com.epam.training.storefront.forms.validation.PaymentDetailsValidator.java Source code

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Here is the source code for com.epam.training.storefront.forms.validation.PaymentDetailsValidator.java

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/*
 * [y] hybris Platform
 *
 * Copyright (c) 2000-2015 hybris AG
 * All rights reserved.
 *
 * This software is the confidential and proprietary information of hybris
 * ("Confidential Information"). You shall not disclose such Confidential
 * Information and shall use it only in accordance with the terms of the
 * license agreement you entered into with hybris.
 * 
 *  
 */
package com.epam.training.storefront.forms.validation;

import com.epam.training.storefront.forms.PaymentDetailsForm;

import java.util.Calendar;

import org.apache.commons.lang.StringUtils;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Component;
import org.springframework.validation.Errors;
import org.springframework.validation.ValidationUtils;
import org.springframework.validation.Validator;

@Component("paymentDetailsValidator")
public class PaymentDetailsValidator implements Validator {
    private static final Logger LOG = Logger.getLogger(PaymentDetailsValidator.class);

    @Override
    public boolean supports(final Class<?> aClass) {
        return PaymentDetailsForm.class.equals(aClass);
    }

    @Override
    public void validate(final Object object, final Errors errors) {
        final PaymentDetailsForm form = (PaymentDetailsForm) object;

        final Calendar start = parseDate(form.getStartMonth(), form.getStartYear());
        final Calendar expiration = parseDate(form.getExpiryMonth(), form.getExpiryYear());
        final Calendar current = Calendar.getInstance();

        if (start != null) {
            if (start.after(current)) {
                errors.rejectValue("startMonth", "payment.startDate.past.invalid");
            }

            if (expiration != null) {
                if (start.after(expiration)) {
                    errors.rejectValue("startMonth", "payment.startDate.invalid");
                }
            }
        }

        if (expiration != null) {
            if (expiration.before(current)) {
                errors.rejectValue("expiryMonth", "payment.expiryDate.future.invalid");
            }
        }

        final boolean editMode = StringUtils.isNotBlank(form.getPaymentId());
        if (editMode || Boolean.TRUE.equals(form.getNewBillingAddress())) {
            ValidationUtils.rejectIfEmptyOrWhitespace(errors, "billingAddress.firstName",
                    "address.firstName.invalid");
            ValidationUtils.rejectIfEmptyOrWhitespace(errors, "billingAddress.lastName",
                    "address.lastName.invalid");
            ValidationUtils.rejectIfEmptyOrWhitespace(errors, "billingAddress.line1", "address.line1.invalid");
            ValidationUtils.rejectIfEmptyOrWhitespace(errors, "billingAddress.townCity",
                    "address.townCity.invalid");
            ValidationUtils.rejectIfEmptyOrWhitespace(errors, "billingAddress.postcode",
                    "address.postcode.invalid");
            ValidationUtils.rejectIfEmptyOrWhitespace(errors, "billingAddress.countryIso",
                    "address.country.invalid");
        }
    }

    protected Calendar parseDate(final String month, final String year) {
        if (StringUtils.isNotBlank(month) && StringUtils.isNotBlank(year)) {
            final Integer yearInt = getIntegerForString(year);
            final Integer monthInt = getIntegerForString(month);

            if (yearInt != null && monthInt != null) {
                final Calendar date = getCalendarResetTime();
                date.set(Calendar.YEAR, yearInt.intValue());
                date.set(Calendar.MONTH, monthInt.intValue() - 1);
                date.set(Calendar.DAY_OF_MONTH, 1);
                return date;
            }
        }
        return null;
    }

    protected Calendar getCalendarResetTime() {
        final Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.HOUR_OF_DAY, 0);
        calendar.set(Calendar.MINUTE, 0);
        calendar.set(Calendar.SECOND, 0);
        calendar.set(Calendar.MILLISECOND, 0);
        return calendar;
    }

    /**
     * Common method to convert a String to an Integer.
     * 
     * @param value
     *           - the String value to be converted.
     * @return - an Integer object.
     */
    protected Integer getIntegerForString(final String value) {
        if (StringUtils.isNotEmpty(value)) {
            try {
                return Integer.valueOf(value);
            } catch (final Exception e) {
                LOG.warn(String.format("String value '%s' cannot be converted to Integer", value), e);
            }
        }

        return null;
    }
}