Commit e8677652 authored by Andre Freyssinet's avatar Andre Freyssinet

Reports changes from 5.17.1 about control of ascendant compatibility.

parent eabeda52
/*
* Copyright (C) 2013 ScalAgent Distributed Technologies
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA.
*
* Initial developer(s): ScalAgent Distributed Technologies
* Contributor(s):
*/
package fr.dyade.aaa.common.encoding;
import java.io.IOException;
import java.io.InputStream;
import java.io.InvalidClassException;
import java.io.ObjectInputStream;
import java.io.ObjectStreamClass;
public class MigrationControlInputStream extends ObjectInputStream {
public MigrationControlInputStream(InputStream in) throws IOException {
super(in);
}
protected ObjectStreamClass readClassDescriptor() throws IOException, ClassNotFoundException {
ObjectStreamClass resultClassDescriptor = super.readClassDescriptor(); // initially streams descriptor
Class localClass = Class.forName(resultClassDescriptor.getName()); // the class in the local JVM that this descriptor represents.
if (localClass == null) {
//System.out.println("No local class for " + resultClassDescriptor.getName());
return resultClassDescriptor;
}
ObjectStreamClass localClassDescriptor = ObjectStreamClass.lookup(localClass);
if (localClassDescriptor != null) { // only if class implements Serializable
final long localSUID = localClassDescriptor.getSerialVersionUID();
final long streamSUID = resultClassDescriptor.getSerialVersionUID();
if (streamSUID != localSUID) { // check for serialVersionUID mismatch.
//System.out.println("serialVersionUID mismatch for class " + resultClassDescriptor.getName() + " from uid " + streamSUID + " to uid " + localSUID);
// check for authorized overriding
// class org.objectweb.joram.mom.dest.Destination,
// stream -6697938753761953568L (version 5.16.1), local -4457639325610333885L (versions 5.16.0, 5.16.3, 5.17.x)
if (resultClassDescriptor.getName().equals("org.objectweb.joram.mom.dest.Destination") &&
streamSUID == -6697938753761953568L && localSUID == -4457639325610333885L) {
//final StringBuffer s = new StringBuffer("Overriding serialized class version mismatch: ");
//s.append("local serialVersionUID = ").append(localSUID);
//s.append(" stream serialVersionUID = ").append(streamSUID);
//Exception e = new InvalidClassException(s.toString());
//System.out.println("Potentially Fatal Deserialization Operation. " + e);
resultClassDescriptor = localClassDescriptor; // Use local class descriptor for deserialization
}
}
}
return resultClassDescriptor;
}
}
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