public void SaveToCompressedStream(System.IO.Stream aData)
{
using (var gzipOut = new ICSharpCode.SharpZipLib.BZip2.BZip2OutputStream(aData))
{
gzipOut.IsStreamOwner = false;
SaveToStream(gzipOut);
gzipOut.Close();
}
}
/// <summary>
///
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
public static byte[] CompressBytes(byte[] data)
{
var o = new MemoryStream();
var s = new ICSharpCode.SharpZipLib.BZip2.BZip2OutputStream(o);
s.Write(data, 0, data.Length);
s.Close();
o.Flush();
o.Close();
return(o.ToArray());
}
public string Zip(string uncompressedString)
{
byte[] bytData = System.Text.Encoding.Unicode.GetBytes(uncompressedString);
MemoryStream ms = new MemoryStream();
Stream s = new ICSharpCode.SharpZipLib.BZip2.BZip2OutputStream(ms);
s.Write(bytData, 0, bytData.Length);
s.Close();
byte[] compressedData = (byte[])ms.ToArray();
return(System.Convert.ToBase64String(compressedData, 0, compressedData.Length));
}
private static void SerializeTo(VocalIndexObject Object, string FilePath)
{
FileStream msObj = new FileStream(FilePath, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
ICSharpCode.SharpZipLib.BZip2.BZip2OutputStream boz = new ICSharpCode.SharpZipLib.BZip2.BZip2OutputStream(msObj);
DataContractJsonSerializer js = new DataContractJsonSerializer(typeof(VocalIndexObject));
js.WriteObject(boz, Object);
boz.Flush();
boz.Close();
msObj.Close();
}
/// <summary>
/// Compress <paramref name="instream">input stream</paramref> sending
/// result to <paramref name="outputstream">output stream</paramref>
/// </summary>
/// <param name="outstream"></param>
/// <param name="instream"></param>
/// <param name="strength">Strngth of the Compression</param>
/// <remarks>I had to change the Origial Compression Methode in a way that it woun't close
/// the <paramref name="instream">input stream</paramref> and that it seeks to the Beginning
/// of it on startup</remarks>
protected static void Compress(Stream instream, Stream outstream, CompressionStrength strength)
{
System.IO.Stream bos = outstream;
System.IO.Stream bis = instream;
bis.Seek(0, System.IO.SeekOrigin.Begin);
int ch = bis.ReadByte();
ICSharpCode.SharpZipLib.BZip2.BZip2OutputStream bzos = new ICSharpCode.SharpZipLib.BZip2.BZip2OutputStream(bos, (int)strength);
while (ch != -1)
{
bzos.WriteByte((byte)ch);
ch = bis.ReadByte();
}
bzos.Close();
}
/// <summary>
/// 压缩
/// </summary>
/// <param name="param"></param>
/// <returns></returns>
public static string Compress(string param)
{
byte[] data = System.Text.Encoding.UTF8.GetBytes(param);
//byte[] data = Convert.FromBase64String(param);
MemoryStream ms = new MemoryStream();
Stream stream = new ICSharpCode.SharpZipLib.BZip2.BZip2OutputStream(ms);
try
{
stream.Write(data, 0, data.Length);
}
finally
{
stream.Close();
ms.Close();
}
return(Convert.ToBase64String(ms.ToArray()));
}
public void SaveToCompressedStream(System.IO.Stream aData)
{
using (var gzipOut = new ICSharpCode.SharpZipLib.BZip2.BZip2OutputStream(aData))
{
gzipOut.IsStreamOwner = false;
SaveToStream(gzipOut);
gzipOut.Close();
}
}
