@Override
public String convert(NodeInfo source) {
switch (source.getNodeKind()) {
case Node.DOCUMENT_NODE:
return "";
case Node.TEXT_NODE:
case Node.CDATA_SECTION_NODE:
return "text()";
case Node.COMMENT_NODE:
return "comment()";
case Node.PROCESSING_INSTRUCTION_NODE:
return "processing-instruction('" + source.getDisplayName() + "')";
case Node.ELEMENT_NODE:
String prefix = nsContext.getPrefix(source.getURI());
String name = source.getLocalPart();
return StringUtil.isEmpty(prefix) ? name : prefix + ':' + name;
case Node.ATTRIBUTE_NODE:
if (Namespaces.URI_XMLNS.equals(source.getURI()))
return "namespace::" + source.getLocalPart();
prefix = nsContext.getPrefix(source.getURI());
name = source.getLocalPart();
return '@' + (StringUtil.isEmpty(prefix) ? name : prefix + ':' + name);
case NodeType.NAMESPACE:
return "namespace::" + source.getLocalPart();
default:
return null;
}
}
/**
* For the moment, this method can only transform very simple XPath, like <tt>/n:foo/b:bar/@a</tt>
*
* @param xpath
* @param ns
* @return
*/
public static String normalizeNS(String xpath, NamespaceContext ns) {
StringTokenizer tokenizer = new StringTokenizer(xpath, "/", true);
StringBuilder sb = new StringBuilder();
while (tokenizer.hasMoreTokens()) {
String token = tokenizer.nextToken();
if (token.equals("/")) sb.append(token);
else {
boolean isAttribute = false;
if (token.startsWith("@")) {
token = token.substring(1);
isAttribute = true;
}
int pos = token.indexOf(':');
if (pos >= 0) {
String prefix = token.substring(0, pos);
String localName = token.substring(pos + 1);
String newPrefix = ns.getPrefix(ns.getNamespaceURI(prefix));
if (isAttribute && (newPrefix == null || newPrefix.length() == 0)) newPrefix = prefix;
if (isAttribute) sb.append("@");
if (newPrefix.length() > 0) sb.append(newPrefix).append(":");
sb.append(localName);
} else {
if (!isAttribute) {
String localName = token;
if (XmlUtils.isValidNCName(localName)) {
String uri = ns.getNamespaceURI("");
if (uri != null) {
String newPrefix = ns.getPrefix(uri);
if (newPrefix.length() > 0) sb.append(newPrefix).append(":");
}
sb.append(token);
} else {
sb.append(token);
}
} else {
// attribute didn't had a namespace, let it like that
sb.append("@").append(token);
}
}
}
}
return sb.toString();
}
public static String getPath(Stack<QName> stack, NamespaceContext ctx) {
if (ctx == null) logger.fatal("NamespaceContext is null");
StringBuilder ret = new StringBuilder();
for (QName q : stack) {
if (q == null) throw new IllegalStateException("q is null");
ret.append("/");
String prefix = ctx.getPrefix(q.getNamespaceURI());
if (prefix != null && prefix.length() > 0) ret.append(prefix).append(":");
ret.append(q.getLocalPart());
}
return ret.toString();
}
public String getPrefix(String uri) {
if (fNamespaceContext != null) {
if (uri == null) {
uri = XMLConstants.NULL_NS_URI;
}
String prefix = fNamespaceContext.getPrefix(uri);
if (prefix == null) {
prefix = XMLConstants.DEFAULT_NS_PREFIX;
}
return (fSymbolTable != null) ? fSymbolTable.addSymbol(prefix) : prefix.intern();
}
return null;
}
public static String _printQName(QName val, NamespaceContext nsc) {
// Double-check
String qname;
String prefix = nsc.getPrefix(val.getNamespaceURI());
String localPart = val.getLocalPart();
if (prefix == null || prefix.length() == 0) { // be defensive
qname = localPart;
} else {
qname = prefix + ':' + localPart;
}
return qname;
}
