FINERACT-2114: Reschedule validations enhancement
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Adam Saghy
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/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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package org.apache.fineract.portfolio.loanaccount.rescheduleloan.data;
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import static org.apache.fineract.portfolio.loanaccount.rescheduleloan.data.LoanRescheduleRequestDataValidatorImpl.APPROVE_REQUEST_DATA_PARAMETERS;
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import static org.apache.fineract.portfolio.loanaccount.rescheduleloan.data.LoanRescheduleRequestDataValidatorImpl.CREATE_REQUEST_DATA_PARAMETERS;
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import static org.apache.fineract.portfolio.loanaccount.rescheduleloan.data.LoanRescheduleRequestDataValidatorImpl.validateAndRetrieveAdjustedDate;
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import static org.apache.fineract.portfolio.loanaccount.rescheduleloan.data.LoanRescheduleRequestDataValidatorImpl.validateAndRetrieveRescheduleFromDate;
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import static org.apache.fineract.portfolio.loanaccount.rescheduleloan.data.LoanRescheduleRequestDataValidatorImpl.validateApprovalDate;
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import static org.apache.fineract.portfolio.loanaccount.rescheduleloan.data.LoanRescheduleRequestDataValidatorImpl.validateForOverdueCharges;
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import static org.apache.fineract.portfolio.loanaccount.rescheduleloan.data.LoanRescheduleRequestDataValidatorImpl.validateInterestRate;
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import static org.apache.fineract.portfolio.loanaccount.rescheduleloan.data.LoanRescheduleRequestDataValidatorImpl.validateLoanIsActive;
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import static org.apache.fineract.portfolio.loanaccount.rescheduleloan.data.LoanRescheduleRequestDataValidatorImpl.validateRescheduleReasonComment;
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import static org.apache.fineract.portfolio.loanaccount.rescheduleloan.data.LoanRescheduleRequestDataValidatorImpl.validateRescheduleReasonId;
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import static org.apache.fineract.portfolio.loanaccount.rescheduleloan.data.LoanRescheduleRequestDataValidatorImpl.validateRescheduleRequestStatus;
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import static org.apache.fineract.portfolio.loanaccount.rescheduleloan.data.LoanRescheduleRequestDataValidatorImpl.validateReschedulingInstallment;
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import static org.apache.fineract.portfolio.loanaccount.rescheduleloan.data.LoanRescheduleRequestDataValidatorImpl.validateSubmittedOnDate;
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import static org.apache.fineract.portfolio.loanaccount.rescheduleloan.data.LoanRescheduleRequestDataValidatorImpl.validateSupportedParameters;
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import com.google.gson.JsonElement;
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import jakarta.persistence.criteria.Predicate;
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import java.math.BigDecimal;
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import java.time.LocalDate;
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import java.util.ArrayList;
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import java.util.List;
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import lombok.AllArgsConstructor;
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import org.apache.commons.lang3.StringUtils;
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import org.apache.fineract.infrastructure.core.api.JsonCommand;
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import org.apache.fineract.infrastructure.core.data.ApiParameterError;
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import org.apache.fineract.infrastructure.core.data.DataValidatorBuilder;
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import org.apache.fineract.infrastructure.core.exception.GeneralPlatformDomainRuleException;
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import org.apache.fineract.infrastructure.core.exception.PlatformApiDataValidationException;
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import org.apache.fineract.infrastructure.core.serialization.FromJsonHelper;
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import org.apache.fineract.infrastructure.core.service.DateUtils;
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import org.apache.fineract.portfolio.loanaccount.domain.Loan;
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import org.apache.fineract.portfolio.loanaccount.domain.LoanRepaymentScheduleInstallment;
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import org.apache.fineract.portfolio.loanaccount.domain.LoanStatus;
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import org.apache.fineract.portfolio.loanaccount.rescheduleloan.RescheduleLoansApiConstants;
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import org.apache.fineract.portfolio.loanaccount.rescheduleloan.domain.LoanRescheduleRequest;
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import org.apache.fineract.portfolio.loanaccount.rescheduleloan.domain.LoanRescheduleRequestRepository;
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import org.springframework.stereotype.Component;
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@Component("progressiveLoanRescheduleRequestDataValidatorImpl")
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@AllArgsConstructor
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public class ProgressiveLoanRescheduleRequestDataValidator implements LoanRescheduleRequestDataValidator {
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private final FromJsonHelper fromJsonHelper;
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private final LoanRescheduleRequestRepository loanRescheduleRequestRepository;
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@Override
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public void validateForCreateAction(JsonCommand jsonCommand, Loan loan) {
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validateSupportedParameters(jsonCommand, CREATE_REQUEST_DATA_PARAMETERS);
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final List<ApiParameterError> dataValidationErrors = new ArrayList<>();
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final DataValidatorBuilder dataValidatorBuilder = new DataValidatorBuilder(dataValidationErrors)
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.resource(StringUtils.lowerCase(RescheduleLoansApiConstants.ENTITY_NAME));
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final JsonElement jsonElement = jsonCommand.parsedJson();
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validateLoanIsActive(loan, dataValidatorBuilder);
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validateSubmittedOnDate(fromJsonHelper, loan, jsonElement, dataValidatorBuilder);
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final LocalDate rescheduleFromDate = validateAndRetrieveRescheduleFromDate(fromJsonHelper, jsonElement, dataValidatorBuilder);
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validateRescheduleReasonId(fromJsonHelper, jsonElement, dataValidatorBuilder);
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validateRescheduleReasonComment(fromJsonHelper, jsonElement, dataValidatorBuilder);
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LocalDate adjustedDueDate = validateAndRetrieveAdjustedDate(fromJsonHelper, jsonElement, rescheduleFromDate, dataValidatorBuilder);
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BigDecimal interestRate = validateInterestRate(fromJsonHelper, jsonElement, dataValidatorBuilder);
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validateUnsupportedParams(jsonElement, dataValidatorBuilder);
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boolean hasInterestRateChange = interestRate != null;
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boolean hasAdjustDueDateChange = adjustedDueDate != null;
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if (hasInterestRateChange && hasAdjustDueDateChange) {
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dataValidatorBuilder.reset().parameter(RescheduleLoansApiConstants.adjustedDueDateParamName).failWithCode(
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RescheduleLoansApiConstants.rescheduleMultipleOperationsNotSupportedErrorCode,
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"Only one operation is supported at a time during Loan Rescheduling");
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}
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final LocalDate businessDate = DateUtils.getBusinessLocalDate();
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if (rescheduleFromDate != null) {
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if (hasInterestRateChange && !rescheduleFromDate.isAfter(businessDate)) {
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dataValidatorBuilder.reset().parameter(RescheduleLoansApiConstants.rescheduleFromDateParamName).failWithCode(
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"loan.reschedule.interest.rate.change.reschedule.from.date.should.be.in.future",
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"Loan Reschedule From date should be in the future.");
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}
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if (hasInterestRateChange) {
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validateInterestRateChangeRescheduleFromDate(loan, rescheduleFromDate);
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}
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}
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LoanRepaymentScheduleInstallment installment;
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if (hasInterestRateChange) {
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installment = loan.getRelatedRepaymentScheduleInstallment(rescheduleFromDate);
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} else {
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installment = loan.getRepaymentScheduleInstallment(rescheduleFromDate);
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}
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validateReschedulingInstallment(dataValidatorBuilder, installment);
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validateForOverdueCharges(dataValidatorBuilder, loan, installment);
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if (!dataValidationErrors.isEmpty()) {
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throw new PlatformApiDataValidationException(dataValidationErrors);
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}
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}
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private void validateUnsupportedParams(JsonElement jsonElement, DataValidatorBuilder dataValidatorBuilder) {
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final var unsupportedFields = List.of(RescheduleLoansApiConstants.graceOnPrincipalParamName, //
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RescheduleLoansApiConstants.graceOnInterestParamName, //
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RescheduleLoansApiConstants.extraTermsParamName, //
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RescheduleLoansApiConstants.emiParamName//
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);
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for (var unsupportedField : unsupportedFields) {
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if (this.fromJsonHelper.parameterHasValue(unsupportedField, jsonElement)) {
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dataValidatorBuilder.reset().parameter(unsupportedField).failWithCode(
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RescheduleLoansApiConstants.rescheduleSelectedOperationNotSupportedErrorCode,
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"Selected operation is not supported by Progressive Loan at a time during Loan Rescheduling");
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}
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}
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}
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@Override
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public void validateForApproveAction(JsonCommand jsonCommand, LoanRescheduleRequest loanRescheduleRequest) {
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validateSupportedParameters(jsonCommand, APPROVE_REQUEST_DATA_PARAMETERS);
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final List<ApiParameterError> dataValidationErrors = new ArrayList<>();
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final DataValidatorBuilder dataValidatorBuilder = new DataValidatorBuilder(dataValidationErrors)
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.resource(StringUtils.lowerCase(RescheduleLoansApiConstants.ENTITY_NAME));
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final JsonElement jsonElement = jsonCommand.parsedJson();
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validateApprovalDate(fromJsonHelper, loanRescheduleRequest, jsonElement, dataValidatorBuilder);
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validateRescheduleRequestStatus(loanRescheduleRequest, dataValidatorBuilder);
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LocalDate rescheduleFromDate = loanRescheduleRequest.getRescheduleFromDate();
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final Loan loan = loanRescheduleRequest.getLoan();
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LoanRepaymentScheduleInstallment installment;
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validateLoanIsActive(loan, dataValidatorBuilder);
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if (loanRescheduleRequest.getInterestRateFromInstallmentTermVariationIfExists() != null) {
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installment = loan.getRelatedRepaymentScheduleInstallment(rescheduleFromDate);
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if (!rescheduleFromDate.isAfter(DateUtils.getBusinessLocalDate())) {
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throw new GeneralPlatformDomainRuleException(
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"loan.reschedule.interest.rate.change.reschedule.from.date.should.be.in.future",
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"Loan Reschedule From date should be in the future.", rescheduleFromDate);
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}
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} else {
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installment = loan.getRepaymentScheduleInstallment(rescheduleFromDate);
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}
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validateReschedulingInstallment(dataValidatorBuilder, installment);
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validateForOverdueCharges(dataValidatorBuilder, loan, installment);
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if (!dataValidationErrors.isEmpty()) {
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throw new PlatformApiDataValidationException(dataValidationErrors);
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}
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}
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@Override
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public void validateForRejectAction(JsonCommand jsonCommand, LoanRescheduleRequest loanRescheduleRequest) {
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throw new UnsupportedOperationException("Nothing to override here");
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}
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private void validateInterestRateChangeRescheduleFromDate(Loan loan, LocalDate rescheduleFromDate) {
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boolean alreadyExistInterestRateChange = loanRescheduleRequestRepository.exists((root, query, criteriaBuilder) -> {
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Predicate loanPredicate = criteriaBuilder.equal(root.get("loan"), loan);
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Predicate statusPredicate = root.get("statusEnum")
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.in(List.of(LoanStatus.SUBMITTED_AND_PENDING_APPROVAL.getValue(), LoanStatus.APPROVED.getValue()));
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Predicate datePredicate = criteriaBuilder.equal(root.get("rescheduleFromDate"), rescheduleFromDate);
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return criteriaBuilder.and(loanPredicate, statusPredicate, datePredicate);
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});
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if (alreadyExistInterestRateChange) {
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throw new GeneralPlatformDomainRuleException("loan.reschedule.interest.rate.change.already.exists",
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"Interest rate change for the provided date is already exists.", rescheduleFromDate);
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}
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}
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}
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