ru.trett.cis.validators.DeviceModelValidator.java Source code

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Here is the source code for ru.trett.cis.validators.DeviceModelValidator.java

Source

/*
 *     CIS - cool inventory system
 *
 *     Copyright  2016 Roman Tretyakov <roman@trett.ru>
 *
 *     ********************************************************************
 *
 *     CIS is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 *
 *     Foobar is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 *
 *     You should have received a copy of the GNU General Public License
 *     along with CIS.  If not, see <http://www.gnu.org/licenses/>.
 */

package ru.trett.cis.validators;

import org.springframework.binding.message.MessageBuilder;
import org.springframework.binding.validation.ValidationContext;
import org.springframework.stereotype.Component;
import org.springframework.validation.Errors;
import org.springframework.validation.ValidationUtils;
import org.springframework.validation.Validator;
import org.springframework.webflow.execution.RequestContext;
import org.springframework.webflow.execution.RequestContextHolder;
import ru.trett.cis.interfaces.InventoryService;
import ru.trett.cis.models.DeviceModel;

import javax.inject.Inject;

@Component
public class DeviceModelValidator implements Validator {

    private final InventoryService inventoryService;

    @Inject
    public DeviceModelValidator(InventoryService inventoryService) {
        this.inventoryService = inventoryService;
    }

    public boolean supports(Class<?> aClass) {
        return DeviceModel.class.isAssignableFrom(aClass);
    }

    public void validate(Object o, Errors errors) {
        ValidationUtils.rejectIfEmpty(errors, "deviceBrand.brand", "not.empty");
        ValidationUtils.rejectIfEmpty(errors, "deviceType.type", "not.empty");
    }

    public void validateModel(DeviceModel deviceModel, ValidationContext context) {
        RequestContext requestContext = RequestContextHolder.getRequestContext();
        Boolean exists = Boolean
                .valueOf(requestContext.getExternalContext().getRequestParameterMap().get("exists"));

        DeviceModel dm = inventoryService.getModelByTypeAndBrandAndModel(deviceModel.getDeviceType().getType(),
                deviceModel.getDeviceBrand().getBrand(), deviceModel.getModel());

        if (dm != null && !exists)
            context.getMessageContext().addMessage(new MessageBuilder().error().source("model").code("not.unique")
                    .defaultText("Already present").build());
    }
}