Custom response for root request int the Spring REST HATEOAS with both RepositoryRestResource-s and regular controllers - spring

Question

Let's say I have two repositories:
#RepositoryRestResource(collectionResourceRel = "person", path = "person")
public interface PersonRepository extends PagingAndSortingRepository<Person, Long> {
List<Person> findByLastName(#Param("name") String name);
}
and
#RepositoryRestResource(collectionResourceRel = "person1", path = "person1")
public interface PersonRepository1 extends PagingAndSortingRepository<Person1, Long> {
List<Person1> findByLastName(#Param("name") String name);
}
with one regular controller:
#Controller
public class HelloController {
#RequestMapping("/hello")
#ResponseBody
public HttpEntity<Hello> hello(#RequestParam(value = "name", required = false, defaultValue = "World") String name) {
Hello hello = new Hello(String.format("Hello, %s!", name));
hello.add(linkTo(methodOn(HelloController.class).hello(name)).withSelfRel());
return new ResponseEntity<>(hello, HttpStatus.OK);
}
}
Now, a response for http://localhost:8080/ is:
{
"_links" : {
"person" : {
"href" : "http://localhost:8080/person{?page,size,sort}",
"templated" : true
},
"person1" : {
"href" : "http://localhost:8080/person1{?page,size,sort}",
"templated" : true
}
}
}
but I want to get something like this:
{
"_links" : {
"person" : {
"href" : "http://localhost:8080/person{?page,size,sort}",
"templated" : true
},
"person1" : {
"href" : "http://localhost:8080/person1{?page,size,sort}",
"templated" : true
},
"hello" : {
"href" : "http://localhost:8080/hello?name=World"
}
}
}

Answer 1

#Component
public class HelloResourceProcessor implements ResourceProcessor<RepositoryLinksResource> {
#Override
public RepositoryLinksResource process(RepositoryLinksResource resource) {
resource.add(ControllerLinkBuilder.linkTo(HelloController.class).withRel("hello"));
return resource;
}
}
based on
http://docs.spring.io/spring-data/rest/docs/current/reference/html/#customizing-sdr.customizing-json-output
How to add links to root resource in Spring Data REST?

Answer 2

You need to have a ResourceProcessory for your Person resource registered as a Bean. see https://stackoverflow.com/a/24660635/442773