fix(sonar): simplify authentication response type

Author: gantoin

generators/spring-boot/templates/src/main/java/_package_/web/rest/AuthenticateController.java.ejs

@@ -117,15 +117,15 @@ public class AuthenticateController {
 <%_ } _%>
 
     /**
-     * {@code GET /authenticate} : check if the user is authenticated, and return its login.
+     * {@code GET /authenticate} : check if the user is authenticated, and return a boolean value.
      *
      * @param principal the authentication principal.
-     * @return the login if the user is authenticated.
+     * @return a boolean indicating if the user is authenticated.
      */
-    @GetMapping(value = "/authenticate", produces = MediaType.TEXT_PLAIN_VALUE)
-    public String isAuthenticated(Principal principal) {
+    @GetMapping(value = "/authenticate")
+    public Boolean isAuthenticated(Principal principal) {
         LOG.debug("REST request to check if the current user is authenticated");
-        return principal == null ? null : principal.getName();
+        return principal != null;
     }
 
     public String createToken(Authentication authentication, boolean rememberMe) {

generators/spring-boot/templates/src/test/java/_package_/web/rest/AccountResourceIT.java.ejs

@@ -174,16 +174,17 @@ class AccountResourceIT {
 <%_ if (reactive) { _%>
     void testNonAuthenticatedUser() {
         accountWebTestClient.get().uri("/api/authenticate")
-            .accept(MediaType.TEXT_PLAIN)
             .exchange()
-            .expectStatus().isOk()
-            .expectBody().isEmpty();
+            .expectStatus()
+            .isOk()
+            .expectBody(Boolean.class)
+            .isEqualTo(false);
 <%_ } else { _%>
     void testNonAuthenticatedUser() throws Exception {
         restAccountMockMvc
-            .perform(get("/api/authenticate").accept(MediaType.TEXT_PLAIN))
+            .perform(get("/api/authenticate"))
             .andExpect(status().isOk())
-            .andExpect(content().string(""));
+            .andExpect(content().string(Boolean.FALSE.toString()));
 <%_ } _%>
     }
 
@@ -192,17 +193,20 @@ class AccountResourceIT {
 <%_ if (reactive) { _%>
     void testAuthenticatedUser() {
         accountWebTestClient
-            .get().uri("/api/authenticate")
-            .accept(MediaType.TEXT_PLAIN)
+            .get()
+            .uri("/api/authenticate")
             .exchange()
-            .expectStatus().isOk()
-            .expectBody(String.class).isEqualTo(TEST_USER_LOGIN);
+            .expectStatus()
+            .isOk()
+            .expectBody(Boolean.class)
+            .isEqualTo(true);
 <%_ } else { _%>
     void testAuthenticatedUser() throws Exception {
         restAccountMockMvc
-            .perform(get("/api/authenticate").with(request -> request).accept(MediaType.TEXT_PLAIN))
+            .perform(get("/api/authenticate")
+            .with(request -> request))
             .andExpect(status().isOk())
-            .andExpect(content().string(TEST_USER_LOGIN));
+            .andExpect(content().string(Boolean.TRUE.toString()));
 <%_ } _%>
     }