/// <summary>
/// Reads an element (key-value) from an reader
/// </summary>
private BsonValue ReadElement(ByteReader reader, out string name)
{
var type = reader.ReadByte();
name = this.ReadCString(reader);
if (type == 0x01) // Double
{
return(reader.ReadDouble());
}
else if (type == 0x02) // String
{
return(this.ReadString(reader));
}
else if (type == 0x03) // Document
{
return(this.ReadDocument(reader));
}
else if (type == 0x04) // Array
{
return(this.ReadArray(reader));
}
else if (type == 0x05) // Binary
{
var length = reader.ReadInt32();
var subType = reader.ReadByte();
var bytes = reader.ReadBytes(length);
switch (subType)
{
case 0x00: return(bytes);
case 0x04: return(new Guid(bytes));
}
}
else if (type == 0x07) // ObjectId
{
return(new ObjectId(reader.ReadBytes(12)));
}
else if (type == 0x08) // Boolean
{
return(reader.ReadBoolean());
}
else if (type == 0x09) // DateTime
{
var ts = reader.ReadInt64();
// catch specific values for MaxValue / MinValue #19
if (ts == 253402300800000)
{
return(DateTime.MaxValue);
}
if (ts == -62135596800000)
{
return(DateTime.MinValue);
}
return(BsonValue.UnixEpoch.AddMilliseconds(ts).ToLocalTime());
}
else if (type == 0x0A) // Null
{
return(BsonValue.Null);
}
else if (type == 0x10) // Int32
{
return(reader.ReadInt32());
}
else if (type == 0x12) // Int64
{
return(reader.ReadInt64());
}
else if (type == 0x13) // Decimal
{
return(reader.ReadDecimal());
}
else if (type == 0xFF) // MinKey
{
return(BsonValue.MinValue);
}
else if (type == 0x7F) // MaxKey
{
return(BsonValue.MaxValue);
}
throw new NotSupportedException("BSON type not supported");
}