[SOLVED] How to calculate return to depot time and make it hard constraint

How to calculate return to depot time and make it hard constraint

I am using the TimeWindowed version of the vehicle routing and I added to the vehicle an endOfShift time. I want to calculate the time of return to depot and make it hard constraint. The returnToDepotTime is calculate in the ArrivalTimeUpdatingVariableListener, and I also changed the drl file I added

rule "returnToDepotBeforeEndOfShift"
when
    Vehicle(endOfShift < returnToDepotTime, $endOfShift : endOfShift, $returnToDepotTime : returnToDepotTime)
then
    scoreHolder.addHardConstraintMatch(kcontext, $endOfShift - $returnToDepotTime.intValue());  end

The problem is that OptaPlanner does not take returnToDepotTime into consideration and it is calculated but not taken by the hard constrains calculation. Any idea what to change?

Solution

Adjust the ArrivalTimeUpdatingVariableListener to also adjust the Vehicle's returnHomeTime for the Customer where getNextCustomer() is null.

If the scoreDirector is properly notified (before/afterVarChanged methods) that the Vehicle's returnHomeTime changed, the rules will update accordingly.