/// <summary>
/// Converts this time zone definition into a TimeZoneInfo structure.
/// </summary>
/// <param name="service">The service.</param>
/// <returns>A TimeZoneInfo representing the same time zone as this definition.</returns>
internal Misc.CustomTimeZoneInfo ToTimeZoneInfo(ExchangeService service)
{
this.Validate();
Misc.CustomTimeZoneInfo result;
// Retrieve the base offset to UTC, standard and daylight display names from
// the last transition group, which is the one that currently applies given that
// transitions are ordered chronologically.
TimeZoneTransitionGroup.CustomTimeZoneCreateParams creationParams =
this.transitions[this.transitions.Count - 1].TargetGroup.GetCustomTimeZoneCreationParams();
List <Misc.AdjustmentRule> adjustmentRules = new List <Misc.AdjustmentRule>();
DateTime startDate = DateTime.MinValue;
DateTime endDate;
DateTime effectiveEndDate;
for (int i = 0; i < this.transitions.Count; i++)
{
if (i < this.transitions.Count - 1)
{
endDate = (this.transitions[i + 1] as AbsoluteDateTransition).DateTime;
effectiveEndDate = endDate.AddDays(-1);
}
else
{
endDate = DateTime.MaxValue;
effectiveEndDate = endDate;
}
// OM:1648848 Due to bad timezone data from clients the
// startDate may not always come before the effectiveEndDate
if (startDate < effectiveEndDate)
{
Misc.AdjustmentRule adjustmentRule = this.transitions[i].TargetGroup.CreateAdjustmentRule(startDate, effectiveEndDate);
if (adjustmentRule != null)
{
adjustmentRules.Add(adjustmentRule);
}
startDate = endDate;
}
else
{
service.TraceMessage(
TraceFlags.EwsTimeZones,
string.Format(
"The startDate '{0}' is not before the effectiveEndDate '{1}'. Will skip creating adjustment rule.",
startDate,
effectiveEndDate));
}
}
if (adjustmentRules.Count == 0)
{
// If there are no adjustment rule, the time zone does not support Daylight
// saving time.
result = Misc.CustomTimeZoneInfo.CreateCustomTimeZone(
this.Id,
creationParams.BaseOffsetToUtc,
this.Name,
creationParams.StandardDisplayName);
}
else
{
result = Misc.CustomTimeZoneInfo.CreateCustomTimeZone(
this.Id,
creationParams.BaseOffsetToUtc,
this.Name,
creationParams.StandardDisplayName,
creationParams.DaylightDisplayName,
adjustmentRules.ToArray());
}
return(result);
}
/// <summary>
/// Loads from json.
/// </summary>
/// <param name="jsonProperty">The json property.</param>
/// <param name="service">The service.</param>
internal override void LoadFromJson(JsonObject jsonProperty, ExchangeService service)
{
base.LoadFromJson(jsonProperty, service);
foreach (string key in jsonProperty.Keys)
{
switch (key)
{
case XmlAttributeNames.Name:
this.name = jsonProperty.ReadAsString(key);
break;
case XmlAttributeNames.Id:
this.id = jsonProperty.ReadAsString(key);
break;
case XmlElementNames.Periods:
foreach (object jsonPeriod in jsonProperty.ReadAsArray(key))
{
TimeZonePeriod period = new TimeZonePeriod();
period.LoadFromJson(jsonPeriod as JsonObject, service);
// OM:1648848 Bad timezone data from clients can include duplicate rules
// for one year, with duplicate ID. In that case, let the first one win.
if (!this.periods.ContainsKey(period.Id))
{
this.periods.Add(period.Id, period);
}
else
{
service.TraceMessage(
TraceFlags.EwsTimeZones,
string.Format(
"An entry with the same key (Id) '{0}' already exists in Periods. Cannot add another one. Existing entry: [Name='{1}', Bias='{2}']. Entry to skip: [Name='{3}', Bias='{4}'].",
period.Id,
this.Periods[period.Id].Name,
this.Periods[period.Id].Bias,
period.Name,
period.Bias));
}
}
break;
case XmlElementNames.TransitionsGroups:
foreach (object arrayOfTransitionsTypeInstance in jsonProperty.ReadAsArray(key))
{
TimeZoneTransitionGroup transitionGroup = new TimeZoneTransitionGroup(this);
transitionGroup.LoadFromJson(arrayOfTransitionsTypeInstance as JsonObject, service);
this.transitionGroups.Add(transitionGroup.Id, transitionGroup);
}
break;
case XmlElementNames.Transitions:
JsonObject arrayOfTransitionsType = jsonProperty.ReadAsJsonObject(key);
foreach (object uncastJsonTransition in arrayOfTransitionsType.ReadAsArray(XmlElementNames.Transition))
{
JsonObject jsonTransition = uncastJsonTransition as JsonObject;
TimeZoneTransition transition = TimeZoneTransition.Create(this, jsonTransition.ReadTypeString());
transition.LoadFromJson(jsonTransition, service);
this.transitions.Add(transition);
}
break;
default:
break;
}
}
// EWS can return a TimeZone definition with no Id. Generate a new Id in this case.
if (string.IsNullOrEmpty(this.id))
{
string nameValue = string.IsNullOrEmpty(this.Name) ? string.Empty : this.Name;
this.Id = NoIdPrefix + Math.Abs(nameValue.GetHashCode()).ToString();
}
this.transitions.Sort(this.CompareTransitions);
}
