public static void TestDouble()
{
var b = new DirectBuffer(new byte[16]);
var initial = 123.456;
b.DoublePutLittleEndian(0, initial);
var d = b.DoubleGetLittleEndian(0);
}
public static PrimitiveValue Get(DirectBuffer buffer, PrimitiveType type, int length)
{
if (length == 0)
{
return(null);
}
switch (type.Type)
{
case SbePrimitiveType.Char:
if (length == 1)
{
return(new PrimitiveValue(buffer.CharGet(0), 1));
}
else
{
var array = new byte[length];
buffer.GetBytes(0, array, 0, array.Length);
return(new PrimitiveValue(array, "UTF-8", array.Length));
}
case SbePrimitiveType.Int8:
return(new PrimitiveValue(buffer.Int8Get(0), 1));
case SbePrimitiveType.Int16:
return(new PrimitiveValue(buffer.Int16GetLittleEndian(0), 2));
case SbePrimitiveType.Int32:
return(new PrimitiveValue(buffer.Int32GetLittleEndian(0), 4));
case SbePrimitiveType.Int64:
return(new PrimitiveValue(buffer.Int64GetLittleEndian(0), 8));
case SbePrimitiveType.UInt8:
return(new PrimitiveValue(buffer.Uint8Get(0), 1));
case SbePrimitiveType.UInt16:
return(new PrimitiveValue(buffer.Uint16GetLittleEndian(0), 2));
case SbePrimitiveType.UInt32:
return(new PrimitiveValue(buffer.Uint32GetLittleEndian(0), 4));
case SbePrimitiveType.UInt64:
return(new PrimitiveValue(buffer.Uint64GetLittleEndian(0), 8));
case SbePrimitiveType.Float:
return(new PrimitiveValue(buffer.FloatGetLittleEndian(0), 4));
case SbePrimitiveType.Double:
return(new PrimitiveValue(buffer.DoubleGetLittleEndian(0), 8));
default:
return(null);
}
}
public static PrimitiveValue Get(DirectBuffer buffer, PrimitiveType type, int length)
{
if (length == 0)
{
return null;
}
switch (type.Type)
{
case SbePrimitiveType.Char:
if (length == 1)
{
return new PrimitiveValue(buffer.CharGet(0), 1);
}
else
{
var array = new byte[length];
buffer.GetBytes(0, array, 0, array.Length);
return new PrimitiveValue(array, "UTF-8", array.Length);
}
case SbePrimitiveType.Int8:
return new PrimitiveValue(buffer.Int8Get(0), 1);
case SbePrimitiveType.Int16:
return new PrimitiveValue(buffer.Int16GetLittleEndian(0), 2);
case SbePrimitiveType.Int32:
return new PrimitiveValue(buffer.Int32GetLittleEndian(0), 4);
case SbePrimitiveType.Int64:
return new PrimitiveValue(buffer.Int64GetLittleEndian(0), 8);
case SbePrimitiveType.UInt8:
return new PrimitiveValue(buffer.Uint8Get(0), 1);
case SbePrimitiveType.UInt16:
return new PrimitiveValue(buffer.Uint16GetLittleEndian(0), 2);
case SbePrimitiveType.UInt32:
return new PrimitiveValue(buffer.Uint32GetLittleEndian(0), 4);
case SbePrimitiveType.UInt64:
return new PrimitiveValue(buffer.Uint64GetLittleEndian(0), 8);
case SbePrimitiveType.Float:
return new PrimitiveValue(buffer.FloatGetLittleEndian(0), 4);
case SbePrimitiveType.Double:
return new PrimitiveValue(buffer.DoubleGetLittleEndian(0), 8);
default:
return null;
}
}
public void ShouldGetDoubleLittleEndian()
{
const double value = double.MaxValue - 1;
const int index = 0;
var bytes = BitConverter.GetBytes(value);
Array.Copy(bytes, 0, _buffer, index, 8);
var result = _directBuffer.DoubleGetLittleEndian(index);
Assert.AreEqual(value, result);
}
//TODO big endian
private static void MapEncodingToString(StringBuilder sb, DirectBuffer buffer, int index, Encoding encoding)
{
switch (encoding.PrimitiveType.Type)
{
case SbePrimitiveType.Char:
sb.Append('\'').Append(buffer.CharGet(index)).Append('\'');
break;
case SbePrimitiveType.Int8:
sb.Append(buffer.Int8Get(index));
break;
case SbePrimitiveType.Int16:
sb.Append(buffer.Int16GetLittleEndian(index));
break;
case SbePrimitiveType.Int32:
sb.Append(buffer.Int32GetLittleEndian(index));
break;
case SbePrimitiveType.Int64:
sb.Append(buffer.Int64GetLittleEndian(index));
break;
case SbePrimitiveType.UInt8:
sb.Append(buffer.Uint8Get(index));
break;
case SbePrimitiveType.UInt16:
sb.Append(buffer.Uint16GetLittleEndian(index));
break;
case SbePrimitiveType.UInt32:
sb.Append(buffer.Uint32GetLittleEndian(index));
break;
case SbePrimitiveType.UInt64:
sb.Append(buffer.Uint64GetLittleEndian(index));
break;
case SbePrimitiveType.Float:
sb.Append(buffer.FloatGetLittleEndian(index));
break;
case SbePrimitiveType.Double:
sb.Append(buffer.DoubleGetLittleEndian(index));
break;
}
}
//TODO big endian
private static void MapEncodingToString(StringBuilder sb, DirectBuffer buffer, int index, Encoding encoding)
{
switch (encoding.PrimitiveType.Type)
{
case SbePrimitiveType.Char:
sb.Append('\'').Append(buffer.CharGet(index)).Append('\'');
break;
case SbePrimitiveType.Int8:
sb.Append(buffer.Int8Get(index));
break;
case SbePrimitiveType.Int16:
sb.Append(buffer.Int16GetLittleEndian(index));
break;
case SbePrimitiveType.Int32:
sb.Append(buffer.Int32GetLittleEndian(index));
break;
case SbePrimitiveType.Int64:
sb.Append(buffer.Int64GetLittleEndian(index));
break;
case SbePrimitiveType.UInt8:
sb.Append(buffer.Uint8Get(index));
break;
case SbePrimitiveType.UInt16:
sb.Append(buffer.Uint16GetLittleEndian(index));
break;
case SbePrimitiveType.UInt32:
sb.Append(buffer.Uint32GetLittleEndian(index));
break;
case SbePrimitiveType.UInt64:
sb.Append(buffer.Uint64GetLittleEndian(index));
break;
case SbePrimitiveType.Float:
sb.Append(buffer.FloatGetLittleEndian(index));
break;
case SbePrimitiveType.Double:
sb.Append(buffer.DoubleGetLittleEndian(index));
break;
}
}
private int WriteFieldsToTable(IWritableReactiveTable table, IReactiveColumn column, int rowId, DirectBuffer buffer, int bufferOffset, int read)
{
var columnId = column.ColumnId;
var remaining = read - bufferOffset;
if (column.Type == typeof(int))
{
if (remaining < sizeof(int))
{
return(-1);
}
table.SetValue(columnId, rowId, buffer.Int32GetLittleEndian(bufferOffset));
return(sizeof(int));
}
else if (column.Type == typeof(short))
{
if (remaining < sizeof(short))
{
return(-1);
}
table.SetValue(columnId, rowId, buffer.Int16GetLittleEndian(bufferOffset));
return(sizeof(short));
}
else if (column.Type == typeof(string))
{
if (remaining < sizeof(ushort))
{
return(-1);
}
var stringLength = buffer.Uint16GetLittleEndian(bufferOffset);
bufferOffset += sizeof(ushort);
remaining = read - bufferOffset;
if (remaining < stringLength)
{
return(-1);
}
var bytesRead = buffer.GetBytes(bufferOffset, _stringTempBuffer, 0, stringLength);
var value = Encoding.Default.GetString(_stringTempBuffer, 0, bytesRead);
table.SetValue(columnId, rowId, value);
return(sizeof(ushort) + bytesRead);
}
else if (column.Type == typeof(bool))
{
if (remaining < sizeof(byte))
{
return(-1);
}
var b = buffer.CharGet(bufferOffset);
table.SetValue(columnId, rowId, b == 1);
return(sizeof(byte));
}
else if (column.Type == typeof(double))
{
if (remaining < sizeof(double))
{
return(-1);
}
var value = buffer.DoubleGetLittleEndian(bufferOffset);
table.SetValue(columnId, rowId, value);
return(sizeof(double));
}
else if (column.Type == typeof(long))
{
if (remaining < sizeof(long))
{
return(-1);
}
table.SetValue(columnId, rowId, buffer.Int64GetLittleEndian(bufferOffset));
return(sizeof(long));
}
else if (column.Type == typeof(decimal))
{
if (remaining < sizeof(decimal))
{
return(-1);
}
Buffer.BlockCopy(_byteArray, bufferOffset, _decimalBuffer, 0, _decimalBuffer.Length);
table.SetValue(columnId, rowId, _bytesToDecimal(_decimalBuffer));
return(_decimalBuffer.Length);
}
else if (column.Type == typeof(DateTime))
{
// table.SetValue(columnId, rowId, BclHelpers.ReadDateTime(reader));
}
else if (column.Type == typeof(TimeSpan))
{
// table.SetValue(columnId, rowId, BclHelpers.ReadTimeSpan(reader));
}
else if (column.Type == typeof(Guid))
{
// table.SetValue(columnId, rowId, BclHelpers.ReadGuid(reader));
}
else if (column.Type == typeof(byte))
{
if (remaining < sizeof(byte))
{
return(-1);
}
table.SetValue(columnId, rowId, buffer.CharGet(bufferOffset));
return(sizeof(byte));
}
else if (column.Type == typeof(char))
{
if (remaining < sizeof(char))
{
return(-1);
}
table.SetValue(columnId, rowId, (char)buffer.Uint16GetLittleEndian(bufferOffset));
return(sizeof(char));
}
else if (column.Type == typeof(float))
{
if (remaining < sizeof(float))
{
return(-1);
}
table.SetValue(columnId, rowId, buffer.FloatGetLittleEndian(bufferOffset));
return(sizeof(float));
}
return(0);
}
