Java tutorial
/* * eGov SmartCity eGovernance suite aims to improve the internal efficiency,transparency, * accountability and the service delivery of the government organizations. * * Copyright (C) 2018 eGovernments Foundation * * The updated version of eGov suite of products as by eGovernments Foundation * is available at http://www.egovernments.org * * This program 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 * any later version. * * This program 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 this program. If not, see http://www.gnu.org/licenses/ or * http://www.gnu.org/licenses/gpl.html . * * In addition to the terms of the GPL license to be adhered to in using this * program, the following additional terms are to be complied with: * * 1) All versions of this program, verbatim or modified must carry this * Legal Notice. * Further, all user interfaces, including but not limited to citizen facing interfaces, * Urban Local Bodies interfaces, dashboards, mobile applications, of the program and any * derived works should carry eGovernments Foundation logo on the top right corner. * * For the logo, please refer http://egovernments.org/html/logo/egov_logo.png. * For any further queries on attribution, including queries on brand guidelines, * please contact contact@egovernments.org * * 2) Any misrepresentation of the origin of the material is prohibited. It * is required that all modified versions of this material be marked in * reasonable ways as different from the original version. * * 3) This license does not grant any rights to any user of the program * with regards to rights under trademark law for use of the trade names * or trademarks of eGovernments Foundation. * * In case of any queries, you can reach eGovernments Foundation at contact@egovernments.org. * */ package org.egov.tl.service; import org.egov.commons.Installment; import org.egov.infra.utils.DateUtils; import org.egov.tl.entity.LicenseAppType; import org.egov.tl.entity.PenaltyRates; import org.egov.tl.entity.TradeLicense; import org.egov.tl.repository.PenaltyRatesRepository; import org.joda.time.LocalDate; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import java.math.BigDecimal; import java.util.Date; import java.util.List; import java.util.Optional; import static java.math.BigDecimal.ZERO; @Service @Transactional(readOnly = true) public class PenaltyRatesService { @Autowired private PenaltyRatesRepository penaltyRatesRepository; public PenaltyRates findByDaysAndLicenseAppType(Integer days, LicenseAppType licenseAppType) { return penaltyRatesRepository.findByDaysAndLicenseAppType(Long.valueOf(days), licenseAppType); } public PenaltyRates findOne(Long id) { return penaltyRatesRepository.findOne(id); } public Long getMinFromRange(LicenseAppType licenseAppType) { return penaltyRatesRepository.findTopByLicenseAppTypeOrderByFromRangeAsc(licenseAppType).getFromRange(); } public Long getMaxToRange(LicenseAppType licenseAppType) { return penaltyRatesRepository.findTopByLicenseAppTypeOrderByToRangeDesc(licenseAppType).getToRange(); } @Transactional public List<PenaltyRates> create(List<PenaltyRates> penaltyRates) { return penaltyRatesRepository.save(penaltyRates); } public List<PenaltyRates> getPenaltyRatesByLicenseAppType(LicenseAppType licenseAppType) { return licenseAppType == null ? penaltyRatesRepository.findAll() : penaltyRatesRepository.findByLicenseAppTypeOrderByIdAsc(licenseAppType); } @Transactional public void delete(PenaltyRates penaltyRates) { penaltyRatesRepository.delete(penaltyRates); } public BigDecimal calculatePenalty(TradeLicense license, Date fromDate, Date toDate, BigDecimal amount) { if (fromDate != null) { int paymentDueDays = DateUtils.daysBetween(fromDate, toDate); PenaltyRates penaltyRates = findByDaysAndLicenseAppType(paymentDueDays, license.getLicenseAppType()); if (penaltyRates == null) { return BigDecimal.ZERO; } return amount.multiply(BigDecimal.valueOf(penaltyRates.getRate() / 100)); } return BigDecimal.ZERO; } public Date getPenaltyDate(LicenseAppType licenseAppType, Installment installment) { Optional<PenaltyRates> penaltyRates = getPenaltyRatesByLicenseAppType(licenseAppType).stream() .filter(penaltyRate -> penaltyRate.getRate().doubleValue() <= ZERO.doubleValue()).findFirst(); return LocalDate.fromDateFields(installment.getFromDate()) .plusDays(penaltyRates.isPresent() ? penaltyRates.get().getToRange().intValue() : ZERO.intValue()) .toDate(); } }