private static byte[] GetMarker(long fields)
{
if (fields <= 15)
{
return new[] { (byte)(0xA0 + fields) }
}
;
var output = new List <byte>();
if (fields <= byte.MaxValue)
{
output.Add(0xD8);
}
if (fields <= ushort.MaxValue)
{
output.Add(0xD9);
}
if (fields <= uint.MaxValue)
{
output.Add(0xDA);
}
if (fields > uint.MaxValue)
{
throw new ArgumentOutOfRangeException(nameof(fields), "Too many fields defined!");
}
output.AddRange(PackStream.GetLength(fields));
return(output.ToArray());
}
public Node(byte[] bytes)
{
byte[] editedBytes;
Id = GetId(bytes, out editedBytes);
Labels = GetLabels(editedBytes, out editedBytes);
Data = PackStream.Unpack <T>(editedBytes);
}
private static byte[] Marker(long size)
{
if (size <= 15)
{
return new[] { (byte)(0x80 + size) }
}
;
var output = new List <byte>();
if (size <= 255)
{
output.Add(0xD0);
}
else if (size <= 65535)
{
output.Add(0xD1);
}
else if (size <= 4294967295)
{
output.Add(0xD2);
}
if (size > uint.MaxValue)
{
throw new ArgumentOutOfRangeException(nameof(size), size, "Size given is too big.");
}
output.AddRange(PackStream.GetLength(size));
return(output.ToArray());
}
private static IDictionary UnpackDictionary <TKey, TValue>(byte[] content)
{
int numberOfPairs;
var markerLess = RemoveMarker(content, out numberOfPairs);
var output = new Dictionary <TKey, TValue>();
if (numberOfPairs == 0)
{
return(output);
}
var packed = PackStream.GetPackedEntities(markerLess);
for (var i = 0; i < packed.Length; i += 2)
{
var key = PackStream.Unpack(packed[i]);
var value = PackStream.Unpack(packed[i + 1]);
Type genericType;
if (Packers.List.IsEnumerable(typeof(TValue), out genericType))
{
var method = typeof(Packers.List).GetTypeInfo().GetDeclaredMethod("Unpack");
var genericMethod = method.MakeGenericMethod(genericType);
var list = genericMethod.Invoke(null, new object[] { packed[i + 1].Original }) as IEnumerable;
value = (TValue)list;
}
output.Add(key, value);
}
return(output);
}
internal static byte[] GetMarker(long itemsInList)
{
if (itemsInList <= 15)
{
return new[] { (byte)(0x90 + itemsInList) }
}
;
var output = new List <byte>();
if (itemsInList <= 0xFF)
{
output.Add(0xD4);
}
else if (itemsInList <= 0xFFFF)
{
output.Add(0xD5);
}
else if (itemsInList <= uint.MaxValue)
{
output.Add(0xD6);
}
if (itemsInList > uint.MaxValue)
{
throw new ArgumentOutOfRangeException(nameof(itemsInList), itemsInList, "Too many items in the list!");
}
output.AddRange(PackStream.ConvertSizeToBytes(itemsInList));
return(output.ToArray());
}
public ICollection <byte[]> GetChunks(int chunkSize = 65535, bool includeZeroEnding = true)
{
if (chunkSize > 65535)
{
throw new ArgumentOutOfRangeException(nameof(chunkSize), chunkSize, "Chunk size too big!");
}
var fullMessage = new List <byte>();
fullMessage.Add(GetStructSize());
fullMessage.Add((byte)Signature);
var packed = PackStream.Pack(Content);
fullMessage.AddRange(packed);
var header = GenerateChunkHeader(fullMessage.Count);
for (int i = header.Length - 1; i >= 0; i--)
{
fullMessage.Insert(0, header[i]);
}
if (includeZeroEnding)
{
fullMessage.AddRange(ZeroEnding);
}
return(new List <byte[]> {
fullMessage.ToArray()
});
}
private static IDictionary <string, IEnumerable <string> > GetMetaData(Struct s)
{
if (s.NumberOfFields == 0)
{
return(null);
}
//Get actual data
var response = PackStream.Unpack <Dictionary <string, IEnumerable <string> > >(s.ContentWithoutStructAndSignature);
return(response);
}
public static byte[] Pack <T>(IEnumerable <T> content)
{
var output = new List <byte>();
var contentAsList = content.ToList();
output.AddRange(GetMarker(contentAsList.Count));
for (var i = 0; i < contentAsList.Count; i++)
{
output.AddRange(PackStream.Pack(contentAsList[i]));
}
return(output.ToArray());
}
public static IEnumerable <T> Unpack <T>(byte[] content)
{
if (!IsUnpackable(content))
{
throw new ArgumentException("Not a list.", nameof(content));
}
var numberOfElements = GetNumberOfElements(content);
var bytesToSkip = GetSizeOfMarkerInBytes(numberOfElements);
var unpacked = PackStream.Unpack(content.Skip(bytesToSkip).ToArray());
return(unpacked.Cast <T>());
}
public byte[] GetBytes()
{
var output = new List <byte>();
output.AddRange(PackStream.Pack(Cypher));
if (Parameters == null)
{
output.AddRange(new byte[] { 0xA0 });
}
else
{
throw new NotImplementedException();
}
return(output.ToArray());
}
private static byte[] PackDictionary(IDictionary content)
{
var arguments = content.GetType().GenericTypeArguments;
var keyType = arguments[0];
var valueType = arguments[1];
var bytes = new List <byte>();
bytes.AddRange(GetMarker(content.Count));
foreach (var item in content.Keys)
{
var keyBytes = PackStream.Pack(Convert.ChangeType(item, keyType));
bytes.AddRange(keyBytes);
bytes.AddRange(PackStream.Pack(Convert.ChangeType(content[item], valueType)));
}
return(bytes.ToArray());
}
public static int GetExpectedSizeInBytes(byte[] content, bool includeMarkerSize = true)
{
var numberOfElements = GetExpectedNumberOfFields(content);
var markerSize = SizeOfMarkerInBytes(content);
int length = 0;
if (includeMarkerSize)
{
length += markerSize;
}
var bytesWithoutMarker = content.Skip(markerSize).ToArray();
for (int i = 0; i < numberOfElements; i++)
{
var itemLength = PackStream.GetLengthOfFirstItem(bytesWithoutMarker);
bytesWithoutMarker = bytesWithoutMarker.Skip(itemLength).ToArray();
length += itemLength;
}
return(length);
}
public static int GetLengthInBytes(byte[] bytes, bool includeMarkerSize)
{
var numberOfElements = GetNumberOfElements(bytes);
var markerSize = GetSizeOfMarkerInBytes(numberOfElements);
int length = 0;
if (includeMarkerSize)
{
length += markerSize;
}
var bytesWithoutMarker = bytes.Skip(markerSize).ToArray();
for (int i = 0; i < numberOfElements; i++)
{
var itemLength = PackStream.GetLengthOfFirstItem(bytesWithoutMarker);
bytesWithoutMarker = bytesWithoutMarker.Skip(itemLength).ToArray();
length += itemLength;
}
return(length);
}
public byte[] GetBytes()
{
return(PackStream.Pack(Content));
}
private static byte[] GenerateChunkHeader(int length)
{
return(PackStream.ConvertSizeToBytes(length, 2));
}