Package org.drools.planner.core.heuristic.selector.move

Examples of org.drools.planner.core.heuristic.selector.move.MoveSelector

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    }

    @Test
    public void justInTimeOriginal() {
        SolutionDescriptor solutionDescriptor = SelectorTestUtils.mockSolutionDescriptor();
        final MoveSelector baseMoveSelector = SelectorTestUtils.mockMoveSelector(DummyMove.class);
        MoveSelectorConfig moveSelectorConfig = new MoveSelectorConfig() {
            @Override
            protected MoveSelector buildBaseMoveSelector(
                    EnvironmentMode environmentMode, SolutionDescriptor solutionDescriptor,
                    SelectionCacheType minimumCacheType, SelectionOrder resolvedSelectionOrder) {
                assertEquals(SelectionCacheType.JUST_IN_TIME, minimumCacheType);
                assertEquals(SelectionOrder.ORIGINAL, resolvedSelectionOrder);
                return baseMoveSelector;
            }
        };
        moveSelectorConfig.setCacheType(SelectionCacheType.JUST_IN_TIME);
        moveSelectorConfig.setSelectionOrder(SelectionOrder.ORIGINAL);
        MoveSelector moveSelector = moveSelectorConfig.buildMoveSelector(
                EnvironmentMode.REPRODUCIBLE, solutionDescriptor,
                SelectionCacheType.JUST_IN_TIME, SelectionOrder.RANDOM);
        assertSame(baseMoveSelector, moveSelector);
    }
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    }

    @Test
    public void phaseRandom() {
        SolutionDescriptor solutionDescriptor = SelectorTestUtils.mockSolutionDescriptor();
        final MoveSelector baseMoveSelector = SelectorTestUtils.mockMoveSelector(DummyMove.class);
        MoveSelectorConfig moveSelectorConfig = new MoveSelectorConfig() {
            @Override
            protected MoveSelector buildBaseMoveSelector(
                    EnvironmentMode environmentMode, SolutionDescriptor solutionDescriptor,
                    SelectionCacheType minimumCacheType, SelectionOrder resolvedSelectionOrder) {
                assertEquals(SelectionCacheType.PHASE, minimumCacheType);
                assertEquals(SelectionOrder.ORIGINAL, resolvedSelectionOrder);
                return baseMoveSelector;
            }
        };
        moveSelectorConfig.setCacheType(SelectionCacheType.PHASE);
        moveSelectorConfig.setSelectionOrder(SelectionOrder.RANDOM);
        MoveSelector moveSelector = moveSelectorConfig.buildMoveSelector(
                EnvironmentMode.REPRODUCIBLE, solutionDescriptor,
                SelectionCacheType.JUST_IN_TIME, SelectionOrder.RANDOM);
        assertInstanceOf(CachingMoveSelector.class, moveSelector);
        assertNotInstanceOf(ShufflingMoveSelector.class, moveSelector);
        assertSame(baseMoveSelector, ((CachingMoveSelector) moveSelector).getChildMoveSelector());
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    }

    @Test
    public void stepRandom() {
        SolutionDescriptor solutionDescriptor = SelectorTestUtils.mockSolutionDescriptor();
        final MoveSelector baseMoveSelector = SelectorTestUtils.mockMoveSelector(DummyMove.class);
        MoveSelectorConfig moveSelectorConfig = new MoveSelectorConfig() {
            @Override
            protected MoveSelector buildBaseMoveSelector(
                    EnvironmentMode environmentMode, SolutionDescriptor solutionDescriptor,
                    SelectionCacheType minimumCacheType, SelectionOrder resolvedSelectionOrder) {
                assertEquals(SelectionCacheType.STEP, minimumCacheType);
                assertEquals(SelectionOrder.ORIGINAL, resolvedSelectionOrder);
                return baseMoveSelector;
            }
        };
        moveSelectorConfig.setCacheType(SelectionCacheType.STEP);
        moveSelectorConfig.setSelectionOrder(SelectionOrder.RANDOM);
        MoveSelector moveSelector = moveSelectorConfig.buildMoveSelector(
                EnvironmentMode.REPRODUCIBLE, solutionDescriptor,
                SelectionCacheType.JUST_IN_TIME, SelectionOrder.RANDOM);
        assertInstanceOf(CachingMoveSelector.class, moveSelector);
        assertNotInstanceOf(ShufflingMoveSelector.class, moveSelector);
        assertSame(baseMoveSelector, ((CachingMoveSelector) moveSelector).getChildMoveSelector());
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    }

    @Test
    public void justInTimeRandom() {
        SolutionDescriptor solutionDescriptor = SelectorTestUtils.mockSolutionDescriptor();
        final MoveSelector baseMoveSelector = SelectorTestUtils.mockMoveSelector(DummyMove.class);
        MoveSelectorConfig moveSelectorConfig = new MoveSelectorConfig() {
            @Override
            protected MoveSelector buildBaseMoveSelector(
                    EnvironmentMode environmentMode, SolutionDescriptor solutionDescriptor,
                    SelectionCacheType minimumCacheType, SelectionOrder resolvedSelectionOrder) {
                assertEquals(SelectionCacheType.JUST_IN_TIME, minimumCacheType);
                assertEquals(SelectionOrder.RANDOM, resolvedSelectionOrder);
                return baseMoveSelector;
            }
        };
        moveSelectorConfig.setCacheType(SelectionCacheType.JUST_IN_TIME);
        moveSelectorConfig.setSelectionOrder(SelectionOrder.RANDOM);
        MoveSelector moveSelector = moveSelectorConfig.buildMoveSelector(
                EnvironmentMode.REPRODUCIBLE, solutionDescriptor,
                SelectionCacheType.JUST_IN_TIME, SelectionOrder.RANDOM);
        assertSame(baseMoveSelector, moveSelector);
    }
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    }

    @Test
    public void phaseShuffled() {
        SolutionDescriptor solutionDescriptor = SelectorTestUtils.mockSolutionDescriptor();
        final MoveSelector baseMoveSelector = SelectorTestUtils.mockMoveSelector(DummyMove.class);
        MoveSelectorConfig moveSelectorConfig = new MoveSelectorConfig() {
            @Override
            protected MoveSelector buildBaseMoveSelector(
                    EnvironmentMode environmentMode, SolutionDescriptor solutionDescriptor,
                    SelectionCacheType minimumCacheType, SelectionOrder resolvedSelectionOrder) {
                assertEquals(SelectionCacheType.PHASE, minimumCacheType);
                assertEquals(SelectionOrder.ORIGINAL, resolvedSelectionOrder);
                return baseMoveSelector;
            }
        };
        moveSelectorConfig.setCacheType(SelectionCacheType.PHASE);
        moveSelectorConfig.setSelectionOrder(SelectionOrder.SHUFFLED);
        MoveSelector moveSelector = moveSelectorConfig.buildMoveSelector(
                EnvironmentMode.REPRODUCIBLE, solutionDescriptor,
                SelectionCacheType.JUST_IN_TIME, SelectionOrder.RANDOM);
        assertInstanceOf(ShufflingMoveSelector.class, moveSelector);
        assertSame(baseMoveSelector, ((ShufflingMoveSelector) moveSelector).getChildMoveSelector());
    }
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    }

    @Test
    public void stepShuffled() {
        SolutionDescriptor solutionDescriptor = SelectorTestUtils.mockSolutionDescriptor();
        final MoveSelector baseMoveSelector = SelectorTestUtils.mockMoveSelector(DummyMove.class);
        MoveSelectorConfig moveSelectorConfig = new MoveSelectorConfig() {
            @Override
            protected MoveSelector buildBaseMoveSelector(
                    EnvironmentMode environmentMode, SolutionDescriptor solutionDescriptor,
                    SelectionCacheType minimumCacheType, SelectionOrder resolvedSelectionOrder) {
                assertEquals(SelectionCacheType.STEP, minimumCacheType);
                assertEquals(SelectionOrder.ORIGINAL, resolvedSelectionOrder);
                return baseMoveSelector;
            }
        };
        moveSelectorConfig.setCacheType(SelectionCacheType.STEP);
        moveSelectorConfig.setSelectionOrder(SelectionOrder.SHUFFLED);
        MoveSelector moveSelector = moveSelectorConfig.buildMoveSelector(
                EnvironmentMode.REPRODUCIBLE, solutionDescriptor,
                SelectionCacheType.JUST_IN_TIME, SelectionOrder.RANDOM);
        assertInstanceOf(ShufflingMoveSelector.class, moveSelector);
        assertSame(baseMoveSelector, ((ShufflingMoveSelector) moveSelector).getChildMoveSelector());
    }
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    }

    @Test(expected = IllegalArgumentException.class)
    public void justInTimeShuffled() {
        SolutionDescriptor solutionDescriptor = SelectorTestUtils.mockSolutionDescriptor();
        final MoveSelector baseMoveSelector = SelectorTestUtils.mockMoveSelector(DummyMove.class);
        MoveSelectorConfig moveSelectorConfig = new MoveSelectorConfig() {
            @Override
            protected MoveSelector buildBaseMoveSelector(
                    EnvironmentMode environmentMode, SolutionDescriptor solutionDescriptor,
                    SelectionCacheType minimumCacheType, SelectionOrder resolvedSelectionOrder) {
                return baseMoveSelector;
            }
        };
        moveSelectorConfig.setCacheType(SelectionCacheType.JUST_IN_TIME);
        moveSelectorConfig.setSelectionOrder(SelectionOrder.SHUFFLED);
        MoveSelector moveSelector = moveSelectorConfig.buildMoveSelector(
                EnvironmentMode.REPRODUCIBLE, solutionDescriptor,
                SelectionCacheType.JUST_IN_TIME, SelectionOrder.RANDOM);
    }
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    public void originalSelectionCacheTypeStep() {
        runOriginalSelection(SelectionCacheType.STEP, 5);
    }

    public void runOriginalSelection(SelectionCacheType cacheType, int timesCalled) {
        MoveSelector childMoveSelector = SelectorTestUtils.mockMoveSelector(DummyMove.class,
                new DummyMove("a1"), new DummyMove("a2"), new DummyMove("a3"));

        CachingMoveSelector moveSelector = new CachingMoveSelector(childMoveSelector, cacheType, false);
        verify(childMoveSelector, times(1)).isNeverEnding();
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    public void randomSelectionCacheTypeStep() {
        runRandomSelection(SelectionCacheType.STEP, 3);
    }

    public void runRandomSelection(SelectionCacheType cacheType, int timesCalled) {
        MoveSelector childMoveSelector = SelectorTestUtils.mockMoveSelector(DummyMove.class,
                new DummyMove("a1"), new DummyMove("a2"), new DummyMove("a3"));

        CachingMoveSelector moveSelector = new CachingMoveSelector(childMoveSelector, cacheType, true);
        verify(childMoveSelector, times(1)).isNeverEnding();
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public class ProbabilityMoveSelectorTest {

    @Test
    public void randomSelection() {
        MoveSelector childMoveSelector = SelectorTestUtils.mockMoveSelector(DummyMove.class,
                new DummyMove("e1"), new DummyMove("e2"), new DummyMove("e3"), new DummyMove("e4"));

        SelectionProbabilityWeightFactory<DummyMove> probabilityWeightFactory = new SelectionProbabilityWeightFactory<DummyMove>() {
            public double createProbabilityWeight(ScoreDirector scoreDirector, DummyMove move) {
                if (move.getCode().equals("e1")) {
                    return 1000.0;
                } else if (move.getCode().equals("e2")) {
                    return 200.0;
                } else if (move.getCode().equals("e3")) {
                    return 30.0;
                } else if (move.getCode().equals("e4")) {
                    return 4.0;
                } else {
                    throw new IllegalStateException("Unknown move (" + move + ").");
                }
            }
        };
        MoveSelector moveSelector = new ProbabilityMoveSelector(childMoveSelector, SelectionCacheType.STEP,
                probabilityWeightFactory);

        Random workingRandom = mock(Random.class);
        when(workingRandom.nextDouble()).thenReturn(1222.0 / 1234.0, 111.0 / 1234.0, 0.0, 1230.0 / 1234.0, 1199.0 / 1234.0);

        DefaultSolverScope solverScope = mock(DefaultSolverScope.class);
        when(solverScope.getWorkingRandom()).thenReturn(workingRandom);
        moveSelector.solvingStarted(solverScope);
        AbstractSolverPhaseScope phaseScopeA = mock(AbstractSolverPhaseScope.class);
        when(phaseScopeA.getSolverScope()).thenReturn(solverScope);
        when(phaseScopeA.getWorkingRandom()).thenReturn(workingRandom);
        moveSelector.phaseStarted(phaseScopeA);
        AbstractStepScope stepScopeA1 = mock(AbstractStepScope.class);
        when(stepScopeA1.getPhaseScope()).thenReturn(phaseScopeA);
        when(stepScopeA1.getWorkingRandom()).thenReturn(workingRandom);
        moveSelector.stepStarted(stepScopeA1);

        assertCodesOfNeverEndingMoveSelector(moveSelector, 4L, "e3", "e1", "e1", "e4", "e2");

        moveSelector.stepEnded(stepScopeA1);
        moveSelector.phaseEnded(phaseScopeA);
        moveSelector.solvingEnded(solverScope);

        verifySolverPhaseLifecycle(childMoveSelector, 1, 1, 1);
        verify(childMoveSelector, times(1)).iterator();
    }
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Related Classes of org.drools.planner.core.heuristic.selector.move.MoveSelector

  • org.drools.planner.config.heuristic.selector.move.composite.UnionMoveSelectorConfig
  • org.drools.planner.config.heuristic.selector.move.MoveSelectorConfig
  • org.drools.planner.config.heuristic.selector.move.MoveSelectorConfigTest
  • org.drools.planner.config.localsearch.LocalSearchSolverPhaseConfig
  • org.drools.planner.core.heuristic.selector.move.composite.CartesianProductMoveSelector$RandomCartesianProductMoveIterator
  • org.drools.planner.core.heuristic.selector.move.decorator.CachingMoveSelectorTest
  • org.drools.planner.core.heuristic.selector.move.decorator.FilteringMoveSelectorTest
  • org.drools.planner.core.heuristic.selector.move.decorator.ProbabilityMoveSelectorTest
  • org.drools.planner.core.heuristic.selector.move.decorator.ShufflingMoveSelectorTest
  • org.drools.planner.core.heuristic.selector.SelectorTestUtils
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