Extract WebMvcProperties

Extract WebMvcProperties from WebMvcAutoConfiguration and also
update conditionals to use @ConditionalOnProperty.

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration.java

@@ -35,8 +35,8 @@ import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
-import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
@@ -128,7 +128,7 @@ public class WebMvcAutoConfiguration {
 	// on the classpath
 	@Configuration
 	@EnableWebMvc
-	@EnableConfigurationProperties(ResourceProperties.class)
+	@EnableConfigurationProperties({ WebMvcProperties.class, ResourceProperties.class })
 	public static class WebMvcAutoConfigurationAdapter extends WebMvcConfigurerAdapter {
 
 		private static Log logger = LogFactory.getLog(WebMvcConfigurerAdapter.class);
@@ -142,14 +142,8 @@ public class WebMvcAutoConfiguration {
 		@Autowired
 		private ResourceProperties resourceProperties = new ResourceProperties();
 
-		@Value("${spring.mvc.message-codes-resolver.format:}")
-		private DefaultMessageCodesResolver.Format messageCodesResolverFormat = null;
-
-		@Value("${spring.mvc.locale:}")
-		private String locale = "";
-
-		@Value("${spring.mvc.date-format:}")
-		private String dateFormat = "";
+		@Autowired
+		private WebMvcProperties mvcProperties = new WebMvcProperties();
 
 		@Autowired
 		private ListableBeanFactory beanFactory;
@@ -203,22 +197,24 @@ public class WebMvcAutoConfiguration {
 
 		@Bean
 		@ConditionalOnMissingBean(LocaleResolver.class)
-		@ConditionalOnExpression("'${spring.mvc.locale:}' != ''")
+		@ConditionalOnProperty(prefix = "spring.mvc.", value = "locale")
 		public LocaleResolver localeResolver() {
-			return new FixedLocaleResolver(StringUtils.parseLocaleString(this.locale));
+			return new FixedLocaleResolver(
+					StringUtils.parseLocaleString(this.mvcProperties.getLocale()));
 		}
 
 		@Bean
-		@ConditionalOnExpression("'${spring.mvc.date-format:}' != ''")
+		@ConditionalOnProperty(prefix = "spring.mvc.", value = "date-format")
 		public Formatter<Date> dateFormatter() {
-			return new DateFormatter(this.dateFormat);
+			return new DateFormatter(this.mvcProperties.getDateFormat());
 		}
 
 		@Override
 		public MessageCodesResolver getMessageCodesResolver() {
-			if (this.messageCodesResolverFormat != null) {
+			if (this.mvcProperties.getMessageCodesResolverFormat() != null) {
 				DefaultMessageCodesResolver resolver = new DefaultMessageCodesResolver();
-				resolver.setMessageCodeFormatter(this.messageCodesResolverFormat);
+				resolver.setMessageCodeFormatter(this.mvcProperties
+						.getMessageCodesResolverFormat());
 				return resolver;
 			}
 			return null;

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/WebMvcProperties.java

@@ -0,0 +1,62 @@
+/*
+ * Copyright 2012-2014 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
+ *
+ *      http://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.autoconfigure.web;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.validation.DefaultMessageCodesResolver;
+
+/**
+ * {@link ConfigurationProperties properties} for Spring MVC.
+ * 
+ * @author Phillip Webb
+ * @since 1.1
+ */
+@ConfigurationProperties("spring.mvc")
+public class WebMvcProperties {
+
+	private DefaultMessageCodesResolver.Format messageCodesResolverFormat;
+
+	private String locale;
+
+	private String dateFormat;
+
+	public DefaultMessageCodesResolver.Format getMessageCodesResolverFormat() {
+		return this.messageCodesResolverFormat;
+	}
+
+	public void setMessageCodesResolverFormat(
+			DefaultMessageCodesResolver.Format messageCodesResolverFormat) {
+		this.messageCodesResolverFormat = messageCodesResolverFormat;
+	}
+
+	public String getLocale() {
+		return this.locale;
+	}
+
+	public void setLocale(String locale) {
+		this.locale = locale;
+	}
+
+	public String getDateFormat() {
+		return this.dateFormat;
+	}
+
+	public void setDateFormat(String dateFormat) {
+		this.dateFormat = dateFormat;
+	}
+
+}

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/WebMvcAutoConfigurationTests.java

@@ -220,7 +220,7 @@ public class WebMvcAutoConfigurationTests {
 		this.context = new AnnotationConfigEmbeddedWebApplicationContext();
 		// set fixed date format
 		EnvironmentTestUtils.addEnvironment(this.context,
-				"spring.mvc.date-format:dd*MM*yyyy");
+				"spring.mvc.dateFormat:dd*MM*yyyy");
 		this.context.register(AllResources.class, Config.class,
 				WebMvcAutoConfiguration.class,
 				HttpMessageConvertersAutoConfiguration.class,
@@ -248,7 +248,7 @@ public class WebMvcAutoConfigurationTests {
 	public void overrideMessageCodesFormat() throws Exception {
 		this.context = new AnnotationConfigEmbeddedWebApplicationContext();
 		EnvironmentTestUtils.addEnvironment(this.context,
-				"spring.mvc.message-codes-resolver.format:POSTFIX_ERROR_CODE");
+				"spring.mvc.messageCodesResolverFormat:POSTFIX_ERROR_CODE");
 		this.context.register(AllResources.class, Config.class,
 				WebMvcAutoConfiguration.class,
 				HttpMessageConvertersAutoConfiguration.class,

spring-boot-docs/src/main/asciidoc/appendix-application-properties.adoc

@@ -69,7 +69,7 @@ content into your application; rather pick only the properties that you need.
 	http.mappers.json-sort-keys=false # sort keys
 	spring.mvc.locale= # set fixed locale, e.g. en_UK
 	spring.mvc.date-format= # set fixed date format, e.g. dd/MM/yyyy
-	spring.mvc.message-codes-resolver.format= # PREFIX_ERROR_CODE / POSTFIX_ERROR_CODE
+	spring.mvc.message-codes-resolver-format= # PREFIX_ERROR_CODE / POSTFIX_ERROR_CODE
 	spring.view.prefix= # MVC view prefix
 	spring.view.suffix= # ... and suffix
 	spring.resources.cache-period= # cache timeouts in headers sent to browser