/// <summary>
/// Manage workers for tile groups for days where emerging tiles are no longer tracked.
/// </summary>
/// <param name="groups"></param>
/// <remarks>
/// The function manages workers for tile groups on days that are beyond some threshold for monitoring emerging tiles. If this group does
/// not yet have a monitor a worker that only iterates existing tiles is created. If this group has an emerging tile worker because it was
/// below the threshold when originally created that emerging worker is halted.
/// </remarks>
private void UpdateHistorialTileGroupWorkers(IEnumerable<TileGroup> groups)
{
foreach (var tileGroup in groups)
{
TileGroupEmergingWorker worker;
if (_discoveryWorkers.TryGetValue(tileGroup, out worker))
{
if (worker.DiscontinueWatching())
{
_discoveryWorkers.TryRemove(tileGroup, out worker);
Trace.TraceInformation(String.Format("\t\tHalted emerging Tile Group worker for {0}", tileGroup.FullPath));
worker.Dispose();
}
}
else
{
Trace.TraceInformation(String.Format("\t\tNot starting emerging Tile Group worker for {0}", tileGroup.FullPath));
TileGroupExistingWorker independentExistingWorker;
if (!_existingOnlyWorkers.TryGetValue(tileGroup, out independentExistingWorker))
{
independentExistingWorker = new TileGroupExistingWorker(tileGroup, _existingTileQueue);
independentExistingWorker.ExpectedChannelCount = Model.ExpectedChannelCount;
independentExistingWorker.MinTiffFileSize = Model.MinTiffFileSize;
if (_existingOnlyWorkers.TryAdd(tileGroup, independentExistingWorker))
{
Trace.TraceInformation(String.Format("Iterating existing tiles in {0}.", tileGroup.FullPath));
// TODO Make cancellable for Stop in the middle.
independentExistingWorker.Run();
}
else
{
Trace.TraceInformation(String.Format("Skipping iteration of existing tiles in {0}. This group has already been scanned.", tileGroup.FullPath));
}
}
else
{
Trace.TraceInformation(String.Format("Skipping iteration of existing tiles in {0}. This group has already been scanned.", tileGroup.FullPath));
}
}
}
}
protected override bool QueueFiles()
{
_debounceTimer.Enabled = true;
_watcher.EnableRaisingEvents = true;
_existingWorker = new TileGroupExistingWorker(Group, _existingQueue);
_existingWorker.ExpectedChannelCount = this.ExpectedChannelCount;
_existingWorker.MinTiffFileSize = this.MinTiffFileSize;
_existingWorker.Run();
return false;
}