Package org.drools.planner.core.solver.scope

Examples of org.drools.planner.core.solver.scope.DefaultSolverScope

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    public void stepEnded(AbstractStepScope stepScope) {
        if (!stepScope.isSolutionInitialized()) {
            return;
        }
        AbstractSolverPhaseScope phaseScope = stepScope.getPhaseScope();
        DefaultSolverScope solverScope = phaseScope.getSolverScope();
        Score newScore = stepScope.getScore();
        Score bestScore = solverScope.getBestScore();
        boolean bestScoreImproved;
        if (bestScore == null) {
            bestScoreImproved = true;
            solverScope.setStartingInitializedScore(newScore);
        } else {
            bestScoreImproved = newScore.compareTo(bestScore) > 0;
        }
        stepScope.setBestScoreImproved(bestScoreImproved);
        if (bestScoreImproved) {
            phaseScope.setBestSolutionStepIndex(stepScope.getStepIndex());
            Solution newBestSolution = stepScope.createOrGetClonedSolution();
            updateBestSolution(solverScope, newBestSolution);
        } else if (assertBestScoreIsUnmodified) {
            solverScope.assertScore(solverScope.getBestSolution());
        }
    }
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        ValueSelector valueSelector = SelectorTestUtils.mockValueSelector(variableDescriptor,
                a0, a1, a2, a3, a4, b0, b1, b2);

        DefaultSubChainSelector subChainSelector = new DefaultSubChainSelector(valueSelector, false, 1);

        DefaultSolverScope solverScope = mock(DefaultSolverScope.class);
        when(solverScope.getScoreDirector()).thenReturn(scoreDirector);
        subChainSelector.solvingStarted(solverScope);

        AbstractSolverPhaseScope phaseScopeA = mock(AbstractSolverPhaseScope.class);
        when(phaseScopeA.getSolverScope()).thenReturn(solverScope);
        subChainSelector.phaseStarted(phaseScopeA);
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        ShufflingMoveSelector moveSelector = new ShufflingMoveSelector(childMoveSelector, cacheType);
        verify(childMoveSelector, times(1)).isNeverEnding();

        Random workingRandom = mock(Random.class);

        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);
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        ValueSelector valueSelector = SelectorTestUtils.mockValueSelector(variableDescriptor,
                a0, b0);

        DefaultSubChainSelector subChainSelector = new DefaultSubChainSelector(valueSelector, false, 1);

        DefaultSolverScope solverScope = mock(DefaultSolverScope.class);
        when(solverScope.getScoreDirector()).thenReturn(scoreDirector);
        subChainSelector.solvingStarted(solverScope);

        AbstractSolverPhaseScope phaseScopeA = mock(AbstractSolverPhaseScope.class);
        when(phaseScopeA.getSolverScope()).thenReturn(solverScope);
        subChainSelector.phaseStarted(phaseScopeA);
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        assertSame(b, pickedScope);
        forager.phaseEnded(localSearchSolverPhaseScope);
    }

    private LocalSearchSolverPhaseScope createLocalSearchSolverPhaseScope() {
        DefaultSolverScope solverScope = new DefaultSolverScope();
        LocalSearchSolverPhaseScope localSearchSolverPhaseScope = new LocalSearchSolverPhaseScope(solverScope);
        DroolsScoreDirectorFactory scoreDirectorFactory = new DroolsScoreDirectorFactory();
        scoreDirectorFactory.setSolutionDescriptor(TestdataSolution.buildSolutionDescriptor());
        scoreDirectorFactory.setScoreDefinition(new SimpleScoreDefinition());
        solverScope.setScoreDirector(scoreDirectorFactory.buildScoreDirector());
        Random workingRandom = mock(Random.class);
        when(workingRandom.nextInt(2)).thenReturn(0);
        solverScope.setWorkingRandom(workingRandom);
        solverScope.setBestScore(DefaultSimpleScore.valueOf(-10));
        LocalSearchStepScope lastLocalSearchStepScope = new LocalSearchStepScope(localSearchSolverPhaseScope);
        lastLocalSearchStepScope.setScore(DefaultSimpleScore.valueOf(-100));
        localSearchSolverPhaseScope.setLastCompletedStepScope(lastLocalSearchStepScope);
        return localSearchSolverPhaseScope;
    }
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    @Test
    public void lateAcceptanceSize() {
        LateAcceptanceAcceptor acceptor = new LateAcceptanceAcceptor();
        acceptor.setLateAcceptanceSize(3);

        DefaultSolverScope solverScope = new DefaultSolverScope();
        solverScope.setBestScore(new DefaultSimpleScore(-1000));
        LocalSearchSolverPhaseScope phaseScope = new LocalSearchSolverPhaseScope(solverScope);
        acceptor.phaseStarted(phaseScope);

        // lateScore = -1000
        LocalSearchStepScope stepScope0 = new LocalSearchStepScope(phaseScope);
        stepScope0.setStepIndex(0);
        LocalSearchMoveScope moveScope1 = buildMoveScope(stepScope0, -500);
        assertEquals(true, acceptor.isAccepted(buildMoveScope(stepScope0, -900)));
        assertEquals(true, acceptor.isAccepted(moveScope1));
        assertEquals(true, acceptor.isAccepted(buildMoveScope(stepScope0, -800)));
        assertEquals(false, acceptor.isAccepted(buildMoveScope(stepScope0, -2000)));
        assertEquals(true, acceptor.isAccepted(buildMoveScope(stepScope0, -1000)));
        assertEquals(true, acceptor.isAccepted(buildMoveScope(stepScope0, -900))); // Repeated call
        stepScope0.setStep(moveScope1.getMove());
        stepScope0.setScore(moveScope1.getScore());
        solverScope.setBestScore(moveScope1.getScore());
        acceptor.stepEnded(stepScope0);

        // lateScore = -1000
        LocalSearchStepScope stepScope1 = new LocalSearchStepScope(phaseScope);
        stepScope1.setStepIndex(1);
        LocalSearchMoveScope moveScope2 = buildMoveScope(stepScope1, -700);
        assertEquals(true, acceptor.isAccepted(buildMoveScope(stepScope1, -900)));
        assertEquals(false, acceptor.isAccepted(buildMoveScope(stepScope1, -2000)));
        assertEquals(true, acceptor.isAccepted(moveScope2));
        assertEquals(true, acceptor.isAccepted(buildMoveScope(stepScope1, -1000)));
        assertEquals(false, acceptor.isAccepted(buildMoveScope(stepScope1, -1001)));
        assertEquals(true, acceptor.isAccepted(buildMoveScope(stepScope0, -900))); // Repeated call
        stepScope1.setStep(moveScope2.getMove());
        stepScope1.setScore(moveScope2.getScore());
        // bestScore unchanged
        acceptor.stepEnded(stepScope1);

        // lateScore = -1000
        LocalSearchStepScope stepScope2 = new LocalSearchStepScope(phaseScope);
        stepScope2.setStepIndex(2);
        LocalSearchMoveScope moveScope4 = buildMoveScope(stepScope1, -400);
        assertEquals(true, acceptor.isAccepted(buildMoveScope(stepScope2, -900)));
        assertEquals(false, acceptor.isAccepted(buildMoveScope(stepScope2, -2000)));
        assertEquals(false, acceptor.isAccepted(buildMoveScope(stepScope2, -1001)));
        assertEquals(true, acceptor.isAccepted(buildMoveScope(stepScope2, -1000)));
        assertEquals(true, acceptor.isAccepted(moveScope4));
        assertEquals(true, acceptor.isAccepted(buildMoveScope(stepScope0, -900))); // Repeated call
        stepScope2.setStep(moveScope4.getMove());
        stepScope2.setScore(moveScope4.getScore());
        solverScope.setBestScore(moveScope4.getScore());
        acceptor.stepEnded(stepScope2);

        // lateScore = -500
        LocalSearchStepScope stepScope3 = new LocalSearchStepScope(phaseScope);
        stepScope3.setStepIndex(3);
        LocalSearchMoveScope moveScope3 = buildMoveScope(stepScope1, -200);
        assertEquals(false, acceptor.isAccepted(buildMoveScope(stepScope3, -900)));
        assertEquals(true, acceptor.isAccepted(buildMoveScope(stepScope3, -500)));
        assertEquals(false, acceptor.isAccepted(buildMoveScope(stepScope3, -501)));
        assertEquals(true, acceptor.isAccepted(moveScope3));
        assertEquals(false, acceptor.isAccepted(buildMoveScope(stepScope3, -2000)));
        assertEquals(false, acceptor.isAccepted(buildMoveScope(stepScope0, -900))); // Repeated call
        stepScope3.setStep(moveScope3.getMove());
        stepScope3.setScore(moveScope3.getScore());
        solverScope.setBestScore(moveScope3.getScore());
        acceptor.stepEnded(stepScope3);

        // lateScore = -700 (not the best score of -500!)
        LocalSearchStepScope stepScope4 = new LocalSearchStepScope(phaseScope);
        stepScope4.setStepIndex(4);
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//        // Post conditions
//        acceptor.phaseEnded(localSearchSolverPhaseScope);
    }

    private LocalSearchSolverPhaseScope createLocalSearchSolverPhaseScope() {
        DefaultSolverScope solverScope = new DefaultSolverScope();
        LocalSearchSolverPhaseScope phaseScope = new LocalSearchSolverPhaseScope(solverScope);
        DroolsScoreDirectorFactory scoreDirectorFactory = new DroolsScoreDirectorFactory();
        scoreDirectorFactory.setSolutionDescriptor(TestdataSolution.buildSolutionDescriptor());
        scoreDirectorFactory.setScoreDefinition(new SimpleScoreDefinition());
        solverScope.setScoreDirector(scoreDirectorFactory.buildScoreDirector());
        solverScope.setWorkingRandom(new Random() {
            public double nextDouble() {
                return 0.2;
            }
        });
        solverScope.setBestScore(DefaultSimpleScore.valueOf(-1000));
        LocalSearchStepScope lastLocalSearchStepScope = new LocalSearchStepScope(phaseScope);
        lastLocalSearchStepScope.setScore(DefaultSimpleScore.valueOf(-1000));
        phaseScope.setLastCompletedStepScope(lastLocalSearchStepScope);
        return phaseScope;
    }
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        TestdataEntity e1 = new TestdataEntity("e1");
        TestdataEntity e2 = new TestdataEntity("e2");
        TestdataEntity e3 = new TestdataEntity("e3");
        TestdataEntity e4 = new TestdataEntity("e4");

        DefaultSolverScope solverScope = new DefaultSolverScope();
        solverScope.setBestScore(new DefaultSimpleScore(0));
        LocalSearchSolverPhaseScope phaseScope = new LocalSearchSolverPhaseScope(solverScope);
        acceptor.phaseStarted(phaseScope);

        LocalSearchStepScope stepScope0 = new LocalSearchStepScope(phaseScope);
        stepScope0.setStepIndex(0);
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        TestdataEntity e1 = new TestdataEntity("e1");
        TestdataEntity e2 = new TestdataEntity("e2");
        TestdataEntity e3 = new TestdataEntity("e3");
        TestdataEntity e4 = new TestdataEntity("e4");

        DefaultSolverScope solverScope = new DefaultSolverScope();
        solverScope.setBestScore(new DefaultSimpleScore(0));
        LocalSearchSolverPhaseScope phaseScope = new LocalSearchSolverPhaseScope(solverScope);
        acceptor.phaseStarted(phaseScope);

        LocalSearchStepScope stepScope0 = new LocalSearchStepScope(phaseScope);
        stepScope0.setStepIndex(0);
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        acceptor.setAspirationEnabled(true);

        TestdataEntity e0 = new TestdataEntity("e0");
        TestdataEntity e1 = new TestdataEntity("e1");

        DefaultSolverScope solverScope = new DefaultSolverScope();
        solverScope.setBestScore(new DefaultSimpleScore(-100));
        LocalSearchSolverPhaseScope phaseScope = new LocalSearchSolverPhaseScope(solverScope);
        acceptor.phaseStarted(phaseScope);

        LocalSearchStepScope stepScope0 = new LocalSearchStepScope(phaseScope);
        stepScope0.setStepIndex(0);
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