public async Task <IOperationCost> GetActivitiesForAccountAsync(long accountId)
{
var result = new GroupOperationCost($"GetActivitiesForAccountAsync({accountId})");
await FetchAllMatchingActivities(activity => activity.AccountId == accountId, result);
return(result);
}
public Task <GroupOperationCost> DoAsync(IStore store, CancellationToken cancellationToken)
{
List <Task> taskList = new List <Task>();
GroupOperationCost cost = new GroupOperationCost("Save activity");
foreach (var activity in _activities)
{
var task = store
.PersistActivityAsync(activity, cancellationToken)
.ContinueWith(t => cost.StepCosts.Add(t.Result), cancellationToken);
taskList.Add(task);
}
return(Task.WhenAll(taskList).ContinueWith(t => cost, cancellationToken));
}
public Task <GroupOperationCost> DoAsync(IStore store, CancellationToken cancellationToken)
{
return(Task.Run(async() =>
{
var cost = new GroupOperationCost("Aggregate Activities");
foreach (var accountId in NumberRange.ToInts(_config.AccountIds))
{
if (cancellationToken.IsCancellationRequested)
{
break;
}
var operationCost = await store.GetLatestActivitiesAsync(accountId);
cost.StepCosts.Add(operationCost);
}
return cost;
}, cancellationToken));
}
private async Task FetchAllMatchingActivities(Expression <Func <Activity, bool> > selection, GroupOperationCost groupOperationCost)
{
CosmosClientQueryResult <Activity> page = null;
do
{
page = await FetchPageOfActivities(selection, page?.ContinuationToken);
groupOperationCost.StepCosts.Add(page.Cost);
}while (page.ContinuationToken != null);
}
