private static ScheduledCommand CreateStoredScheduledCommand <TAggregate>(
IScheduledCommand <TAggregate> scheduledCommand,
DateTimeOffset domainTime,
Clock schedulerClock)
where TAggregate : class =>
new ScheduledCommand
{
AggregateId = ScheduledCommand <TAggregate> .TargetGuid(scheduledCommand),
SequenceNumber = scheduledCommand
.IfTypeIs <IEvent>()
.Then(e => e.SequenceNumber)
.Else(() => - DateTimeOffset.UtcNow.Ticks),
AggregateType = Command.TargetNameFor(scheduledCommand.Command.GetType()),
SerializedCommand = scheduledCommand.ToJson(),
CreatedTime = domainTime,
DueTime = scheduledCommand.DueTime ?? schedulerClock.Now(),
Clock = schedulerClock
};
internal static async Task UpdateScheduledCommand <TAggregate>(
IScheduledCommand <TAggregate> scheduledCommand,
Func <CommandSchedulerDbContext> createDbContext) where TAggregate : class
{
using (var db = createDbContext())
{
var scheduledCommandGuid = ScheduledCommand <TAggregate> .TargetGuid(scheduledCommand);
var storedCommand = await GetStoredScheduledCommand(
scheduledCommand,
db,
scheduledCommandGuid);
if (storedCommand == null)
{
if (!scheduledCommand.Command.RequiresDurableScheduling())
{
return;
}
throw new InvalidOperationException("Scheduled command not found");
}
storedCommand.Attempts++;
var result = scheduledCommand.Result;
if (result is CommandSucceeded)
{
storedCommand.AppliedTime = Domain.Clock.Now();
}
else
{
RescheduleIfAppropriate(storedCommand, result, db);
}
await db.SaveChangesAsync();
}
}