001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.geronimo.kernel.config.xstream; 018 019 import java.lang.reflect.Method; 020 021 import com.thoughtworks.xstream.converters.ConversionException; 022 import com.thoughtworks.xstream.converters.Converter; 023 import com.thoughtworks.xstream.converters.MarshallingContext; 024 import com.thoughtworks.xstream.converters.UnmarshallingContext; 025 import com.thoughtworks.xstream.io.HierarchicalStreamReader; 026 import com.thoughtworks.xstream.io.HierarchicalStreamWriter; 027 028 /** 029 * @version $Rev: 549825 $ $Date: 2007-06-22 10:17:31 -0400 (Fri, 22 Jun 2007) $ 030 */ 031 public class QNameConverter implements Converter { 032 private static final String QNAME_CLASS = "javax.xml.namespace.QName"; 033 034 public boolean canConvert(Class clazz) { 035 return QNAME_CLASS.equals(clazz.getName()); 036 } 037 038 public void marshal(Object object, HierarchicalStreamWriter writer, MarshallingContext marshallingContext) { 039 writer.setValue(object.toString()); 040 } 041 042 public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext unmarshallingContext) { 043 Class qnameClass = unmarshallingContext.getRequiredType(); 044 if (!canConvert(qnameClass)) { 045 throw new ConversionException("Unexpected type in unmarshal: " + qnameClass.getName()); 046 } 047 048 String qnameString = reader.getValue(); 049 try { 050 Method method = qnameClass.getMethod("valueOf", new Class[]{String.class}); 051 Object qname = method.invoke(null, new Object[] { qnameString }); 052 return qname; 053 } catch (Exception e) { 054 throw new ConversionException("Unable to convert value to a qname: " + qnameString, e); 055 } 056 } 057 }