From ad2496374c884f46caa9c59b002a0f329e71b091 Mon Sep 17 00:00:00 2001
From: Jon Brisbin <jon@jbrisbin.com>
Date: Thu, 25 Apr 2013 15:07:21 -0500
Subject: [PATCH] #92 Add special Resource subclass that is returned by
 listRepositories method so that ResourceProcessors can easily add links to
 it.

---
 .../rest/webmvc/RepositoryController.java     | 35 +++++++++----------
 .../rest/webmvc/RepositoryLinksResource.java  | 16 +++++++++
 2 files changed, 32 insertions(+), 19 deletions(-)
 create mode 100644 spring-data-rest-webmvc/src/main/java/org/springframework/data/rest/webmvc/RepositoryLinksResource.java

diff --git a/spring-data-rest-webmvc/src/main/java/org/springframework/data/rest/webmvc/RepositoryController.java b/spring-data-rest-webmvc/src/main/java/org/springframework/data/rest/webmvc/RepositoryController.java
index 877226c27..c09b24e65 100644
--- a/spring-data-rest-webmvc/src/main/java/org/springframework/data/rest/webmvc/RepositoryController.java
+++ b/spring-data-rest-webmvc/src/main/java/org/springframework/data/rest/webmvc/RepositoryController.java
@@ -1,8 +1,5 @@
 package org.springframework.data.rest.webmvc;
 
-import static java.util.Collections.*;
-import static org.springframework.data.rest.repository.support.ResourceMappingUtils.*;
-
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.core.convert.ConversionService;
 import org.springframework.data.repository.support.DomainClassConverter;
@@ -10,12 +7,13 @@ import org.springframework.data.repository.support.Repositories;
 import org.springframework.data.rest.config.RepositoryRestConfiguration;
 import org.springframework.data.rest.config.ResourceMapping;
 import org.springframework.hateoas.EntityLinks;
-import org.springframework.hateoas.Resource;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.ResponseBody;
 
+import static org.springframework.data.rest.repository.support.ResourceMappingUtils.getResourceMapping;
+
 /**
  * @author Jon Brisbin
  */
@@ -25,15 +23,15 @@ public class RepositoryController extends AbstractRepositoryRestController {
 
 	@Autowired
 	public RepositoryController(Repositories repositories,
-	                            RepositoryRestConfiguration config,
-	                            DomainClassConverter domainClassConverter,
-	                            ConversionService conversionService,
-	                            EntityLinks entityLinks) {
+															RepositoryRestConfiguration config,
+															DomainClassConverter domainClassConverter,
+															ConversionService conversionService,
+															EntityLinks entityLinks) {
 		super(repositories,
-		      config,
-		      domainClassConverter,
-		      conversionService,
-		      entityLinks);
+					config,
+					domainClassConverter,
+					conversionService,
+					entityLinks);
 	}
 
 	@RequestMapping(
@@ -44,16 +42,15 @@ public class RepositoryController extends AbstractRepositoryRestController {
 			}
 	)
 	@ResponseBody
-	public Resource<?> listRepositories()
-			throws ResourceNotFoundException {
-		Resource<?> links = new Resource<Object>(emptyList());
-		for(Class<?> domainType : repositories) {
+	public RepositoryLinksResource listRepositories() throws ResourceNotFoundException {
+		RepositoryLinksResource resource = new RepositoryLinksResource();
+		for (Class<?> domainType : repositories) {
 			ResourceMapping repoMapping = getResourceMapping(config, repositories.getRepositoryInformationFor(domainType));
-			if(repoMapping.isExported()) {
-				links.add(entityLinks.linkToCollectionResource(domainType));
+			if (repoMapping.isExported()) {
+				resource.add(entityLinks.linkToCollectionResource(domainType));
 			}
 		}
-		return links;
+		return resource;
 	}
 
 }
diff --git a/spring-data-rest-webmvc/src/main/java/org/springframework/data/rest/webmvc/RepositoryLinksResource.java b/spring-data-rest-webmvc/src/main/java/org/springframework/data/rest/webmvc/RepositoryLinksResource.java
new file mode 100644
index 000000000..8c1101e6e
--- /dev/null
+++ b/spring-data-rest-webmvc/src/main/java/org/springframework/data/rest/webmvc/RepositoryLinksResource.java
@@ -0,0 +1,16 @@
+package org.springframework.data.rest.webmvc;
+
+import org.springframework.hateoas.Resources;
+
+import java.util.Collections;
+
+/**
+ * @author Jon Brisbin
+ */
+public class RepositoryLinksResource extends Resources<Object> {
+
+	public RepositoryLinksResource() {
+		super(Collections.emptyList());
+	}
+
+}