(DTD dtd, Element existing, Element alt)
Add element to a DTD.

for (Enumeration<Element> els = dtd.elementHash.elements(); els.hasMoreElements();) {
 ContentModel c = ((Element) els.nextElement()).content;
 if (c != null)
 add(c, existing, alt);

boolean containsAttribute(Element element, Object name, Object value)
contains Attribute

if (element == null) {
 return false;
Object attribute = element.getAttributes().getAttribute(name);
if (attribute == null) {
 return containsAttribute(element.getParentElement(), name, value);
return value.equals(attribute.toString());
...

Element findElementDown(final String name, final Element parent)
find the first occurrence of an Element in the element tree below a given Element

Element foundElement = null;
final ElementIterator eli = new ElementIterator(parent);
Element thisElement = eli.first();
while (thisElement != null && foundElement == null) {
 if (thisElement.getName().equalsIgnoreCase(name)) {
 foundElement = thisElement;
 thisElement = eli.next();
...

Element findElementUp(final String name1, final String name2, final Element start)
find the first occurrence of an Element in the element tree above a given Element

Element elem = start;
while (elem != null
 && !(elem.getName().equalsIgnoreCase(name1) || elem.getName().equalsIgnoreCase(name2))) {
 elem = elem.getParentElement();
return elem;

Element findLinkElementUp(Element elem)
find the next link attribute from a given element upwards through the element hierarchy

Element e = null;
Object linkAttr = null;
Object href = null;
while ((elem != null) && (linkAttr == null)) {
 e = elem;
 linkAttr = elem.getAttributes().getAttribute(HTML.Tag.A);
 if (linkAttr != null) {
 href = ((AttributeSet) linkAttr).getAttribute(HTML.Attribute.HREF);
...

Object findLinkUp(Element elem)
find the next link attribute from a given element upwards through the element hierarchy

Object linkAttr = null; 
Object href = null;
while ((elem != null) && (linkAttr == null)) {
 linkAttr = elem.getAttributes().getAttribute(HTML.Tag.A);
 if (linkAttr != null) {
 href = ((AttributeSet) linkAttr).getAttribute(HTML.Attribute.HREF);
 elem = elem.getParentElement();
...

String getHTMLFromXML(String xml, URL xsl)
Converts an XML file to a formatted HTML output via an XSLT definition.

try {
 Source xmlDoc = new StreamSource(new StringReader(xml));
 Source xslDoc = new StreamSource(xsl.openStream());
 ByteArrayOutputStream baos = new ByteArrayOutputStream();
 TransformerFactory tFactory = TransformerFactory.newInstance();
 Transformer transformer = tFactory.newTransformer(xslDoc);
 transformer.transform(xmlDoc, new StreamResult(baos));
 String html = baos.toString(StandardCharsets.UTF_8.name());
...

List getImgs(final String html)
get Imgs

final List<String> imgs = new LinkedList<String>();
if (null == html || html.isEmpty()) {
 return imgs;
final Reader r = new StringReader(html);
ParserDelegator pd = new ParserDelegator();
pd.parse(r, new HTMLEditorKit.ParserCallback() {
 public void handleSimpleTag(Tag t, MutableAttributeSet a, int pos) {
...

int getRowIndex(final Element cell)
get the row index for a given table cell

final Element thisRow = cell.getParentElement();
final Element table = thisRow.getParentElement();
int index = 0;
final int count = table.getElementCount();
Element elem = table.getElement(index);
while (!elem.equals(thisRow) && index < count) {
 elem = table.getElement(++index);
return index;

boolean hasClass(AttributeSet attr, String className)
has Class

String classValue = (String) attr.getAttribute(Attribute.CLASS);
if (classValue == null) {
 return false;
String[] classNames = classValue.split(" ");
for (String c : classNames) {
 if (c.equals(className)) {
 return true;
...