Java Code Examples for org.springframework.context.annotation.AnnotatedBeanDefinitionReader#register()

@Test
public void securityManagerDisallowsAccessToSystemEnvironmentButAllowsAccessToIndividualKeys() {
	SecurityManager securityManager = new SecurityManager() {
		@Override
		public void checkPermission(Permission perm) {
			// Disallowing access to System#getenv means that our
			// ReadOnlySystemAttributesMap will come into play.
			if ("getenv.*".equals(perm.getName())) {
				throw new AccessControlException("Accessing the system environment is disallowed");
			}
		}
	};
	System.setSecurityManager(securityManager);

	DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
	AnnotatedBeanDefinitionReader reader = new AnnotatedBeanDefinitionReader(bf);
	reader.register(C1.class);
	assertThat(bf.containsBean("c1"), is(true));
}
 

public static void main(String[] args) {
    DefaultListableBeanFactory beanFactory = new DefaultListableBeanFactory();
    // 基于 Java 注解的 AnnotatedBeanDefinitionReader 的实现
    AnnotatedBeanDefinitionReader beanDefinitionReader = new AnnotatedBeanDefinitionReader(beanFactory);
    int beanDefinitionCountBefore = beanFactory.getBeanDefinitionCount();
    // 注册当前类（非 @Component class）
    beanDefinitionReader.register(AnnotatedBeanDefinitionParsingDemo.class);
    int beanDefinitionCountAfter = beanFactory.getBeanDefinitionCount();
    int beanDefinitionCount = beanDefinitionCountAfter - beanDefinitionCountBefore;
    System.out.println("已加载 BeanDefinition 数量：" + beanDefinitionCount);
    // 普通的 Class 作为 Component 注册到 Spring IoC 容器后，通常 Bean 名称为 annotatedBeanDefinitionParsingDemo
    // Bean 名称生成来自于 BeanNameGenerator，注解实现 AnnotationBeanNameGenerator
    AnnotatedBeanDefinitionParsingDemo demo = beanFactory.getBean("annotatedBeanDefinitionParsingDemo",
            AnnotatedBeanDefinitionParsingDemo.class);
    System.out.println(demo);
}
 

@Test
public void securityManagerDisallowsAccessToSystemEnvironmentButAllowsAccessToIndividualKeys() {
	SecurityManager securityManager = new SecurityManager() {
		@Override
		public void checkPermission(Permission perm) {
			// Disallowing access to System#getenv means that our
			// ReadOnlySystemAttributesMap will come into play.
			if ("getenv.*".equals(perm.getName())) {
				throw new AccessControlException("Accessing the system environment is disallowed");
			}
		}
	};
	System.setSecurityManager(securityManager);

	DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
	AnnotatedBeanDefinitionReader reader = new AnnotatedBeanDefinitionReader(bf);
	reader.register(C1.class);
	assertThat(bf.containsBean("c1"), is(true));
}
 

@Test
public void securityManagerDisallowsAccessToSystemEnvironmentButAllowsAccessToIndividualKeys() {
	SecurityManager securityManager = new SecurityManager() {
		@Override
		public void checkPermission(Permission perm) {
			// Disallowing access to System#getenv means that our
			// ReadOnlySystemAttributesMap will come into play.
			if ("getenv.*".equals(perm.getName())) {
				throw new AccessControlException("Accessing the system environment is disallowed");
			}
		}
	};
	System.setSecurityManager(securityManager);

	DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
	AnnotatedBeanDefinitionReader reader = new AnnotatedBeanDefinitionReader(bf);
	reader.register(C1.class);
	assertThat(bf.containsBean("c1"), is(true));
}
 

private void loadContexts(Element element, BeanDefinitionRegistry beanDefinitionRegistry) {
    String externalDatabase = element.getAttribute("externalDatabase");
    if (StringUtils.isBlank(externalDatabase) || externalDatabase.equals(Boolean.FALSE.toString())) {
        AnnotatedBeanDefinitionReader definitionReader = new AnnotatedBeanDefinitionReader(beanDefinitionRegistry);
        definitionReader.register(ScoreDefaultDatasourceContext.class);
        definitionReader.register(ScoreDatabaseContext.class);
    }

    String repositoriesContextPath = "META-INF/spring/score/context/scoreRepositoryContext.xml";

    String ignoreEngineJobs = element.getAttribute("ignoreEngineJobs");
    if(StringUtils.isNotBlank(ignoreEngineJobs) && ignoreEngineJobs.equals(Boolean.TRUE.toString())){
        new XmlBeanDefinitionReader(beanDefinitionRegistry).loadBeanDefinitions(repositoriesContextPath);
    }
    else{
        new XmlBeanDefinitionReader(beanDefinitionRegistry).loadBeanDefinitions(repositoriesContextPath,ENGINE_JOBS_CONTEXT_LOCATION);
    }
}
 

@Test
public void securityManagerDisallowsAccessToSystemEnvironmentAndDisallowsAccessToIndividualKey() {
	SecurityManager securityManager = new SecurityManager() {
		@Override
		public void checkPermission(Permission perm) {
			// Disallowing access to System#getenv means that our
			// ReadOnlySystemAttributesMap will come into play.
			if ("getenv.*".equals(perm.getName())) {
				throw new AccessControlException("Accessing the system environment is disallowed");
			}
			// Disallowing access to the spring.profiles.active property means that
			// the BeanDefinitionReader won't be able to determine which profiles are
			// active. We should see an INFO-level message in the console about this
			// and as a result, any components marked with a non-default profile will
			// be ignored.
			if (("getenv." + AbstractEnvironment.ACTIVE_PROFILES_PROPERTY_NAME).equals(perm.getName())) {
				throw new AccessControlException(
						format("Accessing system environment variable [%s] is disallowed",
								AbstractEnvironment.ACTIVE_PROFILES_PROPERTY_NAME));
			}
		}
	};
	System.setSecurityManager(securityManager);

	DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
	AnnotatedBeanDefinitionReader reader = new AnnotatedBeanDefinitionReader(bf);
	reader.register(C1.class);
	assertThat(bf.containsBean("c1"), is(false));
}
 

@Test
public void securityManagerDisallowsAccessToSystemEnvironmentAndDisallowsAccessToIndividualKey() {
	SecurityManager securityManager = new SecurityManager() {
		@Override
		public void checkPermission(Permission perm) {
			// Disallowing access to System#getenv means that our
			// ReadOnlySystemAttributesMap will come into play.
			if ("getenv.*".equals(perm.getName())) {
				throw new AccessControlException("Accessing the system environment is disallowed");
			}
			// Disallowing access to the spring.profiles.active property means that
			// the BeanDefinitionReader won't be able to determine which profiles are
			// active. We should see an INFO-level message in the console about this
			// and as a result, any components marked with a non-default profile will
			// be ignored.
			if (("getenv." + AbstractEnvironment.ACTIVE_PROFILES_PROPERTY_NAME).equals(perm.getName())) {
				throw new AccessControlException(
						format("Accessing system environment variable [%s] is disallowed",
								AbstractEnvironment.ACTIVE_PROFILES_PROPERTY_NAME));
			}
		}
	};
	System.setSecurityManager(securityManager);

	DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
	AnnotatedBeanDefinitionReader reader = new AnnotatedBeanDefinitionReader(bf);
	reader.register(C1.class);
	assertThat(bf.containsBean("c1"), is(false));
}
 

/**
 * Register Beans if not present in {@link BeanDefinitionRegistry registry}
 *
 * @param registry         {@link BeanDefinitionRegistry}
 * @param annotatedClasses {@link Annotation annotation} class
 */
public static void registerBeans(BeanDefinitionRegistry registry, Class<?>... annotatedClasses) {

    if (ObjectUtils.isEmpty(annotatedClasses)) {
        return;
    }

    Set<Class<?>> classesToRegister = new LinkedHashSet<Class<?>>(asList(annotatedClasses));

    // Remove all annotated-classes that have been registered
    Iterator<Class<?>> iterator = classesToRegister.iterator();

    while (iterator.hasNext()) {
        Class<?> annotatedClass = iterator.next();
        if (isPresentBean(registry, annotatedClass)) {
            iterator.remove();
        }
    }

    AnnotatedBeanDefinitionReader reader = new AnnotatedBeanDefinitionReader(registry);

    if (logger.isDebugEnabled()) {
        logger.debug(registry.getClass().getSimpleName() + " will register annotated classes : " + asList(annotatedClasses) + " .");
    }

    reader.register(classesToRegister.toArray(EMPTY_CLASS_ARRAY));

}
 

private AnnotatedBeanDefinitionReader configure(AnnotatedBeanDefinitionReader reader) {

		Set<Class<?>> componentClasses = this.componentClasses;

		if (!componentClasses.isEmpty()) {
			getLogger().debug("Registering component classes: {}", componentClasses);
			reader.register(ClassUtils.toClassArray(componentClasses));
		}

		return reader;
	}
 

@Test
public void securityManagerDisallowsAccessToSystemEnvironmentAndDisallowsAccessToIndividualKey() {
	SecurityManager securityManager = new SecurityManager() {
		@Override
		public void checkPermission(Permission perm) {
			// Disallowing access to System#getenv means that our
			// ReadOnlySystemAttributesMap will come into play.
			if ("getenv.*".equals(perm.getName())) {
				throw new AccessControlException("Accessing the system environment is disallowed");
			}
			// Disallowing access to the spring.profiles.active property means that
			// the BeanDefinitionReader won't be able to determine which profiles are
			// active. We should see an INFO-level message in the console about this
			// and as a result, any components marked with a non-default profile will
			// be ignored.
			if (("getenv." + AbstractEnvironment.ACTIVE_PROFILES_PROPERTY_NAME).equals(perm.getName())) {
				throw new AccessControlException(
						format("Accessing system environment variable [%s] is disallowed",
								AbstractEnvironment.ACTIVE_PROFILES_PROPERTY_NAME));
			}
		}
	};
	System.setSecurityManager(securityManager);

	DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
	AnnotatedBeanDefinitionReader reader = new AnnotatedBeanDefinitionReader(bf);
	reader.register(C1.class);
	assertThat(bf.containsBean("c1"), is(false));
}
 

/**
 * Register a {@link org.springframework.beans.factory.config.BeanDefinition} for
 * any classes specified by {@link #register(Class...)} and scan any packages
 * specified by {@link #scan(String...)}.
 * <p>For any values specified by {@link #setConfigLocation(String)} or
 * {@link #setConfigLocations(String[])}, attempt first to load each location as a
 * class, registering a {@code BeanDefinition} if class loading is successful,
 * and if class loading fails (i.e. a {@code ClassNotFoundException} is raised),
 * assume the value is a package and attempt to scan it for annotated classes.
 * <p>Enables the default set of annotation configuration post processors, such that
 * {@code @Autowired}, {@code @Required}, and associated annotations can be used.
 * <p>Configuration class bean definitions are registered with generated bean
 * definition names unless the {@code value} attribute is provided to the stereotype
 * annotation.
 * @param beanFactory the bean factory to load bean definitions into
 * @see #register(Class...)
 * @see #scan(String...)
 * @see #setConfigLocation(String)
 * @see #setConfigLocations(String[])
 * @see AnnotatedBeanDefinitionReader
 * @see ClassPathBeanDefinitionScanner
 */
@Override
protected void loadBeanDefinitions(DefaultListableBeanFactory beanFactory) {
	AnnotatedBeanDefinitionReader reader = getAnnotatedBeanDefinitionReader(beanFactory);
	ClassPathBeanDefinitionScanner scanner = getClassPathBeanDefinitionScanner(beanFactory);

	BeanNameGenerator beanNameGenerator = getBeanNameGenerator();
	if (beanNameGenerator != null) {
		reader.setBeanNameGenerator(beanNameGenerator);
		scanner.setBeanNameGenerator(beanNameGenerator);
		beanFactory.registerSingleton(AnnotationConfigUtils.CONFIGURATION_BEAN_NAME_GENERATOR, beanNameGenerator);
	}

	ScopeMetadataResolver scopeMetadataResolver = getScopeMetadataResolver();
	if (scopeMetadataResolver != null) {
		reader.setScopeMetadataResolver(scopeMetadataResolver);
		scanner.setScopeMetadataResolver(scopeMetadataResolver);
	}

	if (!this.annotatedClasses.isEmpty()) {
		if (logger.isDebugEnabled()) {
			logger.debug("Registering annotated classes: [" +
					StringUtils.collectionToCommaDelimitedString(this.annotatedClasses) + "]");
		}
		reader.register(ClassUtils.toClassArray(this.annotatedClasses));
	}

	if (!this.basePackages.isEmpty()) {
		if (logger.isDebugEnabled()) {
			logger.debug("Scanning base packages: [" +
					StringUtils.collectionToCommaDelimitedString(this.basePackages) + "]");
		}
		scanner.scan(StringUtils.toStringArray(this.basePackages));
	}

	String[] configLocations = getConfigLocations();
	if (configLocations != null) {
		for (String configLocation : configLocations) {
			try {
				Class<?> clazz = ClassUtils.forName(configLocation, getClassLoader());
				if (logger.isTraceEnabled()) {
					logger.trace("Registering [" + configLocation + "]");
				}
				reader.register(clazz);
			}
			catch (ClassNotFoundException ex) {
				if (logger.isTraceEnabled()) {
					logger.trace("Could not load class for config location [" + configLocation +
							"] - trying package scan. " + ex);
				}
				int count = scanner.scan(configLocation);
				if (count == 0 && logger.isDebugEnabled()) {
					logger.debug("No annotated classes found for specified class/package [" + configLocation + "]");
				}
			}
		}
	}
}
 

/**
 * Register a {@link org.springframework.beans.factory.config.BeanDefinition} for
 * any classes specified by {@link #register(Class...)} and scan any packages
 * specified by {@link #scan(String...)}.
 * <p>For any values specified by {@link #setConfigLocation(String)} or
 * {@link #setConfigLocations(String[])}, attempt first to load each location as a
 * class, registering a {@code BeanDefinition} if class loading is successful,
 * and if class loading fails (i.e. a {@code ClassNotFoundException} is raised),
 * assume the value is a package and attempt to scan it for annotated classes.
 * <p>Enables the default set of annotation configuration post processors, such that
 * {@code @Autowired}, {@code @Required}, and associated annotations can be used.
 * <p>Configuration class bean definitions are registered with generated bean
 * definition names unless the {@code value} attribute is provided to the stereotype
 * annotation.
 * @param beanFactory the bean factory to load bean definitions into
 * @see #register(Class...)
 * @see #scan(String...)
 * @see #setConfigLocation(String)
 * @see #setConfigLocations(String[])
 * @see AnnotatedBeanDefinitionReader
 * @see ClassPathBeanDefinitionScanner
 */
@Override
protected void loadBeanDefinitions(DefaultListableBeanFactory beanFactory) {
	AnnotatedBeanDefinitionReader reader = getAnnotatedBeanDefinitionReader(beanFactory);
	ClassPathBeanDefinitionScanner scanner = getClassPathBeanDefinitionScanner(beanFactory);

	BeanNameGenerator beanNameGenerator = getBeanNameGenerator();
	if (beanNameGenerator != null) {
		reader.setBeanNameGenerator(beanNameGenerator);
		scanner.setBeanNameGenerator(beanNameGenerator);
		beanFactory.registerSingleton(AnnotationConfigUtils.CONFIGURATION_BEAN_NAME_GENERATOR, beanNameGenerator);
	}

	ScopeMetadataResolver scopeMetadataResolver = getScopeMetadataResolver();
	if (scopeMetadataResolver != null) {
		reader.setScopeMetadataResolver(scopeMetadataResolver);
		scanner.setScopeMetadataResolver(scopeMetadataResolver);
	}

	if (!this.annotatedClasses.isEmpty()) {
		if (logger.isDebugEnabled()) {
			logger.debug("Registering annotated classes: [" +
					StringUtils.collectionToCommaDelimitedString(this.annotatedClasses) + "]");
		}
		reader.register(ClassUtils.toClassArray(this.annotatedClasses));
	}

	if (!this.basePackages.isEmpty()) {
		if (logger.isDebugEnabled()) {
			logger.debug("Scanning base packages: [" +
					StringUtils.collectionToCommaDelimitedString(this.basePackages) + "]");
		}
		scanner.scan(StringUtils.toStringArray(this.basePackages));
	}

	String[] configLocations = getConfigLocations();
	if (configLocations != null) {
		for (String configLocation : configLocations) {
			try {
				Class<?> clazz = ClassUtils.forName(configLocation, getClassLoader());
				if (logger.isTraceEnabled()) {
					logger.trace("Registering [" + configLocation + "]");
				}
				reader.register(clazz);
			}
			catch (ClassNotFoundException ex) {
				if (logger.isTraceEnabled()) {
					logger.trace("Could not load class for config location [" + configLocation +
							"] - trying package scan. " + ex);
				}
				int count = scanner.scan(configLocation);
				if (count == 0 && logger.isDebugEnabled()) {
					logger.debug("No annotated classes found for specified class/package [" + configLocation + "]");
				}
			}
		}
	}
}
 

/**
 * Register a {@link org.springframework.beans.factory.config.BeanDefinition} for
 * any classes specified by {@link #register(Class...)} and scan any packages
 * specified by {@link #scan(String...)}.
 * <p>For any values specified by {@link #setConfigLocation(String)} or
 * {@link #setConfigLocations(String[])}, attempt first to load each location as a
 * class, registering a {@code BeanDefinition} if class loading is successful,
 * and if class loading fails (i.e. a {@code ClassNotFoundException} is raised),
 * assume the value is a package and attempt to scan it for annotated classes.
 * <p>Enables the default set of annotation configuration post processors, such that
 * {@code @Autowired}, {@code @Required}, and associated annotations can be used.
 * <p>Configuration class bean definitions are registered with generated bean
 * definition names unless the {@code value} attribute is provided to the stereotype
 * annotation.
 * @param beanFactory the bean factory to load bean definitions into
 * @see #register(Class...)
 * @see #scan(String...)
 * @see #setConfigLocation(String)
 * @see #setConfigLocations(String[])
 * @see AnnotatedBeanDefinitionReader
 * @see ClassPathBeanDefinitionScanner
 */
@Override
protected void loadBeanDefinitions(DefaultListableBeanFactory beanFactory) {
	AnnotatedBeanDefinitionReader reader = getAnnotatedBeanDefinitionReader(beanFactory);
	ClassPathBeanDefinitionScanner scanner = getClassPathBeanDefinitionScanner(beanFactory);

	BeanNameGenerator beanNameGenerator = getBeanNameGenerator();
	if (beanNameGenerator != null) {
		reader.setBeanNameGenerator(beanNameGenerator);
		scanner.setBeanNameGenerator(beanNameGenerator);
		beanFactory.registerSingleton(AnnotationConfigUtils.CONFIGURATION_BEAN_NAME_GENERATOR, beanNameGenerator);
	}

	ScopeMetadataResolver scopeMetadataResolver = getScopeMetadataResolver();
	if (scopeMetadataResolver != null) {
		reader.setScopeMetadataResolver(scopeMetadataResolver);
		scanner.setScopeMetadataResolver(scopeMetadataResolver);
	}

	if (!this.annotatedClasses.isEmpty()) {
		if (logger.isInfoEnabled()) {
			logger.info("Registering annotated classes: [" +
					StringUtils.collectionToCommaDelimitedString(this.annotatedClasses) + "]");
		}
		reader.register(this.annotatedClasses.toArray(new Class<?>[this.annotatedClasses.size()]));
	}

	if (!this.basePackages.isEmpty()) {
		if (logger.isInfoEnabled()) {
			logger.info("Scanning base packages: [" +
					StringUtils.collectionToCommaDelimitedString(this.basePackages) + "]");
		}
		scanner.scan(this.basePackages.toArray(new String[this.basePackages.size()]));
	}

	String[] configLocations = getConfigLocations();
	if (configLocations != null) {
		for (String configLocation : configLocations) {
			try {
				Class<?> clazz = getClassLoader().loadClass(configLocation);
				if (logger.isInfoEnabled()) {
					logger.info("Successfully resolved class for [" + configLocation + "]");
				}
				reader.register(clazz);
			}
			catch (ClassNotFoundException ex) {
				if (logger.isDebugEnabled()) {
					logger.debug("Could not load class for config location [" + configLocation +
							"] - trying package scan. " + ex);
				}
				int count = scanner.scan(configLocation);
				if (logger.isInfoEnabled()) {
					if (count == 0) {
						logger.info("No annotated classes found for specified class/package [" + configLocation + "]");
					}
					else {
						logger.info("Found " + count + " annotated classes in package [" + configLocation + "]");
					}
				}
			}
		}
	}
}
 

/**
 * Register a {@link org.springframework.beans.factory.config.BeanDefinition} for
 * any classes specified by {@link #register(Class...)} and scan any packages
 * specified by {@link #scan(String...)}.
 * <p>For any values specified by {@link #setConfigLocation(String)} or
 * {@link #setConfigLocations(String[])}, attempt first to load each location as a
 * class, registering a {@code BeanDefinition} if class loading is successful,
 * and if class loading fails (i.e. a {@code ClassNotFoundException} is raised),
 * assume the value is a package and attempt to scan it for annotated classes.
 * <p>Enables the default set of annotation configuration post processors, such that
 * {@code @Autowired}, {@code @Required}, and associated annotations can be used.
 * <p>Configuration class bean definitions are registered with generated bean
 * definition names unless the {@code value} attribute is provided to the stereotype
 * annotation.
 * @param beanFactory the bean factory to load bean definitions into
 * @see #register(Class...)
 * @see #scan(String...)
 * @see #setConfigLocation(String)
 * @see #setConfigLocations(String[])
 * @see AnnotatedBeanDefinitionReader
 * @see ClassPathBeanDefinitionScanner
 */
@Override
protected void loadBeanDefinitions(DefaultListableBeanFactory beanFactory) {
	AnnotatedBeanDefinitionReader reader = getAnnotatedBeanDefinitionReader(beanFactory);
	ClassPathBeanDefinitionScanner scanner = getClassPathBeanDefinitionScanner(beanFactory);

	BeanNameGenerator beanNameGenerator = getBeanNameGenerator();
	if (beanNameGenerator != null) {
		reader.setBeanNameGenerator(beanNameGenerator);
		scanner.setBeanNameGenerator(beanNameGenerator);
		beanFactory.registerSingleton(AnnotationConfigUtils.CONFIGURATION_BEAN_NAME_GENERATOR, beanNameGenerator);
	}

	ScopeMetadataResolver scopeMetadataResolver = getScopeMetadataResolver();
	if (scopeMetadataResolver != null) {
		reader.setScopeMetadataResolver(scopeMetadataResolver);
		scanner.setScopeMetadataResolver(scopeMetadataResolver);
	}

	if (!this.annotatedClasses.isEmpty()) {
		if (logger.isInfoEnabled()) {
			logger.info("Registering annotated classes: [" +
					StringUtils.collectionToCommaDelimitedString(this.annotatedClasses) + "]");
		}
		reader.register(this.annotatedClasses.toArray(new Class<?>[this.annotatedClasses.size()]));
	}

	if (!this.basePackages.isEmpty()) {
		if (logger.isInfoEnabled()) {
			logger.info("Scanning base packages: [" +
					StringUtils.collectionToCommaDelimitedString(this.basePackages) + "]");
		}
		scanner.scan(this.basePackages.toArray(new String[this.basePackages.size()]));
	}

	String[] configLocations = getConfigLocations();
	if (configLocations != null) {
		for (String configLocation : configLocations) {
			try {
				Class<?> clazz = getClassLoader().loadClass(configLocation);
				if (logger.isInfoEnabled()) {
					logger.info("Successfully resolved class for [" + configLocation + "]");
				}
				reader.register(clazz);
			}
			catch (ClassNotFoundException ex) {
				if (logger.isDebugEnabled()) {
					logger.debug("Could not load class for config location [" + configLocation +
							"] - trying package scan. " + ex);
				}
				int count = scanner.scan(configLocation);
				if (logger.isInfoEnabled()) {
					if (count == 0) {
						logger.info("No annotated classes found for specified class/package [" + configLocation + "]");
					}
					else {
						logger.info("Found " + count + " annotated classes in package [" + configLocation + "]");
					}
				}
			}
		}
	}
}
 

/**
 * Register a {@link org.springframework.beans.factory.config.BeanDefinition} for
 * any classes specified by {@link #register(Class...)} and scan any packages
 * specified by {@link #scan(String...)}.
 * <p>For any values specified by {@link #setConfigLocation(String)} or
 * {@link #setConfigLocations(String[])}, attempt first to load each location as a
 * class, registering a {@code BeanDefinition} if class loading is successful,
 * and if class loading fails (i.e. a {@code ClassNotFoundException} is raised),
 * assume the value is a package and attempt to scan it for annotated classes.
 * <p>Enables the default set of annotation configuration post processors, such that
 * {@code @Autowired}, {@code @Required}, and associated annotations can be used.
 * <p>Configuration class bean definitions are registered with generated bean
 * definition names unless the {@code value} attribute is provided to the stereotype
 * annotation.
 * @see #register(Class...)
 * @see #scan(String...)
 * @see #setConfigLocation(String)
 * @see #setConfigLocations(String[])
 * @see AnnotatedBeanDefinitionReader
 * @see ClassPathBeanDefinitionScanner
 */
@Override
protected void loadBeanDefinitions(DefaultListableBeanFactory beanFactory) {
    AnnotatedBeanDefinitionReader reader = new AnnotatedBeanDefinitionReader(beanFactory);
    reader.setEnvironment(this.getEnvironment());

    ClassPathBeanDefinitionScanner scanner = new ClassPathBeanDefinitionScanner(beanFactory);
    scanner.setEnvironment(this.getEnvironment());

    BeanNameGenerator beanNameGenerator = getBeanNameGenerator();
    ScopeMetadataResolver scopeMetadataResolver = getScopeMetadataResolver();
    if (beanNameGenerator != null) {
        reader.setBeanNameGenerator(beanNameGenerator);
        scanner.setBeanNameGenerator(beanNameGenerator);
        beanFactory.registerSingleton(
                AnnotationConfigUtils.CONFIGURATION_BEAN_NAME_GENERATOR, beanNameGenerator);
    }
    if (scopeMetadataResolver != null) {
        reader.setScopeMetadataResolver(scopeMetadataResolver);
        scanner.setScopeMetadataResolver(scopeMetadataResolver);
    }

    if (!this.annotatedClasses.isEmpty()) {
        if (logger.isInfoEnabled()) {
            logger.info("Registering annotated classes: [" +
                    StringUtils.collectionToCommaDelimitedString(this.annotatedClasses) + "]");
        }
        reader.register(this.annotatedClasses.toArray(new Class<?>[0]));
    }

    if (!this.basePackages.isEmpty()) {
        if (logger.isInfoEnabled()) {
            logger.info("Scanning base packages: [" +
                    StringUtils.collectionToCommaDelimitedString(this.basePackages) + "]");
        }
        for (TypeFilter typeFilter : includeFilters) {
            scanner.addIncludeFilter(typeFilter);
        }
        scanner.scan(this.basePackages.toArray(new String[0]));
    }

    String[] configLocations = getConfigLocations();
    if (configLocations != null) {
        for (String configLocation : configLocations) {
            try {
                Class<?> clazz = getClassLoader().loadClass(configLocation);
                if (logger.isInfoEnabled()) {
                    logger.info("Successfully resolved class for [" + configLocation + "]");
                }
                reader.register(clazz);
            }
            catch (ClassNotFoundException ex) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Could not load class for config location [" + configLocation +
                            "] - trying package scan. " + ex);
                }
                int count = scanner.scan(configLocation);
                if (logger.isInfoEnabled()) {
                    if (count == 0) {
                        logger.info("No annotated classes found for specified class/package [" + configLocation + "]");
                    }
                    else {
                        logger.info("Found " + count + " annotated classes in package [" + configLocation + "]");
                    }
                }
            }
        }
    }
}