/*
* Encog(tm) Core v3.4 - Java Version
* http://www.heatonresearch.com/encog/
* https://github.com/encog/encog-java-core
* Copyright 2008-2016 Heaton Research, Inc.
*
* 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.
*
* For more information on Heaton Research copyrights, licenses
* and trademarks visit:
* http://www.heatonresearch.com/copyright
*/
package org.encog.util.obj;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import org.encog.EncogError;
/**
* A simple Object cloner that uses serialization. Actually works really well
* for the somewhat complex nature of BasicNetwork. Performs a deep copy without
* all the headache of programming a custom clone.
*
* Original by Dave Miller here:
* http://www.javaworld.com/javaworld/javatips/jw-javatip76.html?page=2
*/
public final class ObjectCloner {
/**
* Perform a deep copy.
*
* @param oldObj
* The old object.
* @return The new object.
*/
public static Object deepCopy(final Object oldObj) {
ObjectOutputStream oos = null;
ObjectInputStream ois = null;
try {
final ByteArrayOutputStream bos = new ByteArrayOutputStream(); // A
oos = new ObjectOutputStream(bos); // B
// serialize and pass the object
oos.writeObject(oldObj); // C
oos.flush(); // D
final ByteArrayInputStream bin = new ByteArrayInputStream(bos
.toByteArray()); // E
ois = new ObjectInputStream(bin); // F
// return the new object
return ois.readObject(); // G
} catch (final Exception e) {
throw new EncogError(e);
} finally {
try {
if (oos != null) {
oos.close();
}
if (ois != null) {
ois.close();
}
} catch (final Exception e) {
throw new EncogError(e);
}
}
}
/**
* Private constructor.
*/
private ObjectCloner() {
}
}