| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.fineract.portfolio.loanaccount.service.reamortization; |
| |
| import static org.apache.fineract.infrastructure.core.service.DateUtils.getBusinessLocalDate; |
| |
| import java.util.ArrayList; |
| import java.util.Comparator; |
| import java.util.List; |
| import java.util.Optional; |
| import org.apache.fineract.infrastructure.core.api.JsonCommand; |
| import org.apache.fineract.infrastructure.core.data.ApiParameterError; |
| import org.apache.fineract.infrastructure.core.data.DataValidatorBuilder; |
| import org.apache.fineract.infrastructure.core.exception.GeneralPlatformDomainRuleException; |
| import org.apache.fineract.infrastructure.core.exception.PlatformApiDataValidationException; |
| import org.apache.fineract.infrastructure.core.service.DateUtils; |
| import org.apache.fineract.portfolio.loanaccount.api.LoanReAmortizationApiConstants; |
| import org.apache.fineract.portfolio.loanaccount.domain.Loan; |
| import org.apache.fineract.portfolio.loanaccount.domain.LoanTransaction; |
| import org.apache.fineract.portfolio.loanaccount.domain.transactionprocessor.impl.AdvancedPaymentScheduleTransactionProcessor; |
| import org.apache.fineract.portfolio.loanaccount.domain.transactionprocessor.impl.ChargeOrTransaction; |
| import org.apache.fineract.portfolio.loanaccount.loanschedule.domain.LoanScheduleType; |
| import org.springframework.stereotype.Component; |
| |
| @Component |
| public class LoanReAmortizationValidator { |
| |
| public void validateReAmortize(Loan loan, JsonCommand command) { |
| validateReAmortizeRequest(command); |
| validateReAmortizeBusinessRules(loan); |
| } |
| |
| private void validateReAmortizeRequest(JsonCommand command) { |
| List<ApiParameterError> dataValidationErrors = new ArrayList<>(); |
| DataValidatorBuilder baseDataValidator = new DataValidatorBuilder(dataValidationErrors).resource("loan.reAmortization"); |
| |
| String externalId = command.stringValueOfParameterNamedAllowingNull(LoanReAmortizationApiConstants.externalIdParameterName); |
| baseDataValidator.reset().parameter(LoanReAmortizationApiConstants.externalIdParameterName).ignoreIfNull().value(externalId) |
| .notExceedingLengthOf(100); |
| |
| throwExceptionIfValidationErrorsExist(dataValidationErrors); |
| } |
| |
| private void validateReAmortizeBusinessRules(Loan loan) { |
| // validate reamortization shouldn't happen after maturity |
| if (DateUtils.isAfter(getBusinessLocalDate(), loan.getMaturityDate())) { |
| throw new GeneralPlatformDomainRuleException("error.msg.loan.reamortize.cannot.be.submitted.after.maturity", |
| "Loan cannot be re-amortized after maturity", loan.getId()); |
| } |
| |
| // validate reamortization is only available for progressive schedule & advanced payment allocation |
| LoanScheduleType loanScheduleType = LoanScheduleType.valueOf(loan.getLoanProductRelatedDetail().getLoanScheduleType().name()); |
| boolean isProgressiveSchedule = LoanScheduleType.PROGRESSIVE.equals(loanScheduleType); |
| |
| String transactionProcessingStrategyCode = loan.getTransactionProcessingStrategyCode(); |
| boolean isAdvancedPaymentSchedule = AdvancedPaymentScheduleTransactionProcessor.ADVANCED_PAYMENT_ALLOCATION_STRATEGY |
| .equals(transactionProcessingStrategyCode); |
| |
| if (!(isProgressiveSchedule && isAdvancedPaymentSchedule)) { |
| throw new GeneralPlatformDomainRuleException("error.msg.loan.reamortize.supported.only.for.progressive.loan.schedule.type", |
| "Loan reamortization is only available for progressive repayment schedule and Advanced payment allocation strategy", |
| loan.getId()); |
| } |
| |
| // validate reamortization is only available for non-interest bearing loans |
| if (loan.isInterestBearing()) { |
| throw new GeneralPlatformDomainRuleException("error.msg.loan.reamortize.supported.only.for.non.interest.loans", |
| "Loan reamortization is only available for non-interest bearing loans", loan.getId()); |
| } |
| |
| // validate reamortization is only done on an active loan |
| if (!loan.getStatus().isActive()) { |
| throw new GeneralPlatformDomainRuleException("error.msg.loan.reamortize.supported.only.for.active.loans", |
| "Loan reamortization can only be done on active loans", loan.getId()); |
| } |
| |
| // validate if there's already a re-amortization transaction for today |
| boolean isReAmortizationTransactionForTodayPresent = loan.getLoanTransactions().stream() |
| .anyMatch(tx -> tx.getTypeOf().isReAmortize() && tx.getTransactionDate().equals(getBusinessLocalDate())); |
| if (isReAmortizationTransactionForTodayPresent) { |
| throw new GeneralPlatformDomainRuleException("error.msg.loan.reamortize.reamortize.transaction.already.present.for.today", |
| "Loan reamortization can only be done once a day. There has already been a reamortization done for today", |
| loan.getId()); |
| } |
| } |
| |
| public void validateUndoReAmortize(Loan loan, JsonCommand command) { |
| validateUndoReAmortizeBusinessRules(loan); |
| } |
| |
| private void validateUndoReAmortizeBusinessRules(Loan loan) { |
| // validate if there's a reamortization transaction already |
| Optional<LoanTransaction> optionalReAmortizationTx = loan.getLoanTransactions().stream().filter(tx -> tx.getTypeOf().isReAmortize()) |
| .min(Comparator.comparing(LoanTransaction::getTransactionDate)); |
| if (optionalReAmortizationTx.isEmpty()) { |
| throw new GeneralPlatformDomainRuleException("error.msg.loan.reamortize.reamortization.transaction.missing", |
| "Undoing a reamortization can only be done if there was a reamortization already", loan.getId()); |
| } |
| |
| // validate if there's no payment between the reamortization and today |
| boolean repaymentExistsAfterReAmortization = loan.getLoanTransactions().stream() |
| .anyMatch(tx -> tx.getTypeOf().isRepaymentType() && transactionHappenedAfterOther(tx, optionalReAmortizationTx.get())); |
| if (repaymentExistsAfterReAmortization) { |
| throw new GeneralPlatformDomainRuleException("error.msg.loan.reamortize.repayment.exists.after.reamortization", |
| "Undoing a reamortization can only be done if there hasn't been any repayment afterwards", loan.getId()); |
| } |
| } |
| |
| private void throwExceptionIfValidationErrorsExist(List<ApiParameterError> dataValidationErrors) { |
| if (!dataValidationErrors.isEmpty()) { |
| throw new PlatformApiDataValidationException("validation.msg.validation.errors.exist", "Validation errors exist.", |
| dataValidationErrors); |
| } |
| } |
| |
| private boolean transactionHappenedAfterOther(LoanTransaction transaction, LoanTransaction otherTransaction) { |
| return new ChargeOrTransaction(transaction).compareTo(new ChargeOrTransaction(otherTransaction)) > 0; |
| } |
| } |