public Task<List<VisualBubble>> FetchNext()
{
return Task.Factory.StartNew<List<VisualBubble>>(() =>
{
if (_endReached)
return null;
lock (BubbleGroupDatabase.OperationLock)
{
var groups = BubbleGroupManager.GetInner(_group);
var groupCursors = groups.Select(@group => new Tuple<BubbleGroup, long>(@group, -1)).ToList();
var allBubbles = new List<VisualBubble>();
var handles = OpenDatabaseStreams(groups).ToList();
GetMoreBubbles:
var result = LoadDatabaseBubblesOnUnitInto(groups, _day, handles, groupCursors, _selection.BubbleTypes, _selection.Comparer);
var bubbles = result.Item1;
if (bubbles != null)
{
allBubbles.AddRange(bubbles);
}
groupCursors = result.Item2;
_day++;
var endReached = result.Item2.Count(cursor => cursor.Item2 == -2);
if (endReached == result.Item2.Count)
{
_endReached = true;
goto ReturnResult;
}
if (bubbles == null)
{
goto GetMoreBubbles;
}
if (allBubbles.Count < 100)
{
goto GetMoreBubbles;
}
ReturnResult:
CloseDatabaseStreams(handles);
allBubbles.TimSort((x, y) => -x.Time.CompareTo(y.Time));
return allBubbles;
}
});
}
private static void Populate(UnifiedBubbleGroup unified)
{
var innerGroupsCursors = unified.Groups.Select(@group => new Tuple<BubbleGroup, long>(@group, -1)).ToList();
var allBubbles = new List<VisualBubble>();
var day = 1;
var handles = OpenDatabaseStreams(unified).ToList();
GetMoreBubbles:
var result = LoadDatabaseBubblesOnUnitInto(unified, day, handles, innerGroupsCursors);
innerGroupsCursors = result.Item2;
day++;
var bubbles = result.Item1;
if (bubbles != null)
{
allBubbles.AddRange(bubbles);
}
var endReached = result.Item2.Count(cursor => cursor.Item2 == -2);
if (endReached == result.Item2.Count)
{
goto End;
}
if (bubbles == null)
{
goto GetMoreBubbles;
}
if (allBubbles.Count < 100)
{
goto GetMoreBubbles;
}
End:
CloseDatabaseStreams(handles);
allBubbles.TimSort((x, y) => x.Time.CompareTo(y.Time));
Func<VisualBubble, VisualBubble> tryFindRealBubble = incoming =>
{
foreach (var bubble in
unified.Groups.SelectMany(@group => @group.Where(bubble => bubble.ID == incoming.ID)))
{
return bubble;
}
return incoming;
};
for (var i = 0; i < allBubbles.Count; i++)
{
allBubbles[i] = tryFindRealBubble(allBubbles[i]);
}
unified.Bubbles.Clear();
foreach (var bubble in allBubbles)
{
unified.Bubbles.Add(bubble);
}
unified.UnifiedGroupLoaded = true;
}
