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