public Task <GetManyResult> GetManyAsync(
Guid clientGuid,
string domain,
FactTreeMemento tree,
Dictionary <long, long> pivotIds,
int timeoutSeconds)
{
GetManyResult result = GetManyInternal(clientGuid, domain, tree, pivotIds);
if (timeoutSeconds > 0 && !result.Tree.Facts.Any())
{
CancellationTokenSource cancellation = new CancellationTokenSource();
int session = _messageBus.Register(
domain,
result.LocalPivotIds,
clientGuid,
() => cancellation.Cancel());
return(Task
.Delay(timeoutSeconds * 1000, cancellation.Token)
.ContinueWith(t => t.IsCanceled
? GetManyInternal(clientGuid, domain, tree, pivotIds)
: result)
.ContinueWith(t =>
{
_messageBus.Unregister(session);
cancellation.Dispose();
return t.Result;
}));
}
return(Task.FromResult(result));
}
private GetManyResult GetManyInternal(Guid clientGuid, string domain, FactTreeMemento tree, Dictionary <long, long> pivotIds)
{
var localPivotIds = new List <FactID>();
FactTreeMemento messageBody = new FactTreeMemento(0);
Dictionary <FactID, FactID> localIdByRemoteId = ForEachFact(tree, fact =>
_repository.Save(domain, fact, clientGuid));
Dictionary <long, long> newPivotIds = new Dictionary <long, long>();
foreach (var pivot in pivotIds)
{
long remotePivotId = pivot.Key;
FactID localPivotId;
long pivotValue = pivot.Value;
TimestampID timestamp = new TimestampID(0, pivotValue);
if (localIdByRemoteId.TryGetValue(new FactID {
key = remotePivotId
}, out localPivotId))
{
List <FactID> recentMessages = _repository.LoadRecentMessages(domain, localPivotId, clientGuid, timestamp);
foreach (FactID recentMessage in recentMessages)
{
AddToFactTree(domain, messageBody, recentMessage, localIdByRemoteId);
if (recentMessage.key > pivotValue)
{
pivotValue = recentMessage.key;
}
}
newPivotIds[remotePivotId] = pivotValue;
localPivotIds.Add(localPivotId);
}
}
foreach (var pivot in newPivotIds)
{
pivotIds[pivot.Key] = pivot.Value;
}
var result = new GetManyResult()
{
Tree = messageBody,
PivotIds = pivotIds,
LocalPivotIds = localPivotIds
};
return(result);
}
private GetManyResult GetManyInternal(Guid clientGuid, string domain, FactTreeMemento tree, Dictionary<long, long> pivotIds)
{
var localPivotIds = new List<FactID>();
FactTreeMemento messageBody = new FactTreeMemento(0);
Dictionary<FactID, FactID> localIdByRemoteId = ForEachFact(tree, fact =>
_repository.Save(domain, fact, clientGuid));
Dictionary<long, long> newPivotIds = new Dictionary<long, long>();
foreach (var pivot in pivotIds)
{
long remotePivotId = pivot.Key;
FactID localPivotId;
long pivotValue = pivot.Value;
TimestampID timestamp = new TimestampID(0, pivotValue);
if (localIdByRemoteId.TryGetValue(new FactID { key = remotePivotId }, out localPivotId))
{
List<FactID> recentMessages = _repository.LoadRecentMessages(domain, localPivotId, clientGuid, timestamp);
foreach (FactID recentMessage in recentMessages)
{
AddToFactTree(domain, messageBody, recentMessage, localIdByRemoteId);
if (recentMessage.key > pivotValue)
pivotValue = recentMessage.key;
}
newPivotIds[remotePivotId] = pivotValue;
localPivotIds.Add(localPivotId);
}
}
foreach (var pivot in newPivotIds)
pivotIds[pivot.Key] = pivot.Value;
var result = new GetManyResult()
{
Tree = messageBody,
PivotIds = pivotIds,
LocalPivotIds = localPivotIds
};
return result;
}