001/*****************************************************************************
002 * Copyright (C) PicoContainer Organization. All rights reserved.            *
003 * ------------------------------------------------------------------------- *
004 * The software in this package is published under the terms of the BSD      *
005 * style license a copy of which has been included with this distribution in *
006 * the LICENSE.txt file.                                                     *
007 *                                                                           *
008 * Original code by Johan Hoogenboezem (thanks Johan)                        *
009 *****************************************************************************/
010package org.picocontainer.injectors;
011
012import static org.junit.Assert.*;
013
014import org.junit.*;
015import org.picocontainer.*;
016import org.picocontainer.behaviors.*;
017
018import java.lang.reflect.Type;
019
020public class IntoTypeTestCase {
021
022    @Test
023    public void testThatIntoSetupCorrectlyForNestedInjectionViaAFactory() throws Exception {
024        MutablePicoContainer pico = new DefaultPicoContainer(new Caching());
025        pico.addAdapter(new AliceFactory());
026        pico.addComponent(Bob.class);
027        System.out.println("Going to ask pico for a Bob");
028        assertTrue(Bob.class.isAssignableFrom(Bob.class));
029        Bob bob = pico.getComponent(Bob.class);
030        assertNotNull(bob);
031        assertNotNull(bob.getAlice());
032    }
033
034
035    public static interface Alice {
036    }
037
038
039    public static class AliceImpl implements Alice {
040    }
041
042    public static class Bob {
043
044        private Alice alice;
045
046        public Bob(Alice alice) {
047            System.out.println("Bob gets an Alice: " + alice);
048            this.alice = alice;
049        }
050
051        public Alice getAlice() {
052            return alice;
053        }
054
055    }
056
057
058    public static class AliceFactory extends FactoryInjector<Alice> {
059        @Override
060        public Alice getComponentInstance(PicoContainer container, Type into) {
061            // System.out.println("Manufacturing an Alice for " + ((InjectInto) into).getIntoClass());
062            if (Bob.class.isAssignableFrom(((InjectInto) into).getIntoClass())) {
063                return new AliceImpl();
064            } else {
065                fail("Expected a " + Bob.class + ", but got a " + into + " instead.");
066                return null;
067            }
068        }
069
070    }
071
072
073}