SAX2DOMpublic class SAX2DOM extends Object implements LexicalHandler, Constants, ContentHandler
| Fields Summary |
|---|
| private Node | _root | | private Document | _document | | private Node | _nextSibling | | private Stack | _nodeStk | | private Vector | _namespaceDecls | | private Node | _lastSibling | | private Locator | locator | | private boolean | needToSetDocumentInfo | | static final DocumentBuilderFactory | _factoryJAXP document builder factory. Create a single instance and use
synchronization because the Javadoc is not explicit about
thread safety. |
| Constructors Summary |
|---|
public SAX2DOM()
synchronized (SAX2DOM.class) {
_document = _factory.newDocumentBuilder().newDocument();
}
_root = _document;
| public SAX2DOM(Node root, Node nextSibling)
_root = root;
if (root instanceof Document) {
_document = (Document)root;
}
else if (root != null) {
_document = root.getOwnerDocument();
}
else {
synchronized (SAX2DOM.class) {
_document = _factory.newDocumentBuilder().newDocument();
}
_root = _document;
}
_nextSibling = nextSibling;
| public SAX2DOM(Node root)
this(root, null);
|
| Methods Summary |
|---|
| public void | characters(char[] ch, int start, int length)
// Ignore text nodes of length 0
if (length == 0) {
return;
}
final Node last = (Node)_nodeStk.peek();
// No text nodes can be children of root (DOM006 exception)
if (last != _document) {
final String text = new String(ch, start, length);
if( _lastSibling != null && _lastSibling.getNodeType() == Node.TEXT_NODE ){
((Text)_lastSibling).appendData(text);
}
else if (last == _root && _nextSibling != null) {
_lastSibling = last.insertBefore(_document.createTextNode(text), _nextSibling);
}
else {
_lastSibling = last.appendChild(_document.createTextNode(text));
}
}
| | public void | comment(char[] ch, int start, int length)Lexical Handler method to create comment node in DOM tree.
final Node last = (Node)_nodeStk.peek();
Comment comment = _document.createComment(new String(ch,start,length));
if (comment != null){
if (last == _root && _nextSibling != null)
last.insertBefore(comment, _nextSibling);
else
last.appendChild(comment);
_lastSibling = comment;
}
| | public void | endCDATA()
| | public void | endDTD()
| | public void | endDocument()
_nodeStk.pop();
| | public void | endElement(java.lang.String namespace, java.lang.String localName, java.lang.String qName)
_nodeStk.pop();
_lastSibling = null;
| | public void | endEntity(java.lang.String name)
| | public void | endPrefixMapping(java.lang.String prefix)
// do nothing
| | public org.w3c.dom.Node | getDOM()
return _root;
| | public void | ignorableWhitespace(char[] ch, int start, int length)This class is only used internally so this method should never
be called.
| | public void | processingInstruction(java.lang.String target, java.lang.String data)adds processing instruction node to DOM.
final Node last = (Node)_nodeStk.peek();
ProcessingInstruction pi = _document.createProcessingInstruction(
target, data);
if (pi != null){
if (last == _root && _nextSibling != null)
last.insertBefore(pi, _nextSibling);
else
last.appendChild(pi);
_lastSibling = pi;
}
| | private void | setDocumentInfo()
//try to set document version
if (locator == null) return;
try{
_document.setXmlVersion(((Locator2)locator).getXMLVersion());
}catch(ClassCastException e){}
| | public void | setDocumentLocator(org.xml.sax.Locator locator)This class is only used internally so this method should never
be called.
this.locator = locator;
| | public void | skippedEntity(java.lang.String name)This class is only used internally so this method should never
be called.
| | public void | startCDATA()
| | public void | startDTD(java.lang.String name, java.lang.String publicId, java.lang.String systemId)
| | public void | startDocument()
_nodeStk.push(_root);
| | public void | startElement(java.lang.String namespace, java.lang.String localName, java.lang.String qName, org.xml.sax.Attributes attrs)
if (needToSetDocumentInfo) {
setDocumentInfo();
needToSetDocumentInfo = false;
}
final Element tmp = (Element)_document.createElementNS(namespace, qName);
// Add namespace declarations first
if (_namespaceDecls != null) {
final int nDecls = _namespaceDecls.size();
for (int i = 0; i < nDecls; i++) {
final String prefix = (String) _namespaceDecls.elementAt(i++);
if (prefix == null || prefix.equals(EMPTYSTRING)) {
tmp.setAttributeNS(XMLNS_URI, XMLNS_PREFIX,
(String) _namespaceDecls.elementAt(i));
}
else {
tmp.setAttributeNS(XMLNS_URI, XMLNS_STRING + prefix,
(String) _namespaceDecls.elementAt(i));
}
}
_namespaceDecls.clear();
}
// Add attributes to element
/* final int nattrs = attrs.getLength();
for (int i = 0; i < nattrs; i++) {
if (attrs.getLocalName(i) == null) {
tmp.setAttribute(attrs.getQName(i), attrs.getValue(i));
}
else {
tmp.setAttributeNS(attrs.getURI(i), attrs.getQName(i),
attrs.getValue(i));
}
} */
// Add attributes to element
final int nattrs = attrs.getLength();
for (int i = 0; i < nattrs; i++) {
// checking if Namespace processing is being done
String attQName = attrs.getQName(i);
String attURI = attrs.getURI(i);
if (attrs.getLocalName(i).equals("")) {
tmp.setAttribute(attQName, attrs.getValue(i));
if (attrs.getType(i).equals("ID")) {
tmp.setIdAttribute(attQName, true);
}
} else {
tmp.setAttributeNS(attURI, attQName, attrs.getValue(i));
if (attrs.getType(i).equals("ID")) {
tmp.setIdAttributeNS(attURI, attrs.getLocalName(i), true);
}
}
}
// Append this new node onto current stack node
Node last = (Node)_nodeStk.peek();
// If the SAX2DOM is created with a non-null next sibling node,
// insert the result nodes before the next sibling under the root.
if (last == _root && _nextSibling != null)
last.insertBefore(tmp, _nextSibling);
else
last.appendChild(tmp);
// Push this node onto stack
_nodeStk.push(tmp);
_lastSibling = null;
| | public void | startEntity(java.lang.String name)
| | public void | startPrefixMapping(java.lang.String prefix, java.lang.String uri)
if (_namespaceDecls == null) {
_namespaceDecls = new Vector(2);
}
_namespaceDecls.addElement(prefix);
_namespaceDecls.addElement(uri);
|
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