org.kie.server.services.taskassigning.planning

Class SolutionSynchronizer

java.lang.Object

org.kie.server.services.taskassigning.planning.RunnableBase

org.kie.server.services.taskassigning.planning.SolutionSynchronizer

All Implemented Interfaces:

Runnable

public class SolutionSynchronizer
extends RunnableBase

This class manages the periodical reading (polling strategy) of current tasks from the jBPM runtime and depending on the "action" INIT_SOLVER_EXECUTOR / SYNCHRONIZE_SOLUTION determines if the solver executor must be restarted with a fully recovered solution or instead the tasks updated information is used for calculating the required changes for the proper solution update. If any changes are calculated they are notified to the resultConsumer. This class implements proper retries in case of connection issues with the target jBPM runtime, etc.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SolutionSynchronizer.Result

Nested classes/interfaces inherited from class org.kie.server.services.taskassigning.planning.RunnableBase

RunnableBase.Status

Field Summary

Fields inherited from class org.kie.server.services.taskassigning.planning.RunnableBase

status

Constructor Summary

Constructors

Constructor and Description
SolutionSynchronizer(SolverExecutor solverExecutor, TaskAssigningRuntimeDelegate delegate, org.kie.server.services.taskassigning.user.system.api.UserSystemService userSystem, Duration syncInterval, Duration usersSyncInterval, SolverHandlerContext context, Consumer<SolutionSynchronizer.Result> resultConsumer)

Method Summary

Modifier and Type	Method and Description
protected void	applyResult(SolutionSynchronizer.Result result)
protected List<org.optaplanner.core.impl.solver.ProblemFactChange<TaskAssigningSolution>>	buildChanges(TaskAssigningSolution solution, List<org.kie.server.api.model.taskassigning.TaskData> updatedTaskDataList)
protected List<org.optaplanner.core.impl.solver.ProblemFactChange<TaskAssigningSolution>>	buildChanges(TaskAssigningSolution solution, List<org.kie.server.api.model.taskassigning.TaskData> updatedTaskDataList, List<org.kie.server.services.taskassigning.user.system.api.User> updatedUserList)
protected List<org.optaplanner.core.impl.solver.ProblemFactChange<TaskAssigningSolution>>	buildChanges(TaskAssigningSolution solution, org.apache.commons.lang3.tuple.Pair<List<org.kie.server.api.model.taskassigning.TaskData>,LocalDateTime> tasksUpdateResult, org.apache.commons.lang3.tuple.Pair<Boolean,List<org.kie.server.services.taskassigning.user.system.api.User>> usersUpdateResult)
protected TaskAssigningSolution	buildSolution(List<org.kie.server.api.model.taskassigning.TaskData> taskDataList, List<org.kie.server.services.taskassigning.user.system.api.User> externalUsers)
protected long	calculateNextUnchangedPeriodTime(Duration unchangedPeriodTimeoutShift)
protected long	calculateNextUsersSyncTime()
void	destroy() Starts the synchronizing finalization, that will be produced as soon as possible.
protected long	getSystemTime()
void	initSolverExecutor()
protected boolean	isUnchangedPeriodTime()
protected boolean	isUsersSyncTime()
void	run()
void	synchronizeSolution(TaskAssigningSolution solution, LocalDateTime fromLastModificationDate) Starts the synchronization of the solution from the indicated last modification date.
void	synchronizeSolution(TaskAssigningSolution solution, LocalDateTime fromLastModificationDate, Duration unchangedPeriodTimeout) Starts the synchronization of the solution from the indicated last modification date.

Methods inherited from class org.kie.server.services.taskassigning.planning.RunnableBase

isAlive, isDestroyed

Methods inherited from class java.lang.Object

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

Constructor Detail

SolutionSynchronizer

public SolutionSynchronizer(SolverExecutor solverExecutor,
                            TaskAssigningRuntimeDelegate delegate,
                            org.kie.server.services.taskassigning.user.system.api.UserSystemService userSystem,
                            Duration syncInterval,
                            Duration usersSyncInterval,
                            SolverHandlerContext context,
                            Consumer<SolutionSynchronizer.Result> resultConsumer)

Method Detail

initSolverExecutor

public void initSolverExecutor()

synchronizeSolution

public void synchronizeSolution(TaskAssigningSolution solution,
                                LocalDateTime fromLastModificationDate)

Starts the synchronization of the solution from the indicated last modification date.

Parameters:

solution - a non null solution instance to synchronize.

fromLastModificationDate - filtering parameter for reading the modifications.

synchronizeSolution

public void synchronizeSolution(TaskAssigningSolution solution,
                                LocalDateTime fromLastModificationDate,
                                Duration unchangedPeriodTimeout)

Starts the synchronization of the solution from the indicated last modification date.

Parameters:

solution - a non null solution instance to synchronize.

fromLastModificationDate - filtering parameter for reading the modifications.

unchangedPeriodTimeout - a non null period of time for returning from the synchronization if no changes were produced during that period. A negative or zero period is ignored.

destroy

public void destroy()

Starts the synchronizing finalization, that will be produced as soon as possible. It's a non thread-safe method, but only first invocation has effect.

Overrides:

destroy in class RunnableBase

run

public void run()

applyResult

protected void applyResult(SolutionSynchronizer.Result result)

isUsersSyncTime

protected boolean isUsersSyncTime()

calculateNextUsersSyncTime

protected long calculateNextUsersSyncTime()

isUnchangedPeriodTime

protected boolean isUnchangedPeriodTime()

calculateNextUnchangedPeriodTime

protected long calculateNextUnchangedPeriodTime(Duration unchangedPeriodTimeoutShift)

getSystemTime

protected long getSystemTime()

buildChanges

protected List<org.optaplanner.core.impl.solver.ProblemFactChange<TaskAssigningSolution>> buildChanges(TaskAssigningSolution solution,
                                                                                                       org.apache.commons.lang3.tuple.Pair<List<org.kie.server.api.model.taskassigning.TaskData>,LocalDateTime> tasksUpdateResult,
                                                                                                       org.apache.commons.lang3.tuple.Pair<Boolean,List<org.kie.server.services.taskassigning.user.system.api.User>> usersUpdateResult)

buildChanges

protected List<org.optaplanner.core.impl.solver.ProblemFactChange<TaskAssigningSolution>> buildChanges(TaskAssigningSolution solution,
                                                                                                       List<org.kie.server.api.model.taskassigning.TaskData> updatedTaskDataList)

buildChanges

protected List<org.optaplanner.core.impl.solver.ProblemFactChange<TaskAssigningSolution>> buildChanges(TaskAssigningSolution solution,
                                                                                                       List<org.kie.server.api.model.taskassigning.TaskData> updatedTaskDataList,
                                                                                                       List<org.kie.server.services.taskassigning.user.system.api.User> updatedUserList)

buildSolution

protected TaskAssigningSolution buildSolution(List<org.kie.server.api.model.taskassigning.TaskData> taskDataList,
                                              List<org.kie.server.services.taskassigning.user.system.api.User> externalUsers)