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/*
* 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.
*/
package catalog.util;
import java.util.Map;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpression;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
* @version $Rev$ $Date$
*/
public class XPathHelper {
public static Node selectNode(String xpath, Node root, Map<String, String> namespaces)
throws XPathExpressionException {
XPath path = XPathFactory.newInstance().newXPath();
NamespaceContextImpl context = new NamespaceContextImpl(null, namespaces);
path.setNamespaceContext(context);
XPathExpression exp = path.compile(xpath);
return (Node)exp.evaluate(root, XPathConstants.NODE);
}
public static NodeList selectNodes(String xpath, Node root, Map<String, String> namespaces)
throws XPathExpressionException {
XPath path = XPathFactory.newInstance().newXPath();
NamespaceContextImpl context = new NamespaceContextImpl(null, namespaces);
path.setNamespaceContext(context);
XPathExpression exp = path.compile(xpath);
return (NodeList)exp.evaluate(root, XPathConstants.NODESET);
}
}
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