DATAREST-515 - RepositorySearchesResource now exposes domain type.

RepositorySearchesResource now exposes the domain type for whom the searches are listed to allow implementations of ResourceProcessor add links by type more easily.

spring-data-rest-webmvc/src/main/java/org/springframework/data/rest/webmvc/RepositorySearchController.java

@@ -144,7 +144,7 @@ class RepositorySearchController extends AbstractRepositoryRestController {
 			throw new ResourceNotFoundException();
 		}
 
-		RepositorySearchesResource result = new RepositorySearchesResource();
+		RepositorySearchesResource result = new RepositorySearchesResource(resourceInformation.getDomainType());
 		result.add(queryMethodLinks);
 
 		return result;

spring-data-rest-webmvc/src/main/java/org/springframework/data/rest/webmvc/RepositorySearchesResource.java

@@ -17,6 +17,7 @@ package org.springframework.data.rest.webmvc;
 
 import org.springframework.hateoas.ResourceProcessor;
 import org.springframework.hateoas.ResourceSupport;
+import org.springframework.util.Assert;
 
 /**
  * A custom {@link ResourceSupport} type to be able to write custom {@link ResourceProcessor}s to add additional links
@@ -24,4 +25,27 @@ import org.springframework.hateoas.ResourceSupport;
  * 
  * @author Oliver Gierke
  */
-public class RepositorySearchesResource extends ResourceSupport {}
+public class RepositorySearchesResource extends ResourceSupport {
+
+	private final Class<?> domainType;
+
+	/**
+	 * Creates a new {@link RepositorySearchesResource} for the given domain type.
+	 * 
+	 * @param domainType must not be {@literal null}.
+	 */
+	RepositorySearchesResource(Class<?> domainType) {
+
+		Assert.notNull(domainType, "Domain type must not be null!");
+		this.domainType = domainType;
+	}
+
+	/**
+	 * Returns the domain type for which the resource lists searches.
+	 * 
+	 * @return
+	 */
+	public Class<?> getDomainType() {
+		return domainType;
+	}
+}

spring-data-rest-webmvc/src/test/java/org/springframework/data/rest/webmvc/RepositorySearchControllerIntegrationTests.java

@@ -169,4 +169,15 @@ public class RepositorySearchControllerIntegrationTests extends AbstractControll
 
 		assertAllowHeaders(response, HttpMethod.GET);
 	}
+
+	/**
+	 * @see DATAREST-515
+	 */
+	@Test
+	public void repositorySearchResourceExposesDomainType() {
+
+		RepositorySearchesResource searches = controller.listSearches(getResourceInformation(Person.class));
+
+		assertThat(searches.getDomainType(), is(typeCompatibleWith(Person.class)));
+	}
 }

spring-data-rest-webmvc/src/test/java/org/springframework/data/rest/webmvc/RepositorySearchesResourceUnitTests.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright 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.data.rest.webmvc;
+
+import static org.hamcrest.Matchers.*;
+import static org.junit.Assert.*;
+
+import org.junit.Test;
+
+/**
+ * Unit tests for {@link RepositorySearchesResource}
+ * 
+ * @author Oliver Gierke
+ * @soundtrack Bakkushan - Gefahr (Bakkushan)
+ */
+public class RepositorySearchesResourceUnitTests {
+
+	/**
+	 * @see DATAREST-515
+	 */
+	@Test(expected = IllegalArgumentException.class)
+	public void rejectsNullDomainType() {
+		new RepositorySearchesResource(null);
+	}
+
+	/**
+	 * @see DATAREST-515
+	 */
+	@Test
+	public void returnsConfiguredDomainType() {
+		assertThat(new RepositorySearchesResource(String.class).getDomainType(), is(typeCompatibleWith(String.class)));
+	}
+}