org.optaweb.vehiclerouting.plugin.planner

Class SolverManager

java.lang.Object

org.optaweb.vehiclerouting.plugin.planner.SolverManager

All Implemented Interfaces:

EventListener, org.optaplanner.core.api.solver.event.SolverEventListener<VehicleRoutingSolution>

@Component(value="optaweb-solver-manager")
class SolverManager
extends Object
implements org.optaplanner.core.api.solver.event.SolverEventListener<VehicleRoutingSolution>

Manages a solver running in a different thread.

Does following:

• Starts solver by running Solver.solve(Object problem) in a thread that's not the caller's thread.
• Stops the solver (synchronously).
• Adds problem fact changes to the solver.
• Propagates any exception that happens in Solver.solver() (in a different thread) to the thread that interacts with SolverManager.
• Listens for best solution changes and publishes new best solutions via RouteChangedEventPublisher.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
(package private) static interface	SolverManager.SolvingTask An alias interface that fixates the Callable's type parameter.

Constructor Summary

Constructors

Constructor and Description
SolverManager(org.optaplanner.core.api.solver.Solver<VehicleRoutingSolution> solver, org.springframework.core.task.AsyncListenableTaskExecutor executor, RouteChangedEventPublisher routeChangedEventPublisher, org.springframework.context.ApplicationEventPublisher eventPublisher)

Method Summary

Modifier and Type	Method and Description
(package private) void	addVehicle(PlanningVehicle vehicle)
(package private) void	addVisit(PlanningVisit visit)
void	bestSolutionChanged(org.optaplanner.core.api.solver.event.BestSolutionChangedEvent<VehicleRoutingSolution> bestSolutionChangedEvent)
(package private) void	changeCapacity(PlanningVehicle vehicle)
(package private) void	removeVehicle(PlanningVehicle vehicle)
(package private) void	removeVisit(PlanningVisit visit)
(package private) void	startSolver(VehicleRoutingSolution solution)
(package private) void	stopSolver()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SolverManager

@Autowired
SolverManager(org.optaplanner.core.api.solver.Solver<VehicleRoutingSolution> solver,
                         org.springframework.core.task.AsyncListenableTaskExecutor executor,
                         RouteChangedEventPublisher routeChangedEventPublisher,
                         org.springframework.context.ApplicationEventPublisher eventPublisher)

Method Detail

bestSolutionChanged

public void bestSolutionChanged(org.optaplanner.core.api.solver.event.BestSolutionChangedEvent<VehicleRoutingSolution> bestSolutionChangedEvent)

Specified by:

bestSolutionChanged in interface org.optaplanner.core.api.solver.event.SolverEventListener<VehicleRoutingSolution>

startSolver

void startSolver(VehicleRoutingSolution solution)

stopSolver

void stopSolver()

addVisit

void addVisit(PlanningVisit visit)

removeVisit

void removeVisit(PlanningVisit visit)

addVehicle

void addVehicle(PlanningVehicle vehicle)

removeVehicle

void removeVehicle(PlanningVehicle vehicle)

changeCapacity

void changeCapacity(PlanningVehicle vehicle)