/**
* 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.activemq.util;
import java.util.Iterator;
import java.util.Map;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.propertyeditors.ClassEditor;
import org.springframework.util.Assert;
import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.annotations.Annotations;
import com.thoughtworks.xstream.converters.Converter;
import com.thoughtworks.xstream.converters.ConverterMatcher;
import com.thoughtworks.xstream.converters.SingleValueConverter;
public class XStreamFactoryBean implements FactoryBean {
XStream xstream = new XStream();
/**
* Sets the <code>Converters</code> or <code>SingleValueConverters</code> to be registered with the
* <code>XStream</code> instance.
*
* @see Converter
* @see SingleValueConverter
*/
public void setConverters(ConverterMatcher[] converters) {
for (int i = 0; i < converters.length; i++) {
if (converters[i] instanceof Converter) {
xstream.registerConverter((Converter) converters[i], i);
}
else if (converters[i] instanceof SingleValueConverter) {
xstream.registerConverter((SingleValueConverter) converters[i], i);
}
else {
throw new IllegalArgumentException("Invalid ConverterMatcher [" + converters[i] + "]");
}
}
}
/**
* Set a alias/type map, consisting of string aliases mapped to <code>Class</code> instances (or Strings to be
* converted to <code>Class</code> instances).
*
* @see org.springframework.beans.propertyeditors.ClassEditor
*/
public void setAliases(Map aliases) {
for (Iterator iterator = aliases.entrySet().iterator(); iterator.hasNext();) {
Map.Entry entry = (Map.Entry) iterator.next();
// Check whether we need to convert from String to Class.
Class type;
if (entry.getValue() instanceof Class) {
type = (Class) entry.getValue();
}
else {
ClassEditor editor = new ClassEditor();
editor.setAsText(String.valueOf(entry.getValue()));
type = (Class) editor.getValue();
}
xstream.alias((String) entry.getKey(), type);
}
}
/**
* Sets the XStream mode.
*
* @see XStream#XPATH_REFERENCES
* @see XStream#ID_REFERENCES
* @see XStream#NO_REFERENCES
*/
public void setMode(int mode) {
xstream.setMode(mode);
}
/**
* Sets the classes, for which mappings will be read from class-level JDK 1.5+ annotation metadata.
*
* @see Annotations#configureAliases(XStream, Class[])
*/
public void setAnnotatedClass(Class<?> annotatedClass) {
Assert.notNull(annotatedClass, "'annotatedClass' must not be null");
Annotations.configureAliases(xstream, annotatedClass);
}
/**
* Sets annotated classes, for which aliases will be read from class-level JDK 1.5+ annotation metadata.
*
* @see Annotations#configureAliases(XStream, Class[])
*/
public void setAnnotatedClasses(Class<?>[] annotatedClasses) {
Assert.notEmpty(annotatedClasses, "'annotatedClasses' must not be empty");
Annotations.configureAliases(xstream, annotatedClasses);
}
public Object getObject() throws Exception {
return xstream;
}
public Class getObjectType() {
return XStream.class;
}
public boolean isSingleton() {
return true;
}
}