public async Task <string> UpsertRow(
ReminderEntry entry
)
{
var row = await _db
.Reminders
.FirstOrDefaultAsync(a =>
a.ServiceId == _clusterOptions.Value.ServiceId &&
a.GrainId == entry.GrainRef.ToKeyString() &&
a.ReminderName == entry.ReminderName
);
var nullRow =
row == null;
if (nullRow)
{
row = new OrleansEFReminder
{
Id = Guid.NewGuid(),
ETag = entry.ETag,
};
_db.Reminders.Add(row);
}
if (entry.ETag != row.ETag)
{
throw new OrleansEFReminderException.EtagMismatch(
$"etag mismatch. " +
$"grainId: {entry.GrainRef.ToKeyString()} " +
$"reminderName: {entry.ReminderName}"
);
}
var serviceId = _clusterOptions
.Value
.ServiceId;
row = OrleansEFMapper
.Map(entry, row, serviceId: serviceId);
row.ETag = Guid
.NewGuid()
.ToString();
await _db.SaveChangesAsync();
return(row.ETag);
}
/// <summary>
/// Maps the specified converter.
/// </summary>
/// <param name="converter">The converter.</param>
/// <param name="src">The source.</param>
/// <param name="dst">The DST.</param>
/// <returns></returns>
internal static ReminderEntry Map(
IGrainReferenceConverter converter,
OrleansEFReminder src,
ReminderEntry dst = null
)
{
dst = dst ?? new ReminderEntry();
dst.ETag = src.ETag;
dst.GrainRef = converter.GetGrainFromKeyString(src.GrainId);
dst.Period = TimeSpan.FromMilliseconds(src.Period);
dst.ReminderName = src.ReminderName;
dst.StartAt = src.StartTime;
return(dst);
}
/// <summary>
/// Maps the specified source.
/// </summary>
/// <param name="src">The source.</param>
/// <param name="dst">The DST.</param>
/// <param name="serviceId"></param>
/// <returns></returns>
internal static OrleansEFReminder Map(
ReminderEntry src,
OrleansEFReminder dst = null,
string serviceId = null
)
{
dst = dst ?? new OrleansEFReminder();
dst.GrainId = src.GrainRef.ToKeyString();
dst.ETag = src.ETag;
dst.GrainHash = (int)src.GrainRef.GetUniformHashCode();
dst.Period = src.Period.TotalMilliseconds;
dst.StartTime = src.StartAt;
dst.ReminderName = src.ReminderName;
dst.ServiceId = serviceId;
return(dst);
}
