/*
* Copyright (c) 2009-2011, EzWare
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.Redistributions
* in binary form must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.Neither the name of the
* EzWare nor the names of its contributors may be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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*/
package org.oxbow.swingbits.util;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import org.oxbow.swingbits.util.copy.FastByteArrayInputStream;
import org.oxbow.swingbits.util.copy.FastByteArrayOutputStream;
/**
* Utility for object deep copying (vs. clone()'s shallow copying)
*/
public class DeepCopy {
/**
* Creates deep copy of the object.
* @param originalObject object to copy
* @return copy of originalObject
* @throws DeepCopyException if operation cannot be performed
*/
public static final <T extends Serializable> T copy( T originalObject ) {
return DeepCopy.<T>restore( (FastByteArrayInputStream) store( originalObject ).getInputStream() );
}
public static final <T extends Serializable> FastByteArrayOutputStream store( T obj ) {
try {
FastByteArrayOutputStream fbos = new FastByteArrayOutputStream();
ObjectOutputStream out = new ObjectOutputStream(fbos);
out.writeObject( obj );
out.flush();
out.close();
return fbos;
} catch( Throwable ex ) {
throw new DeepCopyException("An " + obj.getClass().getSimpleName() + " cannot be serialized. The reason: " + ex.getLocalizedMessage(), ex);
}
}
@SuppressWarnings("unchecked")
public static final <T extends Serializable> T restore( FastByteArrayInputStream stream) {
try {
ObjectInputStream in = new ObjectInputStream(stream);
return (T) in.readObject();
} catch( Throwable ex ) {
throw new DeepCopyException("An object cannot be deserizalized. The reason: " + ex.getLocalizedMessage(), ex);
}
}
}