Updated registration controller

chatto/src/main/java/org/ros/chatto/controller/RegistrationController.java

@@ -28,16 +28,19 @@ import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+
 @Controller
+@RequiredArgsConstructor
+@Slf4j
 public class RegistrationController {
 
 	@Autowired
-	private UserService userService;
+	private final UserService userService;
 
 	@Autowired
-	private CaptchaService captchaService;
-
-	private final Logger logger = LoggerFactory.getLogger(this.getClass());
+	private final CaptchaService captchaService;
 
 	private final Map<Long, String> captchaMap = new ConcurrentHashMap<>();
 
@@ -46,7 +49,7 @@ public class RegistrationController {
 		UserRegistrationDTO userRegistrationDTO = new UserRegistrationDTO();
 		String captchaText = captchaService.getRandomText();
 		userRegistrationDTO.setCaptchaText(captchaText);
-		logger.debug("captcha text = {}", captchaText);
+		log.debug("captcha text = {}", captchaText);
 		Long captchaID = ThreadLocalRandom.current().nextLong();
 		userRegistrationDTO.setCaptchaID(captchaID);
 		captchaMap.put(captchaID, captchaText);
@@ -59,28 +62,33 @@ public class RegistrationController {
 			@ModelAttribute("userRegistrationDTO") @Valid UserRegistrationDTO userRegistrationDTO,
 			BindingResult bindingResult) {
 		if (bindingResult.hasErrors()) {
-			logger.warn("Registration input has errors!");
+			log.warn("Registration input has errors!");
 			return "registration";
 		}
-		logger.debug("Captcha text from user input = {}", userRegistrationDTO.getCaptchaInput());
-		logger.debug("Captcha text from captcha map = {}", captchaMap.get(userRegistrationDTO.getCaptchaID()));
-		if (userRegistrationDTO.getCaptchaInput().equals(captchaMap.get(userRegistrationDTO.getCaptchaID()))) {
-			logger.info("Registration captcha equal success");
+		log.debug("Captcha text from user input = {}",
+				userRegistrationDTO.getCaptchaInput());
+		log.debug("Captcha text from captcha map = {}",
+				captchaMap.get(userRegistrationDTO.getCaptchaID()));
+		if (userRegistrationDTO.getCaptchaInput()
+				.equals(captchaMap.get(userRegistrationDTO.getCaptchaID()))) {
+			log.info("Registration captcha equal success");
 			userService.createUser(userRegistrationDTO);
 			return "redirect:registration?success";
 		} else {
-			logger.warn("Registration captcha equal fail");
+			log.warn("Registration captcha equal fail");
 			return "redirect:registration?error";
 		}
 	}
 
 	@GetMapping(value = "/img/captcha/{image_id}", produces = MediaType.IMAGE_PNG_VALUE)
-	public ResponseEntity<byte[]> getImage(@PathVariable("image_id") Long imageId) throws IOException {
+	public ResponseEntity<byte[]> getImage(
+			@PathVariable("image_id") Long imageId) throws IOException {
 
 		final String captchaText = captchaMap.get(imageId);
 		final HttpHeaders headers = new HttpHeaders();
 		headers.setContentType(MediaType.IMAGE_PNG);
-		BufferedImage captchaBufferedImage = captchaService.createCaptchaImage(captchaText);
+		BufferedImage captchaBufferedImage = captchaService
+				.createCaptchaImage(captchaText);
 
 		ByteArrayOutputStream baos = new ByteArrayOutputStream();
 		ImageIO.write(captchaBufferedImage, "png", baos);