/*
* Copyright (c) 2010-2014. Axon Framework
*
* 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.axonframework.serialization;
import java.io.ObjectStreamClass;
/**
* RevisionResolver implementation that returns the (String representation of the) serialVersionUID of a class. If a
* class is not serializable, it returns {@code null} when asked for a revision.
*
* @author Allard Buijze
* @since 2.0
*/
public class SerialVersionUIDRevisionResolver implements RevisionResolver {
@Override
public String revisionOf(Class<?> payloadType) {
ObjectStreamClass objectStreamClass = ObjectStreamClass.lookup(payloadType);
return objectStreamClass == null ? null : Long.toString(objectStreamClass.getSerialVersionUID());
}
}