private Int64 GetStartCheckpointForSlot(string slotName)
{
Int64 min = Int64.MaxValue;
if (RebuildSettings.ShouldRebuild)
{
throw new JarvisFrameworkEngineException("Projection engine is not used anymore for rebuild. Rebuild is done with the specific RebuildProjectionEngine");
}
if (_projectionsBySlot.TryGetValue(slotName, out var projections))
{
foreach (var projection in projections)
{
var checkpointToken = _checkpointTracker.GetFullCheckpoint(projection);
long currentValue = checkpointToken?.Current ?? 0L;
if (checkpointToken?.Current == null && checkpointToken?.Value > 0)
{
throw new JarvisFrameworkEngineException(
$"Slot {slotName} for projection {projection.Info.CommonName} has current value equal to null and Value equal to {checkpointToken.Value}. This identify an interrupted rebuild, the slot MUST be rebuilded");
}
if (currentValue < min)
{
min = currentValue;
}
}
}
return(min);
}