fineract-provider/src/main/java/org/apache/fineract/portfolio/loanaccount/rescheduleloan/service/LoanRescheduleRequestReadPlatformServiceImpl.java

/**
 * 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.rescheduleloan.service;

import java.math.BigDecimal;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import org.apache.fineract.infrastructure.codes.data.CodeValueData;
import org.apache.fineract.infrastructure.codes.service.CodeValueReadPlatformService;
import org.apache.fineract.infrastructure.core.domain.JdbcSupport;
import org.apache.fineract.infrastructure.core.service.RoutingDataSource;
import org.apache.fineract.portfolio.loanaccount.domain.Loan;
import org.apache.fineract.portfolio.loanaccount.domain.LoanRepository;
import org.apache.fineract.portfolio.loanaccount.exception.LoanNotFoundException;
import org.apache.fineract.portfolio.loanaccount.rescheduleloan.data.LoanRescheduleRequestData;
import org.apache.fineract.portfolio.loanaccount.rescheduleloan.data.LoanRescheduleRequestEnumerations;
import org.apache.fineract.portfolio.loanaccount.rescheduleloan.data.LoanRescheduleRequestStatusEnumData;
import org.apache.fineract.portfolio.loanaccount.rescheduleloan.data.LoanRescheduleRequestTimelineData;
import org.joda.time.LocalDate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.dao.EmptyResultDataAccessException;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.stereotype.Service;

@Service
public class LoanRescheduleRequestReadPlatformServiceImpl implements LoanRescheduleRequestReadPlatformService {

    private final JdbcTemplate jdbcTemplate;
    private final LoanRepository loanRepository;
    private final LoanRescheduleRequestRowMapper loanRescheduleRequestRowMapper = new LoanRescheduleRequestRowMapper();
    private final CodeValueReadPlatformService codeValueReadPlatformService;

    @Autowired
    public LoanRescheduleRequestReadPlatformServiceImpl(final RoutingDataSource dataSource, LoanRepository loanRepository,
            final CodeValueReadPlatformService codeValueReadPlatformService) {
        this.jdbcTemplate = new JdbcTemplate(dataSource);
        this.loanRepository = loanRepository;
        this.codeValueReadPlatformService = codeValueReadPlatformService;
    }

    private static final class LoanRescheduleRequestRowMapper implements RowMapper<LoanRescheduleRequestData> {

        private final String schema;

        public LoanRescheduleRequestRowMapper() {
            final StringBuilder sqlBuilder = new StringBuilder(200);

            sqlBuilder.append("lr.id as id, lr.loan_id as loanId, lr.status_enum as statusEnum, ");
            sqlBuilder.append("mc.display_name as clientName, ");
            sqlBuilder.append("mc.id as clientId, ");
            sqlBuilder.append("ml.account_no as loanAccountNumber, ");
            sqlBuilder.append("lr.reschedule_from_installment as rescheduleFromInstallment, ");
            sqlBuilder.append("lr.grace_on_principal as graceOnPrincipal, ");
            sqlBuilder.append("lr.grace_on_interest as graceOnInterest, ");
            sqlBuilder.append("lr.reschedule_from_date as rescheduleFromDate, ");
            sqlBuilder.append("lr.adjusted_due_date as adjustedDueDate, ");
            sqlBuilder.append("lr.extra_terms as extraTerms, ");
            sqlBuilder.append("lr.recalculate_interest as recalculateInterest, ");
            sqlBuilder.append("lr.interest_rate as interestRate, ");
            sqlBuilder.append("lr.reschedule_reason_cv_id as rescheduleReasonCvId, ");
            sqlBuilder.append("cv.code_value as rescheduleReasonCvValue, ");
            sqlBuilder.append("lr.reschedule_reason_comment as rescheduleReasonComment, ");

            sqlBuilder.append("lr.submitted_on_date as submittedOnDate, ");
            sqlBuilder.append("sbu.username as submittedByUsername, ");
            sqlBuilder.append("sbu.firstname as submittedByFirstname, ");
            sqlBuilder.append("sbu.lastname as submittedByLastname, ");

            sqlBuilder.append("lr.approved_on_date as approvedOnDate, ");
            sqlBuilder.append("abu.username as approvedByUsername, ");
            sqlBuilder.append("abu.firstname as approvedByFirstname, ");
            sqlBuilder.append("abu.lastname as approvedByLastname, ");

            sqlBuilder.append("lr.rejected_on_date as rejectedOnDate, ");
            sqlBuilder.append("rbu.username as rejectedByUsername, ");
            sqlBuilder.append("rbu.firstname as rejectedByFirstname, ");
            sqlBuilder.append("rbu.lastname as rejectedByLastname ");

            sqlBuilder.append("from " + loanRescheduleRequestTableName() + " lr ");
            sqlBuilder.append("left join m_code_value cv on cv.id = lr.reschedule_reason_cv_id ");
            sqlBuilder.append("left join m_appuser sbu on sbu.id = lr.submitted_by_user_id ");
            sqlBuilder.append("left join m_appuser abu on abu.id = lr.approved_by_user_id ");
            sqlBuilder.append("left join m_appuser rbu on rbu.id = lr.rejected_by_user_id ");
            sqlBuilder.append("left join m_loan ml on ml.id = lr.loan_id ");
            sqlBuilder.append("left join m_client mc on mc.id = ml.client_id ");

            this.schema = sqlBuilder.toString();
        }

        public String schema() {
            return this.schema;
        }

        public String loanRescheduleRequestTableName() {
            return "m_loan_reschedule_request";
        }

        @Override
        @SuppressWarnings("unused")
        public LoanRescheduleRequestData mapRow(final ResultSet rs, final int rowNum) throws SQLException {
            final Long id = rs.getLong("id");
            final Long loanId = rs.getLong("loanId");
            final Integer statusEnumId = JdbcSupport.getInteger(rs, "statusEnum");
            final LoanRescheduleRequestStatusEnumData statusEnum = LoanRescheduleRequestEnumerations.status(statusEnumId);
            final String clientName = rs.getString("clientName");
            final String loanAccountNumber = rs.getString("loanAccountNumber");
            final Long clientId = rs.getLong("clientId");
            final Integer rescheduleFromInstallment = JdbcSupport.getInteger(rs, "rescheduleFromInstallment");
            final Integer graceOnPrincipal = JdbcSupport.getInteger(rs, "graceOnPrincipal");
            final Integer graceOnInterest = JdbcSupport.getInteger(rs, "graceOnInterest");
            final LocalDate rescheduleFromDate = JdbcSupport.getLocalDate(rs, "rescheduleFromDate");
            final LocalDate adjustedDueDate = JdbcSupport.getLocalDate(rs, "adjustedDueDate");
            final Integer extraTerms = JdbcSupport.getInteger(rs, "extraTerms");
            final BigDecimal interestRate = rs.getBigDecimal("interestRate");
            final Long rescheduleReasonCvId = JdbcSupport.getLong(rs, "rescheduleReasonCvId");
            final String rescheduleReasonCvValue = rs.getString("rescheduleReasonCvValue");
            final CodeValueData rescheduleReasonCodeValue = CodeValueData.instance(rescheduleReasonCvId, rescheduleReasonCvValue);
            final String rescheduleReasonComment = rs.getString("rescheduleReasonComment");
            final Boolean recalculateInterest = rs.getBoolean("recalculateInterest");

            final LocalDate submittedOnDate = JdbcSupport.getLocalDate(rs, "submittedOnDate");
            final String submittedByUsername = rs.getString("submittedByUsername");
            final String submittedByFirstname = rs.getString("submittedByFirstname");
            final String submittedByLastname = rs.getString("submittedByLastname");

            final LocalDate approvedOnDate = JdbcSupport.getLocalDate(rs, "approvedOnDate");
            final String approvedByUsername = rs.getString("approvedByUsername");
            final String approvedByFirstname = rs.getString("approvedByFirstname");
            final String approvedByLastname = rs.getString("approvedByLastname");

            final LocalDate rejectedOnDate = JdbcSupport.getLocalDate(rs, "rejectedOnDate");
            final String rejectedByUsername = rs.getString("rejectedByUsername");
            final String rejectedByFirstname = rs.getString("rejectedByFirstname");
            final String rejectedByLastname = rs.getString("rejectedByLastname");
            final Collection<CodeValueData> rescheduleReasons = null;
            final LoanRescheduleRequestTimelineData timeline = new LoanRescheduleRequestTimelineData(submittedOnDate, submittedByUsername,
                    submittedByFirstname, submittedByLastname, approvedOnDate, approvedByUsername, approvedByFirstname, approvedByLastname,
                    rejectedOnDate, rejectedByUsername, rejectedByFirstname, rejectedByLastname);

            return LoanRescheduleRequestData.instance(id, loanId, statusEnum, rescheduleFromInstallment, graceOnPrincipal, graceOnInterest,
                    rescheduleFromDate, adjustedDueDate, extraTerms, interestRate, rescheduleReasonCodeValue, rescheduleReasonComment,
                    timeline, clientName, loanAccountNumber, clientId, recalculateInterest, rescheduleReasons);
        }

    }

    @Override
    public List<LoanRescheduleRequestData> readLoanRescheduleRequests(Long loanId) {
        final Loan loan = this.loanRepository.findOne(loanId);

        if (loan == null) { throw new LoanNotFoundException(loanId); }

        final String sql = "select " + this.loanRescheduleRequestRowMapper.schema() + " where lr.loan_id = ?";

        return this.jdbcTemplate.query(sql, this.loanRescheduleRequestRowMapper, new Object[] { loanId });
    }

    @Override
    public LoanRescheduleRequestData readLoanRescheduleRequest(Long requestId) {

        try {
            final String sql = "select " + this.loanRescheduleRequestRowMapper.schema() + " where lr.id = ?";

            return this.jdbcTemplate.queryForObject(sql, this.loanRescheduleRequestRowMapper, new Object[] { requestId });
        }

        catch (final EmptyResultDataAccessException e) {
            return null;
        }
    }

    @Override
    public List<LoanRescheduleRequestData> readLoanRescheduleRequests(Long loanId, Integer statusEnum) {
        final Loan loan = this.loanRepository.findOne(loanId);

        if (loan == null) { throw new LoanNotFoundException(loanId); }

        final String sql = "select " + this.loanRescheduleRequestRowMapper.schema() + " where lr.loan_id = ?" + " and lr.status_enum = ?";

        return this.jdbcTemplate.query(sql, this.loanRescheduleRequestRowMapper, new Object[] { loanId, statusEnum });
    }

    @Override
    public LoanRescheduleRequestData retrieveAllRescheduleReasons(String loanRescheduleReason) {
        final List<CodeValueData> rescheduleReasons = new ArrayList<>(
                this.codeValueReadPlatformService.retrieveCodeValuesByCode(loanRescheduleReason));
        final Long id = null;
        final Long loanId = null;
        final LoanRescheduleRequestStatusEnumData statusEnum = null;
        final Integer rescheduleFromInstallment = null;
        final Integer graceOnPrincipal = null;
        final Integer graceOnInterest = null;
        final LocalDate rescheduleFromDate = null;
        final LocalDate adjustedDueDate = null;
        final Integer extraTerms = null;
        final BigDecimal interestRate = null;
        final CodeValueData rescheduleReasonCodeValue = null;
        final String rescheduleReasonComment = null;
        final LoanRescheduleRequestTimelineData timeline = null;
        final String clientName = null;
        final String loanAccountNumber = null;
        final Long clientId = null;
        final Boolean recalculateInterest = null;

        return LoanRescheduleRequestData.instance(id, loanId, statusEnum, rescheduleFromInstallment, graceOnPrincipal, graceOnInterest,
                rescheduleFromDate, adjustedDueDate, extraTerms, interestRate, rescheduleReasonCodeValue, rescheduleReasonComment,
                timeline, clientName, loanAccountNumber, clientId, recalculateInterest, rescheduleReasons);
    }
}