/// <summary>
/// Serializes an object to a BsonWriter.
/// </summary>
/// <param name="bsonWriter">The BsonWriter.</param>
/// <param name="nominalType">The nominal type.</param>
/// <param name="value">The object.</param>
/// <param name="options">The serialization options.</param>
public override void Serialize(
BsonWriter bsonWriter,
Type nominalType,
object value,
IBsonSerializationOptions options)
{
if (value == null)
{
bsonWriter.WriteNull();
}
else
{
var bsonDateTime = (BsonDateTime)value;
var dateTimeSerializationOptions = EnsureSerializationOptions<DateTimeSerializationOptions>(options);
DateTime utcDateTime = DateTime.MinValue;
long millisecondsSinceEpoch;
if (dateTimeSerializationOptions.DateOnly)
{
if (bsonDateTime.Value.TimeOfDay != TimeSpan.Zero)
{
throw new BsonSerializationException("TimeOfDay component is not zero.");
}
utcDateTime = DateTime.SpecifyKind(bsonDateTime.Value, DateTimeKind.Utc); // not ToLocalTime
millisecondsSinceEpoch = BsonUtils.ToMillisecondsSinceEpoch(utcDateTime);
}
else
{
if (bsonDateTime.IsValidDateTime)
{
utcDateTime = BsonUtils.ToUniversalTime(bsonDateTime.Value);
}
millisecondsSinceEpoch = bsonDateTime.MillisecondsSinceEpoch;
}
switch (dateTimeSerializationOptions.Representation)
{
case BsonType.DateTime:
bsonWriter.WriteDateTime(millisecondsSinceEpoch);
break;
case BsonType.Document:
bsonWriter.WriteStartDocument();
bsonWriter.WriteDateTime("DateTime", millisecondsSinceEpoch);
if (bsonDateTime.IsValidDateTime)
{
bsonWriter.WriteInt64("Ticks", utcDateTime.Ticks);
}
else
{
bsonWriter.WriteUndefined("Ticks");
}
bsonWriter.WriteEndDocument();
break;
case BsonType.Int64:
if (bsonDateTime.IsValidDateTime)
{
bsonWriter.WriteInt64(utcDateTime.Ticks);
}
else
{
throw new BsonSerializationException("BsonDateTime is not a valid DateTime.");
}
break;
case BsonType.String:
if (dateTimeSerializationOptions.DateOnly)
{
bsonWriter.WriteString(bsonDateTime.Value.ToString("yyyy-MM-dd"));
}
else
{
// we're not using XmlConvert.ToString because of bugs in Mono
var dateTime = bsonDateTime.Value;
if (dateTime == DateTime.MinValue || dateTime == DateTime.MaxValue)
{
// serialize MinValue and MaxValue as Unspecified so we do NOT get the time zone offset
dateTime = DateTime.SpecifyKind(dateTime, DateTimeKind.Unspecified);
}
else if (dateTime.Kind == DateTimeKind.Unspecified)
{
// serialize Unspecified as Local se we get the time zone offset
dateTime = DateTime.SpecifyKind(dateTime, DateTimeKind.Local);
}
bsonWriter.WriteString(dateTime.ToString("yyyy-MM-ddTHH:mm:ss.FFFFFFFK"));
}
break;
default:
var message = string.Format("'{0}' is not a valid DateTime representation.", dateTimeSerializationOptions.Representation);
throw new BsonSerializationException(message);
}
}
}
/// <summary>
/// Serializes an object to a BsonWriter.
/// </summary>
/// <param name="bsonWriter">The BsonWriter.</param>
/// <param name="nominalType">The nominal type.</param>
/// <param name="value">The object.</param>
/// <param name="options">The serialization options.</param>
public override void Serialize(
BsonWriter bsonWriter,
Type nominalType,
object value,
IBsonSerializationOptions options)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
bsonWriter.WriteUndefined();
}
/// <summary>
/// Serializes an object to a BsonWriter.
/// </summary>
/// <param name="bsonWriter">The BsonWriter.</param>
/// <param name="nominalType">The nominal type.</param>
/// <param name="value">The object.</param>
/// <param name="options">The serialization options.</param>
public override void Serialize(
BsonWriter bsonWriter,
Type nominalType,
object value,
IBsonSerializationOptions options)
{
if (value == null)
{
bsonWriter.WriteNull();
}
else
{
bsonWriter.WriteUndefined();
}
}