Fix cyclical package dependency

Author: rstoyanchev

spring-web/src/main/java/org/springframework/web/bind/support/ControllerAdviceBean.java renamed to spring-web/src/main/java/org/springframework/web/method/ControllerAdviceBean.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.web.bind.support;
+package org.springframework.web.method;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -29,7 +29,11 @@
 
 /**
  * Encapsulates information about an {@linkplain ControllerAdvice @ControllerAdvice}
- * bean without requiring the bean to be instantiated.
+ * Spring-managed bean without necessarily requiring it to be instantiated.
+ *
+ * <p>The {@link #findAnnotatedBeans(ApplicationContext)} method can be used to discover
+ * such beans. However, an {@code ControllerAdviceBean} may be created from
+ * any object, including ones without an {@code @ControllerAdvice}.
  *
  * @author Rossen Stoyanchev
  * @since 3.2
@@ -55,7 +59,12 @@ public ControllerAdviceBean(String beanName, BeanFactory beanFactory) {
 				"Bean factory [" + beanFactory + "] does not contain bean " + "with name [" + beanName + "]");
 		this.bean = beanName;
 		this.beanFactory = beanFactory;
-		this.order = initOrder(this.beanFactory.getType(beanName));
+		this.order = initOrderFromBeanType(this.beanFactory.getType(beanName));
+	}
+
+	private static int initOrderFromBeanType(Class<?> beanType) {
+		Order annot = AnnotationUtils.findAnnotation(beanType, Order.class);
+		return (annot != null) ? annot.value() : Ordered.LOWEST_PRECEDENCE;
 	}
 
 	/**
@@ -65,21 +74,20 @@ public ControllerAdviceBean(String beanName, BeanFactory beanFactory) {
 	public ControllerAdviceBean(Object bean) {
 		Assert.notNull(bean, "'bean' must not be null");
 		this.bean = bean;
-		this.order = initOrder(bean.getClass());
+		this.order = initOrderFromBean(bean);
 		this.beanFactory = null;
 	}
 
-	private static int initOrder(Class<?> beanType) {
-		Order orderAnnot = AnnotationUtils.findAnnotation(beanType, Order.class);
-		return (orderAnnot != null) ? orderAnnot.value() : Ordered.LOWEST_PRECEDENCE;
+	private static int initOrderFromBean(Object bean) {
+		return (bean instanceof Ordered) ? ((Ordered) bean).getOrder() : initOrderFromBeanType(bean.getClass());
 	}
 
 	/**
 	 * Find the names of beans annotated with
 	 * {@linkplain ControllerAdvice @ControllerAdvice} in the given
 	 * ApplicationContext and wrap them as {@code ControllerAdviceBean} instances.
 	 */
-	public static List<ControllerAdviceBean> findBeans(ApplicationContext applicationContext) {
+	public static List<ControllerAdviceBean> findAnnotatedBeans(ApplicationContext applicationContext) {
 		List<ControllerAdviceBean> beans = new ArrayList<ControllerAdviceBean>();
 		for (String name : applicationContext.getBeanDefinitionNames()) {
 			if (applicationContext.findAnnotationOnBean(name, ControllerAdvice.class) != null) {
@@ -90,12 +98,9 @@ public static List<ControllerAdviceBean> findBeans(ApplicationContext applicatio
 	}
 
 	/**
-	 * Return a bean instance if necessary resolving the bean name through the BeanFactory.
+	 * Returns the order value extracted from the {@link ControllerAdvice}
+	 * annotation or {@link Ordered#LOWEST_PRECEDENCE} otherwise.
 	 */
-	public Object resolveBean() {
-		return (this.bean instanceof String) ? this.beanFactory.getBean((String) this.bean) : this.bean;
-	}
-
 	public int getOrder() {
 		return this.order;
 	}
@@ -111,6 +116,13 @@ public Class<?> getBeanType() {
 		return ClassUtils.getUserClass(clazz);
 	}
 
+	/**
+	 * Return a bean instance if necessary resolving the bean name through the BeanFactory.
+	 */
+	public Object resolveBean() {
+		return (this.bean instanceof String) ? this.beanFactory.getBean((String) this.bean) : this.bean;
+	}
+
 	@Override
 	public boolean equals(Object o) {
 		if (this == o) {

spring-web/src/main/java/org/springframework/web/method/HandlerMethod.java

@@ -29,13 +29,15 @@
 import org.springframework.util.ClassUtils;
 
 /**
- * Encapsulates information about a bean method consisting of a {@linkplain #getMethod() method} and a
- * {@linkplain #getBean() bean}. Provides convenient access to method parameters, the method return value,
- * method annotations.
+ * Encapsulates information about a bean method consisting of a
+ * {@linkplain #getMethod() method} and a {@linkplain #getBean() bean}. Provides
+ * convenient access to method parameters, the method return value, method
+ * annotations.
  *
- * <p>The class may be created with a bean instance or with a bean name (e.g. lazy bean, prototype bean).
- * Use {@link #createWithResolvedBean()} to obtain an {@link HandlerMethod} instance with a bean instance
- * initialized through the bean factory.
+ * <p>The class may be created with a bean instance or with a bean name (e.g. lazy
+ * bean, prototype bean). Use {@link #createWithResolvedBean()} to obtain an
+ * {@link HandlerMethod} instance with a bean instance initialized through the
+ * bean factory.
  *
  * @author Arjen Poutsma
  * @author Rossen Stoyanchev

spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/ExceptionHandlerExceptionResolver.java

@@ -41,8 +41,8 @@
 import org.springframework.http.converter.xml.XmlAwareFormHttpMessageConverter;
 import org.springframework.web.accept.ContentNegotiationManager;
 import org.springframework.web.bind.annotation.ControllerAdvice;
-import org.springframework.web.bind.support.ControllerAdviceBean;
 import org.springframework.web.context.request.ServletWebRequest;
+import org.springframework.web.method.ControllerAdviceBean;
 import org.springframework.web.method.HandlerMethod;
 import org.springframework.web.method.annotation.ExceptionHandlerMethodResolver;
 import org.springframework.web.method.annotation.MapMethodProcessor;
@@ -285,7 +285,7 @@ private void initExceptionHandlerAdviceCache() {
 			logger.debug("Looking for exception mappings: " + getApplicationContext());
 		}
 
-		List<ControllerAdviceBean> beans = ControllerAdviceBean.findBeans(getApplicationContext());
+		List<ControllerAdviceBean> beans = ControllerAdviceBean.findAnnotatedBeans(getApplicationContext());
 		Collections.sort(beans, new OrderComparator());
 
 		for (ControllerAdviceBean bean : beans) {

spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/RequestMappingHandlerAdapter.java

@@ -54,7 +54,6 @@
 import org.springframework.web.bind.annotation.InitBinder;
 import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.support.ControllerAdviceBean;
 import org.springframework.web.bind.support.DefaultDataBinderFactory;
 import org.springframework.web.bind.support.DefaultSessionAttributeStore;
 import org.springframework.web.bind.support.SessionAttributeStore;
@@ -67,6 +66,7 @@
 import org.springframework.web.context.request.async.AsyncWebRequest;
 import org.springframework.web.context.request.async.AsyncWebUtils;
 import org.springframework.web.context.request.async.WebAsyncManager;
+import org.springframework.web.method.ControllerAdviceBean;
 import org.springframework.web.method.HandlerMethod;
 import org.springframework.web.method.HandlerMethodSelector;
 import org.springframework.web.method.annotation.ErrorsMethodArgumentResolver;
@@ -592,7 +592,7 @@ private void initControllerAdviceCache() {
 			logger.debug("Looking for controller advice: " + getApplicationContext());
 		}
 
-		List<ControllerAdviceBean> beans = ControllerAdviceBean.findBeans(getApplicationContext());
+		List<ControllerAdviceBean> beans = ControllerAdviceBean.findAnnotatedBeans(getApplicationContext());
 		Collections.sort(beans, new OrderComparator());
 
 		for (ControllerAdviceBean bean : beans) {