Spring @ControllerAdvice to handle exceptions

gistfile1.java

package com.shootr.api.web.rest.exception;

import java.util.ArrayList;
import java.util.List;

import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.context.request.WebRequest;

import com.shootr.api.service.ds.DataServicesException;

@ControllerAdvice
public class RestExceptionHandler {
	@ExceptionHandler({InvalidRequestException.class})
	protected ResponseEntity<Object> handleInvalidRequest(RuntimeException e, WebRequest request) {
		InvalidRequestException invalidRequestException = (InvalidRequestException) e;
		List<FieldErrorResource> fieldErrorResources = new ArrayList<>();

		List<FieldError> fieldErrors = invalidRequestException.getErrors().getFieldErrors();
		for (FieldError fieldError : fieldErrors) {
			FieldErrorResource fieldErrorResource = new FieldErrorResource();
			fieldErrorResource.setField(fieldError.getField());
			fieldErrorResource.setMessage(fieldError.getDefaultMessage());
			fieldErrorResources.add(fieldErrorResource);
		}

		ErrorResource error = new ErrorResource("InvalidRequest", invalidRequestException.getMessage());
		error.setFieldErrors(fieldErrorResources);

		return new ResponseEntity<Object>(error, HttpStatus.UNPROCESSABLE_ENTITY);
	}

	@ExceptionHandler({UnauthorizedRequestException.class})
	protected ResponseEntity<Object> handleUnauthorizedRequestException(UnauthorizedRequestException e, WebRequest request) {
		ErrorResource error = new ErrorResource("403", e.getMessage());
		return new ResponseEntity<Object>(error, HttpStatus.FORBIDDEN);
	}

	@ExceptionHandler({DataServicesException.class})
	protected ResponseEntity<Object> handleDataServicesException(DataServicesException e, WebRequest request) {
		String code = (e.getShootrError() != null) ? e.getShootrError().getErrorCode() : "0000";
		ErrorResource error = new ErrorResource(code, e.getMessage());
		return new ResponseEntity<Object>(error, HttpStatus.UNPROCESSABLE_ENTITY);
	}
}