bundles/org.simantics.fastlz/src/org/simantics/fastlz/impl/FastLZOutputStream.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   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
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.fastlz.impl;
  13
  14 import java.io.File;
  15 import java.io.FileNotFoundException;
  16 import java.io.FileOutputStream;
  17 import java.io.OutputStream;
  18 import java.nio.ByteBuffer;
  19 import java.nio.channels.WritableByteChannel;
  20
  21 import org.simantics.compressions.impl.CompressingOutputStream;
  22 import org.simantics.fastlz.FastLZ;
  23
  24
  25 /**
  26  * @author Hannu Niemist&ouml;
  27  */
  28 public class FastLZOutputStream extends CompressingOutputStream {
  29
  30     public FastLZOutputStream(File file) throws FileNotFoundException {
  31         super(file);
  32     }
  33
  34     public FastLZOutputStream(FileOutputStream stream) {
  35         super(stream);
  36     }
  37
  38     public FastLZOutputStream(OutputStream stream) {
  39         super(stream);
  40     }
  41
  42     public FastLZOutputStream(OutputStream stream, WritableByteChannel channel) {
  43         super(stream, channel);
  44     }
  45
  46     @Override
  47     protected int compressBound(int inputSize) {
  48         return FastLZ.compressBound(inputSize);
  49     }
  50
  51     @Override
  52     protected int compress(ByteBuffer uncompressed, int uncompressedOffset, int uncompressedSize,
  53             ByteBuffer compressed, int compressedOffset) {
  54         return FastLZ.compressBuffer(uncompressed, uncompressedOffset, uncompressedSize, compressed, compressedOffset);
  55     }
  56
  57     protected ByteBuffer allocateBuffer(int capacity) {
  58         return ByteBuffer.allocateDirect(capacity);
  59     }
  60
  61 }