Generate JHipster 9.3.0 baseline application

src/main/java/com/example/questionbank/web/rest/PublicUserResource.java

@@ -0,0 +1,61 @@
+package com.example.questionbank.web.rest;
+
+import com.example.questionbank.service.UserService;
+import com.example.questionbank.service.dto.UserDTO;
+import java.util.*;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.domain.Sort;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.servlet.support.ServletUriComponentsBuilder;
+import tech.jhipster.web.util.PaginationUtil;
+
+@RestController
+@RequestMapping("/api")
+public class PublicUserResource {
+
+    private static final List<String> ALLOWED_ORDERED_PROPERTIES = List.of(
+        "id",
+        "login",
+        "firstName",
+        "lastName",
+        "email",
+        "activated",
+        "langKey"
+    );
+
+    private static final Logger LOG = LoggerFactory.getLogger(PublicUserResource.class);
+
+    private final UserService userService;
+
+    public PublicUserResource(UserService userService) {
+        this.userService = userService;
+    }
+
+    /**
+     * {@code GET /users} : get all users with only public information - calling this method is allowed for anyone.
+     *
+     * @param pageable the pagination information.
+     * @return the {@link ResponseEntity} with status {@code 200 (OK)} and with body all users.
+     */
+    @GetMapping("/users")
+    public ResponseEntity<List<UserDTO>> getAllPublicUsers(@org.springdoc.core.annotations.ParameterObject Pageable pageable) {
+        LOG.debug("REST request to get all public User names");
+        if (!onlyContainsAllowedProperties(pageable)) {
+            return ResponseEntity.badRequest().build();
+        }
+
+        final Page<UserDTO> page = userService.getAllPublicUsers(pageable);
+        HttpHeaders headers = PaginationUtil.generatePaginationHttpHeaders(ServletUriComponentsBuilder.fromCurrentRequest(), page);
+        return new ResponseEntity<>(page.getContent(), headers, HttpStatus.OK);
+    }
+
+    private boolean onlyContainsAllowedProperties(Pageable pageable) {
+        return pageable.getSort().stream().map(Sort.Order::getProperty).allMatch(ALLOWED_ORDERED_PROPERTIES::contains);
+    }
+}