private void OpenArchive()
{
ArchivFile = System.IO.File.Open(PathToArchiveFile, FileMode.Open, FileAccess.ReadWrite);
SuperBlock superBlock = ReadSuperBlock();
Logger.Debug($"A: Found Superblock: Start: {superBlock.MetadataStart}, Length: {superBlock.MetadataLength}; Hash: {superBlock.MetadataHash}");
byte[] compressedMetadataBuffer = new byte[superBlock.MetadataLength];
ArchivFile.Seek(superBlock.MetadataStart, SeekOrigin.Begin);
ArchivFile.Read(compressedMetadataBuffer, 0, superBlock.MetadataLength);
byte[] metadataBuffer = Compressor.Decompress(compressedMetadataBuffer, CompressionMethod.LZMA);
string MetadataString = System.Text.Encoding.Default.GetString(metadataBuffer);
Logger.Debug($"A: Found Metadata: '{MetadataString}' Length: {MetadataString.Length}");
Metadata = JsonConvert.DeserializeObject <Metadata>(MetadataString);
}
public void Dispose()
{
string MetadataPacked = JsonConvert.SerializeObject(Metadata);
//Write Metadata to File
int MetaDataChunkId = WriteChunk(MetadataPacked, 0);
int MetaDataChunkStart = Metadata.GetChunkStart(MetaDataChunkId);
int MetaDataChunkLength = Metadata.GetChunkLength(MetaDataChunkId);
Logger.Debug($"MetadaChunk: Start: {MetaDataChunkStart}, Length: {MetaDataChunkLength}\n##########\n{MetadataPacked.ToString()}\n#############");
string MetaDataChunkHash = "MD5DEMOHASH";
//Write Superblock
SuperBlock NewSuperBlock = new SuperBlock(MetaDataChunkStart, MetaDataChunkLength, MetaDataChunkHash);
MessagePackSerializer SuperBlockSerializer = MessagePackSerializer.Get <SuperBlock>();
Chunk SuperblockChunk = Metadata.GetSuperblockChunk();
ArchivFile.Seek(SuperblockChunk.Start, SeekOrigin.Begin);
SuperBlockSerializer.Pack(ArchivFile, NewSuperBlock);
ArchivFile.Flush();
ArchivFile.Close();
}
