ruchiD commented on code in PR #2928: URL: https://github.com/apache/fineract/pull/2928#discussion_r1095528276
########## fineract-provider/src/main/java/org/apache/fineract/portfolio/loanaccount/jobs/updateloanarrearsageing/LoanArrearsAgeingUpdateHandler.java: ########## @@ -0,0 +1,202 @@ +/** + * 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.jobs.updateloanarrearsageing; + +import java.sql.Types; +import java.util.ArrayList; +import java.util.List; +import java.util.Map; +import lombok.RequiredArgsConstructor; +import lombok.extern.slf4j.Slf4j; +import org.apache.fineract.infrastructure.core.service.ThreadLocalContextUtil; +import org.apache.fineract.infrastructure.core.service.database.DatabaseSpecificSQLGenerator; +import org.apache.fineract.portfolio.loanaccount.loanschedule.data.LoanSchedulePeriodData; +import org.apache.fineract.portfolio.loanaccount.service.LoanArrearsAgingService; +import org.springframework.jdbc.core.JdbcTemplate; +import org.springframework.stereotype.Component; + +@Slf4j +@Component +@RequiredArgsConstructor +public class LoanArrearsAgeingUpdateHandler { + + private final JdbcTemplate jdbcTemplate; + private final DatabaseSpecificSQLGenerator sqlGenerator; + private final LoanArrearsAgingService loanArrearsAgingService; + + private void truncateLoanArrearsAgingDetails() { + jdbcTemplate.execute("truncate table m_loan_arrears_aging"); + } + + private void deleteLoanArrearsAgingDetails(List<Long> loanIds) { + // delete existing record for loan from m_loan_arrears_aging table + for (Long loanId : loanIds) { + jdbcTemplate.update("delete from m_loan_arrears_aging where loan_id=?", loanId); + } + } + + public void updateLoanArrearsAgeingDetailsForAllLoans() { + truncateLoanArrearsAgingDetails(); + String updateSQL = buildQueryForUpdateAgeingDetails(Boolean.TRUE); + List<String> insertStatements = updateLoanArrearsAgeingDetailsWithOriginalScheduleForAllLoans(); + insertStatements.add(0, updateSQL); + final int[] records = this.jdbcTemplate.batchUpdate(insertStatements.toArray(new String[0])); + int result = 0; + for (int record : records) { + result += record; + } + + log.debug("{}: Records affected by updateLoanArrearsAgeingDetails: {}", ThreadLocalContextUtil.getTenant().getName(), result); + } + + public void updateLoanArrearsAgeingDetails(List<Long> loanIdsForUpdate) { + + deleteLoanArrearsAgingDetails(loanIdsForUpdate); + String updateSQL = buildQueryForUpdateAgeingDetails(Boolean.FALSE); + List<Object[]> batch = new ArrayList<Object[]>(); + if (!loanIdsForUpdate.isEmpty()) { + for (Long loanId : loanIdsForUpdate) { + Object[] values = new Object[] { loanId }; + batch.add(values); + } + } + final int[] recordsUpdatedWithoutOriginalSchedule = this.jdbcTemplate.batchUpdate(updateSQL, batch); + int result = 0; + for (int recordWithoutOriginalSchedule : recordsUpdatedWithoutOriginalSchedule) { + result += recordWithoutOriginalSchedule; + } + List<String> insertStatements = updateLoanArrearsAgeingDetailsWithOriginalSchedule(loanIdsForUpdate); + if (!insertStatements.isEmpty()) { + final int[] recordsUpdatedWithOriginalSchedule = this.jdbcTemplate.batchUpdate(insertStatements.toArray(new String[0])); + for (int recordWithOriginalSchedule : recordsUpdatedWithOriginalSchedule) { + result += recordWithOriginalSchedule; + } + } + log.debug("{}: Records affected by updateLoanArrearsAgeingDetails: {}", ThreadLocalContextUtil.getTenant().getName(), result); + + } + + private String buildQueryForUpdateAgeingDetails(Boolean isForAllLoans) { + final StringBuilder updateSqlBuilder = new StringBuilder(900); + final String principalOverdueCalculationSql = "SUM(COALESCE(mr.principal_amount, 0) - coalesce(mr.principal_completed_derived, 0) - coalesce(mr.principal_writtenoff_derived, 0))"; + final String interestOverdueCalculationSql = "SUM(COALESCE(mr.interest_amount, 0) - coalesce(mr.interest_writtenoff_derived, 0) - coalesce(mr.interest_waived_derived, 0) - " + + "coalesce(mr.interest_completed_derived, 0))"; + final String feeChargesOverdueCalculationSql = "SUM(COALESCE(mr.fee_charges_amount, 0) - coalesce(mr.fee_charges_writtenoff_derived, 0) - " + + "coalesce(mr.fee_charges_waived_derived, 0) - coalesce(mr.fee_charges_completed_derived, 0))"; + final String penaltyChargesOverdueCalculationSql = "SUM(COALESCE(mr.penalty_charges_amount, 0) - coalesce(mr.penalty_charges_writtenoff_derived, 0) - " + + "coalesce(mr.penalty_charges_waived_derived, 0) - coalesce(mr.penalty_charges_completed_derived, 0))"; + + updateSqlBuilder.append( + "INSERT INTO m_loan_arrears_aging(loan_id,principal_overdue_derived,interest_overdue_derived,fee_charges_overdue_derived,penalty_charges_overdue_derived,total_overdue_derived,overdue_since_date_derived)"); + updateSqlBuilder.append("select ml.id as loanId,"); + updateSqlBuilder.append(principalOverdueCalculationSql + " as principal_overdue_derived,"); + updateSqlBuilder.append(interestOverdueCalculationSql + " as interest_overdue_derived,"); + updateSqlBuilder.append(feeChargesOverdueCalculationSql + " as fee_charges_overdue_derived,"); + updateSqlBuilder.append(penaltyChargesOverdueCalculationSql + " as penalty_charges_overdue_derived,"); + updateSqlBuilder.append(principalOverdueCalculationSql + "+" + interestOverdueCalculationSql + "+"); + updateSqlBuilder.append(feeChargesOverdueCalculationSql + "+" + penaltyChargesOverdueCalculationSql + " as total_overdue_derived,"); + updateSqlBuilder.append("MIN(mr.duedate) as overdue_since_date_derived "); + updateSqlBuilder.append(" FROM m_loan ml "); + updateSqlBuilder.append(" INNER JOIN m_loan_repayment_schedule mr on mr.loan_id = ml.id "); + updateSqlBuilder.append(" left join m_product_loan_recalculation_details prd on prd.product_id = ml.product_id "); + updateSqlBuilder.append(" WHERE ml.loan_status_id = 300 ");// active + if (!isForAllLoans) { + updateSqlBuilder.append(" and ml.id IN (?)"); + } + updateSqlBuilder.append(" and mr.completed_derived is false "); + updateSqlBuilder.append(" and mr.duedate < ") + .append(sqlGenerator.subDate(sqlGenerator.currentBusinessDate(), "COALESCE(ml.grace_on_arrears_ageing, 0)", "day")) + .append(" "); + updateSqlBuilder.append(" and (prd.arrears_based_on_original_schedule = false or prd.arrears_based_on_original_schedule is null) "); + updateSqlBuilder.append(" GROUP BY ml.id"); + return updateSqlBuilder.toString(); Review Comment: Not sure about this comment. -- This is an automated message from the Apache Git Service. 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