Migrate Spring Data Rest settings

In order to have more control on the structure of the configuration, we
do not bind to `RepositoryRestConfiguration` directly anymore. This
commit introduces `RepositoryProperties` instead.

See gh-3854
Closes gh-4073

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/data/rest/RepositoryRestMvcAutoConfiguration.java

@@ -23,6 +23,7 @@ import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean
 import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
 import org.springframework.boot.autoconfigure.jackson.JacksonAutoConfiguration;
 import org.springframework.boot.autoconfigure.web.HttpMessageConvertersAutoConfiguration;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Import;
@@ -50,6 +51,7 @@ import org.springframework.data.rest.webmvc.config.RepositoryRestMvcConfiguratio
 @ConditionalOnClass(RepositoryRestMvcConfiguration.class)
 @AutoConfigureAfter({ HttpMessageConvertersAutoConfiguration.class,
 		JacksonAutoConfiguration.class })
+@EnableConfigurationProperties(RepositoryRestProperties.class)
 @Import(SpringBootRepositoryRestMvcConfiguration.class)
 public class RepositoryRestMvcAutoConfiguration {
 

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/data/rest/RepositoryRestProperties.java

@@ -0,0 +1,196 @@
+/*
+ * Copyright 2012-2015 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.data.rest;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.data.rest.core.config.RepositoryRestConfiguration;
+import org.springframework.http.MediaType;
+
+/**
+ * Configuration properties for Spring Data REST.
+ *
+ * @author Stephane Nicoll
+ * @since 1.3.0
+ */
+@ConfigurationProperties("spring.data.rest")
+public class RepositoryRestProperties {
+
+	/**
+	 * Base path to be used by Spring Data REST to expose repository resources.
+	 */
+	private String basePath;
+
+	/**
+	 * Default size of pages.
+	 */
+	private Integer defaultPageSize;
+
+	/**
+	 * Maximum size of pages.
+	 */
+	private Integer maxPageSize;
+
+	/**
+	 * Name of the URL query string parameter that indicates what page to return.
+	 */
+	private String pageParamName;
+
+	/**
+	 * Name of the URL query string parameter that indicates how many results to return at once.
+	 */
+	private String limitParamName;
+
+	/**
+	 * Name of the URL query string parameter that indicates what direction to sort results.
+	 */
+	private String sortParamName;
+
+	/**
+	 * Content type to use as a default when none is specified.
+	 */
+	private MediaType defaultMediaType;
+
+	/**
+	 * Return a response body after creating an entity.
+	 */
+	private Boolean returnBodyOnCreate;
+
+	/**
+	 * Return a response body after updating an entity.
+	 */
+	private Boolean returnBodyOnUpdate;
+
+	/**
+	 * Enable enum value translation via the Spring Data REST default resource bundle. Will use
+	 * the fully qualified enum name as key.
+	 */
+	private Boolean enableEnumTranslation;
+
+	public void applyTo(RepositoryRestConfiguration configuration) {
+		if (this.basePath != null) {
+			configuration.setBasePath(this.basePath);
+		}
+		if (this.defaultPageSize != null) {
+			configuration.setDefaultPageSize(this.defaultPageSize);
+		}
+		if (this.maxPageSize != null) {
+			configuration.setMaxPageSize(this.maxPageSize);
+		}
+		if (this.pageParamName != null) {
+			configuration.setPageParamName(this.pageParamName);
+		}
+		if (this.limitParamName != null) {
+			configuration.setLimitParamName(this.limitParamName);
+		}
+		if (this.sortParamName != null) {
+			configuration.setSortParamName(this.sortParamName);
+		}
+		if (this.defaultMediaType != null) {
+			configuration.setDefaultMediaType(this.defaultMediaType);
+		}
+		if (this.returnBodyOnCreate != null) {
+			configuration.setReturnBodyOnCreate(this.returnBodyOnCreate);
+		}
+		if (this.returnBodyOnUpdate != null) {
+			configuration.setReturnBodyOnUpdate(this.returnBodyOnUpdate);
+		}
+		if (this.enableEnumTranslation != null) {
+			configuration.setEnableEnumTranslation(this.enableEnumTranslation);
+		}
+	}
+
+	public String getBasePath() {
+		return this.basePath;
+	}
+
+	public void setBasePath(String basePath) {
+		this.basePath = basePath;
+	}
+
+	public Integer getDefaultPageSize() {
+		return this.defaultPageSize;
+	}
+
+	public void setDefaultPageSize(Integer defaultPageSize) {
+		this.defaultPageSize = defaultPageSize;
+	}
+
+	public Integer getMaxPageSize() {
+		return this.maxPageSize;
+	}
+
+	public void setMaxPageSize(Integer maxPageSize) {
+		this.maxPageSize = maxPageSize;
+	}
+
+	public String getPageParamName() {
+		return this.pageParamName;
+	}
+
+	public void setPageParamName(String pageParamName) {
+		this.pageParamName = pageParamName;
+	}
+
+	public String getLimitParamName() {
+		return this.limitParamName;
+	}
+
+	public void setLimitParamName(String limitParamName) {
+		this.limitParamName = limitParamName;
+	}
+
+	public String getSortParamName() {
+		return this.sortParamName;
+	}
+
+	public void setSortParamName(String sortParamName) {
+		this.sortParamName = sortParamName;
+	}
+
+	public MediaType getDefaultMediaType() {
+		return this.defaultMediaType;
+	}
+
+	public void setDefaultMediaType(MediaType defaultMediaType) {
+		this.defaultMediaType = defaultMediaType;
+	}
+
+	public Boolean getReturnBodyOnCreate() {
+		return this.returnBodyOnCreate;
+	}
+
+	public void setReturnBodyOnCreate(Boolean returnBodyOnCreate) {
+		this.returnBodyOnCreate = returnBodyOnCreate;
+	}
+
+	public Boolean getReturnBodyOnUpdate() {
+		return this.returnBodyOnUpdate;
+	}
+
+	public void setReturnBodyOnUpdate(Boolean returnBodyOnUpdate) {
+		this.returnBodyOnUpdate = returnBodyOnUpdate;
+	}
+
+	public Boolean getEnableEnumTranslation() {
+		return this.enableEnumTranslation;
+	}
+
+	public void setEnableEnumTranslation(Boolean enableEnumTranslation) {
+		this.enableEnumTranslation = enableEnumTranslation;
+	}
+
+}

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/data/rest/SpringBootRepositoryRestMvcConfiguration.java

@@ -16,7 +16,7 @@
 
 package org.springframework.boot.autoconfigure.data.rest;
 
-import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.data.rest.core.config.RepositoryRestConfiguration;
@@ -33,11 +33,15 @@ import org.springframework.data.rest.webmvc.config.RepositoryRestMvcConfiguratio
 @Configuration
 class SpringBootRepositoryRestMvcConfiguration extends RepositoryRestMvcConfiguration {
 
+	@Autowired
+	private RepositoryRestProperties properties;
+
 	@Bean
-	@ConfigurationProperties(prefix = "spring.data.rest")
 	@Override
 	public RepositoryRestConfiguration config() {
-		return super.config();
+		RepositoryRestConfiguration config = super.config();
+		this.properties.applyTo(config);
+		return config;
 	}
 
 }

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/data/rest/RepositoryRestMvcAutoConfigurationTests.java

@@ -37,6 +37,7 @@ import org.springframework.context.annotation.Import;
 import org.springframework.data.rest.core.config.RepositoryRestConfiguration;
 import org.springframework.data.rest.webmvc.BaseUri;
 import org.springframework.data.rest.webmvc.config.RepositoryRestMvcConfiguration;
+import org.springframework.http.MediaType;
 import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
 import org.springframework.mock.web.MockServletContext;
 import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
@@ -87,6 +88,33 @@ public class RepositoryRestMvcAutoConfigurationTests {
 				baseUri.getUri());
 	}
 
+	@Test
+	public void testWithCustomSettings() throws Exception {
+		load(TestConfiguration.class,
+				"spring.data.rest.default-page-size:42",
+				"spring.data.rest.max-page-size:78",
+				"spring.data.rest.page-param-name:_page",
+				"spring.data.rest.limit-param-name:_limit",
+				"spring.data.rest.sort-param-name:_sort",
+				"spring.data.rest.default-media-type:application/my-json",
+				"spring.data.rest.return-body-on-create:false",
+				"spring.data.rest.return-body-on-update:false",
+				"spring.data.rest.enable-enum-translation:true");
+		assertNotNull(this.context.getBean(RepositoryRestMvcConfiguration.class));
+		RepositoryRestConfiguration bean = this.context
+				.getBean(RepositoryRestConfiguration.class);
+		assertEquals("Custom default page size not set", 42, bean.getDefaultPageSize());
+		assertEquals("Custom max page size not set", 78, bean.getMaxPageSize());
+		assertEquals("Custom page param name not set", "_page", bean.getPageParamName());
+		assertEquals("Custom limit param name not set", "_limit", bean.getLimitParamName());
+		assertEquals("Custom sort param name not set", "_sort", bean.getSortParamName());
+		assertEquals("Custom default media type not set",
+				MediaType.parseMediaType("application/my-json"), bean.getDefaultMediaType());
+		assertEquals("Custom return body on create flag not set", false, bean.returnBodyOnCreate(null));
+		assertEquals("Custom return body on update flag not set", false, bean.returnBodyOnUpdate(null));
+		assertEquals("Custom enable enum translation flag not set", true, bean.isEnableEnumTranslation());
+	}
+
 	@Test
 	public void backOffWithCustomConfiguration() {
 		load(TestConfigurationWithRestMvcConfig.class, "spring.data.rest.base-path:foo");

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

@@ -472,8 +472,16 @@ content into your application; rather pick only the properties that you need.
 	spring.data.elasticsearch.properties.*= # Additional properties used to configure the client
 	spring.data.elasticsearch.repositories.enabled=true # if spring data repository support is enabled
 
-	# DATA REST ({spring-data-rest-javadoc}/core/config/RepositoryRestConfiguration.{dc-ext}[RepositoryRestConfiguration])
+	# DATA REST ({sc-spring-boot-autoconfigure}/data/rest/RepositoryRestProperties.{sc-ext}[RepositoryRestProperties])
-	spring.data.rest.base-path= # base path against which the exporter should calculate its links
+	spring.data.rest.base-path= # base path to be used by Spring Data REST to expose repository resources
+    spring.data.rest.default-page-size= # default size of pages
+    spring.data.rest.enable-enum-translation= # enable enum value translation via the Spring Data REST default resource bundle
+    spring.data.rest.limit-param-name= # name of the URL query string parameter that indicates how many results to return at once
+    spring.data.rest.max-page-size= # maximum size of pages
+    spring.data.rest.page-param-name= # name of the URL query string parameter that indicates what page to return
+    spring.data.rest.return-body-on-create= # return a response body after creating an entity
+    spring.data.rest.return-body-on-update= # return a response body after updating an entity
+    spring.data.rest.sort-param-name= # name of the URL query string parameter that indicates what direction to sort results
 
 	# FLYWAY ({sc-spring-boot-autoconfigure}/flyway/FlywayProperties.{sc-ext}[FlywayProperties])
 	flyway.*= # Any public property available on the auto-configured `Flyway` object