public override int GetHashCode()
{
var aSChd = ShardKey <TRecord> .GetValueBytes(this._greatGrandChildId);
var aResult = new byte[4];
if (!(aSChd is null))
{
if (aSChd.Length > 0)
{
aResult[0] = aSChd[0];
}
if (aSChd.Length > 1)
{
aResult[1] = aSChd[1];
}
if (aSChd.Length > 2)
{
aResult[2] = aSChd[2];
}
if (aSChd.Length > 3)
{
aResult[3] = aSChd[3];
}
}
return(_key.GetHashCode() | BitConverter.ToInt32(aResult, 0));
}
internal byte[] ToArray()
{
var aOrigin = System.Text.Encoding.UTF8.GetBytes(new[] { this._key.Origin });
var shardData = ShardKey <TRecord> .GetValueBytes(_key.ShardId);
var recordData = ShardKey <TRecord> .GetValueBytes(_key.RecordId);
var childData = ShardKey <TRecord> .GetValueBytes(_key.ChildId);
var grandChildData = ShardKey <TRecord> .GetValueBytes(_key.GrandChildId);
var greatGrandChildData = ShardKey <TRecord> .GetValueBytes(_greatGrandChildId);
var aResult = new byte[aOrigin.Length + shardData.Length + recordData.Length + childData.Length + grandChildData.Length + 1];
aResult[0] = (byte)(aOrigin.Length | (1 << 2)); //origin length on bits 1 & 2, version (1) on bit 3.
var resultIndex = 1;
aOrigin.CopyTo(aResult, resultIndex);
resultIndex += aOrigin.Length;
shardData.CopyTo(aResult, resultIndex);
resultIndex += shardData.Length;
recordData.CopyTo(aResult, resultIndex);
resultIndex += recordData.Length;
childData.CopyTo(aResult, resultIndex);
resultIndex += childData.Length;
grandChildData.CopyTo(aResult, resultIndex);
resultIndex += grandChildData.Length;
greatGrandChildData.CopyTo(aResult, resultIndex);
resultIndex += greatGrandChildData.Length;
return(aResult);
}
public static ShardKey <TRecord, TChild> FromExternalString(string value)
{
var aValues = StringExtensions.SerializeFromExternalString(value);
int orgnLen = aValues[0] & 3;
var orgn = System.Text.Encoding.UTF8.GetString(aValues, 1, orgnLen)[0];
var pos = orgnLen + 1;
short shardId = ShardKey <TRecord> .ConvertFromBytes(aValues, ref pos, typeof(short));
TRecord recordId = ShardKey <TRecord> .ConvertFromBytes(aValues, ref pos, typeof(TRecord));
TChild childId = ShardKey <TRecord> .ConvertFromBytes(aValues, ref pos, typeof(TChild));
return(new ShardKey <TRecord, TChild>(orgn, shardId, recordId, childId));
}
/// <summary>
/// ISerializer constructor
/// </summary>
/// <param name="info"></param>
/// <param name="context"></param>
public ShardKey(SerializationInfo info, StreamingContext context)
{
if (info.MemberCount == 4)
{
char origin = info.GetChar("origin");
var shardId = (short)info.GetValue("shardId", typeof(short));
TRecord recordId = (TRecord)info.GetValue("recordId", typeof(TRecord));
_key = new ShardKey <TRecord>(origin, shardId, recordId);
_childId = (TChild)info.GetValue("childId", typeof(TChild));
}
else
{
var tmp = FromExternalString(info.GetString("ShardKey"));
_key = tmp.Key;
_childId = tmp.ChildId;
}
}
public static void NullShardChildArguments <TRecord, TChild>(this ILogger logger, string propertyName, ShardKey <TRecord, TChild> shardChild) where TRecord : IComparable where TChild : IComparable
{
if (shardChild.Key.ShardId.Equals(null) || shardChild.Key.RecordId.Equals(null) || shardChild.ChildId.Equals(null))
{
_sqlShardChildNull(logger, propertyName, shardChild.ToString(), null);
}
}
public ShardKey(char origin, short shardId, TRecord recordId, TChild childRecordId, TGrandChild grandChildRecordId, TGreatGrandChild greatGrandChildRecordId)
{
_key = new ShardKey <TRecord, TChild, TGrandChild>(origin, shardId, recordId, childRecordId, grandChildRecordId);
_greatGrandChildId = greatGrandChildRecordId;
}
public ShardKey(ShardKey <TRecord, TChild, TGrandChild> key, TGreatGrandChild grandChildRecordId)
{
_key = key;
_greatGrandChildId = grandChildRecordId;
}
public bool Equals(ShardKey <TRecord, TChild, TGrandChild, TGreatGrandChild> other)
{
return((other.GrandChild == _key) && (other.GreatGrandChildId.CompareTo(_greatGrandChildId) == 0));
}
internal static byte[] GetValueBytes(IComparable value)
{
switch (value)
{
case int i:
return(BitConverter.GetBytes(i));
case byte b:
return(new byte[1] {
b
});
case short s:
return(BitConverter.GetBytes(s));
case long l:
return(BitConverter.GetBytes(l));
case char c:
return(BitConverter.GetBytes(c));
case decimal d:
var aid = Decimal.GetBits(d);
var i0 = BitConverter.GetBytes(aid[0]);
var i1 = BitConverter.GetBytes(aid[1]);
var i2 = BitConverter.GetBytes(aid[2]);
var i3 = BitConverter.GetBytes(aid[3]);
return(new byte[16] {
i0[0], i0[1], i0[2], i0[3], i1[0], i1[1], i1[2], i1[3], i2[0], i2[1], i2[2], i2[3], i3[0], i3[1], i3[2], i3[3]
});
case double o:
return(BitConverter.GetBytes(o));
case float f:
return(BitConverter.GetBytes(f));
case uint ui:
return(BitConverter.GetBytes(ui));
case ulong ul:
return(BitConverter.GetBytes(ul));
case ushort us:
return(BitConverter.GetBytes(us));
case sbyte sb:
return(new byte[1] {
(byte)((int)sb + 128)
});
//case bool bln:
// return BitConverter.GetBytes(bln);
case DateTime dt:
return(BitConverter.GetBytes(dt.Ticks));
case string str:
if (str is null)
{
return(new byte[1] {
0
});
}
else
{
var aStr = System.Text.Encoding.UTF8.GetBytes(str);
if (aStr.Length > 128)
{
throw new Exception("Shard values cannot serialize strings longer than 128 bytes.");
}
var aResult = new byte[aStr.Length + 1];
aResult[0] = Convert.ToByte((aStr.Length << 1) + 1);
aStr.CopyTo(aResult, 1);
return(aResult);
}
case Enum e:
var type = Enum.GetUnderlyingType(value.GetType());
var newValue = Convert.ChangeType(value, type);
return(ShardKey <TRecord> .GetValueBytes(newValue as IComparable));
case DateTimeOffset dto:
var adt = BitConverter.GetBytes(dto.Ticks);
var tsp = BitConverter.GetBytes(dto.Offset.Ticks);
return(new byte[] { adt[0], adt[1], adt[2], adt[3], adt[4], adt[5], adt[6], adt[7], tsp[0], tsp[1], tsp[2], tsp[3], tsp[4], tsp[5], tsp[6], tsp[7] });
case TimeSpan ts:
return(BitConverter.GetBytes(ts.Ticks));
case Guid g:
return(g.ToByteArray());
//case null:
// return new byte[0];
default:
if (value is Nullable)
{
if (value == null)
{
return(BitConverter.GetBytes(true));
}
var shdType = Nullable.GetUnderlyingType(value.GetType());
var nonNullValue = Convert.ChangeType(value, shdType);
var aVal = GetValueBytes(nonNullValue as IComparable);
var valResult = new byte[1 + aVal.Length];
valResult[0] = BitConverter.GetBytes(false)[0];
aVal.CopyTo(valResult, 1);
return(valResult);
}
else
{
throw new Exception("Cannot serialize this type.");
}
}
}
public bool Equals(ShardKey <TRecord> other)
{
return((other.Origin == _origin) && (other.ShardId.CompareTo(_shardId) == 0) && (other.RecordId.CompareTo(_recordId) == 0));
}
internal static dynamic ConvertFromBytes(byte[] data, ref int position, Type valueType)
{
if (valueType == typeof(int))
{
position += 4;
return(BitConverter.ToInt32(data, position - 4));
}
if (valueType == typeof(long))
{
position += 8;
return(BitConverter.ToInt64(data, position - 8));
}
if (valueType == typeof(byte))
{
position += 1;
return(data[position - 1]);
}
if (valueType == typeof(short))
{
position += 2;
return(BitConverter.ToInt16(data, position - 2));
}
if (valueType == typeof(char))
{
position += 2;
return(BitConverter.ToChar(data, position - 2));
}
if (valueType == typeof(decimal))
{
var i0 = BitConverter.ToInt32(data, position);
var i1 = BitConverter.ToInt32(data, position + 4);
var i2 = BitConverter.ToInt32(data, position + 8);
var i3 = BitConverter.ToInt32(data, position + 12);
position += 16;
return((dynamic) new Decimal(new int[] { i0, i1, i2, i3 }));
}
if (valueType == typeof(double))
{
position += 8;
return(BitConverter.ToDouble(data, position - 8));
}
if (valueType == typeof(float))
{
position += 4;
return(BitConverter.ToSingle(data, position - 4));
}
if (valueType == typeof(uint))
{
position += 4;
return(BitConverter.ToUInt32(data, position - 4));
}
if (valueType == typeof(ulong))
{
position += 8;
return(BitConverter.ToUInt64(data, position - 8));
}
if (valueType == typeof(ushort))
{
position += 2;
return(BitConverter.ToUInt16(data, position - 2));
}
if (valueType == typeof(sbyte))
{
position += 1;
return((sbyte)((int)data[position - 1] - 128));
}
if (valueType == typeof(bool))
{
position += 1;
return(BitConverter.ToBoolean(data, position - 1));
}
if (valueType == typeof(DateTime))
{
position += 8;
return(new DateTime(BitConverter.ToInt64(data, position - 8)));
}
if (valueType == typeof(string))
{
if (data[position] == 0)
{
position += 1;
return((string)null);
}
var len = (int)data[position] >> 1;
position += len + 1;
return(System.Text.Encoding.UTF8.GetString(data, position - len, len));
}
if (valueType == typeof(Enum))
{
var baseType = Enum.GetUnderlyingType(valueType);
return(ShardKey <TRecord> .ConvertFromBytes(data, ref position, baseType));
}
if (valueType == typeof(Nullable))
{
var isNull = BitConverter.ToBoolean(data, position);
position += 1;
if (isNull)
{
return(null);
}
var baseType = Nullable.GetUnderlyingType(valueType);
return(ConvertFromBytes(data, ref position, baseType));
}
if (valueType == typeof(Guid))
{
var result = new Guid(new byte[] { data[position], data[position + 1], data[position + 2], data[position + 3], data[position + 4], data[position + 5], data[position + 6], data[position + 7], data[position + 8], data[position + 9], data[position + 10], data[position + 11], data[position + 12], data[position + 13], data[position + 14], data[position + 15] });
position += 16;
return(result);
}
else
{
throw new Exception($"Could not recognized the type {valueType.ToString()}.");
}
}
public ShardKey(char origin, short shardId, TRecord recordId, TChild childRecordId)
{
_key = new ShardKey <TRecord>(origin, shardId, recordId);
_childId = childRecordId;
}
public bool Equals(ShardKey <TRecord, TChild> other)
{
return((other.Key == this.Key) && (other.ChildId.CompareTo(this.ChildId) == 0));
}
public ShardKey(ShardKey <TRecord> key, TChild childRecordId)
{
_key = key;
_childId = childRecordId;
}