Dataset, object, and byte [] binary conversion and compression plus non-compression

From: http://hi.baidu.com/chenoung/item/fd80dc0a92209d374ac4a3cc

Using system;
Using system. Collections. Generic;
Using system. Io. compression;
Using system. text;
Using system. Data;
Using system. IO;
Using system. runtime. serialization;
Using system. runtime. serialization. formatters. Binary;
Using system. xml;

Namespace commonclass
{
/// <Summary>
/// Skill: Basic Data Operations
Public class kcdataformatter
{
Public kcdataformatter (){}
/// <Summary>
/// Format the dataset into a byte array byte []
/// </Summary>
/// <Param name = "dsoriginal"> DataSet object </param>
/// <Returns> byte array </returns>
Public static byte [] getbinaryformatdata (Dataset dsoriginal)
{
Byte [] binarydataresult = NULL;
Memorystream memstream = new memorystream ();
Iformatter brformatter = new binaryformatter ();
Dsoriginal. remotingformat = serializationformat. Binary;
Brformatter. serialize (memstream, dsoriginal );
Binarydataresult = memstream. toarray ();
Memstream. Close ();
Memstream. Dispose ();
Return binarydataresult;
}
/// <Summary>
/// Format the dataset into a byte array byte [] and the data has been compressed.
/// </Summary>
/// <Param name = "dsoriginal"> DataSet object </param>
/// <Returns> byte array </returns>
Public static byte [] getbinaryformatdatacompress (Dataset dsoriginal)
{
Byte [] binarydataresult = NULL;
Memorystream memstream = new memorystream ();
Iformatter brformatter = new binaryformatter ();
Dsoriginal. remotingformat = serializationformat. Binary;
Brformatter. serialize (memstream, dsoriginal );
Binarydataresult = memstream. toarray ();
Memstream. Close ();
Memstream. Dispose ();
Return compress (binarydataresult );
}
/// <Summary>
/// Decompress the data
/// </Summary>
/// <Param name = "data"> </param>
/// <Returns> </returns>
Public static byte [] decompress (byte [] data)
{
Byte [] bdata;
Memorystream MS = new memorystream ();
Ms. Write (data, 0, Data. Length );
Ms. Position = 0;
Gzipstream stream = new gzistream (MS, compressionmode. decompress, true );
Byte [] buffer = new byte [1024];
Memorystream temp = new memorystream ();
Int READ = stream. Read (buffer, 0, buffer. Length );
While (read> 0)
{
Temp. Write (buffer, 0, read );
Read = stream. Read (buffer, 0, buffer. Length );
}
// You must disable the stream to return Ms streaming data. Otherwise, the data is incomplete.
Stream. Close ();
Stream. Dispose ();
Ms. Close ();
Ms. Dispose ();
Bdata = temp. toarray ();
Temp. Close ();
Temp. Dispose ();
Return bdata;
}
/// <Summary>
/// Compress data
/// </Summary>
/// <Param name = "data"> </param>
/// <Returns> </returns>
Public static byte [] compress (byte [] data)
{
Byte [] bdata;
Memorystream MS = new memorystream ();
Gzipstream stream = new gzipstream (MS, compressionmode. Compress, true );
Stream. Write (data, 0, Data. Length );
Stream. Close ();
Stream. Dispose ();
// You must disable the stream to return Ms streaming data. Otherwise, the data is incomplete.
// And the decompression method stream. Read (buffer, 0, buffer. Length) will return 0
Bdata = Ms. toarray ();
Ms. Close ();
Ms. Dispose ();
Return bdata;
}
/// <Summary>
/// Deserialize byte arrays into dataset objects
/// </Summary>
/// <Param name = "binarydata"> byte array </param>
/// <Returns> DataSet object </returns>
Public static dataset retrievedataset (byte [] binarydata)
{
Dataset DS = NULL;
Memorystream memstream = new memorystream (binarydata, true );
// Byte [] BS = memstream. getbuffer ();

// Memstream. Write (BS, 0, BS. Length );
// Memstream. Seek (0, seekorigin. Begin );
Iformatter brformatter = new binaryformatter ();
DS = (Dataset) brformatter. deserialize (memstream );
Return Ds;
}
/// <Summary>
/// Decompress the byte array and serialize it into a DataSet object
/// </Summary>
/// <Param name = "binarydata"> byte array </param>
/// <Returns> DataSet object </returns>
Public static dataset retrievedatasetdecompress (byte [] binarydata)
{
Dataset dsoriginal = NULL;
Memorystream memstream = new memorystream (decompress (binarydata ));
Iformatter brformatter = new binaryformatter ();
Object OBJ = brformatter. deserialize (memstream );
Dsoriginal = (Dataset) OBJ;
Return dsoriginal;
}
/// <Summary>
/// Format the object into a byte array []
/// </Summary>
/// <Param name = "dsoriginal"> Object </param>
/// <Returns> byte array </returns>
Public static byte [] getbinaryformatdata (Object dsoriginal)
{
Byte [] binarydataresult = NULL;
Memorystream memstream = new memorystream ();
Iformatter brformatter = new binaryformatter ();
Brformatter. serialize (memstream, dsoriginal );
Binarydataresult = memstream. toarray ();
Memstream. Close ();
Memstream. Dispose ();
Return binarydataresult;
}
/// <Summary>
/// Format objec into a byte array byte [] and compress it
/// </Summary>
/// <Param name = "dsoriginal"> Object </param>
/// <Returns> byte array </returns>
Public static byte [] getbinaryformatdatacompress (Object dsoriginal)
{
Byte [] binarydataresult = NULL;
Memorystream memstream = new memorystream ();
Iformatter brformatter = new binaryformatter ();
Brformatter. serialize (memstream, dsoriginal );
Binarydataresult = memstream. toarray ();
Memstream. Close ();
Memstream. Dispose ();
Return compress (binarydataresult );
}
/// <Summary>
/// Deserialize byte arrays into object objects
/// </Summary>
/// <Param name = "binarydata"> byte array </param>
/// <Returns> Object </returns>
Public static object retrieveobject (byte [] binarydata)
{
Memorystream memstream = new memorystream (binarydata );
Iformatter brformatter = new binaryformatter ();
Object OBJ = brformatter. deserialize (memstream );
Return OBJ;
}
/// <Summary>
/// Decompress the byte array and deserialize it into an object
/// </Summary>
/// <Param name = "binarydata"> byte array </param>
/// <Returns> Object </returns>
Public static object retrieveobjectdecompress (byte [] binarydata)
{
Memorystream memstream = new memorystream (decompress (binarydata ));
Iformatter brformatter = new binaryformatter ();
Object OBJ = brformatter. deserialize (memstream );
Return OBJ;
}
///// <Summary>
//// Decrypt the configuration file and read it into xmldoc.
///// </Summary>
// Public static xmlnode decryptconfigfile (string filepath)
//{
// Filestream FS = new filestream (filepath, filemode. Open );
// Xmldocument m_xmldoc = new xmldocument ();
// Binaryformatter formatter = NULL;
// Try
//{
// Formatter = new binaryformatter ();
/// Deserialize the hashtable from the file and
/// Assign the reference to the local variable.
// M_xmldoc.loadxml (kcencrypt. decrypt (string) formatter. deserialize (FS )));
// Return m_xmldoc.documentelement;
//}
// Catch (serializationexception E)
//{
// Console. writeline ("failed to deserialize. Reason:" + E. Message );
// Throw;
//}
// Finally
//{
// Fs. Close ();
// FS = NULL;
//}
//}
///// <Summary>
//// Encrypt the key before encrypting the file characters
///// </Summary>
// Public static void encryptconfigfile (string filepath, string Str)
//{
// Filestream FS = new filestream (filepath, filemode. Create );
// Binaryformatter formatter = new binaryformatter ();
// Try
//{
// Formatter. serialize (FS, kcencrypt. Encrypt (STR ));
//}
// Catch (serializationexception E)
//{
// Console. writeline ("failed to serialize. Reason:" + E. Message );
// Throw;
//}
// Finally
//{
// Fs. Close ();
// FS = NULL;
//}
//}
}
}