private static void FindMissingChaosParameterReferences(ChaosSchedule schedule)
{
bool hasError = false;
var squashedSchedule = ChaosSchedulerUtil.GetSortedChaosScheduleItemsList(schedule);
var errorStrings = new List <string>()
{
StringResources.ChaosScheduler_NonExistentChaosParameter
};
foreach (DayOfWeek day in ChaosSchedule.AllDaysOfWeek)
{
var dayErrors = ChaosSchedulerUtil.FindMissingChaosParameterReferencesForDay(schedule, squashedSchedule[day]);
var dayHasError = dayErrors.Count > 0;
hasError = hasError || dayHasError;
if (dayHasError)
{
errorStrings.Add(string.Format("{0}: {1}", Enum.GetName(typeof(DayOfWeek), day), JsonConvert.SerializeObject(dayErrors)));
}
}
if (hasError)
{
throw new System.ArgumentException(string.Join("\n", errorStrings).Replace(", [", ",\n["));
}
}
private static void FindScheduleConflicts(ChaosSchedule schedule)
{
bool hasError = false;
var squashedSchedule = ChaosSchedulerUtil.GetSortedChaosScheduleItemsList(schedule);
var errorString = new StringBuilder();
foreach (DayOfWeek day in ChaosSchedule.AllDaysOfWeek)
{
var conflicts = ChaosSchedulerUtil.FindScheduleConflictsForDay(squashedSchedule[day]);
bool dayHasError = conflicts.Count > 0;
hasError = hasError || dayHasError;
if (dayHasError)
{
errorString.AppendLine(string.Format("{0} :\n{1}", Enum.GetName(typeof(DayOfWeek), day), ChaosSchedulerUtil.PrettyPrintScheduleConflicts(conflicts)));
}
}
if (hasError)
{
var ret = string.Format("{0}\n \n{1}", errorString.ToString(), StringResources.ChaosScheduler_ScheduleConflict);
if (ret.Length > Constants.ErrorMessageMaxCharLength)
{
var moreString = string.Format("...\n \n{0}\n{1}\n", StringResources.ChaosScheduler_ScheduleConflict, StringResources.ChaosScheduler_MoreScheduleConflicts);
ret = ret.Substring(0, Constants.ErrorMessageMaxCharLength - moreString.Length) + moreString;
}
throw new System.ArgumentException(ret);
}
}
internal ChaosScheduleEventInstancesEnumerator(ChaosSchedule schedule, DateTime dayInWeek)
{
/*
* ChaosScheduleEventInstancesEnumerator that returns event instances based on the schedule definition.
* Schedules repeat on a weekly basis starting with Sunday as the first day of the week.
*
* In order to generate the event instances:
* 1. Determine the starting Sunday of the week for which dayInWeek is in. This is the starting datetime of that week's repetition cycle.
* 2. Convert the ChaosScheduleJobs of the schedule to a list of ChaosScheduleItems for each day of the week.
* 3. Turn each schedule item into an ChaosScheduleEventInstance by using the day of the week and time as an offset to the starting Sunday
* 4. Left join event instances if the start time of the future event is within one minute of the previous event's end time and they use the same ChaosParameters
* 5. If there are 2 or more event instances left, join the last item to the first item if the last item's endtime is within a minute of the first item's start time plus a week (next cycle start).
* 6. If there is 1 event instance left and it's end time is within one minute of it's start time plus 7 days (one cycle), then this event continues itself and
* should be just one long run until the schedule expires, so set the end time to the schedule's expiry date
*/
this.position = -1;
this.eventInstances = new List <ChaosScheduleEventInstance>();
while (dayInWeek.DayOfWeek != DayOfWeek.Sunday)
{
dayInWeek = dayInWeek.AddDays(-1);
}
// dayInWeek is now the start of Sunday of the week.
dayInWeek = new DateTime(dayInWeek.Year, dayInWeek.Month, dayInWeek.Day, 0, 0, 0, 0, DateTimeKind.Utc);
var squashedSchedule = ChaosSchedulerUtil.GetSortedChaosScheduleItemsList(schedule);
var fullEventInstances = new List <ChaosScheduleEventInstance>();
foreach (DayOfWeek dayOfWeek in new List <DayOfWeek>()
{
DayOfWeek.Sunday, DayOfWeek.Monday, DayOfWeek.Tuesday, DayOfWeek.Wednesday, DayOfWeek.Thursday, DayOfWeek.Friday, DayOfWeek.Saturday
})
{
foreach (ChaosScheduleItem scheduleEvent in squashedSchedule[dayOfWeek])
{
fullEventInstances.Add(
new ChaosScheduleEventInstance(
scheduleEvent.ChaosParameters,
schedule.ChaosParametersDictionary[scheduleEvent.ChaosParameters],
dayInWeek.Add(new TimeSpan(scheduleEvent.Time.StartTime.Hour, scheduleEvent.Time.StartTime.Minute, 0)),
dayInWeek.Add(new TimeSpan(scheduleEvent.Time.EndTime.Hour, scheduleEvent.Time.EndTime.Minute, 0))));
}
dayInWeek = dayInWeek.AddDays(1);
}
foreach (var eventInstance in fullEventInstances)
{
if (this.eventInstances.Count == 0)
{
this.eventInstances.Add(eventInstance);
}
else
{
var lastEventInstance = this.eventInstances[this.eventInstances.Count - 1];
if (eventInstance.Start - lastEventInstance.End <= new TimeSpan(0, 1, 0) && lastEventInstance.ChaosParametersReferenceName == eventInstance.ChaosParametersReferenceName)
{
lastEventInstance.End = eventInstance.End;
}
else
{
this.eventInstances.Add(eventInstance);
}
}
}
if (this.eventInstances.Count > 1)
{
if (this.eventInstances[0].Start.AddDays(7) - this.eventInstances[this.eventInstances.Count - 1].End <= new TimeSpan(0, 1, 0))
{
this.eventInstances[0].Start = this.eventInstances[this.eventInstances.Count - 1].Start.AddDays(-7);
this.eventInstances.RemoveAt(this.eventInstances.Count - 1);
}
}
if (this.eventInstances.Count == 1 && this.eventInstances[0].Start.AddDays(7) - this.eventInstances[0].End <= new TimeSpan(0, 1, 0))
{
this.eventInstances[0].End = new DateTime(schedule.ExpiryDate.Ticks, DateTimeKind.Utc);
}
}