Examples of ExhaustiveSearchNode

Examples of org.optaplanner.core.impl.exhaustivesearch.node.ExhaustiveSearchNode

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import static org.mockito.Mockito.*;

public abstract class AbstractNodeComparatorTest {

    protected ExhaustiveSearchNode buildNode(int depth, int scoreString, long parentBreadth, long breadth) {
        ExhaustiveSearchNode node = mock(ExhaustiveSearchNode.class);
        when(node.getDepth()).thenReturn(depth);
        when(node.getScore()).thenReturn(SimpleScore.valueOf(scoreString));
        when(node.getOptimisticBound()).thenReturn(SimpleScore.valueOf(scoreString));
        when(node.getParentBreadth()).thenReturn(parentBreadth);
        when(node.getBreadth()).thenReturn(breadth);
        return node;
    }
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Examples of org.optaplanner.core.impl.exhaustivesearch.node.ExhaustiveSearchNode

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        return node;
    }

    protected ExhaustiveSearchNode buildNode(int depth, int scoreString, int optimisticBoundString,
            long parentBreadth, long breadth) {
        ExhaustiveSearchNode node = mock(ExhaustiveSearchNode.class);
        when(node.getDepth()).thenReturn(depth);
        when(node.getScore()).thenReturn(SimpleScore.valueOf(scoreString));
        when(node.getOptimisticBound()).thenReturn(SimpleScore.valueOf(optimisticBoundString));
        when(node.getParentBreadth()).thenReturn(parentBreadth);
        when(node.getBreadth()).thenReturn(breadth);
        return node;
    }
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Examples of org.optaplanner.core.impl.exhaustivesearch.node.ExhaustiveSearchNode

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        phaseScope.setExpandableNodeQueue(expandableNodeQueue);
        phaseStarted(phaseScope);

        while (!expandableNodeQueue.isEmpty() && !termination.isPhaseTerminated(phaseScope)) {
            ExhaustiveSearchStepScope stepScope = new ExhaustiveSearchStepScope(phaseScope);
            ExhaustiveSearchNode node = expandableNodeQueue.last();
            expandableNodeQueue.remove(node);
            stepScope.setExpandingNode(node);
            stepStarted(stepScope);
            restoreWorkingSolution(stepScope);
            decider.expandNode(stepScope);
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Examples of org.optaplanner.core.impl.exhaustivesearch.node.ExhaustiveSearchNode

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        phaseScope.setLayerList(layerList);
    }

    private void initStartNode(ExhaustiveSearchPhaseScope phaseScope) {
        ExhaustiveSearchLayer startLayer = phaseScope.getLayerList().get(0);
        ExhaustiveSearchNode startNode = new ExhaustiveSearchNode(startLayer, null);

        if (decider.isScoreBounderEnabled()) {
            ScoreDirector scoreDirector = phaseScope.getScoreDirector();
            Score score = scoreDirector.calculateScore();
            startNode.setScore(score);
            ScoreBounder scoreBounder = decider.getScoreBounder();
            phaseScope.setBestPessimisticBound(startLayer.isLastLayer() ? score
                    : scoreBounder.calculatePessimisticBound(scoreDirector, score));
            startNode.setOptimisticBound(startLayer.isLastLayer() ? score
                    : scoreBounder.calculateOptimisticBound(scoreDirector, score));
        }
        if (!startLayer.isLastLayer()) {
            phaseScope.addExpandableNode(startNode);
        }
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Examples of org.optaplanner.core.impl.exhaustivesearch.node.ExhaustiveSearchNode

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        decider.stepStarted(stepScope);
    }

    protected void restoreWorkingSolution(ExhaustiveSearchStepScope stepScope) {
        ExhaustiveSearchPhaseScope phaseScope = stepScope.getPhaseScope();
        ExhaustiveSearchNode oldNode = phaseScope.getLastCompletedStepScope().getExpandingNode();
        ExhaustiveSearchNode newNode = stepScope.getExpandingNode();
        List<Move> oldMoveList = new ArrayList<Move>(oldNode.getDepth());
        List<Move> newMoveList = new ArrayList<Move>(newNode.getDepth());
        while (oldNode != newNode) {
            int oldDepth = oldNode.getDepth();
            int newDepth = newNode.getDepth();
            if (oldDepth < newDepth) {
                newMoveList.add(newNode.getMove());
                newNode = newNode.getParent();
            } else {
                oldMoveList.add(oldNode.getUndoMove());
                oldNode = oldNode.getParent();
            }
        }
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Examples of org.optaplanner.core.impl.exhaustivesearch.node.ExhaustiveSearchNode

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        ExhaustiveSearchLayer layer0 = new ExhaustiveSearchLayer(0, mock(Object.class), 100);
        ExhaustiveSearchLayer layer1 = new ExhaustiveSearchLayer(1, mock(Object.class), 99);
        ExhaustiveSearchLayer layer2 = new ExhaustiveSearchLayer(2, mock(Object.class), 98);
        ExhaustiveSearchLayer layer3 = new ExhaustiveSearchLayer(3, mock(Object.class), 97);
        ExhaustiveSearchLayer layer4 = new ExhaustiveSearchLayer(4, mock(Object.class), 96);
        ExhaustiveSearchNode node0 = new ExhaustiveSearchNode(layer0, null);
        node0.setMove(mock(Move.class));
        node0.setUndoMove(mock(Move.class));
        ExhaustiveSearchNode node1 = new ExhaustiveSearchNode(layer1, node0);
        node1.setMove(mock(Move.class));
        node1.setUndoMove(mock(Move.class));
        ExhaustiveSearchNode node2A = new ExhaustiveSearchNode(layer2, node1);
        node2A.setMove(mock(Move.class));
        node2A.setUndoMove(mock(Move.class));
        ExhaustiveSearchNode node3A = new ExhaustiveSearchNode(layer3, node2A); // oldNode
        node3A.setMove(mock(Move.class));
        node3A.setUndoMove(mock(Move.class));
        ExhaustiveSearchNode node2B = new ExhaustiveSearchNode(layer2, node1);
        node2B.setMove(mock(Move.class));
        node2B.setUndoMove(mock(Move.class));
        ExhaustiveSearchNode node3B = new ExhaustiveSearchNode(layer3, node2B);
        node3B.setMove(mock(Move.class));
        node3B.setUndoMove(mock(Move.class));
        ExhaustiveSearchNode node4B = new ExhaustiveSearchNode(layer4, node3B); // newNode
        node4B.setMove(mock(Move.class));
        node4B.setUndoMove(mock(Move.class));
        Score newScore = SimpleScore.valueOf(7);
        node4B.setScore(newScore);
        when(lastCompletedStepScope.getExpandingNode()).thenReturn(node3A);
        when(stepScope.getExpandingNode()).thenReturn(node4B);

        DefaultExhaustiveSearchPhase phase = new DefaultExhaustiveSearchPhase();
        phase.setEntitySelector(mock(EntitySelector.class));
        phase.setDecider(mock(ExhaustiveSearchDecider.class));
        phase.restoreWorkingSolution(stepScope);

        verify(node0.getMove(), times(0)).doMove(any(ScoreDirector.class));
        verify(node0.getUndoMove(), times(0)).doMove(any(ScoreDirector.class));
        verify(node1.getMove(), times(0)).doMove(any(ScoreDirector.class));
        verify(node1.getUndoMove(), times(0)).doMove(any(ScoreDirector.class));
        verify(node2A.getMove(), times(0)).doMove(any(ScoreDirector.class));
        verify(node2A.getUndoMove(), times(1)).doMove(any(ScoreDirector.class));
        verify(node3A.getMove(), times(0)).doMove(any(ScoreDirector.class));
        verify(node3A.getUndoMove(), times(1)).doMove(any(ScoreDirector.class));
        verify(node2B.getMove(), times(1)).doMove(any(ScoreDirector.class));
        verify(node2B.getUndoMove(), times(0)).doMove(any(ScoreDirector.class));
        verify(node3B.getMove(), times(1)).doMove(any(ScoreDirector.class));
        verify(node3B.getUndoMove(), times(0)).doMove(any(ScoreDirector.class));
        verify(node4B.getMove(), times(1)).doMove(any(ScoreDirector.class));
        verify(node4B.getUndoMove(), times(0)).doMove(any(ScoreDirector.class));
        // TODO FIXME
        // verify(workingSolution).setScore(newScore);
    }
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Examples of org.optaplanner.core.impl.exhaustivesearch.node.ExhaustiveSearchNode

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    public void solvingEnded(DefaultSolverScope solverScope) {
        moveSelector.solvingEnded(solverScope);
    }

    public void expandNode(ExhaustiveSearchStepScope stepScope) {
        ExhaustiveSearchNode expandingNode = stepScope.getExpandingNode();
        manualEntityMimicRecorder.setRecordedEntity(expandingNode.getEntity());
        stepScope.setBestScoreImproved(false);

        int moveIndex = 0;
        ExhaustiveSearchLayer moveLayer = stepScope.getPhaseScope().getLayerList().get(expandingNode.getDepth() + 1);
        for (Move move : moveSelector) {
            ExhaustiveSearchNode moveNode = new ExhaustiveSearchNode(moveLayer, expandingNode);
            moveIndex++;
            moveNode.setMove(move);
            // Do not filter out pointless moves, because the original value of the entity(s) is irrelevant.
            // If the original value is null and the variable is nullable, the move to null must be done too.
            doMove(stepScope, moveNode);
            if (termination.isPhaseTerminated(stepScope.getPhaseScope())) {
                break;
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Examples of org.optaplanner.core.impl.exhaustivesearch.node.ExhaustiveSearchNode

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        if (pessimisticBound.compareTo(bestPessimisticBound) > 0) {
            bestPessimisticBound = pessimisticBound;
            // TODO optimize this because expandableNodeQueue is too long to iterate
            for (Iterator<ExhaustiveSearchNode> iterator = expandableNodeQueue.iterator(); iterator.hasNext(); ) {
                // Prune it
                ExhaustiveSearchNode node = iterator.next();
                if (node.getOptimisticBound().compareTo(bestPessimisticBound) < 0) {
                    iterator.remove();
                }
            }
        }
    }
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