SPR-8430 Rename WebMvcConfiguration to DelegatingWebMvcConfiguration, make it public and make delegation methods final

org.springframework.web.servlet/src/main/java/org/springframework/web/servlet/config/annotation/DelegatingWebMvcConfiguration.java

@@ -25,21 +25,14 @@ import org.springframework.http.converter.HttpMessageConverter;
 import org.springframework.validation.Validator;
 import org.springframework.web.method.support.HandlerMethodArgumentResolver;
 import org.springframework.web.method.support.HandlerMethodReturnValueHandler;
-import org.springframework.web.servlet.DispatcherServlet;
 import org.springframework.web.servlet.HandlerExceptionResolver;
 
 /**
- * Provides default configuration for Spring MVC applications by registering Spring MVC infrastructure components 
- * to be detected by the {@link DispatcherServlet}. This class is imported whenever @{@link EnableWebMvc} is 
- * added to an @{@link Configuration} class.
+ * A variant of {@link WebMvcConfigurationSupport} that delegates to one or more registered {@link WebMvcConfigurer} 
+ * implementations allowing each of them to customize the default Spring MVC configuration. 
  * 
- * <p>See the base class {@link WebMvcConfigurationSupport} for a list of registered instances. This class is closed
- * for extension. However, the configuration it provides can be customized by having your @{@link Configuration}
- * class implement {@link WebMvcConfigurer} or more conveniently extend from {@link WebMvcConfigurerAdapter}.
- * 
- * <p>This class will detect your @{@link Configuration} class and any other @{@link Configuration} classes that 
- * implement {@link WebMvcConfigurer} via autowiring and will allow each of them to participate in the process 
- * of configuring Spring MVC through the configuration callbacks defined in {@link WebMvcConfigurer}.
+ * <p>This class is automatically imported when @{@link EnableWebMvc} is used on an @{@link Configuration} class.
+ * In turn it detects all implementations of {@link WebMvcConfigurer} via autowiring and in turn delegates to them.  
  * 
  * @see EnableWebMvc
  * @see WebMvcConfigurer
@@ -48,7 +41,7 @@ import org.springframework.web.servlet.HandlerExceptionResolver;
  * @since 3.1
  */
 @Configuration
-class WebMvcConfiguration extends WebMvcConfigurationSupport {
+public class DelegatingWebMvcConfiguration extends WebMvcConfigurationSupport {
 
 	private final WebMvcConfigurerComposite configurers = new WebMvcConfigurerComposite();
 
@@ -61,53 +54,52 @@ class WebMvcConfiguration extends WebMvcConfigurationSupport {
 	}
 
 	@Override
-	protected void configureInterceptors(InterceptorConfigurer configurer) {
+	protected final void configureInterceptors(InterceptorConfigurer configurer) {
 		configurers.configureInterceptors(configurer);
 	}
 
 	@Override
-	protected void configureViewControllers(ViewControllerConfigurer configurer) {
+	protected final void configureViewControllers(ViewControllerConfigurer configurer) {
 		configurers.configureViewControllers(configurer);
 	}
 
 	@Override
-	protected void configureResourceHandling(ResourceConfigurer configurer) {
+	protected final void configureResourceHandling(ResourceConfigurer configurer) {
 		configurers.configureResourceHandling(configurer);
 	}
 
 	@Override
-	protected void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
+	protected final void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
 		configurers.configureDefaultServletHandling(configurer);
 	}
 	
 	@Override
-	protected void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) {
+	protected final void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) {
 		configurers.addArgumentResolvers(argumentResolvers);
 	}
 
 	@Override
-	protected void addReturnValueHandlers(List<HandlerMethodReturnValueHandler> returnValueHandlers) {
+	protected final void addReturnValueHandlers(List<HandlerMethodReturnValueHandler> returnValueHandlers) {
 		configurers.addReturnValueHandlers(returnValueHandlers);
 	}
 
 	@Override
-	protected void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
+	protected final void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
 		configurers.configureMessageConverters(converters);
 	}
 
-	
 	@Override
-	protected void addFormatters(FormatterRegistry registry) {
+	protected final void addFormatters(FormatterRegistry registry) {
 		configurers.addFormatters(registry);
 	}
 
 	@Override
-	protected Validator getValidator() {
+	protected final Validator getValidator() {
 		return configurers.getValidator();
 	}
 
 	@Override
-	protected void configureHandlerExceptionResolvers(List<HandlerExceptionResolver> exceptionResolvers) {
+	protected final void configureHandlerExceptionResolvers(List<HandlerExceptionResolver> exceptionResolvers) {
 		configurers.configureHandlerExceptionResolvers(exceptionResolvers);
 	}
 

org.springframework.web.servlet/src/main/java/org/springframework/web/servlet/config/annotation/EnableWebMvc.java

@@ -25,7 +25,7 @@ import org.springframework.web.servlet.DispatcherServlet;
 /**
  * Enables default Spring MVC configuration and registers Spring MVC infrastructure components expected by the
  * {@link DispatcherServlet}. Add this annotation to an application @{@link Configuration} class. It will in
- * turn import the @{@link Configuration} class {@link WebMvcConfiguration}, which provides default Spring MVC
+ * turn import the @{@link Configuration} class {@link DelegatingWebMvcConfiguration}, which provides default Spring MVC
  * configuration.
  * <pre class="code">
  * &#064;Configuration
@@ -76,6 +76,6 @@ import org.springframework.web.servlet.DispatcherServlet;
 @Retention(RetentionPolicy.RUNTIME)
 @Target(ElementType.TYPE)
 @Documented
-@Import(WebMvcConfiguration.class)
+@Import(DelegatingWebMvcConfiguration.class)
 public @interface EnableWebMvc {
 }

org.springframework.web.servlet/src/main/java/org/springframework/web/servlet/config/annotation/WebMvcConfigurationSupport.java

@@ -265,7 +265,7 @@ public abstract class WebMvcConfigurationSupport implements ApplicationContextAw
 		ConfigurableWebBindingInitializer webBindingInitializer = new ConfigurableWebBindingInitializer();
 		webBindingInitializer.setConversionService(mvcConversionService());
 		webBindingInitializer.setValidator(mvcValidator());
-		extendWebBindingInitializer(webBindingInitializer);
+		configureWebBindingInitializer(webBindingInitializer);
 		
 		List<HandlerMethodArgumentResolver> argumentResolvers = new ArrayList<HandlerMethodArgumentResolver>();
 		addArgumentResolvers(argumentResolvers);
@@ -285,7 +285,7 @@ public abstract class WebMvcConfigurationSupport implements ApplicationContextAw
 	 * Override this method to customize the {@link ConfigurableWebBindingInitializer} the 
 	 * {@link RequestMappingHandlerAdapter} is configured with.
 	 */
-	protected void extendWebBindingInitializer(ConfigurableWebBindingInitializer webBindingInitializer) {
+	protected void configureWebBindingInitializer(ConfigurableWebBindingInitializer webBindingInitializer) {
 	}
 
 	/**

org.springframework.web.servlet/src/test/java/org/springframework/web/servlet/config/annotation/WebMvcConfigurationTests.java

@@ -63,14 +63,14 @@ import org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolv
  */
 public class WebMvcConfigurationTests {
 
-	private WebMvcConfiguration mvcConfiguration;
+	private DelegatingWebMvcConfiguration mvcConfiguration;
 
 	private WebMvcConfigurer configurer;
 
 	@Before
 	public void setUp() {
 		configurer = EasyMock.createMock(WebMvcConfigurer.class);
-		mvcConfiguration = new WebMvcConfiguration();
+		mvcConfiguration = new DelegatingWebMvcConfiguration();
 	}
 
 	@Test
@@ -114,7 +114,7 @@ public class WebMvcConfigurationTests {
 				converters.add(new StringHttpMessageConverter());
 			}
 		});
-		mvcConfiguration = new WebMvcConfiguration();
+		mvcConfiguration = new DelegatingWebMvcConfiguration();
 		mvcConfiguration.setConfigurers(configurers);
 		
 		adapter = mvcConfiguration.requestMappingHandlerAdapter();