Package org.optaplanner.core.impl.heuristic.selector.move

Examples of org.optaplanner.core.impl.heuristic.selector.move.MoveSelector

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public class MoveSelectorConfigTest extends AbstractSelectorConfigTest {

    @Test
    public void phaseOriginal() {
        final MoveSelector baseMoveSelector = SelectorTestUtils.mockMoveSelector(DummyMove.class);
        MoveSelectorConfig moveSelectorConfig = new MoveSelectorConfig() {
            @Override
            protected MoveSelector buildBaseMoveSelector(
                    HeuristicConfigPolicy configPolicy,
                    SelectionCacheType minimumCacheType, boolean randomSelection) {
                assertEquals(SelectionCacheType.PHASE, minimumCacheType);
                assertEquals(false, randomSelection);
                return baseMoveSelector;
            }
        };
        moveSelectorConfig.setCacheType(SelectionCacheType.PHASE);
        moveSelectorConfig.setSelectionOrder(SelectionOrder.ORIGINAL);
        MoveSelector moveSelector = moveSelectorConfig.buildMoveSelector(
                buildHeuristicConfigPolicy(),
                SelectionCacheType.JUST_IN_TIME, SelectionOrder.RANDOM);
        assertInstanceOf(CachingMoveSelector.class, moveSelector);
        assertNotInstanceOf(ShufflingMoveSelector.class, moveSelector);
        assertEquals(SelectionCacheType.PHASE, moveSelector.getCacheType());
        assertSame(baseMoveSelector, ((CachingMoveSelector) moveSelector).getChildMoveSelector());
    }
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        assertSame(baseMoveSelector, ((CachingMoveSelector) moveSelector).getChildMoveSelector());
    }

    @Test
    public void stepOriginal() {
        final MoveSelector baseMoveSelector = SelectorTestUtils.mockMoveSelector(DummyMove.class);
        MoveSelectorConfig moveSelectorConfig = new MoveSelectorConfig() {
            @Override
            protected MoveSelector buildBaseMoveSelector(
                    HeuristicConfigPolicy configPolicy,
                    SelectionCacheType minimumCacheType, boolean randomSelection) {
                assertEquals(SelectionCacheType.STEP, minimumCacheType);
                assertEquals(false, randomSelection);
                return baseMoveSelector;
            }
        };
        moveSelectorConfig.setCacheType(SelectionCacheType.STEP);
        moveSelectorConfig.setSelectionOrder(SelectionOrder.ORIGINAL);
        MoveSelector moveSelector = moveSelectorConfig.buildMoveSelector(
                buildHeuristicConfigPolicy(),
                SelectionCacheType.JUST_IN_TIME, SelectionOrder.RANDOM);
        assertInstanceOf(CachingMoveSelector.class, moveSelector);
        assertNotInstanceOf(ShufflingMoveSelector.class, moveSelector);
        assertEquals(SelectionCacheType.STEP, moveSelector.getCacheType());
        assertSame(baseMoveSelector, ((CachingMoveSelector) moveSelector).getChildMoveSelector());
    }
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        assertSame(baseMoveSelector, ((CachingMoveSelector) moveSelector).getChildMoveSelector());
    }

    @Test
    public void justInTimeOriginal() {
        final MoveSelector baseMoveSelector = SelectorTestUtils.mockMoveSelector(DummyMove.class);
        MoveSelectorConfig moveSelectorConfig = new MoveSelectorConfig() {
            @Override
            protected MoveSelector buildBaseMoveSelector(
                    HeuristicConfigPolicy configPolicy,
                    SelectionCacheType minimumCacheType, boolean randomSelection) {
                assertEquals(SelectionCacheType.JUST_IN_TIME, minimumCacheType);
                assertEquals(false, randomSelection);
                return baseMoveSelector;
            }
        };
        moveSelectorConfig.setCacheType(SelectionCacheType.JUST_IN_TIME);
        moveSelectorConfig.setSelectionOrder(SelectionOrder.ORIGINAL);
        MoveSelector moveSelector = moveSelectorConfig.buildMoveSelector(
                buildHeuristicConfigPolicy(),
                SelectionCacheType.JUST_IN_TIME, SelectionOrder.RANDOM);
        assertSame(baseMoveSelector, moveSelector);
        assertEquals(SelectionCacheType.JUST_IN_TIME, moveSelector.getCacheType());
    }
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        assertEquals(SelectionCacheType.JUST_IN_TIME, moveSelector.getCacheType());
    }

    @Test
    public void phaseRandom() {
        final MoveSelector baseMoveSelector = SelectorTestUtils.mockMoveSelector(DummyMove.class);
        MoveSelectorConfig moveSelectorConfig = new MoveSelectorConfig() {
            @Override
            protected MoveSelector buildBaseMoveSelector(
                    HeuristicConfigPolicy configPolicy,
                    SelectionCacheType minimumCacheType, boolean randomSelection) {
                assertEquals(SelectionCacheType.PHASE, minimumCacheType);
                assertEquals(false, randomSelection);
                return baseMoveSelector;
            }
        };
        moveSelectorConfig.setCacheType(SelectionCacheType.PHASE);
        moveSelectorConfig.setSelectionOrder(SelectionOrder.RANDOM);
        MoveSelector moveSelector = moveSelectorConfig.buildMoveSelector(
                buildHeuristicConfigPolicy(),
                SelectionCacheType.JUST_IN_TIME, SelectionOrder.RANDOM);
        assertInstanceOf(CachingMoveSelector.class, moveSelector);
        assertNotInstanceOf(ShufflingMoveSelector.class, moveSelector);
        assertEquals(SelectionCacheType.PHASE, moveSelector.getCacheType());
        assertSame(baseMoveSelector, ((CachingMoveSelector) moveSelector).getChildMoveSelector());
    }
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        assertSame(baseMoveSelector, ((CachingMoveSelector) moveSelector).getChildMoveSelector());
    }

    @Test
    public void stepRandom() {
        final MoveSelector baseMoveSelector = SelectorTestUtils.mockMoveSelector(DummyMove.class);
        MoveSelectorConfig moveSelectorConfig = new MoveSelectorConfig() {
            @Override
            protected MoveSelector buildBaseMoveSelector(
                    HeuristicConfigPolicy configPolicy,
                    SelectionCacheType minimumCacheType, boolean randomSelection) {
                assertEquals(SelectionCacheType.STEP, minimumCacheType);
                assertEquals(false, randomSelection);
                return baseMoveSelector;
            }
        };
        moveSelectorConfig.setCacheType(SelectionCacheType.STEP);
        moveSelectorConfig.setSelectionOrder(SelectionOrder.RANDOM);
        MoveSelector moveSelector = moveSelectorConfig.buildMoveSelector(
                buildHeuristicConfigPolicy(),
                SelectionCacheType.JUST_IN_TIME, SelectionOrder.RANDOM);
        assertInstanceOf(CachingMoveSelector.class, moveSelector);
        assertNotInstanceOf(ShufflingMoveSelector.class, moveSelector);
        assertEquals(SelectionCacheType.STEP, moveSelector.getCacheType());
        assertSame(baseMoveSelector, ((CachingMoveSelector) moveSelector).getChildMoveSelector());
    }
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        assertSame(baseMoveSelector, ((CachingMoveSelector) moveSelector).getChildMoveSelector());
    }

    @Test
    public void justInTimeRandom() {
        final MoveSelector baseMoveSelector = SelectorTestUtils.mockMoveSelector(DummyMove.class);
        MoveSelectorConfig moveSelectorConfig = new MoveSelectorConfig() {
            @Override
            protected MoveSelector buildBaseMoveSelector(
                    HeuristicConfigPolicy configPolicy,
                    SelectionCacheType minimumCacheType, boolean randomSelection) {
                assertEquals(SelectionCacheType.JUST_IN_TIME, minimumCacheType);
                assertEquals(true, randomSelection);
                return baseMoveSelector;
            }
        };
        moveSelectorConfig.setCacheType(SelectionCacheType.JUST_IN_TIME);
        moveSelectorConfig.setSelectionOrder(SelectionOrder.RANDOM);
        MoveSelector moveSelector = moveSelectorConfig.buildMoveSelector(
                buildHeuristicConfigPolicy(),
                SelectionCacheType.JUST_IN_TIME, SelectionOrder.RANDOM);
        assertSame(baseMoveSelector, moveSelector);
        assertEquals(SelectionCacheType.JUST_IN_TIME, moveSelector.getCacheType());
    }
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        assertEquals(SelectionCacheType.JUST_IN_TIME, moveSelector.getCacheType());
    }

    @Test
    public void phaseShuffled() {
        final MoveSelector baseMoveSelector = SelectorTestUtils.mockMoveSelector(DummyMove.class);
        MoveSelectorConfig moveSelectorConfig = new MoveSelectorConfig() {
            @Override
            protected MoveSelector buildBaseMoveSelector(
                    HeuristicConfigPolicy configPolicy,
                    SelectionCacheType minimumCacheType, boolean randomSelection) {
                assertEquals(SelectionCacheType.PHASE, minimumCacheType);
                assertEquals(false, randomSelection);
                return baseMoveSelector;
            }
        };
        moveSelectorConfig.setCacheType(SelectionCacheType.PHASE);
        moveSelectorConfig.setSelectionOrder(SelectionOrder.SHUFFLED);
        MoveSelector moveSelector = moveSelectorConfig.buildMoveSelector(
                buildHeuristicConfigPolicy(),
                SelectionCacheType.JUST_IN_TIME, SelectionOrder.RANDOM);
        assertInstanceOf(ShufflingMoveSelector.class, moveSelector);
        assertEquals(SelectionCacheType.PHASE, moveSelector.getCacheType());
        assertSame(baseMoveSelector, ((ShufflingMoveSelector) moveSelector).getChildMoveSelector());
    }
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        assertSame(baseMoveSelector, ((ShufflingMoveSelector) moveSelector).getChildMoveSelector());
    }

    @Test
    public void stepShuffled() {
        final MoveSelector baseMoveSelector = SelectorTestUtils.mockMoveSelector(DummyMove.class);
        MoveSelectorConfig moveSelectorConfig = new MoveSelectorConfig() {
            @Override
            protected MoveSelector buildBaseMoveSelector(
                    HeuristicConfigPolicy configPolicy,
                    SelectionCacheType minimumCacheType, boolean randomSelection) {
                assertEquals(SelectionCacheType.STEP, minimumCacheType);
                assertEquals(false, randomSelection);
                return baseMoveSelector;
            }
        };
        moveSelectorConfig.setCacheType(SelectionCacheType.STEP);
        moveSelectorConfig.setSelectionOrder(SelectionOrder.SHUFFLED);
        MoveSelector moveSelector = moveSelectorConfig.buildMoveSelector(
                buildHeuristicConfigPolicy(),
                SelectionCacheType.JUST_IN_TIME, SelectionOrder.RANDOM);
        assertInstanceOf(ShufflingMoveSelector.class, moveSelector);
        assertEquals(SelectionCacheType.STEP, moveSelector.getCacheType());
        assertSame(baseMoveSelector, ((ShufflingMoveSelector) moveSelector).getChildMoveSelector());
    }
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        assertSame(baseMoveSelector, ((ShufflingMoveSelector) moveSelector).getChildMoveSelector());
    }

    @Test(expected = IllegalArgumentException.class)
    public void justInTimeShuffled() {
        final MoveSelector baseMoveSelector = SelectorTestUtils.mockMoveSelector(DummyMove.class);
        MoveSelectorConfig moveSelectorConfig = new MoveSelectorConfig() {
            @Override
            protected MoveSelector buildBaseMoveSelector(
                    HeuristicConfigPolicy configPolicy,
                    SelectionCacheType minimumCacheType, boolean randomSelection) {
                return baseMoveSelector;
            }
        };
        moveSelectorConfig.setCacheType(SelectionCacheType.JUST_IN_TIME);
        moveSelectorConfig.setSelectionOrder(SelectionOrder.SHUFFLED);
        MoveSelector moveSelector = moveSelectorConfig.buildMoveSelector(
                buildHeuristicConfigPolicy(),
                SelectionCacheType.JUST_IN_TIME, SelectionOrder.RANDOM);
    }
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        } else if (randomSelection) {
            Map<MoveSelector, Double> fixedProbabilityWeightMap = new HashMap<MoveSelector, Double>(
                    moveSelectorConfigList.size());
            for (int i = 0; i < moveSelectorConfigList.size(); i++) {
                MoveSelectorConfig moveSelectorConfig = moveSelectorConfigList.get(i);
                MoveSelector moveSelector = moveSelectorList.get(i);
                Double fixedProbabilityWeight = moveSelectorConfig.getFixedProbabilityWeight();
                if (fixedProbabilityWeight == null) {
                    // Default to equal probability for each move type => unequal probability for each move instance
                    fixedProbabilityWeight = 1.0;
                }
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