private void doFilter(HttpServletRequest request, HttpServletResponse response, FilterChain chain)
throws IOException, ServletException {
ErrorWrapperResponse wrapped = new ErrorWrapperResponse(response);
try {
chain.doFilter(request, wrapped);
int status = wrapped.getStatus();
if (status >= 400) {
handleErrorStatus(request, response, status, wrapped.getMessage());
}
} catch (Throwable ex) {
handleException(request, response, wrapped, ex);
}
}
private void handleException(
HttpServletRequest request,
HttpServletResponse response,
ErrorWrapperResponse wrapped,
Throwable ex)
throws IOException, ServletException {
Class<?> type = ex.getClass();
String errorPath = getErrorPath(type);
if (errorPath == null) {
rethrow(ex);
return;
}
setErrorAttributes(request, 500, ex.getMessage());
request.setAttribute(ERROR_EXCEPTION, ex);
request.setAttribute(ERROR_EXCEPTION_TYPE, type.getName());
wrapped.sendError(500, ex.getMessage());
request.getRequestDispatcher(errorPath).forward(request, response);
}
