1 package org.petify.image.exception;
2
3 import org.springframework.http.HttpHeaders;
4 import org.springframework.http.HttpStatus;
5 import org.springframework.http.HttpStatusCode;
6 import org.springframework.http.ProblemDetail;
7 import org.springframework.http.ResponseEntity;
8 import org.springframework.security.access.AccessDeniedException;
9 import org.springframework.web.bind.MethodArgumentNotValidException;
10 import org.springframework.web.bind.annotation.ExceptionHandler;
11 import org.springframework.web.bind.annotation.RestControllerAdvice;
12 import org.springframework.web.context.request.WebRequest;
13 import org.springframework.web.servlet.mvc.method.annotation.ResponseEntityExceptionHandler;
14
15 import java.time.Instant;
16 import java.util.HashMap;
17 import java.util.Map;
18
19 @RestControllerAdvice
20 public class GlobalExceptionHandler extends ResponseEntityExceptionHandler {
21
22 @ExceptionHandler(AccessDeniedException.class)
23 ProblemDetail handleAccessDeniedException(WebRequest request) {
24 ProblemDetail problemDetail = ProblemDetail.forStatus(HttpStatus.FORBIDDEN);
25 problemDetail.setTitle("Access Denied");
26 problemDetail.setDetail(request.getDescription(false));
27 problemDetail.setProperty("timestamp", Instant.now());
28 return problemDetail;
29 }
30
31 @ExceptionHandler(Exception.class)
32 ProblemDetail handleGenericException(Exception ex) {
33 ProblemDetail problemDetail = ProblemDetail.forStatus(HttpStatus.INTERNAL_SERVER_ERROR);
34 problemDetail.setTitle("Internal Server Error");
35 problemDetail.setDetail("An unexpected error occurred: " + ex.getMessage());
36 problemDetail.setProperty("timestamp", Instant.now());
37 return problemDetail;
38 }
39
40 @Override
41 protected ResponseEntity<Object> handleMethodArgumentNotValid(
42 MethodArgumentNotValidException ex,
43 HttpHeaders headers,
44 HttpStatusCode status,
45 WebRequest request) {
46
47 ProblemDetail problemDetail = ProblemDetail.forStatus(status);
48 problemDetail.setTitle("Validation Failed");
49
50 Map<String, String> errors = new HashMap<>();
51 ex.getBindingResult().getFieldErrors().forEach(error ->
52 errors.put(error.getField(), error.getDefaultMessage())
53 );
54
55 problemDetail.setProperty("errors", errors);
56
57 return new ResponseEntity<>(problemDetail, headers, status);
58 }
59
60 @ExceptionHandler(ImageNotFoundException.class)
61 ProblemDetail handleImageNotFound(ImageNotFoundException ex) {
62 ProblemDetail problemDetail = ProblemDetail.forStatus(HttpStatus.NOT_FOUND);
63 problemDetail.setTitle("Image Not Found");
64 problemDetail.setDetail(ex.getMessage());
65 problemDetail.setProperty("timestamp", Instant.now());
66 return problemDetail;
67 }
68
69 @ExceptionHandler(MaxImagesReachedException.class)
70 ProblemDetail handleMaxImagesReached(MaxImagesReachedException ex) {
71 ProblemDetail problemDetail = ProblemDetail.forStatus(HttpStatus.CONFLICT);
72 problemDetail.setTitle("Max Images Reached");
73 problemDetail.setDetail(ex.getMessage());
74 problemDetail.setProperty("timestamp", Instant.now());
75 return problemDetail;
76 }
77 }