public async Task ExecuteAsync(QueueId queueId, WeeklyReleaseSchedule weeklyReleaseSchedule)
{
queueId.AssertNotNull("queueId");
weeklyReleaseSchedule.AssertNotNull("weeklyReleaseSchedule");
var newWeeklyReleaseTimes = weeklyReleaseSchedule.Value.Select(
_ => new WeeklyReleaseTime(queueId.Value, null, (byte)_.Value));
var deletionParameters = new
{
QueueId = queueId.Value
};
// Transaction required on the following, as database must always contain at least one weekly release time per
// collection. The absence of weekly release times would cause a breaking inconsistency.
using (var transaction = TransactionScopeBuilder.CreateAsync())
{
using (var connection = this.connectionFactory.CreateConnection())
{
await connection.ExecuteAsync(DeleteWeeklyReleaseTimesSql, deletionParameters);
await connection.InsertAsync(newWeeklyReleaseTimes);
}
transaction.Complete();
}
}
public async Task ExecuteAsync(QueueId queueId, WeeklyReleaseSchedule weeklyReleaseSchedule, DateTime now)
{
queueId.AssertNotNull("queueId");
weeklyReleaseSchedule.AssertNotNull("weeklyReleaseSchedule");
now.AssertUtc("now");
// Transaction required on the following, as we don't want user to see a queue that does not match the collection's release times.
using (var transaction = TransactionScopeBuilder.CreateAsync())
{
await this.replaceWeeklyReleaseTimes.ExecuteAsync(queueId, weeklyReleaseSchedule);
await this.defragmentQueue.ExecuteAsync(queueId, weeklyReleaseSchedule, now);
transaction.Complete();
}
}
public async Task ExecuteAsync(QueueId queueId, WeeklyReleaseSchedule weeklyReleaseSchedule, DateTime now)
{
queueId.AssertNotNull("queueId");
weeklyReleaseSchedule.AssertNotNull("weeklyReleaseSchedule");
now.AssertUtc("now");
var queueSize = await this.getQueueSize.ExecuteAsync(queueId, now);
if (queueSize == 0)
{
return;
}
var unfragmentedLiveDates = this.liveDateCalculator.GetNextLiveDates(now, weeklyReleaseSchedule, queueSize);
await this.updateAllLiveDatesInQueue.ExecuteAsync(queueId, unfragmentedLiveDates, now);
}
public IReadOnlyList <DateTime> GetNextLiveDates(
DateTime exclusiveLowerBound,
WeeklyReleaseSchedule weeklyReleaseSchedule,
int numberOfLiveDatesToReturn)
{
exclusiveLowerBound.AssertUtc("exclusiveLowerBound");
weeklyReleaseSchedule.AssertNotNull("weeklyReleaseSchedule");
numberOfLiveDatesToReturn.AssertNonNegative("numberOfLiveDatesToReturn");
var startTimeWithWeekReset = new DateTime(
exclusiveLowerBound.Year,
exclusiveLowerBound.Month,
exclusiveLowerBound.Day,
0,
0,
0,
DateTimeKind.Utc)
.AddDays(-1 * (int)exclusiveLowerBound.DayOfWeek);
var ascendingWeeklyReleaseTimes = weeklyReleaseSchedule.Value;
var releasesPerWeek = ascendingWeeklyReleaseTimes.Count;
var currentHourOfWeek = HourOfWeek.Parse(exclusiveLowerBound).Value;
var nextReleaseTimeAfterCurrentTime = ascendingWeeklyReleaseTimes.FirstOrDefault(_ => _.Value > currentHourOfWeek);
var startFromNextWeek = nextReleaseTimeAfterCurrentTime == null;
var releaseTimeIndexOffset = startFromNextWeek ? releasesPerWeek : ascendingWeeklyReleaseTimes.IndexOf(nextReleaseTimeAfterCurrentTime);
var result = new List <DateTime>();
for (var i = releaseTimeIndexOffset; i < numberOfLiveDatesToReturn + releaseTimeIndexOffset; i++)
{
var weeksFilled = i / releasesPerWeek;
var releaseTimeIndex = i % releasesPerWeek;
var releaseHourOfWeek = ascendingWeeklyReleaseTimes[releaseTimeIndex].Value;
var releaseWeek = startTimeWithWeekReset.AddDays(weeksFilled * 7);
var releaseTime = releaseWeek.AddHours(releaseHourOfWeek);
result.Add(releaseTime);
}
return(result);
}