1 /*******************************************************************************
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2 * Copyright (c) 2007, 2012 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.lz4.impl;
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14 import java.io.File;
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15 import java.io.FileNotFoundException;
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16 import java.io.FileOutputStream;
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17 import java.io.IOException;
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18 import java.io.OutputStream;
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19 import java.nio.ByteBuffer;
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20 import java.nio.channels.WritableByteChannel;
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22 import org.simantics.compressions.impl.CompressingOutputStream;
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23 import org.simantics.lz4.LZ4;
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26 * @author Tuukka Lehtonen
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28 public class LZ4OutputStream extends CompressingOutputStream {
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30 public LZ4OutputStream(File file) throws FileNotFoundException {
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34 public LZ4OutputStream(FileOutputStream stream) {
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38 public LZ4OutputStream(OutputStream output) {
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43 public LZ4OutputStream(OutputStream stream, WritableByteChannel channel) {
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44 super(stream, channel);
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48 protected int compressBound(int inputSize) {
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49 return LZ4.compressBound(inputSize);
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53 protected int compress(ByteBuffer uncompressed, int uncompressedOffset, int uncompressedSize,
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54 ByteBuffer compressed, int compressedOffset) throws IOException {
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55 return LZ4.compressBuffer(uncompressed, uncompressedOffset, uncompressedSize, compressed, compressedOffset);
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58 protected ByteBuffer allocateBuffer(int capacity) {
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59 return ByteBuffer.allocateDirect(capacity);
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