forked from External/mage
111 lines
3.9 KiB
Java
111 lines
3.9 KiB
Java
/*
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* Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification, are
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* permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* The views and conclusions contained in the software and documentation are those of the
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* authors and should not be interpreted as representing official policies, either expressed
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* or implied, of BetaSteward_at_googlemail.com.
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*/
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package mage.util;
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import java.io.ByteArrayInputStream;
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import java.io.IOException;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.util.zip.GZIPInputStream;
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import java.util.zip.GZIPOutputStream;
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/**
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*
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* @author BetaSteward_at_googlemail.com
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* @param <T>
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*/
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public class Copier<T> {
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private static ClassLoader loader;
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public static void setLoader(ClassLoader loader) {
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Copier.loader = loader;
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}
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public T copy(T obj) {
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T copy = null;
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FastByteArrayOutputStream fbos = null;
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ObjectOutputStream out = null;
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ObjectInputStream in = null;
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try {
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fbos = new FastByteArrayOutputStream();
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out = new ObjectOutputStream(fbos);
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// Write the object out to a byte array
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out.writeObject(obj);
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out.flush();
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// Retrieve an input stream from the byte array and read
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// a copy of the object back in.
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in = new CopierObjectInputStream(loader, fbos.getInputStream());
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copy = (T) in.readObject();
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}
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catch(IOException | ClassNotFoundException e) {
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e.printStackTrace();
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} finally {
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StreamUtils.closeQuietly(fbos);
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StreamUtils.closeQuietly(out);
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StreamUtils.closeQuietly(in);
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}
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return copy;
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}
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public byte[] copyCompressed(T obj) {
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try {
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FastByteArrayOutputStream fbos = new FastByteArrayOutputStream();
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ObjectOutputStream out= new ObjectOutputStream(new GZIPOutputStream(fbos));
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// Write the object out to a byte array
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out.writeObject(obj);
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out.flush();
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out.close();
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byte[] copy = new byte[fbos.getSize()];
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System.arraycopy(fbos.getByteArray(), 0, copy, 0, fbos.getSize());
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return copy;
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}
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catch(IOException e) {
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e.printStackTrace();
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}
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return null;
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}
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public T uncompressCopy(byte[] buffer) {
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T copy = null;
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try (ObjectInputStream in = new CopierObjectInputStream(loader, new GZIPInputStream(new ByteArrayInputStream(buffer)))) {
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copy = (T) in.readObject();
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}
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catch(IOException | ClassNotFoundException e) {
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e.printStackTrace();
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}
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return copy;
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}
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}
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