bundles/org.simantics.fastlz/src/org/simantics/fastlz/java/FastLZJavaOutputStream.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
   3  * in Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.fastlz.java;\r
  13 \r
  14 import java.io.File;\r
  15 import java.io.FileNotFoundException;\r
  16 import java.io.FileOutputStream;\r
  17 import java.io.IOException;\r
  18 import java.io.OutputStream;\r
  19 import java.nio.ByteBuffer;\r
  20 import java.nio.channels.WritableByteChannel;\r
  21 \r
  22 import org.simantics.compressions.impl.CompressingOutputStream;\r
  23 import org.simantics.fastlz.FastLZ;\r
  24 import org.simantics.fastlz.FastLZJava;\r
  25 \r
  26 \r
  27 /**\r
  28  * @author Tuukka Lehtonen\r
  29  */\r
  30 public class FastLZJavaOutputStream extends CompressingOutputStream {\r
  31 \r
  32     public FastLZJavaOutputStream(File file) throws FileNotFoundException {\r
  33         super(file);\r
  34     }\r
  35 \r
  36     public FastLZJavaOutputStream(FileOutputStream stream) {\r
  37         super(stream);\r
  38     }\r
  39 \r
  40     public FastLZJavaOutputStream(OutputStream stream) {\r
  41         super(stream);\r
  42     }\r
  43 \r
  44     public FastLZJavaOutputStream(OutputStream stream, WritableByteChannel channel) {\r
  45         super(stream, channel);\r
  46     }\r
  47 \r
  48     @Override\r
  49     protected int compressBound(int inputSize) {\r
  50         return FastLZ.compressBound(inputSize);\r
  51     }\r
  52 \r
  53     @Override\r
  54     protected int compress(ByteBuffer uncompressed, int uncompressedOffset, int uncompressedSize,\r
  55             ByteBuffer compressed, int compressedOffset) throws IOException {\r
  56         return FastLZJava.compress(uncompressed.array(), 0, uncompressedSize, compressed.array(), 8);\r
  57     }\r
  58 \r
  59     protected ByteBuffer allocateBuffer(int capacity) {\r
  60         return ByteBuffer.allocate(capacity);\r
  61     }\r
  62 \r
  63 }\r