private int writeOType(BinaryBuffer buffer, Object value, OType valueType, OType?linkedType)
{
int pointer = 0;
switch (valueType)
{
case OType.Integer:
case OType.Long:
case OType.Short:
pointer = buffer.WriteVariant(Convert.ToInt32(value));
break;
case OType.String:
pointer = buffer.Write((string)value);
break;
case OType.Double:
pointer = buffer.Write((double)value);
break;
case OType.Float:
pointer = buffer.Write((float)value);
break;
case OType.Byte:
pointer = buffer.Write((byte)value);
break;
case OType.Boolean:
pointer = buffer.Write(((bool)value) ? (byte)1 : (byte)0);
break;
case OType.DateTime:
DateTime unixEpoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
pointer = buffer.WriteVariant((long)((DateTime)value - unixEpoch).TotalMilliseconds);
break;
//case OType.Decimal:
// /*
// * The Decimal is converted to an integer and stored as scale and value
// * (example "10234.546" is stored as scale "3" and value as:"10234546")
// * +---------------+-------------------+--------------+
// * | scale:byte[4] | valueSize:byte[4] | value:byte[] |
// * +---------------+-------------------+--------------+
// * scale an 4 byte integer that represent the scale of the value
// * valueSize the length of the value
// * bytes value the bytes that represent the value of the decimal in big-endian order.
// */
// var dec = ((decimal)value);
// byte[] bytes = BinarySerializer.ToArray(dec);
// var unscaledValueBytes = FromDecimal(dec);
// var unscaledValue = new BigInteger(unscaledValueBytes);
// break;
case OType.Link:
ORID rid = (ORID)value;
pointer = buffer.Write(rid);
break;
case OType.LinkList:
case OType.LinkSet:
var col = (ICollection <ORID>)value;
pointer = buffer.WriteVariant(col.Count);
foreach (var item in col)
{
if (item == null)
{
buffer.Write(NULL_RECORD_ID);
}
else
{
buffer.Write(item);
}
}
break;
case OType.LinkBag:
break;
default:
throw new NotImplementedException("Type " + valueType + " still not supported");
}
return(pointer);
}
public byte[] Serialize(ODocument document)
{
var buffer = new BinaryBuffer();
ODocument schema = null; // Until Implementing schema this is null class
// Version
buffer.Add((byte)SERIALIZER_VERSION);
// Class Name
if (!String.IsNullOrEmpty(document.OClassName))
{
buffer.WriteVariant(document.OClassName.Length);
var className = BinarySerializer.ToArray(document.OClassName);
buffer.AddRange(className);
}
else
{
var length = BinarySerializer.ToArray((int)0);
buffer.AddRange(length);
}
// Header
var propNames = document.Keys.Where(k => !k.StartsWith("@")).ToArray();
var pos = new int[propNames.Length];
var val = new KeyValuePair <string, Object> [propNames.Length];
for (var i = 0; i < propNames.Length; i++)
{
var prop = propNames[i];
if (schema != null)
{
}
else
{
buffer.WriteVariant(prop.Length);
var propName = BinarySerializer.ToArray(prop);
buffer.AddRange(propName);
pos[i] = buffer.Allocate(sizeof(int) + 1);
}
val[i] = new KeyValuePair <string, object>(prop, document.GetField <object>(prop));
}
buffer.WriteVariant(0); // Header stop byte
// Data
for (int i = 0; i < val.Length; i++)
{
int pointer = 0;
var value = val[i].Value;
if (value != null)
{
var valueType = TypeConverter.TypeToDbName(value.GetType());
pointer = writeOType(buffer, value, valueType, getLinkedType(valueType, val[i].Key));
buffer.Write(pos[i], pointer);
if (schema == null)
{
buffer.Write((pos[i] + sizeof(int)), (byte)valueType);
}
}
}
return(buffer.ToArray());
}