public void Rebuild(int simulationId, ProductionDomainContext evaluationContext)
{
//delete all demands but the head-demands
_context.Demands.RemoveRange(_context.Demands.Where(a => (a.DemandRequesterId != null || a.GetType() == typeof(DemandProductionOrderBom)) && a.State != State.Finished).ToList());
_context.ProductionOrderBoms.RemoveRange(_context.ProductionOrderBoms.Where(a => a.State != State.Finished));
_context.SaveChanges();
var requester = _context.Demands.Where(a => null == a.DemandRequesterId &&
a.State != State.Finished).ToList();
requester = (from req in requester
where req.GetType() == typeof(DemandStock) ||
_context.GetDueTimeByOrder(req) < _context.SimulationConfigurations.Single(a => a.Id == simulationId).Time
+ _context.SimulationConfigurations.Single(a => a.Id == simulationId).MaxCalculationTime
select req).ToList();
//rebuild by using activity-slack to order demands
while (requester.Any())
{
var nextRequester = GetNextByActivitySlack(requester, simulationId);
SatisfyRequest(nextRequester, simulationId, evaluationContext);
requester.Remove(requester.Find(a => a.Id == nextRequester.Id));
}
}