| /* |
| * Copyright 2017 Kuelap, Inc. |
| * |
| * Licensed 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 io.mifos.individuallending.internal.service; |
| |
| import io.mifos.portfolio.api.v1.domain.ChargeDefinition; |
| import io.mifos.portfolio.service.internal.repository.BalanceSegmentEntity; |
| import io.mifos.portfolio.service.internal.repository.BalanceSegmentRepository; |
| import io.mifos.portfolio.service.internal.service.ChargeDefinitionService; |
| import org.springframework.beans.factory.annotation.Autowired; |
| import org.springframework.stereotype.Service; |
| |
| import javax.annotation.Nonnull; |
| import java.math.BigDecimal; |
| import java.util.Comparator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Optional; |
| import java.util.stream.Collectors; |
| import java.util.stream.Stream; |
| |
| /** |
| * @author Myrle Krantz |
| */ |
| @Service |
| public class ScheduledChargesService { |
| private final ChargeDefinitionService chargeDefinitionService; |
| private final BalanceSegmentRepository balanceSegmentRepository; |
| |
| @Autowired |
| public ScheduledChargesService( |
| final ChargeDefinitionService chargeDefinitionService, |
| final BalanceSegmentRepository balanceSegmentRepository) { |
| this.chargeDefinitionService = chargeDefinitionService; |
| this.balanceSegmentRepository = balanceSegmentRepository; |
| } |
| |
| List<ScheduledCharge> getScheduledCharges( |
| final String productIdentifier, |
| final @Nonnull List<ScheduledAction> scheduledActions) { |
| final Map<String, List<ChargeDefinition>> chargeDefinitionsMappedByChargeAction |
| = chargeDefinitionService.getChargeDefinitionsMappedByChargeAction(productIdentifier); |
| |
| final Map<String, List<ChargeDefinition>> chargeDefinitionsMappedByAccrueAction |
| = chargeDefinitionService.getChargeDefinitionsMappedByAccrueAction(productIdentifier); |
| |
| return getScheduledCharges( |
| productIdentifier, |
| scheduledActions, |
| chargeDefinitionsMappedByChargeAction, |
| chargeDefinitionsMappedByAccrueAction); |
| } |
| |
| private List<ScheduledCharge> getScheduledCharges( |
| final String productIdentifier, |
| final List<ScheduledAction> scheduledActions, |
| final Map<String, List<ChargeDefinition>> chargeDefinitionsMappedByChargeAction, |
| final Map<String, List<ChargeDefinition>> chargeDefinitionsMappedByAccrueAction) { |
| return scheduledActions.stream() |
| .flatMap(scheduledAction -> |
| getChargeDefinitionStream( |
| chargeDefinitionsMappedByChargeAction, |
| chargeDefinitionsMappedByAccrueAction, |
| scheduledAction) |
| .map(chargeDefinition -> new ScheduledCharge( |
| scheduledAction, |
| chargeDefinition, |
| findChargeRange(productIdentifier, chargeDefinition)))) |
| .collect(Collectors.toList()); |
| } |
| |
| @SuppressWarnings("OptionalUsedAsFieldOrParameterType") |
| private static class Segment { |
| final String identifier; |
| final BigDecimal lowerBound; |
| final Optional<BigDecimal> upperBound; |
| |
| private Segment(final String segmentIdentifier, |
| final BigDecimal lowerBound, |
| final Optional<BigDecimal> upperBound) { |
| this.identifier = segmentIdentifier; |
| this.lowerBound = lowerBound; |
| this.upperBound = upperBound; |
| } |
| |
| BigDecimal getLowerBound() { |
| return lowerBound; |
| } |
| |
| Optional<BigDecimal> getUpperBound() { |
| return upperBound; |
| } |
| |
| @Override |
| public String toString() { |
| return "Segment{" + |
| "identifier='" + identifier + '\'' + |
| ", lowerBound=" + lowerBound + |
| ", upperBound=" + upperBound + |
| '}'; |
| } |
| } |
| |
| Optional<ChargeRange> findChargeRange(final String productIdentifier, final ChargeDefinition chargeDefinition) { |
| if ((chargeDefinition.getForSegmentSet() == null) || |
| (chargeDefinition.getFromSegment() == null) || |
| (chargeDefinition.getToSegment() == null)) |
| return Optional.empty(); |
| |
| final List<BalanceSegmentEntity> segmentSet = balanceSegmentRepository.findByProductIdentifierAndSegmentSetIdentifier(productIdentifier, chargeDefinition.getForSegmentSet()) |
| .sorted(Comparator.comparing(BalanceSegmentEntity::getLowerBound)) |
| .collect(Collectors.toList()); |
| |
| final Map<String, Segment> segments = Stream.iterate(0, i -> i + 1).limit(segmentSet.size()) |
| .map(i -> new Segment( |
| segmentSet.get(i).getSegmentIdentifier(), |
| segmentSet.get(i).getLowerBound(), |
| Optional.ofNullable(i + 1 < segmentSet.size() ? |
| segmentSet.get(i + 1).getLowerBound() : |
| null) |
| )) |
| .collect(Collectors.toMap(x -> x.identifier, x -> x)); |
| |
| |
| final Optional<Segment> fromSegment = Optional.ofNullable(segments.get(chargeDefinition.getFromSegment())); |
| final Optional<Segment> toSegment = Optional.ofNullable(segments.get(chargeDefinition.getToSegment())); |
| if (!fromSegment.isPresent() || !toSegment.isPresent()) |
| return Optional.empty(); |
| |
| return Optional.of(new ChargeRange(fromSegment.get().getLowerBound(), toSegment.get().getUpperBound())); |
| } |
| |
| private static Stream<ChargeDefinition> getChargeDefinitionStream( |
| final Map<String, List<ChargeDefinition>> chargeDefinitionsMappedByChargeAction, |
| final Map<String, List<ChargeDefinition>> chargeDefinitionsMappedByAccrueAction, |
| final ScheduledAction scheduledAction) { |
| final List<ChargeDefinition> chargeMappingList = chargeDefinitionsMappedByChargeAction |
| .get(scheduledAction.action.name()); |
| Stream<ChargeDefinition> chargeMapping = chargeMappingList == null ? Stream.empty() : chargeMappingList.stream(); |
| if (chargeMapping == null) |
| chargeMapping = Stream.empty(); |
| |
| final List<ChargeDefinition> accrueMappingList = chargeDefinitionsMappedByAccrueAction |
| .get(scheduledAction.action.name()); |
| Stream<ChargeDefinition> accrueMapping = accrueMappingList == null ? Stream.empty() : accrueMappingList.stream(); |
| if (accrueMapping == null) |
| accrueMapping = Stream.empty(); |
| |
| return Stream.concat( |
| accrueMapping.sorted(ScheduledChargeComparator::proportionalityApplicationOrder), |
| chargeMapping.sorted(ScheduledChargeComparator::proportionalityApplicationOrder)); |
| } |
| } |