| | 1 | | using System; |
| | 2 | | using System.IO; |
| | 3 | |
|
| | 4 | | namespace ICSharpCode.SharpZipLib.BZip2 |
| | 5 | | { |
| | 6 | | /// <summary> |
| | 7 | | /// An example class to demonstrate compression and decompression of BZip2 streams. |
| | 8 | | /// </summary> |
| | 9 | | public static class BZip2 |
| | 10 | | { |
| | 11 | | /// <summary> |
| | 12 | | /// Decompress the <paramref name="inStream">input</paramref> writing |
| | 13 | | /// uncompressed data to the <paramref name="outStream">output stream</paramref> |
| | 14 | | /// </summary> |
| | 15 | | /// <param name="inStream">The readable stream containing data to decompress.</param> |
| | 16 | | /// <param name="outStream">The output stream to receive the decompressed data.</param> |
| | 17 | | /// <param name="isStreamOwner">Both streams are closed on completion if true.</param> |
| | 18 | | public static void Decompress(Stream inStream, Stream outStream, bool isStreamOwner) |
| | 19 | | { |
| 0 | 20 | | if (inStream == null || outStream == null) { |
| 0 | 21 | | throw new Exception("Null Stream"); |
| | 22 | | } |
| | 23 | |
|
| | 24 | | try { |
| 0 | 25 | | using (BZip2InputStream bzipInput = new BZip2InputStream(inStream)) { |
| 0 | 26 | | bzipInput.IsStreamOwner = isStreamOwner; |
| 0 | 27 | | Core.StreamUtils.Copy(bzipInput, outStream, new byte[4096]); |
| 0 | 28 | | } |
| | 29 | | } finally { |
| 0 | 30 | | if (isStreamOwner) { |
| | 31 | | // inStream is closed by the BZip2InputStream if stream owner |
| 0 | 32 | | outStream.Close(); |
| | 33 | | } |
| 0 | 34 | | } |
| 0 | 35 | | } |
| | 36 | |
|
| | 37 | | /// <summary> |
| | 38 | | /// Compress the <paramref name="inStream">input stream</paramref> sending |
| | 39 | | /// result data to <paramref name="outStream">output stream</paramref> |
| | 40 | | /// </summary> |
| | 41 | | /// <param name="inStream">The readable stream to compress.</param> |
| | 42 | | /// <param name="outStream">The output stream to receive the compressed data.</param> |
| | 43 | | /// <param name="isStreamOwner">Both streams are closed on completion if true.</param> |
| | 44 | | /// <param name="level">Block size acts as compression level (1 to 9) with 1 giving |
| | 45 | | /// the lowest compression and 9 the highest.</param> |
| | 46 | | public static void Compress(Stream inStream, Stream outStream, bool isStreamOwner, int level) |
| | 47 | | { |
| 0 | 48 | | if (inStream == null || outStream == null) { |
| 0 | 49 | | throw new Exception("Null Stream"); |
| | 50 | | } |
| | 51 | |
|
| | 52 | | try { |
| 0 | 53 | | using (BZip2OutputStream bzipOutput = new BZip2OutputStream(outStream, level)) { |
| 0 | 54 | | bzipOutput.IsStreamOwner = isStreamOwner; |
| 0 | 55 | | Core.StreamUtils.Copy(inStream, bzipOutput, new byte[4096]); |
| 0 | 56 | | } |
| | 57 | | } finally { |
| 0 | 58 | | if (isStreamOwner) { |
| | 59 | | // outStream is closed by the BZip2OutputStream if stream owner |
| 0 | 60 | | inStream.Close(); |
| | 61 | | } |
| 0 | 62 | | } |
| 0 | 63 | | } |
| | 64 | |
|
| | 65 | | } |
| | 66 | | } |