org.springframework.beans.factory.support.DefaultListableBeanFactory#freezeConfiguration ( )源码实例Demo

/**
 * Creates a new {@link BeanFactory}, populates it with a {@link BeanDefinition} for
 * each of the given {@link Configuration} <var>configClasses</var>, and then
 * post-processes the factory using JavaConfig's {@link ConfigurationClassPostProcessor}.
 * When complete, the factory is ready to service requests for any {@link Bean} methods
 * declared by <var>configClasses</var>.
 */
private ListableBeanFactory initBeanFactory(Class<?>... configClasses) {
	DefaultListableBeanFactory factory = new DefaultListableBeanFactory();
	for (Class<?> configClass : configClasses) {
		String configBeanName = configClass.getName();
		factory.registerBeanDefinition(configBeanName, new RootBeanDefinition(configClass));
	}
	ConfigurationClassPostProcessor ccpp = new ConfigurationClassPostProcessor();
	ccpp.postProcessBeanDefinitionRegistry(factory);
	ccpp.postProcessBeanFactory(factory);
	RequiredAnnotationBeanPostProcessor rapp = new RequiredAnnotationBeanPostProcessor();
	rapp.setBeanFactory(factory);
	factory.addBeanPostProcessor(rapp);
	factory.freezeConfiguration();
	return factory;
}
 

@Test
public void testPrototypeCreationIsFastEnough() {
	Assume.group(TestGroup.PERFORMANCE);
	Assume.notLogging(factoryLog);
	DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
	RootBeanDefinition rbd = new RootBeanDefinition(TestBean.class);
	rbd.setScope(RootBeanDefinition.SCOPE_PROTOTYPE);
	lbf.registerBeanDefinition("test", rbd);
	lbf.freezeConfiguration();
	StopWatch sw = new StopWatch();
	sw.start("prototype");
	for (int i = 0; i < 100000; i++) {
		lbf.getBean("test");
	}
	sw.stop();
	// System.out.println(sw.getTotalTimeMillis());
	assertTrue("Prototype creation took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 3000);
}
 

@Test
public void testPrototypeCreationWithDependencyCheckIsFastEnough() {
	Assume.group(TestGroup.PERFORMANCE);
	Assume.notLogging(factoryLog);
	DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
	RootBeanDefinition rbd = new RootBeanDefinition(LifecycleBean.class);
	rbd.setScope(RootBeanDefinition.SCOPE_PROTOTYPE);
	rbd.setDependencyCheck(RootBeanDefinition.DEPENDENCY_CHECK_OBJECTS);
	lbf.registerBeanDefinition("test", rbd);
	lbf.addBeanPostProcessor(new LifecycleBean.PostProcessor());
	lbf.freezeConfiguration();
	StopWatch sw = new StopWatch();
	sw.start("prototype");
	for (int i = 0; i < 100000; i++) {
		lbf.getBean("test");
	}
	sw.stop();
	// System.out.println(sw.getTotalTimeMillis());
	assertTrue("Prototype creation took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 3000);
}
 

@Test
public void testPrototypeCreationWithResolvedConstructorArgumentsIsFastEnough() {
	Assume.group(TestGroup.PERFORMANCE);
	Assume.notLogging(factoryLog);
	DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
	RootBeanDefinition rbd = new RootBeanDefinition(TestBean.class);
	rbd.setScope(RootBeanDefinition.SCOPE_PROTOTYPE);
	rbd.getConstructorArgumentValues().addGenericArgumentValue(new RuntimeBeanReference("spouse"));
	lbf.registerBeanDefinition("test", rbd);
	lbf.registerBeanDefinition("spouse", new RootBeanDefinition(TestBean.class));
	lbf.freezeConfiguration();
	TestBean spouse = (TestBean) lbf.getBean("spouse");
	StopWatch sw = new StopWatch();
	sw.start("prototype");
	for (int i = 0; i < 100000; i++) {
		TestBean tb = (TestBean) lbf.getBean("test");
		assertSame(spouse, tb.getSpouse());
	}
	sw.stop();
	// System.out.println(sw.getTotalTimeMillis());
	assertTrue("Prototype creation took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 4000);
}
 

@Test
public void testPrototypeCreationWithPropertiesIsFastEnough() {
	Assume.group(TestGroup.PERFORMANCE);
	Assume.notLogging(factoryLog);
	DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
	RootBeanDefinition rbd = new RootBeanDefinition(TestBean.class);
	rbd.setScope(RootBeanDefinition.SCOPE_PROTOTYPE);
	rbd.getPropertyValues().add("name", "juergen");
	rbd.getPropertyValues().add("age", "99");
	lbf.registerBeanDefinition("test", rbd);
	lbf.freezeConfiguration();
	StopWatch sw = new StopWatch();
	sw.start("prototype");
	for (int i = 0; i < 100000; i++) {
		TestBean tb = (TestBean) lbf.getBean("test");
		assertEquals("juergen", tb.getName());
		assertEquals(99, tb.getAge());
	}
	sw.stop();
	// System.out.println(sw.getTotalTimeMillis());
	assertTrue("Prototype creation took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 4000);
}
 

@Test
public void testPrototypeCreationWithResolvedPropertiesIsFastEnough() {
	Assume.group(TestGroup.PERFORMANCE);
	Assume.notLogging(factoryLog);
	DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
	RootBeanDefinition rbd = new RootBeanDefinition(TestBean.class);
	rbd.setScope(RootBeanDefinition.SCOPE_PROTOTYPE);
	rbd.getPropertyValues().add("spouse", new RuntimeBeanReference("spouse"));
	lbf.registerBeanDefinition("test", rbd);
	lbf.registerBeanDefinition("spouse", new RootBeanDefinition(TestBean.class));
	lbf.freezeConfiguration();
	TestBean spouse = (TestBean) lbf.getBean("spouse");
	StopWatch sw = new StopWatch();
	sw.start("prototype");
	for (int i = 0; i < 100000; i++) {
		TestBean tb = (TestBean) lbf.getBean("test");
		assertSame(spouse, tb.getSpouse());
	}
	sw.stop();
	// System.out.println(sw.getTotalTimeMillis());
	assertTrue("Prototype creation took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 4000);
}
 

@Test
public void testSingletonLookupByNameIsFastEnough() {
	Assume.group(TestGroup.PERFORMANCE);
	Assume.notLogging(factoryLog);
	DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
	lbf.registerBeanDefinition("test", new RootBeanDefinition(TestBean.class));
	lbf.freezeConfiguration();
	StopWatch sw = new StopWatch();
	sw.start("singleton");
	for (int i = 0; i < 1000000; i++) {
		lbf.getBean("test");
	}
	sw.stop();
	// System.out.println(sw.getTotalTimeMillis());
	assertTrue("Singleton lookup took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 1000);
}
 

@Test
public void testSingletonLookupByTypeIsFastEnough() {
	Assume.group(TestGroup.PERFORMANCE);
	Assume.notLogging(factoryLog);
	DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
	lbf.registerBeanDefinition("test", new RootBeanDefinition(TestBean.class));
	lbf.freezeConfiguration();
	StopWatch sw = new StopWatch();
	sw.start("singleton");
	for (int i = 0; i < 1000000; i++) {
		lbf.getBean(TestBean.class);
	}
	sw.stop();
	// System.out.println(sw.getTotalTimeMillis());
	assertTrue("Singleton lookup took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 1000);
}
 

/**
 * Test that by-type bean lookup caching is working effectively by searching for a
 * bean of type B 10K times within a container having 1K additional beans of type A.
 * Prior to by-type caching, each bean lookup would traverse the entire container
 * (all 1001 beans), performing expensive assignability checks, etc. Now these
 * operations are necessary only once, providing a dramatic performance improvement.
 * On load-free modern hardware (e.g. an 8-core MPB), this method should complete well
 * under the 1000 ms timeout, usually ~= 300ms. With caching removed and on the same
 * hardware the method will take ~13000 ms. See SPR-6870.
 */
@Test(timeout = 1000)
public void testByTypeLookupIsFastEnough() {
	Assume.group(TestGroup.PERFORMANCE);
	DefaultListableBeanFactory bf = new DefaultListableBeanFactory();

	for (int i = 0; i < 1000; i++) {
		bf.registerBeanDefinition("a" + i, new RootBeanDefinition(A.class));
	}
	bf.registerBeanDefinition("b", new RootBeanDefinition(B.class));

	bf.freezeConfiguration();

	for (int i = 0; i < 10000; i++) {
		bf.getBean(B.class);
	}
}
 

@Test
public void testSingletonLookupByTypeIsFastEnough() {
	Assume.group(TestGroup.PERFORMANCE);
	Assume.notLogging(factoryLog);
	DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
	lbf.registerBeanDefinition("test", new RootBeanDefinition(TestBean.class));
	lbf.freezeConfiguration();
	StopWatch sw = new StopWatch();
	sw.start("singleton");
	for (int i = 0; i < 1000000; i++) {
		lbf.getBean(TestBean.class);
	}
	sw.stop();
	// System.out.println(sw.getTotalTimeMillis());
	assertTrue("Singleton lookup took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 1000);
}
 

/**
 * Test that by-type bean lookup caching is working effectively by searching for a
 * bean of type B 10K times within a container having 1K additional beans of type A.
 * Prior to by-type caching, each bean lookup would traverse the entire container
 * (all 1001 beans), performing expensive assignability checks, etc. Now these
 * operations are necessary only once, providing a dramatic performance improvement.
 * On load-free modern hardware (e.g. an 8-core MPB), this method should complete well
 * under the 1000 ms timeout, usually ~= 300ms. With caching removed and on the same
 * hardware the method will take ~13000 ms. See SPR-6870.
 */
@Test(timeout = 1000)
public void testByTypeLookupIsFastEnough() {
	Assume.group(TestGroup.PERFORMANCE);
	DefaultListableBeanFactory bf = new DefaultListableBeanFactory();

	for (int i = 0; i < 1000; i++) {
		bf.registerBeanDefinition("a" + i, new RootBeanDefinition(A.class));
	}
	bf.registerBeanDefinition("b", new RootBeanDefinition(B.class));

	bf.freezeConfiguration();

	for (int i = 0; i < 10000; i++) {
		bf.getBean(B.class);
	}
}
 

@Test
public void testPrototypeCreationWithDependencyCheckIsFastEnough() {
	Assume.group(TestGroup.PERFORMANCE);
	Assume.notLogging(factoryLog);
	DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
	RootBeanDefinition rbd = new RootBeanDefinition(LifecycleBean.class);
	rbd.setScope(RootBeanDefinition.SCOPE_PROTOTYPE);
	rbd.setDependencyCheck(RootBeanDefinition.DEPENDENCY_CHECK_OBJECTS);
	lbf.registerBeanDefinition("test", rbd);
	lbf.addBeanPostProcessor(new LifecycleBean.PostProcessor());
	lbf.freezeConfiguration();
	StopWatch sw = new StopWatch();
	sw.start("prototype");
	for (int i = 0; i < 100000; i++) {
		lbf.getBean("test");
	}
	sw.stop();
	// System.out.println(sw.getTotalTimeMillis());
	assertTrue("Prototype creation took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 3000);
}
 

@Test
@Ignore  // TODO re-enable when ConstructorResolver TODO sorted out
public void testPrototypeCreationWithConstructorArgumentsIsFastEnough() {
	Assume.group(TestGroup.PERFORMANCE);
	Assume.notLogging(factoryLog);
	DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
	RootBeanDefinition rbd = new RootBeanDefinition(TestBean.class);
	rbd.setScope(RootBeanDefinition.SCOPE_PROTOTYPE);
	rbd.getConstructorArgumentValues().addGenericArgumentValue("juergen");
	rbd.getConstructorArgumentValues().addGenericArgumentValue("99");
	lbf.registerBeanDefinition("test", rbd);
	lbf.freezeConfiguration();
	StopWatch sw = new StopWatch();
	sw.start("prototype");
	for (int i = 0; i < 100000; i++) {
		TestBean tb = (TestBean) lbf.getBean("test");
		assertEquals("juergen", tb.getName());
		assertEquals(99, tb.getAge());
	}
	sw.stop();
	// System.out.println(sw.getTotalTimeMillis());
	assertTrue("Prototype creation took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 3000);
}
 

@Test
public void testPrototypeCreationWithResolvedConstructorArgumentsIsFastEnough() {
	Assume.group(TestGroup.PERFORMANCE);
	Assume.notLogging(factoryLog);
	DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
	RootBeanDefinition rbd = new RootBeanDefinition(TestBean.class);
	rbd.setScope(RootBeanDefinition.SCOPE_PROTOTYPE);
	rbd.getConstructorArgumentValues().addGenericArgumentValue(new RuntimeBeanReference("spouse"));
	lbf.registerBeanDefinition("test", rbd);
	lbf.registerBeanDefinition("spouse", new RootBeanDefinition(TestBean.class));
	lbf.freezeConfiguration();
	TestBean spouse = (TestBean) lbf.getBean("spouse");
	StopWatch sw = new StopWatch();
	sw.start("prototype");
	for (int i = 0; i < 100000; i++) {
		TestBean tb = (TestBean) lbf.getBean("test");
		assertSame(spouse, tb.getSpouse());
	}
	sw.stop();
	// System.out.println(sw.getTotalTimeMillis());
	assertTrue("Prototype creation took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 4000);
}
 

@Test
public void testPrototypeCreationWithPropertiesIsFastEnough() {
	Assume.group(TestGroup.PERFORMANCE);
	Assume.notLogging(factoryLog);
	DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
	RootBeanDefinition rbd = new RootBeanDefinition(TestBean.class);
	rbd.setScope(RootBeanDefinition.SCOPE_PROTOTYPE);
	rbd.getPropertyValues().add("name", "juergen");
	rbd.getPropertyValues().add("age", "99");
	lbf.registerBeanDefinition("test", rbd);
	lbf.freezeConfiguration();
	StopWatch sw = new StopWatch();
	sw.start("prototype");
	for (int i = 0; i < 100000; i++) {
		TestBean tb = (TestBean) lbf.getBean("test");
		assertEquals("juergen", tb.getName());
		assertEquals(99, tb.getAge());
	}
	sw.stop();
	// System.out.println(sw.getTotalTimeMillis());
	assertTrue("Prototype creation took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 4000);
}
 

/**
 * Test that by-type bean lookup caching is working effectively by searching for a
 * bean of type B 10K times within a container having 1K additional beans of type A.
 * Prior to by-type caching, each bean lookup would traverse the entire container
 * (all 1001 beans), performing expensive assignability checks, etc. Now these
 * operations are necessary only once, providing a dramatic performance improvement.
 * On load-free modern hardware (e.g. an 8-core MPB), this method should complete well
 * under the 1000 ms timeout, usually ~= 300ms. With caching removed and on the same
 * hardware the method will take ~13000 ms. See SPR-6870.
 */
@Test(timeout = 1000)
public void testByTypeLookupIsFastEnough() {
	Assume.group(TestGroup.PERFORMANCE);
	DefaultListableBeanFactory bf = new DefaultListableBeanFactory();

	for (int i = 0; i < 1000; i++) {
		bf.registerBeanDefinition("a" + i, new RootBeanDefinition(A.class));
	}
	bf.registerBeanDefinition("b", new RootBeanDefinition(B.class));

	bf.freezeConfiguration();

	for (int i = 0; i < 10000; i++) {
		bf.getBean(B.class);
	}
}
 

@Test
public void testSingletonLookupByNameIsFastEnough() {
	Assume.group(TestGroup.PERFORMANCE);
	Assume.notLogging(factoryLog);
	DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
	lbf.registerBeanDefinition("test", new RootBeanDefinition(TestBean.class));
	lbf.freezeConfiguration();
	StopWatch sw = new StopWatch();
	sw.start("singleton");
	for (int i = 0; i < 1000000; i++) {
		lbf.getBean("test");
	}
	sw.stop();
	// System.out.println(sw.getTotalTimeMillis());
	assertTrue("Singleton lookup took too long: " + sw.getTotalTimeMillis(), sw.getTotalTimeMillis() < 1000);
}
 

@Test
public void testGetTypeWorksAfterParentChildMerging() {
	RootBeanDefinition parentDefinition = new RootBeanDefinition(TestBean.class);
	ChildBeanDefinition childDefinition = new ChildBeanDefinition("parent", DerivedTestBean.class, null, null);

	DefaultListableBeanFactory factory = new DefaultListableBeanFactory();
	factory.registerBeanDefinition("parent", parentDefinition);
	factory.registerBeanDefinition("child", childDefinition);
	factory.freezeConfiguration();

	assertEquals(TestBean.class, factory.getType("parent"));
	assertEquals(DerivedTestBean.class, factory.getType("child"));
}
 

@Test
public void testGetTypeWorksAfterParentChildMerging() {
	RootBeanDefinition parentDefinition = new RootBeanDefinition(TestBean.class);
	ChildBeanDefinition childDefinition = new ChildBeanDefinition("parent", DerivedTestBean.class, null, null);

	DefaultListableBeanFactory factory = new DefaultListableBeanFactory();
	factory.registerBeanDefinition("parent", parentDefinition);
	factory.registerBeanDefinition("child", childDefinition);
	factory.freezeConfiguration();

	assertEquals(TestBean.class, factory.getType("parent"));
	assertEquals(DerivedTestBean.class, factory.getType("child"));
}
 

/**
 * Creates a new {@link BeanFactory}, populates it with a {@link BeanDefinition}
 * for each of the given {@link Configuration} {@code configClasses}, and then
 * post-processes the factory using JavaConfig's {@link ConfigurationClassPostProcessor}.
 * When complete, the factory is ready to service requests for any {@link Bean} methods
 * declared by {@code configClasses}.
 */
private DefaultListableBeanFactory initBeanFactory(Class<?>... configClasses) {
	DefaultListableBeanFactory factory = new DefaultListableBeanFactory();
	for (Class<?> configClass : configClasses) {
		String configBeanName = configClass.getName();
		factory.registerBeanDefinition(configBeanName, new RootBeanDefinition(configClass));
	}
	ConfigurationClassPostProcessor ccpp = new ConfigurationClassPostProcessor();
	ccpp.postProcessBeanDefinitionRegistry(factory);
	ccpp.postProcessBeanFactory(factory);
	factory.freezeConfiguration();
	return factory;
}