xmlbeanfactorytests.java

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		xbf.preInstantiateSingletons();
		xbf.destroySingletons();
		assertTrue(PreparingBean1.prepared);
		assertTrue(PreparingBean1.destroyed);
		assertTrue(PreparingBean2.prepared);
		assertTrue(PreparingBean2.destroyed);
		assertEquals(nrOfHoldingBeans, DependingBean.destroyCount);
		if (!xbf.getBeansOfType(HoldingBean.class, false, false).isEmpty()) {
			assertEquals(nrOfHoldingBeans, HoldingBean.destroyCount);
		}
	}

	/**
	 * When using a BeanFactory. singletons are of course not pre-instantiated.
	 * So rubbish class names in bean defs must now not be 'resolved' when the
	 * bean def is being parsed, 'cos everything on a bean def is now lazy, but
	 * must rather only be picked up when the bean is instantiated.
	 */
	public void testClassNotFoundWithDefaultBeanClassLoader() {
		BeanFactory factory = new XmlBeanFactory(new ClassPathResource("classNotFound.xml", getClass()));
		// cool, no errors, so the rubbish class name in the bean def was not resolved
		try {
			// let's resolve the bean definition; must blow up
			factory.getBean("classNotFound");
			fail("Must have thrown a CannotLoadBeanClassException");
		}
		catch (CannotLoadBeanClassException ex) {
			assertTrue(ex.getResourceDescription().indexOf("classNotFound.xml") != -1);
			assertTrue(ex.getCause() instanceof ClassNotFoundException);
		}
	}

	public void testClassNotFoundWithNoBeanClassLoader() {
		DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
		XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(bf);
		reader.setBeanClassLoader(null);
		reader.loadBeanDefinitions(new ClassPathResource("classNotFound.xml", getClass()));
		assertTrue(bf.getBeanDefinition("classNotFound") instanceof RootBeanDefinition);
		assertEquals("WhatALotOfRubbish", bf.getBeanDefinition("classNotFound").getBeanClassName());
	}

	public void testResourceAndInputStream() throws IOException {
		XmlBeanFactory xbf = new XmlBeanFactory(new ClassPathResource("resource.xml", getClass()));
		// comes from "resourceImport.xml"
		ResourceTestBean resource1 = (ResourceTestBean) xbf.getBean("resource1");
		// comes from "resource.xml"
		ResourceTestBean resource2 = (ResourceTestBean) xbf.getBean("resource2");

		assertTrue(resource1.getResource() instanceof ClassPathResource);
		StringWriter writer = new StringWriter();
		FileCopyUtils.copy(new InputStreamReader(resource1.getResource().getInputStream()), writer);
		assertEquals("test", writer.toString());
		writer = new StringWriter();
		FileCopyUtils.copy(new InputStreamReader(resource1.getInputStream()), writer);
		assertEquals("test", writer.toString());
		writer = new StringWriter();
		FileCopyUtils.copy(new InputStreamReader(resource2.getResource().getInputStream()), writer);
		assertEquals("test", writer.toString());
		writer = new StringWriter();
		FileCopyUtils.copy(new InputStreamReader(resource2.getInputStream()), writer);
		assertEquals("test", writer.toString());
	}

	public void testClassPathResourceWithImport() {
		XmlBeanFactory xbf = new XmlBeanFactory(
				new ClassPathResource("org/springframework/beans/factory/xml/resource.xml"));
		// comes from "resourceImport.xml"
		xbf.getBean("resource1", ResourceTestBean.class);
		// comes from "resource.xml"
		xbf.getBean("resource2", ResourceTestBean.class);
	}

	public void testUrlResourceWithImport() {
		URL url = getClass().getResource("resource.xml");
		XmlBeanFactory xbf = new XmlBeanFactory(new UrlResource(url));
		// comes from "resourceImport.xml"
		xbf.getBean("resource1", ResourceTestBean.class);
		// comes from "resource.xml"
		xbf.getBean("resource2", ResourceTestBean.class);
	}

	public void testFileSystemResourceWithImport() {
		String file = getClass().getResource("resource.xml").getFile();
		XmlBeanFactory xbf = new XmlBeanFactory(new FileSystemResource(file));
		// comes from "resourceImport.xml"
		xbf.getBean("resource1", ResourceTestBean.class);
		// comes from "resource.xml"
		xbf.getBean("resource2", ResourceTestBean.class);
	}

	public void testLookupOverrideMethodsWithSetterInjection() {
		DefaultListableBeanFactory xbf = new DefaultListableBeanFactory();
		XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(xbf);
		reader.setValidationMode(XmlBeanDefinitionReader.VALIDATION_AUTO);
		reader.loadBeanDefinitions(new ClassPathResource("overrides.xml", getClass()));

		testLookupOverrideMethodsWithSetterInjection(xbf, "overrideOneMethod", true);
		// Should work identically on subclass definition, in which lookup
		// methods are inherited
		testLookupOverrideMethodsWithSetterInjection(xbf, "overrideInheritedMethod", true);

		// Check cost of repeated construction of beans with method overrides
		// Will pick up misuse of CGLIB
		int howmany = 100;
		StopWatch sw = new StopWatch();
		sw.start("Look up " + howmany + " prototype bean instances with method overrides");
		for (int i = 0; i < howmany; i++) {
			testLookupOverrideMethodsWithSetterInjection(xbf, "overrideOnPrototype", false);
		}
		sw.stop();
		System.out.println(sw);
		if (!LogFactory.getLog(DefaultListableBeanFactory.class).isDebugEnabled()) {
			assertTrue(sw.getTotalTimeMillis() < 1000);
		}

		// Now test distinct bean with swapped value in factory, to ensure the two are independent
		OverrideOneMethod swappedOom = (OverrideOneMethod) xbf.getBean("overrideOneMethodSwappedReturnValues");

		TestBean tb = swappedOom.getPrototypeDependency();
		assertEquals("David", tb.getName());
		tb = swappedOom.protectedOverrideSingleton();
		assertEquals("Jenny", tb.getName());
	}

	private void testLookupOverrideMethodsWithSetterInjection(BeanFactory xbf, String beanName, boolean singleton) {
		OverrideOneMethod oom = (OverrideOneMethod) xbf.getBean(beanName);

		if (singleton) {
			assertSame(oom, xbf.getBean(beanName));
		}
		else {
			assertNotSame(oom, xbf.getBean(beanName));
		}

		TestBean jenny1 = oom.getPrototypeDependency();
		assertEquals("Jenny", jenny1.getName());
		TestBean jenny2 = oom.getPrototypeDependency();
		assertEquals("Jenny", jenny2.getName());
		assertNotSame(jenny1, jenny2);

		// Check that the bean can invoke the overridden method on itself
		// This differs from Spring's AOP support, which has a distinct notion
		// of a "target" object, meaning that the target needs explicit knowledge
		// of AOP proxying to invoke an advised method on itself.
		TestBean jenny3 = oom.invokesOverridenMethodOnSelf();
		assertEquals("Jenny", jenny3.getName());
		assertNotSame(jenny1, jenny3);

		// Now try protected method, and singleton
		TestBean dave1 = oom.protectedOverrideSingleton();
		assertEquals("David", dave1.getName());
		TestBean dave2 = oom.protectedOverrideSingleton();
		assertEquals("David", dave2.getName());
		assertSame(dave1, dave2);
	}

	public void testReplaceMethodOverrideWithSetterInjection() {
		DefaultListableBeanFactory xbf = new DefaultListableBeanFactory();
		XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(xbf);
		reader.setValidationMode(XmlBeanDefinitionReader.VALIDATION_AUTO);
		reader.loadBeanDefinitions(new ClassPathResource("delegationOverrides.xml", getClass()));

		OverrideOneMethod oom = (OverrideOneMethod) xbf.getBean("overrideOneMethod");

		// Same contract as for overrides.xml
		TestBean jenny1 = oom.getPrototypeDependency();
		assertEquals("Jenny", jenny1.getName());
		TestBean jenny2 = oom.getPrototypeDependency();
		assertEquals("Jenny", jenny2.getName());
		assertNotSame(jenny1, jenny2);

		TestBean notJenny = oom.getPrototypeDependency("someParam");
		assertTrue(!"Jenny".equals(notJenny.getName()));

		// Now try protected method, and singleton
		TestBean dave1 = oom.protectedOverrideSingleton();
		assertEquals("David", dave1.getName());
		TestBean dave2 = oom.protectedOverrideSingleton();
		assertEquals("David", dave2.getName());
		assertSame(dave1, dave2);

		// Check unadvised behaviour
		String str = "woierowijeiowiej";
		assertEquals(str, oom.echo(str));

		// Now test replace
		String s = "this is not a palindrome";
		String reverse = new StringBuffer(s).reverse().toString();
		assertEquals("Should have overridden to reverse, not echo", reverse, oom.replaceMe(s));

		assertEquals("Should have overridden no-arg overloaded replaceMe method to return fixed value",
				FixedMethodReplacer.VALUE, oom.replaceMe());

		OverrideOneMethodSubclass ooms = (OverrideOneMethodSubclass) xbf.getBean("replaceVoidMethod");
		DoSomethingReplacer dos = (DoSomethingReplacer) xbf.getBean("doSomethingReplacer");
		assertEquals(null, dos.lastArg);
		String s1 = "";
		String s2 = "foo bar black sheep";
		ooms.doSomething(s1);
		assertEquals(s1, dos.lastArg);
		ooms.doSomething(s2);
		assertEquals(s2, dos.lastArg);
	}

	public void testLookupOverrideOneMethodWithConstructorInjection() {
		DefaultListableBeanFactory xbf = new DefaultListableBeanFactory();
		XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(xbf);
		reader.setValidationMode(XmlBeanDefinitionReader.VALIDATION_AUTO);
		reader.loadBeanDefinitions(new ClassPathResource("constructorOverrides.xml", getClass()));

		ConstructorInjectedOverrides cio = (ConstructorInjectedOverrides) xbf.getBean("constructorOverrides");

		// Check that the setter was invoked...
		// We should be able to combine Constructor and
		// Setter Injection
		assertEquals("Setter string was set", "from property element", cio.getSetterString());

		// Jenny is a singleton
		TestBean jenny = (TestBean) xbf.getBean("jenny");
		assertSame(jenny, cio.getTestBean());
		assertSame(jenny, cio.getTestBean());
		FactoryMethods fm1 = cio.createFactoryMethods();
		FactoryMethods fm2 = cio.createFactoryMethods();
		assertNotSame("FactoryMethods reference is to a prototype", fm1, fm2);
		assertSame("The two prototypes hold the same singleton reference",
				fm1.getTestBean(), fm2.getTestBean());
	}

	public void testRejectsOverrideOfBogusMethodName() {
		DefaultListableBeanFactory xbf = new DefaultListableBeanFactory();
		XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(xbf);
		reader.setValidationMode(XmlBeanDefinitionReader.VALIDATION_AUTO);
		try {
			reader.loadBeanDefinitions(new ClassPathResource("invalidOverridesNoSuchMethod.xml", getClass()));
			xbf.getBean("constructorOverrides");
			fail("Shouldn't allow override of bogus method");
		}
		catch (BeanDefinitionStoreException ex) {
			// Check that the bogus method name was included in the error message
			assertTrue("Bogus method name correctly reported", ex.getMessage().indexOf("bogusMethod") != -1);
		}
	}

	/**
	 * Assert the presence of this bug until we resolve it.
	 */
	public void testSerializabilityOfMethodReplacer() throws Exception {
		try {
			BUGtestSerializableMethodReplacerAndSuperclass();
			fail();
		}
		catch (AssertionFailedError ex) {
			System.err.println("****** SPR-356: Objects with MethodReplace overrides are not serializable");
		}
	}

	public void BUGtestSerializableMethodReplacerAndSuperclass() throws IOException, ClassNotFoundException {
		DefaultListableBeanFactory xbf = new DefaultListableBeanFactory();
		XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(xbf);
		reader.setValidationMode(XmlBeanDefinitionReader.VALIDATION_AUTO);
		reader.loadBeanDefinitions(new ClassPathResource("delegationOverrides.xml", getClass()));
		SerializableMethodReplacerCandidate s = (SerializableMethodReplacerCandidate) xbf.getBean("serializableReplacer");
		String forwards = "this is forwards";
		String backwards = new StringBuffer(forwards).reverse().toString();
		assertEquals(backwards, s.replaceMe(forwards));
		assertTrue(SerializationTestUtils.isSerializable(s));
		s = (SerializableMethodReplacerCandidate) SerializationTestUtils.serializeAndDeserialize(s);
		assertEquals("Method replace still works after serialization and deserialization", backwards, s.replaceMe(forwards));
	}

	public void testFactoryMethodsSingletonOnTargetClass() {
		DefaultListableBeanFactory xbf = new DefaultListableBeanFactory();
		XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(xbf);
		reader.setValidationMode(XmlBeanDefinitionReader.VALIDATION_AUTO);
		reader.loadBeanDefinitions(new ClassPathResource("factory-methods.xml", getClass()));

		TestBean tb = (TestBean) xbf.getBean("defaultTestBean");
		assertEquals("defaultInstance", tb.getName());
		assertEquals(1, tb.getAge());

		FactoryMethods fm = (FactoryMethods) xbf.getBean("default");
		assertEquals(0, fm.getNum());
		assertEquals("default", fm.getName());
		assertEquals("defaultInstance", fm.getTestBean().getName());
		assertEquals("setterString", fm.getStringValue());

		fm = (FactoryMethods) xbf.getBean("testBeanOnly");
		assertEquals(0, fm.getNum());
		assertEquals("default", fm.getName());
		// This comes from the test bean
		assertEquals("Juergen", fm.getTestBean().getName());

		fm = (FactoryMethods) xbf.getBean("full");
		assertEquals(27, fm.getNum());
		assertEquals("gotcha", fm.getName());
		assertEquals("Juergen", fm.getTestBean().getName());

		FactoryMethods fm2 = (FactoryMethods) xbf.getBean("full");
		assertSame(fm, fm2);