Restore deprecated class required by Spring Cloud

See gh-19860

Author: scottfrederick

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/properties/ConfigurationBeanFactoryMetadata.java

@@ -0,0 +1,93 @@
+/*
+ * Copyright 2012-2020 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.context.properties;
+
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Method;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.springframework.beans.BeansException;
+import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
+import org.springframework.beans.factory.support.BeanDefinitionRegistry;
+import org.springframework.beans.factory.support.GenericBeanDefinition;
+import org.springframework.beans.factory.support.RootBeanDefinition;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.ApplicationContextAware;
+import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.core.annotation.AnnotationUtils;
+
+/**
+ * Utility class to memorize {@code @Bean} definition metadata during initialization of
+ * the bean factory.
+ *
+ * @author Dave Syer
+ * @since 1.1.0
+ * @deprecated since 2.2.0 in favor of {@link ConfigurationPropertiesBean}
+ */
+@Deprecated
+public class ConfigurationBeanFactoryMetadata implements ApplicationContextAware {
+
+	/**
+	 * The bean name that this class is registered with.
+	 */
+	public static final String BEAN_NAME = ConfigurationBeanFactoryMetadata.class.getName();
+
+	private ConfigurableApplicationContext applicationContext;
+
+	public <A extends Annotation> Map<String, Object> getBeansWithFactoryAnnotation(Class<A> type) {
+		Map<String, Object> result = new HashMap<>();
+		for (String name : this.applicationContext.getBeanFactory().getBeanDefinitionNames()) {
+			if (findFactoryAnnotation(name, type) != null) {
+				result.put(name, this.applicationContext.getBean(name));
+			}
+		}
+		return result;
+	}
+
+	public <A extends Annotation> A findFactoryAnnotation(String beanName, Class<A> type) {
+		Method method = findFactoryMethod(beanName);
+		return (method != null) ? AnnotationUtils.findAnnotation(method, type) : null;
+	}
+
+	public Method findFactoryMethod(String beanName) {
+		ConfigurableListableBeanFactory beanFactory = this.applicationContext.getBeanFactory();
+		if (beanFactory.containsBeanDefinition(beanName)) {
+			BeanDefinition beanDefinition = beanFactory.getMergedBeanDefinition(beanName);
+			if (beanDefinition instanceof RootBeanDefinition) {
+				return ((RootBeanDefinition) beanDefinition).getResolvedFactoryMethod();
+			}
+		}
+		return null;
+	}
+
+	@Override
+	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
+		this.applicationContext = (ConfigurableApplicationContext) applicationContext;
+	}
+
+	static void register(BeanDefinitionRegistry registry) {
+		if (!registry.containsBeanDefinition(BEAN_NAME)) {
+			GenericBeanDefinition definition = new GenericBeanDefinition();
+			definition.setBeanClass(ConfigurationBeanFactoryMetadata.class);
+			definition.setRole(BeanDefinition.ROLE_INFRASTRUCTURE);
+			registry.registerBeanDefinition(ConfigurationBeanFactoryMetadata.BEAN_NAME, definition);
+		}
+	}
+
+}

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/properties/EnableConfigurationPropertiesRegistrar.java

@@ -51,6 +51,7 @@ static void registerInfrastructureBeans(BeanDefinitionRegistry registry) {
 		ConfigurationPropertiesBindingPostProcessor.register(registry);
 		BoundConfigurationProperties.register(registry);
 		ConfigurationPropertiesBeanDefinitionValidator.register(registry);
+		ConfigurationBeanFactoryMetadata.register(registry);
 	}
 
 }