/**
* Check to see if the object matches a predefined set of rules.
*
* @param obj The object to verify.
* @return <code>true</code> if the objected matched a predfined set of rules.
*/
public boolean matches(Object obj) {
if (obj instanceof Element) {
Element el = (Element) obj;
return (this.name == null || this.name.equals(el.getName()))
&& (this.namespace == null || this.namespace.equals(el.getNamespace()));
}
return false;
}
/**
* This will invoke the <code>ContentHandler.startPrefixMapping</code> callback when a new
* namespace is encountered in the <code>Document</code>.
*
* @param element <code>Element</code> used in callbacks.
* @param namespaces <code>List</code> stack of Namespaces in scope.
* @return <code>Attributes</code> declaring the namespaces local to <code>element</code> or
* <code>null</code>.
*/
private Attributes startPrefixMapping(Element element, NamespaceStack namespaces)
throws JDOMException {
AttributesImpl nsAtts = null; // The namespaces as xmlns attributes
Namespace ns = element.getNamespace();
if (ns != Namespace.XML_NAMESPACE) {
String prefix = ns.getPrefix();
String uri = namespaces.getURI(prefix);
if (!ns.getURI().equals(uri)) {
namespaces.push(ns);
nsAtts = this.addNsAttribute(nsAtts, ns);
try {
contentHandler.startPrefixMapping(prefix, ns.getURI());
} catch (SAXException se) {
throw new JDOMException("Exception in startPrefixMapping", se);
}
}
}
// Fire additional namespace declarations
List additionalNamespaces = element.getAdditionalNamespaces();
if (additionalNamespaces != null) {
Iterator itr = additionalNamespaces.iterator();
while (itr.hasNext()) {
ns = (Namespace) itr.next();
String prefix = ns.getPrefix();
String uri = namespaces.getURI(prefix);
if (!ns.getURI().equals(uri)) {
namespaces.push(ns);
nsAtts = this.addNsAttribute(nsAtts, ns);
try {
contentHandler.startPrefixMapping(prefix, ns.getURI());
} catch (SAXException se) {
throw new JDOMException("Exception in startPrefixMapping", se);
}
}
}
}
return nsAtts;
}