update restdocs, move to spring-5

spring-5/src/main/java/com/baeldung/restdocs/CRUDController.java

@@ -0,0 +1,59 @@
+package com.baeldung.restdocs;
+
+import static org.springframework.hateoas.mvc.ControllerLinkBuilder.linkTo;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PatchMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/crud")
+public class CRUDController {
+
+    @GetMapping
+    public List<CrudInput> read(@RequestBody CrudInput crudInput) {
+        List<CrudInput> returnList = new ArrayList<CrudInput>();
+        returnList.add(crudInput);
+        return returnList;
+    }
+
+    @ResponseStatus(HttpStatus.CREATED)
+    @PostMapping
+    public HttpHeaders save(@RequestBody CrudInput crudInput) {
+        HttpHeaders httpHeaders = new HttpHeaders();
+        httpHeaders.setLocation(linkTo(CRUDController.class).slash(crudInput.getId()).toUri());
+        return httpHeaders;
+    }
+
+   @DeleteMapping(value = "/{id}")
+    @ResponseStatus(HttpStatus.OK)
+    HttpHeaders delete(@PathVariable("id") long id) {
+        return new HttpHeaders();
+    }
+
+    @PutMapping(value = "/{id}")
+    @ResponseStatus(HttpStatus.ACCEPTED)
+    void put(@PathVariable("id") long id, @RequestBody CrudInput crudInput) {
+
+    }
+
+    @PatchMapping(value = "/{id}")
+    public List<CrudInput> patch(@PathVariable("id") long id, @RequestBody CrudInput crudInput) {
+        List<CrudInput> returnList = new ArrayList<CrudInput>();
+        crudInput.setId(id);
+        returnList.add(crudInput);
+        return returnList;
+    }
+}