예제 #1
0
        /// <summary>
        /// Converts this time zone definition into a TimeZoneInfo structure.
        /// </summary>
        /// <returns>A TimeZoneInfo representing the same time zone as this definition.</returns>
        internal TimeZoneInfo ToTimeZoneInfo()
        {
            this.Validate();

            TimeZoneInfo 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 <TimeZoneInfo.AdjustmentRule> adjustmentRules = new List <TimeZoneInfo.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;
                }

                TimeZoneInfo.AdjustmentRule adjustmentRule = this.transitions[i].TargetGroup.CreateAdjustmentRule(startDate, effectiveEndDate);

                if (adjustmentRule != null)
                {
                    adjustmentRules.Add(adjustmentRule);
                }

                startDate = endDate;
            }

            if (adjustmentRules.Count == 0)
            {
                // If there are no adjustment rule, the time zone does not support Daylight
                // saving time.
                result = TimeZoneInfo.CreateCustomTimeZone(
                    this.Id,
                    creationParams.BaseOffsetToUtc,
                    this.Name,
                    creationParams.StandardDisplayName);
            }
            else
            {
                result = TimeZoneInfo.CreateCustomTimeZone(
                    this.Id,
                    creationParams.BaseOffsetToUtc,
                    this.Name,
                    creationParams.StandardDisplayName,
                    creationParams.DaylightDisplayName,
                    adjustmentRules.ToArray());
            }

            return(result);
        }
예제 #2
0
        /// <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);
        }