Ajax Exception Interceptor

gistfile1.java

@Intercepts
public class AjaxExceptionInterceptor implements Interceptor {

    private final HttpServletRequest request;
    private final Result result;

    public AjaxExceptionInterceptor(HttpServletRequest request, Result result) {
        this.request = request;
        this.result = result;
    }

    public boolean accepts(ResourceMethod method) {
        return request.getHeader("accept").contains("application/json");
    }

    public void intercept(InterceptorStack stack, ResourceMethod method, Object resourceInstance) {
        try {
            stack.next(method, resourceInstance);
        } catch (Exception e) {
            result.use(Results.http()).sendError(500, e.getCause().getMessage());
        }
    }

}