/*
* 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 org.apache.ode.utils;
import javax.xml.namespace.QName;
/**
* Utility methods for dealing with XML qualified names ({@link QName}s).
*/
public class QNameUtils {
private QNameUtils() {
}
/**
* Create a string representation from a {@link QName}. The string will have the form
* <code>{URI}localpart</code>.
*
* @param qname a {@link QName}.
*
* @return stringified representation
*/
public static String fromQName(QName qname) {
return "{" + qname.getNamespaceURI() + "}" + qname.getLocalPart();
}
/**
* Create a {@link QName} object from its stringified representation.
*
* @see #fromQName(javax.xml.namespace.QName)
* @param s stringified representation
* @return de-stringified {@link QName}
* @throws IllegalArgumentException if the given string is not a valid stringified {@link QName}.
*/
public static QName toQName(String s) {
if (s.charAt(0) != '{') {
throw new IllegalArgumentException("Malformed QNAME: " + s);
}
int idx = s.lastIndexOf('}');
if (idx == 0) {
throw new IllegalArgumentException("Malformed QNAME: " + s);
}
return new QName(s.substring(1, idx), s.substring(idx + 1, s.length()));
}
}