public static ValueTask <IActionResult> SynchronizePartitionAsync(this IActionResult result, DbTable dbTable, DbPartition partitionToSave,
DataSynchronizationPeriod period)
{
if (ServiceLocator.SnapshotStorage == null)
{
return(new ValueTask <IActionResult>(result));
}
if (period == DataSynchronizationPeriod.Immediately)
{
var partitionSnapshot = PartitionSnapshot.Create(dbTable, partitionToSave);
return(result.ResponseWithActionAsync(() => ServiceLocator
.SnapshotStorage
.SavePartitionSnapshotAsync(partitionSnapshot)));
}
ServiceLocator.SnapshotSaverScheduler.SynchronizePartition(dbTable, partitionToSave, period);
return(new ValueTask <IActionResult>(result));
}
public async Task TheLoop()
{
await LoadSnapshotsAsync();
while (!_appIsShuttingDown || ServiceLocator.SnapshotSaverScheduler.TasksToSyncCount() > 0)
{
try
{
var elementToSave = ServiceLocator.SnapshotSaverScheduler.GetTaskToSync(_appIsShuttingDown);
while (elementToSave != null)
{
switch (elementToSave)
{
case SyncTable syncTable:
await ServiceLocator.SnapshotStorage.SaveTableSnapshotAsync(syncTable.DbTable);
break;
case SyncPartition syncPartition:
var partitionSnapshot = PartitionSnapshot.Create(syncPartition.DbTable, syncPartition.DbPartition);
await ServiceLocator.SnapshotStorage.SavePartitionSnapshotAsync(partitionSnapshot);
break;
case SyncDeletePartition syncDeletePartition:
await ServiceLocator.SnapshotStorage.DeleteTablePartitionAsync(syncDeletePartition.TableName,
syncDeletePartition.PartitionKey);
break;
}
elementToSave = ServiceLocator.SnapshotSaverScheduler.GetTaskToSync(_appIsShuttingDown);
}
}
catch (Exception e)
{
Console.WriteLine("There is something wrong during saving the snapshot. " + e.Message);
}
}
