// CompressedFileHandler.cs
// Copyright (C) 2001 Mike Krueger
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// As a special exception, if you link this library with other files to
// produce an executable, this library does not by itself cause the
// resulting executable to be covered by the GNU General Public License.
// This exception does not however invalidate any other reasons why the
// executable file might be covered by the GNU General Public License.
using System;
using System.IO;
using System.Text;
using NZlib.GZip;
namespace CVS.FileHandler{
/// <summary>
/// Implements a compressed file handler
/// </summary>
public class CompressedFileHandler : UncompressedFileHandler // WARNING : untested class :)
{
public override void SendTextFile(CvsStream outStream, string fileName)
{
base.SendTextFile(outStream, fileName); // because it depends ond SendBinaryFile this is OK
}
public override void ReceiveTextFile(CvsStream inputStream, string fileName, int length)
{
Stream oldStream = inputStream.BaseStream;
inputStream.BaseStream = new GZipInputStream(inputStream.BaseStream);
base.ReceiveTextFile(inputStream, fileName, length);
inputStream.BaseStream = oldStream;
}
public override void SendBinaryFile(CvsStream outStream, string fileName)
{
FileStream fs = File.OpenRead(fileName);
byte[] data = new byte[fs.Length];
fs.Read(data, 0, data.Length);
fs.Close();
Stream oldStream = outStream.BaseStream;
outStream.BaseStream = new GZipOutputStream(outStream.BaseStream);
outStream.SendString("z" + data.Length.ToString() + "\n");
outStream.Write(data);
outStream.BaseStream = oldStream;
}
public override void ReceiveBinaryFile(CvsStream inputStream, string fileName, int length)
{
Stream oldStream = inputStream.BaseStream;
inputStream.BaseStream = new GZipInputStream(inputStream.BaseStream);
base.ReceiveBinaryFile(inputStream, fileName, length);
inputStream.BaseStream = oldStream;
}
}
}
|