DATACMNS-794 - Repositories now exposes RepositoryInformation for repository interfaces.

Author: odrotbohm

src/main/java/org/springframework/data/repository/support/Repositories.java

@@ -94,8 +94,8 @@ private synchronized void cacheRepositoryFactory(String name) {
 
 		RepositoryFactoryInformation repositoryFactoryInformation = beanFactory.getBean(name,
 				RepositoryFactoryInformation.class);
-		Class<?> domainType = ClassUtils.getUserClass(repositoryFactoryInformation.getRepositoryInformation()
-				.getDomainType());
+		Class<?> domainType = ClassUtils
+				.getUserClass(repositoryFactoryInformation.getRepositoryInformation().getDomainType());
 
 		RepositoryInformation information = repositoryFactoryInformation.getRepositoryInformation();
 		Set<Class<?>> alternativeDomainTypes = information.getAlternativeDomainTypes();
@@ -193,6 +193,28 @@ public RepositoryInformation getRepositoryInformationFor(Class<?> domainClass) {
 		return information == EMPTY_REPOSITORY_FACTORY_INFO ? null : information.getRepositoryInformation();
 	}
 
+	/**
+	 * Returns the {@link RepositoryInformation} for the given repository interface.
+	 * 
+	 * @param repositoryInterface must not be {@literal null}.
+	 * @return the {@link RepositoryInformation} for the given repository interface or {@literal null} there's no
+	 *         repository instance registered for the given interface.
+	 * @since 1.12
+	 */
+	public RepositoryInformation getRepositoryInformation(Class<?> repositoryInterface) {
+
+		for (RepositoryFactoryInformation<Object, Serializable> factoryInformation : repositoryFactoryInfos.values()) {
+
+			RepositoryInformation information = factoryInformation.getRepositoryInformation();
+
+			if (information.getRepositoryInterface().equals(repositoryInterface)) {
+				return information;
+			}
+		}
+
+		return null;
+	}
+
 	/**
 	 * Returns the {@link PersistentEntity} for the given domain class. Might return {@literal null} in case the module
 	 * storing the given domain class does not support the mapping subsystem.

src/test/java/org/springframework/data/repository/support/RepositoriesUnitTests.java

@@ -17,7 +17,7 @@
  */
 package org.springframework.data.repository.support;
 
-import static org.hamcrest.CoreMatchers.*;
+import static org.hamcrest.Matchers.*;
 import static org.junit.Assert.*;
 
 import java.io.Serializable;
@@ -139,6 +139,18 @@ public void discoversRepositoryForAlternativeDomainType() {
 		context.close();
 	}
 
+	/**
+	 * @see DATACMNS-794
+	 */
+	@Test
+	public void exposesRepositoryFactoryInformationForRepository() {
+
+		RepositoryInformation information = new Repositories(context).getRepositoryInformation(PersonRepository.class);
+
+		assertThat(information, is(notNullValue()));
+		assertThat(information.getRepositoryInterface(), is(typeCompatibleWith(PersonRepository.class)));
+	}
+
 	class Person {}
 
 	class Address {}