FSTCPThrowableSerializer.java

/*
 * Copyright 2014 Ruediger Moeller.
 *
 * 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.nustaq.serialization.serializers;

import org.nustaq.serialization.FSTBasicObjectSerializer;
import org.nustaq.serialization.FSTClazzInfo;
import org.nustaq.serialization.FSTObjectInput;
import org.nustaq.serialization.FSTObjectOutput;

import java.io.IOException;
import java.lang.reflect.Constructor;

/**
 * Created by ruedi on 02.05.14.
 * enable serialization of throwables for cross platform
 */
public class FSTCPThrowableSerializer extends FSTBasicObjectSerializer {
    @Override
    public void writeObject(FSTObjectOutput out, Object toWrite, FSTClazzInfo clzInfo, FSTClazzInfo.FSTFieldInfo referencedBy, int streamPosition) throws IOException {
        Throwable th = (Throwable) toWrite;
        out.writeStringUTF(th.getMessage());
    }

    @Override
    public Object instantiate(Class objectClass, FSTObjectInput in, FSTClazzInfo serializationInfo, FSTClazzInfo.FSTFieldInfo referencee, int streamPosition) throws Exception {
        String msg = in.readStringUTF();
        try {
            Constructor constructor = objectClass.getConstructor(String.class);
            return constructor.newInstance(msg);
        } catch (Exception e) {
            return new Throwable("unable to deserialize original exception with message:"+msg);
        }
    }
}