[jboss-jira] [JBoss JIRA] (JBRULES-3450) Planner: Terminate Solver as soon as a feasible score is found

[Geoffrey De Smet (JIRA)]

Geoffrey De Smet created JBRULES-3450:
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             Summary: Planner: Terminate Solver as soon as a feasible score is found
                 Key: JBRULES-3450
                 URL: https://issues.jboss.org/browse/JBRULES-3450
             Project: Drools
          Issue Type: Feature Request
      Security Level: Public (Everyone can see)
          Components: drools-planner
            Reporter: Geoffrey De Smet
            Priority: Minor


[This is a newbie contributor issue: it's easy to solve for new contributors]

HardAndSoftScore has a method isFeasible(), but it's currently hard to specify that a solver should terminate when a feasible score is attained, because you have to use Integer.MIN_VALUE:
{code}
<termination>
  <scoreAttained>0hard/-2147483648soft</scoreAttained>
<termination>
{code}

Adjust org.drools.planner.config.termination.TerminationConfig
to support this:
{code}
<termination>
  <hardAndSoftScoreFeasible>true</hardAndSoftScoreFeasible>
<termination>
{code}

And copy org.drools.planner.core.termination.ScoreAttainedTermination
to org.drools.planner.core.termination.HardAndSoftScoreFeasibleTermination
to implement it.
Note: the Score will need to be cast to HardAndSoftScore.

Bonus points: write a unit test for it (for inspiration, look at PlanningEntityTabuAcceptorTest).


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