argos/dmp-backend/web/src/main/java/eu/eudat/controllers/controllerhandler/ControllerErrorHandler.java

package eu.eudat.controllers.controllerhandler;

import eu.eudat.core.logger.Logger;
import eu.eudat.core.models.exception.ApiExceptionLoggingModel;
import eu.eudat.models.data.helpers.responses.ResponseItem;
import eu.eudat.models.data.security.Principal;
import eu.eudat.types.ApiMessageCode;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.ResponseStatus;
import types.LoggingType;

import java.util.HashMap;
import java.util.Map;

/**
 * Created by ikalyvas on 6/12/2018.
 */
@ControllerAdvice
public class ControllerErrorHandler {

    private Logger logger;

    @Autowired
    public ControllerErrorHandler(Logger logger) {
        this.logger = logger;
    }

    @ExceptionHandler(NullPointerException.class)
    @ResponseStatus(HttpStatus.BAD_REQUEST)
    @ResponseBody
    public ResponseItem<Exception> processValidationError(Principal principal, Exception ex) throws Exception {
        ApiExceptionLoggingModel<Exception, Principal> apiExceptionLoggingModel = new ApiExceptionLoggingModel<>();
        apiExceptionLoggingModel.setCode(HttpStatus.BAD_REQUEST);
        apiExceptionLoggingModel.setUser(principal);
        Map<String, Exception> exceptionMap = new HashMap<>();
        exceptionMap.put("exception", ex);
        apiExceptionLoggingModel.setData(exceptionMap);
        apiExceptionLoggingModel.setMessage(ex.getMessage());
        apiExceptionLoggingModel.setType(LoggingType.ERROR);
        this.logger.error(apiExceptionLoggingModel);
        return new ResponseItem<Exception>().message(ex.getMessage()).status(ApiMessageCode.DEFAULT_ERROR_MESSAGE);
    }
}