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* 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,
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package org.apache.cayenne.remote.hessian.service;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.Serializable;
import org.apache.cayenne.map.EntityResolver;
import org.apache.cayenne.remote.hessian.HessianConfig;
import org.apache.cayenne.remote.hessian.HessianConnection;
import com.caucho.hessian.io.HessianInput;
import com.caucho.hessian.io.HessianOutput;
/**
* Hessian related utilities.
*
* @since 1.2
* @author Andrus Adamchik
*/
public final class HessianUtil {
/**
* A utility method that clones an object using Hessian serialization/deserialization
* mechanism, which is different from default Java serialization.
*/
public static Object cloneViaClientServerSerialization(
Serializable object,
EntityResolver serverResolver) throws Exception {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
HessianOutput out = new HessianOutput(bytes);
out.setSerializerFactory(HessianConfig.createFactory(
HessianConnection.CLIENT_SERIALIZER_FACTORIES,
null));
out.writeObject(object);
byte[] data = bytes.toByteArray();
HessianInput in = new HessianInput(new ByteArrayInputStream(data));
in.setSerializerFactory(HessianConfig.createFactory(
HessianService.SERVER_SERIALIZER_FACTORIES,
serverResolver));
return in.readObject();
}
public static Object cloneViaServerClientSerialization(
Serializable object,
EntityResolver serverResolver) throws Exception {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
HessianOutput out = new HessianOutput(bytes);
out.setSerializerFactory(HessianConfig.createFactory(
HessianService.SERVER_SERIALIZER_FACTORIES,
serverResolver));
out.writeObject(object);
byte[] data = bytes.toByteArray();
HessianInput in = new HessianInput(new ByteArrayInputStream(data));
in.setSerializerFactory(HessianConfig.createFactory(
HessianConnection.CLIENT_SERIALIZER_FACTORIES,
null));
return in.readObject();
}
private HessianUtil() {
}
}