import org.springframework.beans.factory.annotation.InjectionMetadata; //导入依赖的package包/类
private InjectionMetadata findAutowiringMetadata(String beanName, Class<?> clazz, PropertyValues pvs) {
    // Fall back to class name as cache key, for backwards compatibility with custom callers.
    String cacheKey = (StringUtils.hasLength(beanName) ? beanName : clazz.getName());
    // Quick check on the concurrent map first, with minimal locking.
    InjectionMetadata metadata = this.injectionMetadataCache.get(cacheKey);
    if (InjectionMetadata.needsRefresh(metadata, clazz)) {
        synchronized (this.injectionMetadataCache) {
            metadata = this.injectionMetadataCache.get(cacheKey);
            if (InjectionMetadata.needsRefresh(metadata, clazz)) {
                if (metadata != null) {
                    clear(metadata, pvs);
                }
                try {
                    metadata = buildAutowiringMetadata(clazz);
                    this.injectionMetadataCache.put(cacheKey, metadata);
                } catch (NoClassDefFoundError err) {
                    throw new IllegalStateException("Failed to introspect bean class [" + clazz.getName() +
                            "] for autowiring metadata: could not find class that it depends on", err);
                }
            }
        }
    }
    return metadata;
}
 

import org.springframework.beans.factory.annotation.InjectionMetadata; //导入依赖的package包/类
private InjectionMetadata findReferenceMetadata(String beanName, Class<?> clazz, PropertyValues pvs) {
    // Fall back to class name as cache key, for backwards compatibility with custom callers.
    String cacheKey = (StringUtils.hasLength(beanName) ? beanName : clazz.getName());
    // Quick check on the concurrent map first, with minimal locking.
    InjectionMetadata metadata = this.injectionMetadataCache.get(cacheKey);
    if (InjectionMetadata.needsRefresh(metadata, clazz)) {
        synchronized (this.injectionMetadataCache) {
            metadata = this.injectionMetadataCache.get(cacheKey);
            if (InjectionMetadata.needsRefresh(metadata, clazz)) {
                if (metadata != null) {
                    metadata.clear(pvs);
                }
                try {
                    metadata = buildReferenceMetadata(clazz);
                    this.injectionMetadataCache.put(cacheKey, metadata);
                } catch (NoClassDefFoundError err) {
                    throw new IllegalStateException("Failed to introspect bean class [" + clazz.getName() +
                            "] for reference metadata: could not find class that it depends on", err);
                }
            }
        }
    }
    return metadata;
}
 

import org.springframework.beans.factory.annotation.InjectionMetadata; //导入依赖的package包/类
private InjectionMetadata findResourceMetadata(String beanName, final Class<?> clazz, PropertyValues pvs) {
	// Fall back to class name as cache key, for backwards compatibility with custom callers.
	String cacheKey = (StringUtils.hasLength(beanName) ? beanName : clazz.getName());
	// Quick check on the concurrent map first, with minimal locking.
	InjectionMetadata metadata = this.injectionMetadataCache.get(cacheKey);
	if (InjectionMetadata.needsRefresh(metadata, clazz)) {
		synchronized (this.injectionMetadataCache) {
			metadata = this.injectionMetadataCache.get(cacheKey);
			if (InjectionMetadata.needsRefresh(metadata, clazz)) {
				if (metadata != null) {
					metadata.clear(pvs);
				}
				try {
					metadata = buildResourceMetadata(clazz);
					this.injectionMetadataCache.put(cacheKey, metadata);
				}
				catch (NoClassDefFoundError err) {
					throw new IllegalStateException("Failed to introspect bean class [" + clazz.getName() +
							"] for resource metadata: could not find class that it depends on", err);
				}
			}
		}
	}
	return metadata;
}
 

import org.springframework.beans.factory.annotation.InjectionMetadata; //导入依赖的package包/类
private InjectionMetadata findPersistenceMetadata(String beanName, final Class<?> clazz, PropertyValues pvs) {
	// Fall back to class name as cache key, for backwards compatibility with custom callers.
	String cacheKey = (StringUtils.hasLength(beanName) ? beanName : clazz.getName());
	// Quick check on the concurrent map first, with minimal locking.
	InjectionMetadata metadata = this.injectionMetadataCache.get(cacheKey);
	if (InjectionMetadata.needsRefresh(metadata, clazz)) {
		synchronized (this.injectionMetadataCache) {
			metadata = this.injectionMetadataCache.get(cacheKey);
			if (InjectionMetadata.needsRefresh(metadata, clazz)) {
				if (metadata != null) {
					metadata.clear(pvs);
				}
				try {
					metadata = buildPersistenceMetadata(clazz);
					this.injectionMetadataCache.put(cacheKey, metadata);
				}
				catch (NoClassDefFoundError err) {
					throw new IllegalStateException("Failed to introspect bean class [" + clazz.getName() +
							"] for persistence metadata: could not find class that it depends on", err);
				}
			}
		}
	}
	return metadata;
}
 

import org.springframework.beans.factory.annotation.InjectionMetadata; //导入依赖的package包/类
private InjectionMetadata findAutowiringMetadata(String beanName, Class<?> clazz, PropertyValues pvs) {
	// Fall back to class name as cache key, for backwards compatibility
	// with custom callers.
	String cacheKey = (StringUtils.hasLength(beanName) ? beanName : clazz.getName());
	// Quick check on the concurrent map first, with minimal locking.
	InjectionMetadata metadata = this.injectionMetadataCache.get(cacheKey);
	if (InjectionMetadata.needsRefresh(metadata, clazz)) {
		synchronized (this.injectionMetadataCache) {
			metadata = this.injectionMetadataCache.get(cacheKey);
			if (InjectionMetadata.needsRefresh(metadata, clazz)) {
				if (metadata != null) {
					metadata.clear(pvs);
				}
				try {
					metadata = buildAutowiringMetadata(clazz);
					this.injectionMetadataCache.put(cacheKey, metadata);
				} catch (NoClassDefFoundError err) {
					throw new IllegalStateException("Failed to introspect bean class [" + clazz.getName()
							+ "] for autowiring metadata: could not find class that it depends on", err);
				}
			}
		}
	}
	return metadata;
}
 

import org.springframework.beans.factory.annotation.InjectionMetadata; //导入依赖的package包/类
private void removeInjectCache(Object controller) {
    AutowiredAnnotationBeanPostProcessor autowiredAnnotationBeanPostProcessor =
            ctx.getBean(AutowiredAnnotationBeanPostProcessor.class);
    Map<String, InjectionMetadata> injectionMetadataMap =
            (Map<String, InjectionMetadata>) ReflectionUtils.getField(injectionMetadataCacheField, autowiredAnnotationBeanPostProcessor);
    injectionMetadataMap.remove(controller.getClass().getName());
}
 

import org.springframework.beans.factory.annotation.InjectionMetadata; //导入依赖的package包/类
@Override
public void postProcessMergedBeanDefinition(RootBeanDefinition beanDefinition, Class<?> beanType, String beanName) {
	super.postProcessMergedBeanDefinition(beanDefinition, beanType, beanName);
	if (beanType != null) {
		InjectionMetadata metadata = findResourceMetadata(beanName, beanType);
		metadata.checkConfigMembers(beanDefinition);
	}
}
 

import org.springframework.beans.factory.annotation.InjectionMetadata; //导入依赖的package包/类
@Override
public PropertyValues postProcessPropertyValues(
		PropertyValues pvs, PropertyDescriptor[] pds, Object bean, String beanName) throws BeansException {

	InjectionMetadata metadata = findResourceMetadata(beanName, bean.getClass());
	try {
		metadata.inject(bean, beanName, pvs);
	}
	catch (Throwable ex) {
		throw new BeanCreationException(beanName, "Injection of resource dependencies failed", ex);
	}
	return pvs;
}
 

import org.springframework.beans.factory.annotation.InjectionMetadata; //导入依赖的package包/类
@Override
public void postProcessMergedBeanDefinition(RootBeanDefinition beanDefinition, Class<?> beanType, String beanName) {
	if (beanType != null) {
		InjectionMetadata metadata = findPersistenceMetadata(beanName, beanType);
		metadata.checkConfigMembers(beanDefinition);
	}
}
 

import org.springframework.beans.factory.annotation.InjectionMetadata; //导入依赖的package包/类
@Override
public PropertyValues postProcessPropertyValues(
		PropertyValues pvs, PropertyDescriptor[] pds, Object bean, String beanName) throws BeansException {

	InjectionMetadata metadata = findPersistenceMetadata(beanName, bean.getClass());
	try {
		metadata.inject(bean, beanName, pvs);
	}
	catch (Throwable ex) {
		throw new BeanCreationException(beanName, "Injection of persistence dependencies failed", ex);
	}
	return pvs;
}
 

import org.springframework.beans.factory.annotation.InjectionMetadata; //导入依赖的package包/类
private InjectionMetadata buildAutowiringMetadata(final Class<?> clazz) {
    LinkedList<InjectionMetadata.InjectedElement> elements = new LinkedList<InjectionMetadata.InjectedElement>();
    Class<?> targetClass = clazz;

    do {
        final LinkedList<InjectionMetadata.InjectedElement> currElements =
                new LinkedList<InjectionMetadata.InjectedElement>();

        doWithLocalFields(targetClass, new ReflectionUtils.FieldCallback() {
            @Override
            public void doWith(Field field) throws IllegalArgumentException, IllegalAccessException {
                CreateCache ann = field.getAnnotation(CreateCache.class);
                if (ann != null) {
                    if (Modifier.isStatic(field.getModifiers())) {
                        if (logger.isWarnEnabled()) {
                            logger.warn("Autowired annotation is not supported on static fields: " + field);
                        }
                        return;
                    }
                    currElements.add(new AutowiredFieldElement(field, ann));
                }
            }
        });

        elements.addAll(0, currElements);
        targetClass = targetClass.getSuperclass();
    }
    while (targetClass != null && targetClass != Object.class);

    return new InjectionMetadata(clazz, elements);
}
 

import org.springframework.beans.factory.annotation.InjectionMetadata; //导入依赖的package包/类
@Override
public void postProcessMergedBeanDefinition(RootBeanDefinition beanDefinition, Class<?> beanType, String beanName) {
	super.postProcessMergedBeanDefinition(beanDefinition, beanType, beanName);
	if (beanType != null) {
		InjectionMetadata metadata = findResourceMetadata(beanName, beanType, null);
		metadata.checkConfigMembers(beanDefinition);
	}
}
 

import org.springframework.beans.factory.annotation.InjectionMetadata; //导入依赖的package包/类
@Override
public PropertyValues postProcessPropertyValues(
		PropertyValues pvs, PropertyDescriptor[] pds, Object bean, String beanName) throws BeansException {

	InjectionMetadata metadata = findResourceMetadata(beanName, bean.getClass(), pvs);
	try {
		metadata.inject(bean, beanName, pvs);
	}
	catch (Throwable ex) {
		throw new BeanCreationException(beanName, "Injection of resource dependencies failed", ex);
	}
	return pvs;
}
 

import org.springframework.beans.factory.annotation.InjectionMetadata; //导入依赖的package包/类
@Override
public void postProcessMergedBeanDefinition(RootBeanDefinition beanDefinition, Class<?> beanType, String beanName) {
	if (beanType != null) {
		InjectionMetadata metadata = findPersistenceMetadata(beanName, beanType, null);
		metadata.checkConfigMembers(beanDefinition);
	}
}
 

import org.springframework.beans.factory.annotation.InjectionMetadata; //导入依赖的package包/类
@Override
public PropertyValues postProcessPropertyValues(
		PropertyValues pvs, PropertyDescriptor[] pds, Object bean, String beanName) throws BeansException {

	InjectionMetadata metadata = findPersistenceMetadata(beanName, bean.getClass(), pvs);
	try {
		metadata.inject(bean, beanName, pvs);
	}
	catch (Throwable ex) {
		throw new BeanCreationException(beanName, "Injection of persistence dependencies failed", ex);
	}
	return pvs;
}
 

import org.springframework.beans.factory.annotation.InjectionMetadata; //导入依赖的package包/类
public PropertyValues postProcessPropertyValues(PropertyValues pvs, final Optional<PropertyDescriptor[]> pds, Object bean, String beanName)
		throws BeansException {

	InjectionMetadata metadata = findAutowiringMetadata(beanName, bean.getClass(), pvs);
	try {
		metadata.inject(bean, beanName, pvs);
	} catch (Throwable ex) {
		throw new BeanCreationException(beanName, "Injection of autowired dependencies failed", ex);
	}
	return pvs;
}
 

import org.springframework.beans.factory.annotation.InjectionMetadata; //导入依赖的package包/类
public void processInjection(Object bean) throws BeansException {
	Class<?> clazz = bean.getClass();
	InjectionMetadata metadata = findAutowiringMetadata(clazz.getName(), clazz, null);
	try {
		metadata.inject(bean, null, null);
	} catch (Throwable ex) {
		throw new BeanCreationException("Injection of autowired dependencies failed for class [" + clazz + "]", ex);
	}
}
 

import org.springframework.beans.factory.annotation.InjectionMetadata; //导入依赖的package包/类
public PropertyValues postProcessPropertyValues(
		PropertyValues pvs, PropertyDescriptor[] pds, Object bean, String beanName) throws BeansException {

	InjectionMetadata metadata = findResourceMetadata(beanName, bean.getClass());
	try {
		metadata.inject(bean, beanName, pvs);
	}
	catch (Throwable ex) {
		throw new BeanCreationException(beanName, "Injection of resource dependencies failed", ex);
	}
	return pvs;
}
 

import org.springframework.beans.factory.annotation.InjectionMetadata; //导入依赖的package包/类
public PropertyValues postProcessPropertyValues(
		PropertyValues pvs, PropertyDescriptor[] pds, Object bean, String beanName) throws BeansException {

	InjectionMetadata metadata = findPersistenceMetadata(beanName, bean.getClass());
	try {
		metadata.inject(bean, beanName, pvs);
	}
	catch (Throwable ex) {
		throw new BeanCreationException(beanName, "Injection of persistence dependencies failed", ex);
	}
	return pvs;
}
 

import org.springframework.beans.factory.annotation.InjectionMetadata; //导入依赖的package包/类
/**
 * Finds {@link InjectionMetadata.InjectedElement} Metadata from annotated {@link Reference @Reference} fields
 *
 * @param beanClass The {@link Class} of Bean
 * @return non-null {@link List}
 */
private List<InjectionMetadata.InjectedElement> findFieldReferenceMetadata(final Class<?> beanClass) {

    final List<InjectionMetadata.InjectedElement> elements = new LinkedList<InjectionMetadata.InjectedElement>();

    ReflectionUtils.doWithFields(beanClass, new ReflectionUtils.FieldCallback() {
        @Override
        public void doWith(Field field) throws IllegalArgumentException, IllegalAccessException {

            Reference reference = findReferenceAnnotation(field);

            if (reference != null) {

                if (Modifier.isStatic(field.getModifiers())) {
                    if (logger.isWarnEnabled()) {
                        logger.warn("@Reference annotation is not supported on static fields: " + field);
                    }
                    return;
                }

                elements.add(new ReferenceFieldElement(field, reference));
            }

        }
    });

    return elements;

}