xenadmin/XenCenterLib/Compression/GZipStreams.cs

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/* Copyright (c) Citrix Systems, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms,
* with or without modification, are permitted provided
* that the following conditions are met:
*
* * Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
using System.IO;
using System.IO.Compression;
namespace XenCenterLib.Compression
{
/// <summary>
/// A class that can compress a gzip data stream type
/// </summary>
class GZipOutputStream : CompressionStream
{
public GZipOutputStream(Stream outputStream)
{
zipStream = new GZipStream(outputStream, CompressionMode.Compress);
}
public override void SetBaseStream(Stream outputStream)
{
zipStream = new GZipStream(outputStream, CompressionMode.Compress);
}
}
/// <summary>
/// A class that can decompress a gzip data stream type
/// </summary>
class GZipInputStream : CompressionStream
{
public GZipInputStream(Stream inputStream)
{
zipStream = new GZipStream(inputStream, CompressionMode.Decompress);
}
public override void SetBaseStream(Stream inputStream)
{
zipStream = new GZipStream(inputStream, CompressionMode.Decompress);
}
}
}