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88 lines
3.8 KiB
C#
88 lines
3.8 KiB
C#
/* Copyright (c) Citrix Systems Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms,
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* with or without modification, are permitted provided
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* that the following conditions are met:
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*
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* * Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the
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* following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the
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* following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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using System.IO;
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using System;
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namespace XenCenterLib.Compression
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{
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/// <summary>
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/// A static factory to create an object that will allow the archiving of data
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/// </summary>
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public static class CompressionFactory
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{
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/// <summary>
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/// Type of compressed stream
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/// </summary>
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public enum Type
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{
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Gz,
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Bz2
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}
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/// <summary>
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/// Instantiate a class that can decompress a data stream type
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/// </summary>
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/// <param name="compressionType">Type of compressed stream to read</param>
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/// <param name="compressedDataSource">The contents of compressed data</param>
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/// <exception cref="NotSupportedException">If there is not a compressor for a specified archive type</exception>
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/// <returns>CompressionStream to allow an read as a stream</returns>
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public static CompressionStream Reader(Type compressionType, Stream compressedDataSource)
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{
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if (compressionType == Type.Gz)
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return new DotNetZipGZipInputStream(compressedDataSource);
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if (compressionType == Type.Bz2)
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return new DotNetZipBZip2InputStream(compressedDataSource);
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throw new NotSupportedException(String.Format("Type: {0} is not supported by CompressionStream Reader", compressionType));
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}
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/// <summary>
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/// Instantiate a class that can compress a data stream type
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/// </summary>
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/// <param name="compressionType">Type of compressed stream to write</param>
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/// <param name="compressedDataTarget">The place where the compressed data will be put</param>
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/// <exception cref="NotSupportedException"> if there is not a compressor for a specified archive type</exception>
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/// <returns>CompressionStream to allow an write as a stream</returns>
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public static CompressionStream Writer(Type compressionType, Stream compressedDataTarget)
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{
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if (compressionType == Type.Gz)
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return new DotNetZipGZipOutputStream(compressedDataTarget);
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if (compressionType == Type.Bz2)
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return new DotNetZipBZip2OutputStream(compressedDataTarget);
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throw new NotSupportedException(String.Format("Type: {0} is not supported by CompressionStream Writer", compressionType));
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}
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}
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}
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