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

        pico.registerComponentInstance(Map.class, map);
        assertSame(map, pico.getComponentInstance(Map.class));
    }


    public void testAmbiguousResolution() throws PicoRegistrationException, PicoInitializationException {
        MutablePicoContainer pico = createPicoContainer(null);
        pico.registerComponentImplementation("ping", String.class);
        pico.registerComponentInstance("pong", "pang");
        try {
            pico.getComponentInstance(String.class);
        } catch (AmbiguousComponentResolutionException e) {
            assertTrue(e.getMessage().indexOf("java.lang.String") != -1);
        }
    }

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            assertTrue(e.getMessage().indexOf("java.lang.String") != -1);
        }
    }


    public void testLookupWithUnregisteredKeyReturnsNull() throws PicoIntrospectionException, PicoInitializationException, AssignabilityRegistrationException, NotConcreteRegistrationException {
        MutablePicoContainer pico = createPicoContainer(null);
        assertNull(pico.getComponentInstance(String.class));
    }

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            list.add("something");
        }
    }


    public void TODOtestMulticasterResolution() throws PicoRegistrationException, PicoInitializationException {
        MutablePicoContainer pico = createPicoContainer(null);


        pico.registerComponentImplementation(ListAdder.class);
        pico.registerComponentImplementation("a", ArrayList.class);
        pico.registerComponentImplementation("l", LinkedList.class);


        pico.getComponentInstance(ListAdder.class);


        List a = (List) pico.getComponentInstance("a");
        assertTrue(a.contains("something"));


        List l = (List) pico.getComponentInstance("l");
        assertTrue(l.contains("something"));
    }

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        List l = (List) pico.getComponentInstance("l");
        assertTrue(l.contains("something"));
    }


    public void testUnsatisfiedComponentsExceptionGivesVerboseEnoughErrorMessage() {
        MutablePicoContainer pico = createPicoContainer(null);
        pico.registerComponentImplementation(ComponentD.class);


        try {
            pico.getComponentInstance(ComponentD.class);
        } catch (UnsatisfiableDependenciesException e) {
            Set unsatisfiableDependencies = e.getUnsatisfiableDependencies();
            assertEquals(1, unsatisfiableDependencies.size());


            List list = (List) unsatisfiableDependencies.iterator().next();

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            assertEquals(expectedList, list);
        }
    }


    public void testCyclicDependencyThrowsCyclicDependencyException() {
        MutablePicoContainer pico = createPicoContainer(null);
        pico.registerComponentImplementation(ComponentB.class);
        pico.registerComponentImplementation(ComponentD.class);
        pico.registerComponentImplementation(ComponentE.class);


        try {
            pico.getComponentInstance(ComponentD.class);
            fail("CyclicDependencyException expected");
        } catch (CyclicDependencyException e) {
            // CyclicDependencyException reports now the stack.
            //final List dependencies = Arrays.asList(ComponentD.class.getConstructors()[0].getParameterTypes());
            final List dependencies = Arrays.asList(new Class[]{ComponentD.class, ComponentE.class, ComponentD.class});

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            fail();
        }
    }


    public void testRemovalNonRegisteredComponentAdapterWorksAndReturnsNull() {
        final MutablePicoContainer picoContainer = createPicoContainer(null);
        assertNull(picoContainer.unregisterComponent("COMPONENT DOES NOT EXIST"));
    }

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    public void testComponentAdapterRegistrationOrderIsMaintained() {


        ConstructorInjectionComponentAdapter c1 = new ConstructorInjectionComponentAdapter("1", Object.class);
        ConstructorInjectionComponentAdapter c2 = new ConstructorInjectionComponentAdapter("2", String.class);


        MutablePicoContainer picoContainer = createPicoContainer(null);
        picoContainer.registerComponent(c1);
        picoContainer.registerComponent(c2);
        assertEquals("registration order should be maintained",
                Arrays.asList(new Object[]{c1, c2}), picoContainer.getComponentAdapters());


        picoContainer.getComponentInstances(); // create all the instances at once
        assertFalse("instances should be created in same order as adapters are created",
                picoContainer.getComponentInstances().get(0) instanceof String);
        assertTrue("instances should be created in same order as adapters are created",
                picoContainer.getComponentInstances().get(1) instanceof String);


        MutablePicoContainer reversedPicoContainer = createPicoContainer(null);
        reversedPicoContainer.registerComponent(c2);
        reversedPicoContainer.registerComponent(c1);
        assertEquals("registration order should be maintained",
                Arrays.asList(new Object[]{c2, c1}), reversedPicoContainer.getComponentAdapters());


        reversedPicoContainer.getComponentInstances(); // create all the instances at once
        assertTrue("instances should be created in same order as adapters are created",
                reversedPicoContainer.getComponentInstances().get(0) instanceof String);
        assertFalse("instances should be created in same order as adapters are created",
                reversedPicoContainer.getComponentInstances().get(1) instanceof String);
    }

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            this.washable = washable;
        }
    }


    public void testSameInstanceCanBeUsedAsDifferentType() {
        MutablePicoContainer pico = createPicoContainer(null);
        pico.registerComponentImplementation("wt", WashableTouchable.class);
        pico.registerComponentImplementation("nw", NeedsWashable.class);
        pico.registerComponentImplementation("nt", NeedsTouchable.class);


        NeedsWashable nw = (NeedsWashable) pico.getComponentInstance("nw");
        NeedsTouchable nt = (NeedsTouchable) pico.getComponentInstance("nt");
        assertSame(nw.washable, nt.touchable);
    }

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        NeedsTouchable nt = (NeedsTouchable) pico.getComponentInstance("nt");
        assertSame(nw.washable, nt.touchable);
    }


    public void testRegisterComponentWithObjectBadType() throws PicoIntrospectionException {
        MutablePicoContainer pico = createPicoContainer(null);


        try {
            pico.registerComponentInstance(Serializable.class, new Object());
            fail("Shouldn't be able to register an Object.class as Serializable because it is not, " +
                    "it does not implement it, Object.class does not implement much.");
        } catch (AssignabilityRegistrationException e) {
        }

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        }
    }


    // http://jira.codehaus.org/secure/ViewIssue.jspa?key=PICO-52
    public void testPico52() {
        MutablePicoContainer pico = createPicoContainer(null);


        pico.registerComponentImplementation("foo", JMSService.class, new Parameter[]{
            new ConstantParameter("0"),
            new ConstantParameter("something"),
        });
        JMSService jms = (JMSService) pico.getComponentInstance("foo");
        assertEquals("0", jms.serverid);
        assertEquals("something", jms.path);
    }

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