/* (non-Javadoc)
* @see org.xml.sax.ext.LexicalHandler#comment(char[], int, int)
*/
public void comment(char[] ch, int start, int length) throws SAXException {
if (inModification && charBuf.length() > 0) {
final String normalized = charBuf.getNormalizedString(FastStringBuffer.SUPPRESS_BOTH);
if (normalized.length() > 0) {
final Text text = doc.createTextNode(normalized);
if (stack.isEmpty()) {
// LOG.debug("appending text to fragment: " + text.getData());
contents.add(text);
} else {
final Element last = stack.peek();
last.appendChild(text);
}
}
charBuf.setLength(0);
}
if (inModification) {
final Comment comment = doc.createComment(new String(ch, start, length));
if (stack.isEmpty()) {
contents.add(comment);
} else {
final Element last = stack.peek();
last.appendChild(comment);
}
}
}
/** @see org.xml.sax.ContentHandler#processingInstruction(java.lang.String, java.lang.String) */
public void processingInstruction(String target, String data) throws SAXException {
if (inModification && charBuf.length() > 0) {
final String normalized = charBuf.getNormalizedString(FastStringBuffer.SUPPRESS_BOTH);
if (normalized.length() > 0) {
final Text text = doc.createTextNode(normalized);
if (stack.isEmpty()) {
if (LOG.isDebugEnabled()) {
LOG.debug("appending text to fragment: " + text.getData());
}
contents.add(text);
} else {
final Element last = stack.peek();
last.appendChild(text);
}
}
charBuf.setLength(0);
}
if (inModification) {
final ProcessingInstruction pi = doc.createProcessingInstruction(target, data);
if (stack.isEmpty()) {
contents.add(pi);
} else {
final Element last = stack.peek();
last.appendChild(pi);
}
}
}
/**
* @see org.xml.sax.ContentHandler#endElement(java.lang.String, java.lang.String,
* java.lang.String)
*/
public void endElement(String namespaceURI, String localName, String qName) throws SAXException {
if (inModification && charBuf.length() > 0) {
final String normalized =
preserveWhitespace
? charBuf.toString()
: charBuf.getNormalizedString(FastStringBuffer.SUPPRESS_BOTH);
if (normalized.length() > 0) {
final Text text = doc.createTextNode(charBuf.toString());
if (stack.isEmpty()) {
contents.add(text);
} else {
final Element last = stack.peek();
last.appendChild(text);
}
}
charBuf.setLength(0);
}
if (XUPDATE_NS.equals(namespaceURI)) {
if (IF.equals(localName)) {
final Conditional cond = conditionals.pop();
modifications.add(cond);
} else if (localName.equals(ELEMENT)) {
this.resetWhitespaceHandling(stack.pop());
} else if (localName.equals(ATTRIBUTE)) {
inAttribute = false;
} else if (localName.equals(APPEND)
|| localName.equals(UPDATE)
|| localName.equals(REMOVE)
|| localName.equals(RENAME)
|| localName.equals(REPLACE)
|| localName.equals(INSERT_BEFORE)
|| localName.equals(INSERT_AFTER)) {
inModification = false;
modification.setContent(contents);
modification.setAccessContext(accessCtx);
if (!conditionals.isEmpty()) {
final Conditional cond = conditionals.peek();
cond.addModification(modification);
} else {
modifications.add(modification);
}
modification = null;
}
} else if (inModification) {
this.resetWhitespaceHandling(stack.pop());
}
}
/**
* @see org.xml.sax.ContentHandler#startElement(java.lang.String, java.lang.String,
* java.lang.String, org.xml.sax.Attributes)
*/
public void startElement(String namespaceURI, String localName, String qName, Attributes atts)
throws SAXException {
// save accumulated character content
if (inModification && charBuf.length() > 0) {
// String normalized = charBuf.toString();
final String normalized =
preserveWhitespace
? charBuf.toString()
: charBuf.getNormalizedString(FastStringBuffer.SUPPRESS_BOTH);
if (normalized.length() > 0) {
final Text text = doc.createTextNode(charBuf.toString());
if (stack.isEmpty()) {
// LOG.debug("appending text to fragment: " + text.getData());
contents.add(text);
} else {
final Element last = stack.peek();
last.appendChild(text);
}
}
charBuf.setLength(0);
}
if (namespaceURI.equals(XUPDATE_NS)) {
String select = null;
if (localName.equals(MODIFICATIONS)) {
startModifications(atts);
return;
} else if (localName.equals(VARIABLE)) {
// variable declaration
startVariableDecl(atts);
return;
} else if (IF.equals(localName)) {
if (inModification) {
throw new SAXException("xupdate:if is not allowed inside a modification");
}
select = atts.getValue("test");
final Conditional cond =
new Conditional(broker, documentSet, select, namespaces, variables);
cond.setAccessContext(accessCtx);
conditionals.push(cond);
return;
} else if (VALUE_OF.equals(localName)) {
if (!inModification) {
throw new SAXException("xupdate:value-of is not allowed outside a modification");
}
} else if (APPEND.equals(localName)
|| INSERT_BEFORE.equals(localName)
|| INSERT_AFTER.equals(localName)
|| REMOVE.equals(localName)
|| RENAME.equals(localName)
|| UPDATE.equals(localName)
|| REPLACE.equals(localName)) {
if (inModification) {
throw new SAXException("nested modifications are not allowed");
}
select = atts.getValue("select");
if (select == null) {
throw new SAXException(localName + " requires a select attribute");
}
doc = builder.newDocument();
contents = new NodeListImpl();
inModification = true;
} else if ((ELEMENT.equals(localName)
|| ATTRIBUTE.equals(localName)
|| TEXT.equals(localName)
|| PROCESSING_INSTRUCTION.equals(localName)
|| COMMENT.equals(localName))) {
if (!inModification) {
throw new SAXException("creation elements are only allowed inside " + "a modification");
}
charBuf.setLength(0);
} else {
throw new SAXException("Unknown XUpdate element: " + qName);
}
// start a new modification section
if (APPEND.equals(localName)) {
final String child = atts.getValue("child");
modification = new Append(broker, documentSet, select, child, namespaces, variables);
} else if (UPDATE.equals(localName)) {
modification = new Update(broker, documentSet, select, namespaces, variables);
} else if (INSERT_BEFORE.equals(localName)) {
modification =
new Insert(broker, documentSet, select, Insert.INSERT_BEFORE, namespaces, variables);
} else if (INSERT_AFTER.equals(localName)) {
modification =
new Insert(broker, documentSet, select, Insert.INSERT_AFTER, namespaces, variables);
} else if (REMOVE.equals(localName)) {
modification = new Remove(broker, documentSet, select, namespaces, variables);
} else if (RENAME.equals(localName)) {
modification = new Rename(broker, documentSet, select, namespaces, variables);
} else if (REPLACE.equals(localName)) {
modification = new Replace(broker, documentSet, select, namespaces, variables);
}
// process commands for node creation
else if (ELEMENT.equals(localName)) {
String name = atts.getValue("name");
if (name == null) {
throw new SAXException("element requires a name attribute");
}
final int p = name.indexOf(':');
String namespace = null;
String prefix = "";
if (p != Constants.STRING_NOT_FOUND) {
prefix = name.substring(0, p);
if (name.length() == p + 1) {
throw new SAXException("illegal prefix in qname: " + name);
}
name = name.substring(p + 1);
namespace = atts.getValue("namespace");
if (namespace == null) {
namespace = (String) namespaces.get(prefix);
}
if (namespace == null) {
throw new SAXException("no namespace defined for prefix " + prefix);
}
}
Element elem;
if (namespace != null && namespace.length() > 0) {
elem = doc.createElementNS(namespace, name);
elem.setPrefix(prefix);
} else {
elem = doc.createElement(name);
}
if (stack.isEmpty()) {
contents.add(elem);
} else {
final Element last = stack.peek();
last.appendChild(elem);
}
this.setWhitespaceHandling((Element) stack.push(elem));
} else if (ATTRIBUTE.equals(localName)) {
final String name = atts.getValue("name");
if (name == null) {
throw new SAXException("attribute requires a name attribute");
}
final int p = name.indexOf(':');
String namespace = null;
if (p != Constants.STRING_NOT_FOUND) {
final String prefix = name.substring(0, p);
if (name.length() == p + 1) {
throw new SAXException("illegal prefix in qname: " + name);
}
namespace = atts.getValue("namespace");
if (namespace == null) {
namespace = (String) namespaces.get(prefix);
}
if (namespace == null) {
throw new SAXException("no namespace defined for prefix " + prefix);
}
}
Attr attrib =
namespace != null && namespace.length() > 0
? doc.createAttributeNS(namespace, name)
: doc.createAttribute(name);
if (stack.isEmpty()) {
for (int i = 0; i < contents.getLength(); i++) {
final Node n = contents.item(i);
String ns = n.getNamespaceURI();
final String nname = ns == null ? n.getNodeName() : n.getLocalName();
if (ns == null) {
ns = "";
}
// check for duplicate attributes
if (n.getNodeType() == Node.ATTRIBUTE_NODE
&& nname.equals(name)
&& ns.equals(namespace)) {
throw new SAXException(
"The attribute " + attrib.getNodeName() + " cannot be specified twice");
}
}
contents.add(attrib);
} else {
final Element last = (Element) stack.peek();
if (namespace != null && last.hasAttributeNS(namespace, name)
|| namespace == null && last.hasAttribute(name)) {
throw new SAXException(
"The attribute "
+ attrib.getNodeName()
+ " cannot be specified "
+ "twice on the same element");
}
if (namespace != null) {
last.setAttributeNodeNS(attrib);
} else {
last.setAttributeNode(attrib);
}
}
inAttribute = true;
currentNode = attrib;
// process value-of
} else if (VALUE_OF.equals(localName)) {
select = atts.getValue("select");
if (select == null) {
throw new SAXException("value-of requires a select attribute");
}
final Sequence seq = processQuery(select);
if (LOG.isDebugEnabled()) {
LOG.debug("Found " + seq.getItemCount() + " items for value-of");
}
Item item;
try {
for (final SequenceIterator i = seq.iterate(); i.hasNext(); ) {
item = i.nextItem();
if (Type.subTypeOf(item.getType(), Type.NODE)) {
final Node node = NodeSetHelper.copyNode(doc, ((NodeValue) item).getNode());
if (stack.isEmpty()) {
contents.add(node);
} else {
final Element last = (Element) stack.peek();
last.appendChild(node);
}
} else {
final String value = item.getStringValue();
characters(value.toCharArray(), 0, value.length());
}
}
} catch (final XPathException e) {
throw new SAXException(e.getMessage(), e);
}
}
} else if (inModification) {
final Element elem =
namespaceURI != null && namespaceURI.length() > 0
? doc.createElementNS(namespaceURI, qName)
: doc.createElement(qName);
Attr a;
for (int i = 0; i < atts.getLength(); i++) {
final String name = atts.getQName(i);
final String nsURI = atts.getURI(i);
if (name.startsWith("xmlns")) {
// Why are these showing up? They are supposed to be stripped out?
} else {
a = nsURI != null ? doc.createAttributeNS(nsURI, name) : doc.createAttribute(name);
a.setValue(atts.getValue(i));
if (nsURI != null) {
elem.setAttributeNodeNS(a);
} else {
elem.setAttributeNode(a);
}
}
}
if (stack.isEmpty()) {
contents.add(elem);
} else {
final Element last = (Element) stack.peek();
last.appendChild(elem);
}
this.setWhitespaceHandling((Element) stack.push(elem));
}
}
