Package springboot.bg.harisauto.common.exception

Class GlobalExceptionHandler

java.lang.Object

springboot.bg.harisauto.common.exception.GlobalExceptionHandler

@ControllerAdvice
public class GlobalExceptionHandler
extends Object

Global exception handler for the web layer.

Business exceptions are turned into a flash message on the page the user came from, so a wrong password or a duplicate email reads as a form error rather than a whitelabel 500 page.

Author:

Kristian Popov

Constructor Summary

Constructors

Constructor	Description
GlobalExceptionHandler()

Method Summary

Modifier and Type	Method	Description
org.springframework.web.servlet.ModelAndView	handleAccessDenied(org.springframework.security.access.AccessDeniedException e, jakarta.servlet.http.HttpServletRequest request)	Handles an attempt to read a resource that belongs to somebody else.
String	handleAccountExceptions(RuntimeException e, org.springframework.web.servlet.mvc.support.RedirectAttributes attributes)	Handles a failed password change or a duplicate email on the settings screen.
org.springframework.web.servlet.ModelAndView	handleMissingResource(Exception e, jakarta.servlet.http.HttpServletRequest request)	Keeps Spring's own routing failures as 404s.
org.springframework.web.servlet.ModelAndView	handleNotFound(RuntimeException e, jakarta.servlet.http.HttpServletRequest request)	Handles lookups for users, services and categories that do not exist.
org.springframework.web.servlet.ModelAndView	handleResponseStatus(org.springframework.web.server.ResponseStatusException e, jakarta.servlet.http.HttpServletRequest request)	Preserves the status carried by a ResponseStatusException.
org.springframework.web.servlet.ModelAndView	handleUnexpected(Exception e, jakarta.servlet.http.HttpServletRequest request)	Last-resort handler for anything not matched above.
String	handleVehicleExceptions(VehicleBusinessException e, org.springframework.web.servlet.mvc.support.RedirectAttributes attributes)	Handles vehicle-related exceptions.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

GlobalExceptionHandler

public GlobalExceptionHandler()

Method Details

handleVehicleExceptions

@ExceptionHandler(VehicleBusinessException.class)
public String handleVehicleExceptions(VehicleBusinessException e,
 org.springframework.web.servlet.mvc.support.RedirectAttributes attributes)

Handles vehicle-related exceptions.

Parameters:

e - - VehicleBusinessException

attributes - - RedirectAttributes

Returns:

String

handleAccountExceptions

@ExceptionHandler({UserPasswordDoesNotMatchException.class,UserEmailAlreadyExistsException.class})
public String handleAccountExceptions(RuntimeException e,
 org.springframework.web.servlet.mvc.support.RedirectAttributes attributes)

Handles a failed password change or a duplicate email on the settings screen.

Parameters:

e - The business exception.

attributes - Flash attributes for the redirect.

Returns:

Redirect back to the settings page.

handleNotFound

@ExceptionHandler({UserDoesNotExistException.class,ResourceNotFoundException.class,jakarta.persistence.EntityNotFoundException.class})
@ResponseStatus(NOT_FOUND)
public org.springframework.web.servlet.ModelAndView handleNotFound(RuntimeException e,
 jakarta.servlet.http.HttpServletRequest request)

Handles lookups for users, services and categories that do not exist.

Parameters:

e - The not-found exception.

request - The request that triggered it.

Returns:

The 404 view.

handleAccessDenied

@ExceptionHandler(org.springframework.security.access.AccessDeniedException.class)
@ResponseStatus(NOT_FOUND)
public org.springframework.web.servlet.ModelAndView handleAccessDenied(org.springframework.security.access.AccessDeniedException e,
 jakarta.servlet.http.HttpServletRequest request)

Handles an attempt to read a resource that belongs to somebody else.

Parameters:

e - The access-denied exception.

request - The request that triggered it.

Returns:

The 404 view, so the resource's existence is not disclosed.

handleMissingResource

@ExceptionHandler({org.springframework.web.servlet.resource.NoResourceFoundException.class,org.springframework.web.servlet.NoHandlerFoundException.class})
@ResponseStatus(NOT_FOUND)
public org.springframework.web.servlet.ModelAndView handleMissingResource(Exception e,
 jakarta.servlet.http.HttpServletRequest request)

Keeps Spring's own routing failures as 404s.

Without this they are swallowed by the catch-all below and reported as 500, so a missing page or static file would look like a server fault.

Parameters:

e - The routing exception.

request - The request that triggered it.

Returns:

The 404 view.

handleResponseStatus

@ExceptionHandler(org.springframework.web.server.ResponseStatusException.class)
public org.springframework.web.servlet.ModelAndView handleResponseStatus(org.springframework.web.server.ResponseStatusException e,
 jakarta.servlet.http.HttpServletRequest request)

Preserves the status carried by a ResponseStatusException.

Parameters:

e - The exception carrying its own status.

request - The request that triggered it.

Returns:

The error view, rendered with that status.

handleUnexpected

@ExceptionHandler(java.lang.Exception.class)
@ResponseStatus(INTERNAL_SERVER_ERROR)
public org.springframework.web.servlet.ModelAndView handleUnexpected(Exception e,
 jakarta.servlet.http.HttpServletRequest request)

Last-resort handler for anything not matched above.

The cause is logged with its stack trace, but the page shows only a generic message: exception text can carry identifiers, SQL or file paths that should not reach the browser.

Parameters:

e - The unhandled exception.

request - The request that triggered it.

Returns:

The generic error view.