public static IEnumerable <ProjectTaskTimephasedRule> GenerateTimephasedRules(this IEnumerable <ProjectTaskTimeSheet> timesheets)
{
ProjectTaskTimeSheet prevTimesheet = null;
ProjectTaskTimephasedRule rule = null;
foreach (var timesheet in timesheets.OrderBy(ts => ts.TaskId).ThenBy(ts => ts.StartTime))
{
var populateRule = (prevTimesheet == null) || (prevTimesheet.TaskId != timesheet.TaskId) ||
(prevTimesheet.PlanWeightValue != timesheet.PlanWeightValue);
if (populateRule)
{
if (rule != null)
{
yield return(rule);
}
rule = new ProjectTaskTimephasedRule(timesheet.ProjectId, timesheet.TaskId)
{
TimeRange = new TimeRange(timesheet.StartTime, TimeSpan.FromDays(1)),
WeightValue = timesheet.PlanWeightValue
};
}
else
{
rule.TimeRange.End = timesheet.EndTime;
rule.WeightValue += timesheet.PlanWeightValue;
}
prevTimesheet = timesheet;
}
if (rule != null)
{
yield return(rule);
}
}
public static IEnumerable <ProjectTaskTimephasedRule> GenerateTimephasedRulesAsParallel(
this IEnumerable <ProjectTaskTimeSheet> timesheets)
{
var timesheetList = timesheets.ToList();
#if !SILVERLIGHT
return
(timesheets
.Select(x => x.TaskId)
.Distinct()
.AsParallel()
.AsOrdered()
.SelectMany(taskId => {
ProjectTaskTimeSheet prevTimesheet = null;
ProjectTaskTimephasedRule rule = null;
var rules = new List <ProjectTaskTimephasedRule>();
foreach (var timesheet in timesheetList.Where(x => x.TaskId == taskId))
{
var populateRule = (prevTimesheet == null) ||
(prevTimesheet.PlanWeightValue != timesheet.PlanWeightValue);
if (populateRule)
{
rule = new ProjectTaskTimephasedRule(timesheet.ProjectId, timesheet.TaskId)
{
TimeRange = new TimeRange(timesheet.StartTime, TimeSpan.FromDays(1)),
WeightValue = timesheet.PlanWeightValue
};
rules.Add(rule);
}
else
{
rule.TimeRange.End = timesheet.EndTime;
rule.WeightValue += timesheet.PlanWeightValue;
}
prevTimesheet = timesheet;
}
return rules;
}));
#else
var rules = new List <ProjectTaskTimephasedRule>();
object _syncLock = new object();
Parallel.ForEach(timesheetList.Select(x => x.TaskId).Distinct(),
() => new List <ProjectTaskTimephasedRule>(),
(taskId, loop, localRules) =>
{
ProjectTaskTimeSheet prevTimesheet = null;
ProjectTaskTimephasedRule rule = null;
foreach (var timesheet in timesheetList.Where(x => x.TaskId == taskId))
{
var populateRule = (prevTimesheet == null) || (prevTimesheet.PlanWeightValue != timesheet.PlanWeightValue);
if (populateRule)
{
rule = new ProjectTaskTimephasedRule(timesheet.ProjectId, timesheet.TaskId)
{
TimeRange = new TimeRange(timesheet.StartTime, TimeSpan.FromDays(1)),
WeightValue = timesheet.PlanWeightValue
};
localRules.Add(rule);
}
else
{
rule.TimeRange.End = timesheet.EndTime;
rule.WeightValue += timesheet.PlanWeightValue;
}
prevTimesheet = timesheet;
}
return(localRules);
},
localRules =>
{
lock (_syncLock)
rules.AddRange(localRules);
});
return(rules.OrderBy(r => r.TaskId).ThenBy(r => r.TimeRange.Start));
#endif
}