public void WriteStorageFormat(IStorageFormat storageFormat)
{
StorageFormatIds.StoreNextBits(storageFormat.FormatId, storageFormat.FormatIdSize);
if (storageFormat.FormatConfig.SizeInBits > 0)
{
StorageFormatData.StoreNextBits(storageFormat.FormatConfig.Bits, storageFormat.FormatConfig.SizeInBits);
}
}
// Construction from byte array (from serialized data)
public void InitStoresFromSerializedData(byte[] serializedData)
{
int nextReadPos = 0; // Position of next read operation
int readBytes = 0;
// Read config
SerializerConfiguration serConfig = SerializerConfiguration.FromByteArray(serializedData, out readBytes);
// Update read pos
nextReadPos += readBytes;
// Assign original buffer
byte[] dataBytes = serializedData;
// Decompress when necessary
if (serConfig.IsCompressed)
{
// All data bytes
List <byte> compressedBytes = new List <byte>(serializedData.Skip(readBytes));
dataBytes = new List <byte>(CompressionFactory.GetCompressionEngine(serConfig.CompressionType).Decompress(compressedBytes.ToArray())).ToArray();
nextReadPos = 0;
}
// Restore StorageFormatIds bytes
int storageSize = BitToolkit.DecodeSize(dataBytes, out readBytes, nextReadPos);
nextReadPos += readBytes;
StorageFormatIds.InitFromSerializedData(dataBytes.Skip(nextReadPos).Take(storageSize));
nextReadPos += storageSize;
// Restore StorageFormatData bytes
storageSize = BitToolkit.DecodeSize(dataBytes, out readBytes, nextReadPos);
nextReadPos += readBytes;
StorageFormatData.InitFromSerializedData(dataBytes.Skip(nextReadPos).Take(storageSize));
nextReadPos += storageSize;
// Restore PackedData bytes
storageSize = BitToolkit.DecodeSize(dataBytes, out readBytes, nextReadPos);
nextReadPos += readBytes;
PackedData.InitFromSerializedData(dataBytes.Skip(nextReadPos).Take(storageSize));
nextReadPos += storageSize;
// Update read positions
PackedData.CachedValPosInStore = 0;
StorageFormatIds.CachedValPosInStore = 0;
StorageFormatData.CachedValPosInStore = 0;
}
public byte ReadStorageFormatId(byte idSize)
{
return(StorageFormatIds.ReadNextId(idSize));
}
// Serialization of internal data to byte array (Final step of serialization)
public byte[] ToByteArray()
{
int StorageFormatIds_ByteArraySize = StorageFormatIds.GetByteArraySize();
int StorageFormatData_ByteArraySize = StorageFormatData.GetByteArraySize();
int PackedData_ByteArraySize = PackedData.ByteArraySize;
byte[] storageFormatIdsSizeBytes = BitToolkit.EncodeSize(StorageFormatIds_ByteArraySize);
byte[] storageFormatDataSizeBytes = BitToolkit.EncodeSize(StorageFormatData_ByteArraySize);
byte[] packedDataSizeBytes = BitToolkit.EncodeSize(PackedData_ByteArraySize);
// Storage estimated size
int estimatedSize = StorageFormatIds_ByteArraySize + StorageFormatData_ByteArraySize + PackedData_ByteArraySize;
// Serializer configuration
SerializerConfiguration serConfig = new SerializerConfiguration();
serConfig.SerializerFormatVersion = m_SerializerFormatVersion;
// Compress if we have necessary data already
if (ActiveCompressionType != CompressionType.NoCompression && estimatedSize > CompressionThreshold)
{
serConfig.CompressionType = ActiveCompressionType;
}
// Should we compress data?
if (serConfig.IsCompressed)
{
byte[] rawDataAggregated = new byte[storageFormatIdsSizeBytes.Length + storageFormatDataSizeBytes.Length + packedDataSizeBytes.Length +
StorageFormatIds_ByteArraySize + StorageFormatData_ByteArraySize + PackedData_ByteArraySize];
int destIndex = 0;
// Store StorageFormatIds bytes
byte[] tmpArray = storageFormatIdsSizeBytes;
Array.Copy(tmpArray, 0, rawDataAggregated, destIndex, tmpArray.Length);
destIndex += tmpArray.Length;
StorageFormatIds.StoreBytesInByteArray(rawDataAggregated, destIndex);
destIndex += StorageFormatIds_ByteArraySize;
// Store StorageFormatData bytes
tmpArray = storageFormatDataSizeBytes;
Array.Copy(tmpArray, 0, rawDataAggregated, destIndex, tmpArray.Length);
destIndex += tmpArray.Length;
StorageFormatData.StoreBytesInByteArray(rawDataAggregated, destIndex);
destIndex += StorageFormatData_ByteArraySize;
// Store PackedData bytes
tmpArray = packedDataSizeBytes;
Array.Copy(tmpArray, 0, rawDataAggregated, destIndex, tmpArray.Length);
destIndex += tmpArray.Length;
PackedData.StoreBytesInByteArray(rawDataAggregated, destIndex);
destIndex += PackedData_ByteArraySize;
// Compressed result
byte[] compressedContent = CompressionFactory.GetCompressionEngine(ActiveCompressionType).Compress(rawDataAggregated, ActiveCompressionLevel);
// Encode config
byte[] serConfigBytes = serConfig.ToByteArray();
// Buffer for final result
byte[] result = new byte[serConfigBytes.Length + compressedContent.Length];
// Copy config info
Array.Copy(serConfigBytes, 0, result, 0, serConfigBytes.Length);
// Copy compressed content
Array.Copy(compressedContent, 0, result, serConfigBytes.Length, compressedContent.Length);
return(result);
}
else
{
// No compression necessary - we store raw data
// Encode config
byte[] serConfigBytes = serConfig.ToByteArray();
byte[] rawDataAggregated = new byte[serConfigBytes.Length + storageFormatIdsSizeBytes.Length + storageFormatDataSizeBytes.Length + packedDataSizeBytes.Length +
StorageFormatIds_ByteArraySize + StorageFormatData_ByteArraySize + PackedData_ByteArraySize];
int destIndex = 0;
// Store Serialization Configuration bytes
byte[] tmpArray = serConfigBytes;
Array.Copy(tmpArray, 0, rawDataAggregated, destIndex, tmpArray.Length);
destIndex += tmpArray.Length;
// Store StorageFormatIds bytes
tmpArray = storageFormatIdsSizeBytes;
Array.Copy(tmpArray, 0, rawDataAggregated, destIndex, tmpArray.Length);
destIndex += tmpArray.Length;
StorageFormatIds.StoreBytesInByteArray(rawDataAggregated, destIndex);
destIndex += StorageFormatIds_ByteArraySize;
// Store StorageFormatData bytes
tmpArray = storageFormatDataSizeBytes;
Array.Copy(tmpArray, 0, rawDataAggregated, destIndex, tmpArray.Length);
destIndex += tmpArray.Length;
StorageFormatData.StoreBytesInByteArray(rawDataAggregated, destIndex);
destIndex += StorageFormatData_ByteArraySize;
// Store PackedData bytes
tmpArray = packedDataSizeBytes;
Array.Copy(tmpArray, 0, rawDataAggregated, destIndex, tmpArray.Length);
destIndex += tmpArray.Length;
PackedData.StoreBytesInByteArray(rawDataAggregated, destIndex);
destIndex += PackedData_ByteArraySize;
return(rawDataAggregated);
}
}
