Mercurial > repos > IBBoard.ArmyBuilder.API

annotate Extractors/ArmyBuilderFileExtractor.cs @ 0:1a5205612b72

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Add initial work on ArmyBuilder API project\nno-open-ticket
author IBBoard <dev@ibboard.co.uk>
date Sun, 19 Apr 2009 11:24:10 +0000
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children 1a54f6afafe7
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1 // This file (ArmyBuilderFileExtractor.cs) is a part of the IBBoard.ArmyBuilder.API project and is copyright 2009 IBBoard
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2 //
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3 // The file and the library/program it is in are licensed under the GNU LGPL license, either version 3 of the License or (at your option) any later version. Please see COPYING.LGPL for more information and the full license.
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4 //
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5
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6 using System;
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7 using System.IO;
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8 //using ICSharpCode.SharpZipLib.BZip2;
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9 //using ICSharpCode.SharpZipLib.GZip;
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10 using ICSharpCode.SharpZipLib.Zip.Compression.Streams;
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11 using IBBoard.ArmyBuilder.API;
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12
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13 namespace IBBoard.ArmyBuilder.API.Extractors
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14 {
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15 public class ArmyBuilderFileExtractor
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16 {
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17 public static byte[] GetFileEntryContent(FileTableEntry entry)
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18 {
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19 //BZip2InputStream zipped = null;
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20 //GZipInputStream zipped = null;
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21 InflaterInputStream zipped = null;
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22 byte[] byteArr = new byte[entry.FileSize];
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23
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24 try
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25 {
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26 byte [] compressed = GetFileEntryCompressedContent(entry);
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27 MemoryStream ms = new MemoryStream(compressed, 0, compressed.Length);
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28 ms.Seek(0, SeekOrigin.Begin);
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29 //zipped = new BZip2InputStream(ms);
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30 //zipped = new GZipInputStream(ms);
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31 zipped = new InflaterInputStream(ms);
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32
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33 int size = 0;
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34 int offset = 0;
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35
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36 do
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37 {
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38 size = zipped.Read(byteArr, offset, byteArr.Length);
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39 offset+= size;
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40 }
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41 while (size > 0);
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42 }
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43 finally
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44 {
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45 if (zipped != null)
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46 {
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47 zipped.Close();
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48 }
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49 }
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50
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51 return byteArr;
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52 }
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53
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54 public static byte[] GetFileEntryCompressedContent(FileTableEntry entry)
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55 {
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56 FileStream stream = entry.GetParentFileStream();
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57 stream.Seek(entry.Location, SeekOrigin.Begin);
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58 byte[] bytes = new byte[entry.CompressedSize];
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59
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60 try
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61 {
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62 stream.Read(bytes, 0, entry.CompressedSize);
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63 }
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64 finally
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65 {
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66 stream.Close();
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67 }
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68
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69 return bytes;
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70 }
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71 }
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72 }