/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

/*
 * XSEC
 *
 * DSIGXPathHere := Implementation of the "here()" XPath function.
 *
 * $Id$
 *
 */

#include <xsec/dsig/DSIGXPathHere.hpp>

#ifdef XSEC_HAVE_XPATH

XALAN_USING_XALAN(XalanCopyConstruct);

DSIGXPathHere::DSIGXPathHere() {

	XalanHereNode = NULL;

}

DSIGXPathHere::DSIGXPathHere(XalanNode * here) {

	XalanHereNode = here;

}

DSIGXPathHere::~DSIGXPathHere() {}

// These methods are inherited from Function ...

XObjectPtr DSIGXPathHere::execute(
			XPathExecutionContext&	executionContext,
			XalanNode*				context,
			// const XObjectPtr		arg1,
			const Locator*			locator) const {

	// Simple function - simply return the Xalan Node we already have
	
	typedef XPathExecutionContext::BorrowReturnMutableNodeRefList	BorrowReturnMutableNodeRefList;

	// This list will hold the nodes we find.

	BorrowReturnMutableNodeRefList	nl(executionContext);

	nl->addNodeInDocOrder(XalanHereNode, executionContext);

	return executionContext.getXObjectFactory().createNodeSet(nl);
}


#if defined(XSEC_NO_COVARIANT_RETURN_TYPE)
	Function*
#else
	DSIGXPathHere*
#endif
	DSIGXPathHere::clone(MemoryManagerType& theManager) const {
		return XalanCopyConstruct(theManager, *this);
	}
		
	const XalanDOMString
	&DSIGXPathHere::getError(XalanDOMString& theBuffer) const {

		theBuffer = "The here() function takes no arguments!";
		return theBuffer;
	}

#endif /* XSEC_HAVE_XPATH */