//
   //  ========================================================================
   //  Copyright (c) 1995-2013 Mort Bay Consulting Pty. Ltd.
   //  ------------------------------------------------------------------------
   //  All rights reserved. This program and the accompanying materials
   //  are made available under the terms of the Eclipse Public License v1.0
   //  and Apache License v2.0 which accompanies this distribution.
   //
   //      The Eclipse Public License is available at
  //      http://www.eclipse.org/legal/epl-v10.html
  //
  //      The Apache License v2.0 is available at
  //      http://www.opensource.org/licenses/apache2.0.php
  //
  //  You may elect to redistribute this code under either of these licenses.
  //  ========================================================================
  //
  
  package org.eclipse.jetty.spdy;
  
  import java.util.zip.DataFormatException;
  import java.util.zip.Deflater;
  import java.util.zip.Inflater;
  import java.util.zip.ZipException;
  
  public class StandardCompressionFactory implements CompressionFactory
  {
      @Override
      public Compressor newCompressor()
      {
          return new StandardCompressor();
      }
  
      @Override
      public Decompressor newDecompressor()
      {
          return new StandardDecompressor();
      }
  
      public static class StandardCompressor implements Compressor
      {
          private final Deflater deflater = new Deflater();
  
          @Override
          public void setInput(byte[] input)
          {
              deflater.setInput(input);
          }
  
          @Override
          public void setDictionary(byte[] dictionary)
          {
              deflater.setDictionary(dictionary);
          }
  
          @Override
          public int compress(byte[] output)
          {
              return deflater.deflate(output, 0, output.length, Deflater.SYNC_FLUSH);
          }
      }
  
      public static class StandardDecompressor implements CompressionFactory.Decompressor
      {
          private final Inflater inflater = new Inflater();
  
          @Override
          public void setDictionary(byte[] dictionary)
          {
              inflater.setDictionary(dictionary);
          }
  
          @Override
          public void setInput(byte[] input)
          {
              inflater.setInput(input);
          }
  
          @Override
          public int decompress(byte[] output) throws ZipException
          {
              try
              {
                  return inflater.inflate(output);
              }
              catch (DataFormatException x)
              {
                  throw (ZipException)new ZipException().initCause(x);
              }
          }
      }
  }