package client.net.sf.saxon.ce.functions;
import client.net.sf.saxon.ce.expr.XPathContext;
import client.net.sf.saxon.ce.om.*;
import client.net.sf.saxon.ce.trans.XPathException;
import client.net.sf.saxon.ce.type.BuiltInAtomicType;
import client.net.sf.saxon.ce.value.AtomicValue;
import client.net.sf.saxon.ce.value.QNameValue;
/**
* This class supports the resolve-QName function in XPath 2.0
*/
public class ResolveQName extends SystemFunction {
public ResolveQName newInstance() {
return new ResolveQName();
}
/**
* Evaluate the expression
*/
public Item evaluateItem(XPathContext context) throws XPathException {
AtomicValue arg0 = (AtomicValue)argument[0].evaluateItem(context);
if (arg0 == null) {
return null;
}
CharSequence lexicalQName = arg0.getStringValueCS();
NodeInfo element = (NodeInfo)argument[1].evaluateItem(context);
NamespaceResolver resolver = new InscopeNamespaceResolver(element);
StructuredQName qName;
try {
qName= StructuredQName.fromLexicalQName(lexicalQName, true, resolver);
} catch (XPathException e) {
e.maybeSetLocation(getSourceLocator());
throw e;
}
return new QNameValue(qName, BuiltInAtomicType.QNAME);
}
}
// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
// This Source Code Form is “Incompatible With Secondary Licenses”, as defined by the Mozilla Public License, v. 2.0.