Examples of jsprit.core.algorithm.selector.SolutionSelector

jsprit.core.algorithm.selector.SolutionSelector

    SearchStrategyManager searchStratManager = new SearchStrategyManager();
    List<HierarchicalConfiguration> strategyConfigs = config.configurationsAt("strategy.searchStrategies.searchStrategy");
    for(HierarchicalConfiguration strategyConfig : strategyConfigs){
      String name = getName(strategyConfig);
      SolutionAcceptor acceptor = getAcceptor(strategyConfig,vrp,algorithmListeners,definedClasses,solutionMemory);
      SolutionSelector selector = getSelector(strategyConfig,vrp,algorithmListeners,definedClasses);
      
      SearchStrategy strategy = new SearchStrategy(selector, acceptor, costCalculator);
      strategy.setName(name);
      List<HierarchicalConfiguration> modulesConfig = strategyConfig.configurationsAt("modules.module");
      for(HierarchicalConfiguration moduleConfig : modulesConfig){

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    if(selectorName == null) throw new IllegalStateException("no solutionSelector defined. define either \"selectRandomly\" or \"selectBest\"");
    String selectorId = strategyConfig.getString("selector[@id]");
    if(selectorId == null) selectorId="noId";
    ModKey modKey = makeKey(selectorName,selectorId);
    SelectorKey selectorKey = new SelectorKey(modKey);
    SolutionSelector definedSelector = definedSelectors.get(selectorKey); 
    if(definedSelector != null) {
      return definedSelector;
    }
    if(selectorName.equals("selectRandomly")){
      SelectRandomly selector = SelectRandomly.getInstance();

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public class SearchStrategyTest {
  
  @Test(expected=IllegalStateException.class)
  public void whenANullModule_IsAdded_throwException(){
    SolutionSelector select = mock(SolutionSelector.class);
    SolutionAcceptor accept = mock(SolutionAcceptor.class);
    SolutionCostCalculator calc = mock(SolutionCostCalculator.class);
    
    SearchStrategy strat = new SearchStrategy(select, accept, calc);
    strat.addModule(null);

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  }
  
  @Test
  public void whenStratRunsWithOneModule_runItOnes(){
    SolutionSelector select = mock(SolutionSelector.class);
    SolutionAcceptor accept = mock(SolutionAcceptor.class);
    SolutionCostCalculator calc = mock(SolutionCostCalculator.class);
    
    final VehicleRoutingProblem vrp = mock(VehicleRoutingProblem.class);
    final VehicleRoutingProblemSolution newSol = mock(VehicleRoutingProblemSolution.class);
    
    when(select.selectSolution(null)).thenReturn(newSol);
    
    final Collection<Integer> runs = new ArrayList<Integer>();
    
    SearchStrategy strat = new SearchStrategy(select, accept, calc);
    SearchStrategyModule mod = new SearchStrategyModule() {

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    assertEquals(runs.size(), 1);
  }
  
  @Test
  public void whenStratRunsWithTwoModule_runItTwice(){
    SolutionSelector select = mock(SolutionSelector.class);
    SolutionAcceptor accept = mock(SolutionAcceptor.class);
    SolutionCostCalculator calc = mock(SolutionCostCalculator.class);
    
    final VehicleRoutingProblem vrp = mock(VehicleRoutingProblem.class);
    final VehicleRoutingProblemSolution newSol = mock(VehicleRoutingProblemSolution.class);
    
    when(select.selectSolution(null)).thenReturn(newSol);
    
    final Collection<Integer> runs = new ArrayList<Integer>();
    
    SearchStrategy strat = new SearchStrategy(select, accept, calc);

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    ModKey key = new ModKey(acceptorName,acceptorId);
    AcceptorKey accKey = new AcceptorKey(key);
    SolutionAcceptor acceptor =  new GreedyAcceptance(1);
    
    SelectorKey selKey = new SelectorKey(new ModKey(selectorName,selectorId));
    SolutionSelector selector = new SelectBest();
    
    typedMap.put(accKey, acceptor);
    typedMap.put(selKey, selector);
    
    assertEquals(acceptor,typedMap.get(accKey));

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    ModKey key = new ModKey(acceptorName,acceptorId);
    AcceptorKey accKey = new AcceptorKey(key);
    SolutionAcceptor acceptor =  new GreedyAcceptance(1);
    
    SelectorKey selKey = new SelectorKey(new ModKey(selectorName,selectorId));
    SolutionSelector selector = new SelectBest();
    
    AcceptorKey accKey2 = new AcceptorKey(new ModKey(acceptorName2,acceptorId2));
    SolutionAcceptor acceptor2 =  new GreedyAcceptance(1);
    
    typedMap.put(accKey, acceptor);

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    assertEquals(runs.size(), 2);
  }
  
  @Test
  public void whenStratRunsWithNModule_runItNTimes(){
    SolutionSelector select = mock(SolutionSelector.class);
    SolutionAcceptor accept = mock(SolutionAcceptor.class);
    SolutionCostCalculator calc = mock(SolutionCostCalculator.class);
    
    final VehicleRoutingProblem vrp = mock(VehicleRoutingProblem.class);
    final VehicleRoutingProblemSolution newSol = mock(VehicleRoutingProblemSolution.class);
    
    when(select.selectSolution(null)).thenReturn(newSol);
    
    int N = new Random().nextInt(1000);
    
    final Collection<Integer> runs = new ArrayList<Integer>();

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    assertEquals(runs.size(), N);
  }
  
  @Test(expected=IllegalStateException.class) 
  public void whenSelectorDeliversNullSolution_throwException(){
    SolutionSelector select = mock(SolutionSelector.class);
    SolutionAcceptor accept = mock(SolutionAcceptor.class);
    SolutionCostCalculator calc = mock(SolutionCostCalculator.class);
    
    final VehicleRoutingProblem vrp = mock(VehicleRoutingProblem.class);
    
    when(select.selectSolution(null)).thenReturn(null);
    
    int N = new Random().nextInt(1000);
    
    final Collection<Integer> runs = new ArrayList<Integer>();

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Related Classes of jsprit.core.algorithm.selector.SolutionSelector

jsprit.core.algorithm.io.TestAlgorithmReader

jsprit.core.algorithm.io.VehicleRoutingAlgorithms

jsprit.core.algorithm.SearchStrategyTest

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