Examples of org.picocontainer.MutablePicoContainer

org.picocontainer.MutablePicoContainer
This is the core interface used for registration of components with a container. It is possible to register {@link #registerComponentImplementation(Object,Class) an implementation class}, {@link #registerComponentInstance(Object) aninstance} or {@link #registerComponent(ComponentAdapter) a ComponentAdapter}. @author Paul Hammant @author Aslak Hellesøy @author Jon Tirsén @version $Revision: 1800 $ @see See package description for basic overview how to use PicoContainer. @since 1.0

        assertNotNull(child);
    }


    public void testMakingOfChildContainerPercolatesLifecycleManager() {
        TestLifecycleManager lifecycleManager = new TestLifecycleManager();
        final MutablePicoContainer parent = createPicoContainer(null, lifecycleManager);
        parent.registerComponentImplementation("one", TestLifecycleComponent.class);
        MutablePicoContainer child = parent.makeChildContainer();
        assertNotNull(child);
        child.registerComponentImplementation("two", TestLifecycleComponent.class);
        parent.start();


        //TODO - The LifecycleManager reference in child containers is not used. Thus is is almost pointless
        // The reason is becuase DefaultPicoContainer's accept() method visits child containerson its own.
        // This may be file for visiting components in a tree for general cases, but for lifecycle, we

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        public void stop() {
        }
    }


    public void testStartStopAndDisposeNotCascadedtoRemovedChildren() {
        final MutablePicoContainer parent = createPicoContainer(null);
        parent.registerComponentInstance(new StringBuffer());
        StringBuffer sb = (StringBuffer) parent.getComponentInstancesOfType(StringBuffer.class).get(0);


        final MutablePicoContainer child = createPicoContainer(parent);
        assertTrue(parent.addChildContainer(child));
        child.registerComponentImplementation(LifeCycleMonitoring.class);
        assertTrue(parent.removeChildContainer(child));
        parent.start();
        assertTrue(sb.toString().indexOf("-started") == -1);
        parent.stop();
        assertTrue(sb.toString().indexOf("-stopped") == -1);

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    }


    public void testShouldCascadeStartStopAndDisposeToChild() {


        StringBuffer sb = new StringBuffer();
        final MutablePicoContainer parent = createPicoContainer(null);
        parent.registerComponentInstance(sb);
        parent.registerComponentImplementation(Map.class, HashMap.class);


        final MutablePicoContainer child = parent.makeChildContainer();
        child.registerComponentImplementation(LifeCycleMonitoring.class);


        Map map = (Map) parent.getComponentInstance(Map.class);
        assertNotNull(map);
        assertTrue(sb.toString().indexOf("-started") == -1);

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        }


    }


    public void testAcceptImplementsBreadthFirstStrategy() {
        final MutablePicoContainer parent = createPicoContainer(null);
        final MutablePicoContainer child = parent.makeChildContainer();
        ComponentAdapter hashMapAdapter = parent.registerComponent(new ConstructorInjectionComponentAdapter(HashMap.class, HashMap.class));
        ComponentAdapter hashSetAdapter = parent.registerComponent(new ConstructorInjectionComponentAdapter(HashSet.class, HashSet.class));
        ComponentAdapter stringAdapter = parent.registerComponent(new InstanceComponentAdapter(String.class, "foo"));
        ComponentAdapter arrayListAdapter = child.registerComponent(new ConstructorInjectionComponentAdapter(ArrayList.class, ArrayList.class));
        Parameter componentParameter = BasicComponentParameter.BASIC_DEFAULT;
        Parameter throwableParameter = new ConstantParameter(new Throwable("bar"));
        ComponentAdapter exceptionAdapter = child.registerComponent(new ConstructorInjectionComponentAdapter(Exception.class, Exception.class, new Parameter[]{
            componentParameter,
            throwableParameter
        }));


        List expectedList = Arrays.asList(new Object[]{

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        assertEquals(expectedList, visitedList);
    }


    public void testAmbiguousDependencies() throws PicoRegistrationException, PicoInitializationException {


        MutablePicoContainer pico = this.createPicoContainer(null);


        // Register two Touchables that Fred will be confused about
        pico.registerComponentImplementation(SimpleTouchable.class);
        pico.registerComponentImplementation(DerivedTouchable.class);


        // Register a confused DependsOnTouchable
        pico.registerComponentImplementation(DependsOnTouchable.class);


        try {
            pico.getComponentInstance(DependsOnTouchable.class);
            fail("DependsOnTouchable should have been confused about the two Touchables");
        } catch (AmbiguousComponentResolutionException e) {
            List componentImplementations = Arrays.asList(e.getAmbiguousComponentKeys());
            assertTrue(componentImplementations.contains(DerivedTouchable.class));
            assertTrue(componentImplementations.contains(SimpleTouchable.class));

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    public void testAllUnsatisfiableDependenciesAreSignalled() {
        SetterInjectionComponentAdapter aAdapter = new SetterInjectionComponentAdapter("a", A.class, null);
        SetterInjectionComponentAdapter bAdapter = new SetterInjectionComponentAdapter("b", B.class, null);


        MutablePicoContainer pico = new DefaultPicoContainer();
        pico.registerComponent(bAdapter);
        pico.registerComponent(aAdapter);


        try {
            aAdapter.getComponentInstance(pico);
        } catch (UnsatisfiableDependenciesException e) {
            assertTrue(e.getUnsatisfiableDependencies().contains(List.class));

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    public void testHybridBeans() {
        SetterInjectionComponentAdapter bAdapter = new SetterInjectionComponentAdapter("b", B.class, null);
        SetterInjectionComponentAdapter cAdapter = new SetterInjectionComponentAdapter("c", C.class, null);
        SetterInjectionComponentAdapter cNullAdapter = new SetterInjectionComponentAdapter("c0", C.class, null);


        MutablePicoContainer pico = new DefaultPicoContainer();
        pico.registerComponent(bAdapter);
        pico.registerComponent(cAdapter);
        pico.registerComponent(cNullAdapter);
        pico.registerComponentImplementation(ArrayList.class);


        C c = (C) cAdapter.getComponentInstance(pico);
        assertTrue(c.instantiatedAsBean());
        C c0 = (C) cNullAdapter.getComponentInstance(pico);
        assertTrue(c0.instantiatedAsBean());

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    }


    // TODO PICO-188
    // http://jira.codehaus.org/browse/PICO-188
    public void FIXME_testShouldBeAbleToHandleMutualDependenciesWithSetterInjection() {
        MutablePicoContainer pico = new DefaultPicoContainer(new CachingComponentAdapterFactory(
                new SetterInjectionComponentAdapterFactory()));


        pico.registerComponentImplementation(Yin.class);
        pico.registerComponentImplementation(Yang.class);


        Yin yin = (Yin) pico.getComponentInstance(Yin.class);
        Yang yang = (Yang) pico.getComponentInstance(Yang.class);


        assertSame(yin, yang.getYin());
        assertSame(yang, yin.getYang());
    }

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        }
    }




    public void testComponentRegistrationMismatch() throws PicoInstantiationException, PicoRegistrationException, PicoIntrospectionException {
        MutablePicoContainer pico = new DefaultPicoContainer();


        try {
            pico.registerComponentImplementation(List.class, SimpleTouchable.class);
        } catch (AssignabilityRegistrationException e) {
            // not worded in message
            assertTrue(e.getMessage().indexOf(List.class.getName()) > 0);
            assertTrue(e.getMessage().indexOf(SimpleTouchable.class.getName()) > 0);
        }

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    }


    public void testOmeletteCanHaveDifferentCheeseWithAFunnyComponentAdapter() {
        Map cheeseMap = new HashMap();


        MutablePicoContainer pico = new DefaultPicoContainer(new ConstructorInjectionComponentAdapterFactory());
        pico.registerComponentImplementation(Omelette.class);
        pico.registerComponent(new CheeseComponentAdapter("scott", Gouda.class, cheeseMap));


        Cheese gouda = new Gouda();
        cheeseMap.put("cheese", gouda);
        Omelette goudaOmelette = (Omelette) pico.getComponentInstance(Omelette.class);
        assertSame(gouda, goudaOmelette.getCheese());


        Cheese roquefort = new Roquefort();
        cheeseMap.put("cheese", roquefort);
        Omelette roquefortOmelette = (Omelette) pico.getComponentInstance(Omelette.class);
        assertSame(roquefort, roquefortOmelette.getCheese());
    }

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