private static void WriteElement(ByteWriter writer, string key, BsonValue value)
{
// cast RawValue to avoid one if on As<Type>
switch (value.Type)
{
case BsonType.Double:
writer.Write((byte)0x01);
WriteCString(writer, key);
writer.Write((Double)value.RawValue);
break;
case BsonType.String:
writer.Write((byte)0x02);
WriteCString(writer, key);
WriteString(writer, (String)value.RawValue);
break;
case BsonType.Document:
writer.Write((byte)0x03);
WriteCString(writer, key);
WriteDocument(writer, (BsonDocument)value);
break;
case BsonType.Array:
writer.Write((byte)0x04);
WriteCString(writer, key);
WriteArray(writer, new BsonArray((List <BsonValue>)value.RawValue));
break;
case BsonType.Binary:
writer.Write((byte)0x05);
WriteCString(writer, key);
var bytes = (byte[])value.RawValue;
writer.Write(bytes.Length);
writer.Write((byte)0x00); // subtype 00 - Generic binary subtype
writer.Write(bytes);
break;
case BsonType.Guid:
writer.Write((byte)0x05);
WriteCString(writer, key);
var guid = ((Guid)value.RawValue).ToByteArray();
writer.Write(guid.Length);
writer.Write((byte)0x04); // UUID
writer.Write(guid);
break;
case BsonType.ObjectId:
writer.Write((byte)0x07);
WriteCString(writer, key);
writer.Write(((ObjectId)value.RawValue).ToByteArray());
break;
case BsonType.Boolean:
writer.Write((byte)0x08);
WriteCString(writer, key);
writer.Write((byte)(((Boolean)value.RawValue) ? 0x01 : 0x00));
break;
case BsonType.DateTime:
writer.Write((byte)0x09);
WriteCString(writer, key);
var date = (DateTime)value.RawValue;
// do not convert to UTC min/max date values - #19
var utc = (date == DateTime.MinValue || date == DateTime.MaxValue) ? date : date.ToUniversalTime();
var ts = utc - BsonValue.UnixEpoch;
writer.Write(Convert.ToInt64(ts.TotalMilliseconds));
break;
case BsonType.Null:
writer.Write((byte)0x0A);
WriteCString(writer, key);
break;
case BsonType.Int32:
writer.Write((byte)0x10);
WriteCString(writer, key);
writer.Write((Int32)value.RawValue);
break;
case BsonType.Int64:
writer.Write((byte)0x12);
WriteCString(writer, key);
writer.Write((Int64)value.RawValue);
break;
case BsonType.Decimal:
writer.Write((byte)0x13);
WriteCString(writer, key);
writer.Write((Decimal)value.RawValue);
break;
case BsonType.MinValue:
writer.Write((byte)0xFF);
WriteCString(writer, key);
break;
case BsonType.MaxValue:
writer.Write((byte)0x7F);
WriteCString(writer, key);
break;
}
}