org.springframework.oxm.xstream.XStreamUtils Maven / Gradle / Ivy
/*
* Copyright 2006 the original author or authors.
*
* Licensed 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.springframework.oxm.xstream;
import com.thoughtworks.xstream.alias.CannotResolveClassException;
import com.thoughtworks.xstream.converters.ConversionException;
import com.thoughtworks.xstream.io.StreamException;
import org.springframework.oxm.XmlMappingException;
/**
* Generic utility methods for working with XStream. Mainly for internal use within the framework.
*
* @author Arjen Poutsma
*/
public abstract class XStreamUtils {
/**
* Converts the given XStream exception to an appropriate exception from the org.springframework.oxm
* hierarchy.
*
* A boolean flag is used to indicate whether this exception occurs during marshalling or unmarshalling, since
* XStream itself does not make this distinction in its exception hierarchy.
*
* @param ex XStream exception that occured
* @param marshalling indicates whether the exception occurs during marshalling (true), or
* unmarshalling (false)
* @return the corresponding XmlMappingException
*/
public static XmlMappingException convertXStreamException(Exception ex, boolean marshalling) {
if (ex instanceof StreamException) {
if (marshalling) {
return new XStreamMarshallingFailureException((StreamException) ex);
}
else {
return new XStreamUnmarshallingFailureException((StreamException) ex);
}
}
else if (ex instanceof CannotResolveClassException) {
if (marshalling) {
return new XStreamMarshallingFailureException((CannotResolveClassException) ex);
}
else {
return new XStreamUnmarshallingFailureException((CannotResolveClassException) ex);
}
}
else if (ex instanceof ConversionException) {
if (marshalling) {
return new XStreamMarshallingFailureException((ConversionException) ex);
}
else {
return new XStreamUnmarshallingFailureException((ConversionException) ex);
}
}
// fallback
return new XStreamSystemException("Unknown XStream exception: " + ex.getMessage(), ex);
}
}