| /** |
| * 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.serialization; |
| |
| import java.lang.reflect.Type; |
| import java.math.BigDecimal; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Locale; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.commons.lang.StringUtils; |
| import org.apache.fineract.infrastructure.core.data.ApiParameterError; |
| import org.apache.fineract.infrastructure.core.data.DataValidatorBuilder; |
| import org.apache.fineract.infrastructure.core.exception.InvalidJsonException; |
| import org.apache.fineract.infrastructure.core.exception.PlatformApiDataValidationException; |
| import org.apache.fineract.infrastructure.core.exception.UnsupportedParameterException; |
| import org.apache.fineract.infrastructure.core.serialization.FromJsonHelper; |
| import org.apache.fineract.portfolio.loanaccount.api.LoanApiConstants; |
| import org.apache.fineract.portfolio.loanaccount.domain.Loan; |
| import org.joda.time.LocalDate; |
| import org.springframework.beans.factory.annotation.Autowired; |
| import org.springframework.stereotype.Component; |
| |
| import com.google.gson.JsonArray; |
| import com.google.gson.JsonElement; |
| import com.google.gson.JsonObject; |
| import com.google.gson.reflect.TypeToken; |
| |
| @Component |
| public class VariableLoanScheduleFromApiJsonValidator { |
| |
| final Set<String> variableSchedulesupportedParameters = new HashSet<>(Arrays.asList(LoanApiConstants.exceptionParamName, |
| LoanApiConstants.localeParameterName, LoanApiConstants.dateFormatParameterName)); |
| final Set<String> variableSchedulesupportedArrayParameters = new HashSet<>(Arrays.asList( |
| LoanApiConstants.modifiedinstallmentsParamName, LoanApiConstants.newinstallmentsParamName, |
| LoanApiConstants.deletedinstallmentsParamName)); |
| final Set<String> variableScheduleModifiedParameters = new HashSet<>(Arrays.asList(LoanApiConstants.dueDateParamName, |
| LoanApiConstants.modifiedDueDateParamName, LoanApiConstants.principalParamName, LoanApiConstants.installmentAmountParamName)); |
| final Set<String> variableScheduleNewInstallmentParameters = new HashSet<>(Arrays.asList(LoanApiConstants.dueDateParamName, |
| LoanApiConstants.principalParamName, LoanApiConstants.installmentAmountParamName)); |
| final Set<String> variableScheduleDeleteInstallmentParameters = new HashSet<>(Arrays.asList(LoanApiConstants.dueDateParamName)); |
| |
| private final FromJsonHelper fromApiJsonHelper; |
| |
| @Autowired |
| public VariableLoanScheduleFromApiJsonValidator(final FromJsonHelper fromApiJsonHelper) { |
| this.fromApiJsonHelper = fromApiJsonHelper; |
| } |
| |
| public void validateSchedule(final String json, final Loan loan) { |
| if (StringUtils.isBlank(json)) { throw new InvalidJsonException(); } |
| |
| final Type typeOfMap = new TypeToken<Map<String, Object>>() {}.getType(); |
| this.fromApiJsonHelper.checkForUnsupportedParameters(typeOfMap, json, this.variableSchedulesupportedParameters); |
| |
| final List<ApiParameterError> dataValidationErrors = new ArrayList<>(); |
| final DataValidatorBuilder baseDataValidator = new DataValidatorBuilder(dataValidationErrors).resource("loan"); |
| |
| if (!loan.isSubmittedAndPendingApproval()) { |
| baseDataValidator.reset().failWithCodeNoParameterAddedToErrorCode("account.is.not.submitted.and.pending.state", |
| "Loan is not in submited state"); |
| throw new PlatformApiDataValidationException(dataValidationErrors); |
| } |
| |
| final JsonElement element = this.fromApiJsonHelper.parse(json); |
| if (loan.loanProduct().allowVariabeInstallments()) { |
| if (element.isJsonObject() && this.fromApiJsonHelper.parameterExists(LoanApiConstants.exceptionParamName, element)) { |
| final JsonObject topLevelJsonElement = element.getAsJsonObject(); |
| final String dateFormat = this.fromApiJsonHelper.extractDateFormatParameter(topLevelJsonElement); |
| final Locale locale = this.fromApiJsonHelper.extractLocaleParameter(topLevelJsonElement); |
| final JsonObject exceptionObject = topLevelJsonElement.getAsJsonObject(LoanApiConstants.exceptionParamName); |
| this.fromApiJsonHelper.checkForUnsupportedParameters(exceptionObject, this.variableSchedulesupportedArrayParameters); |
| if (this.fromApiJsonHelper.parameterExists(LoanApiConstants.modifiedinstallmentsParamName, exceptionObject) |
| && exceptionObject.get(LoanApiConstants.modifiedinstallmentsParamName).isJsonArray()) { |
| final JsonArray modificationsArray = exceptionObject.get(LoanApiConstants.modifiedinstallmentsParamName) |
| .getAsJsonArray(); |
| validateLoanTermVariations(loan, baseDataValidator, dateFormat, locale, modificationsArray, |
| this.variableScheduleModifiedParameters, LoanApiConstants.modifiedinstallmentsParamName); |
| } |
| if (this.fromApiJsonHelper.parameterExists(LoanApiConstants.newinstallmentsParamName, exceptionObject) |
| && exceptionObject.get(LoanApiConstants.newinstallmentsParamName).isJsonArray()) { |
| final JsonArray array = exceptionObject.get(LoanApiConstants.newinstallmentsParamName).getAsJsonArray(); |
| validateLoanTermVariations(loan, baseDataValidator, dateFormat, locale, array, |
| this.variableScheduleNewInstallmentParameters, LoanApiConstants.newinstallmentsParamName); |
| } |
| if (this.fromApiJsonHelper.parameterExists(LoanApiConstants.deletedinstallmentsParamName, exceptionObject) |
| && exceptionObject.get(LoanApiConstants.deletedinstallmentsParamName).isJsonArray()) { |
| final JsonArray array = exceptionObject.get(LoanApiConstants.deletedinstallmentsParamName).getAsJsonArray(); |
| validateLoanTermVariations(loan, baseDataValidator, dateFormat, locale, array, |
| this.variableScheduleDeleteInstallmentParameters, LoanApiConstants.deletedinstallmentsParamName); |
| } |
| } |
| } else { |
| baseDataValidator.reset().failWithCodeNoParameterAddedToErrorCode("variable.schedule.not.supported", |
| "Loan schedule modification not allowed"); |
| } |
| if (!dataValidationErrors.isEmpty()) { throw new PlatformApiDataValidationException(dataValidationErrors); } |
| } |
| |
| private void validateLoanTermVariations(final Loan loan, final DataValidatorBuilder baseDataValidator, final String dateFormat, |
| final Locale locale, final JsonArray modificationsArray, final Set<String> supportParams, final String arrayName) { |
| for (int i = 1; i <= modificationsArray.size(); i++) { |
| |
| final JsonObject arrayElement = modificationsArray.get(i - 1).getAsJsonObject(); |
| this.fromApiJsonHelper.checkForUnsupportedParameters(arrayElement, supportParams); |
| final BigDecimal installmentAmount = this.fromApiJsonHelper.extractBigDecimalNamed(LoanApiConstants.installmentAmountParamName, |
| arrayElement, locale); |
| baseDataValidator.reset().parameter(arrayName).parameterAtIndexArray(LoanApiConstants.installmentAmountParamName, i) |
| .value(installmentAmount).positiveAmount(); |
| final BigDecimal principalAmount = this.fromApiJsonHelper.extractBigDecimalNamed(LoanApiConstants.principalParamName, |
| arrayElement, locale); |
| baseDataValidator.reset().parameter(arrayName).parameterAtIndexArray(LoanApiConstants.principalParamName, i) |
| .value(principalAmount).zeroOrPositiveAmount(); |
| |
| if (loan.getLoanProductRelatedDetail().getInterestMethod().isDecliningBalnce() |
| && loan.getLoanProductRelatedDetail().getAmortizationMethod().isEqualInstallment() && principalAmount != null) { |
| List<String> unsupportedParams = new ArrayList<>(1); |
| unsupportedParams.add(LoanApiConstants.principalParamName); |
| throw new UnsupportedParameterException(unsupportedParams); |
| } else if ((!loan.getLoanProductRelatedDetail().getInterestMethod().isDecliningBalnce() || loan.getLoanProductRelatedDetail() |
| .getAmortizationMethod().isEqualPrincipal()) |
| && installmentAmount != null) { |
| List<String> unsupportedParams = new ArrayList<>(1); |
| unsupportedParams.add(LoanApiConstants.installmentAmountParamName); |
| throw new UnsupportedParameterException(unsupportedParams); |
| } |
| |
| LocalDate duedate = this.fromApiJsonHelper.extractLocalDateNamed(LoanApiConstants.dueDateParamName, arrayElement, dateFormat, |
| locale); |
| baseDataValidator.reset().parameter(arrayName).parameterAtIndexArray(LoanApiConstants.dueDateParamName, i).value(duedate) |
| .notNull().validateDateAfter(loan.getExpectedDisbursedOnLocalDate()); |
| |
| LocalDate modifiedDuedate = this.fromApiJsonHelper.extractLocalDateNamed(LoanApiConstants.modifiedDueDateParamName, |
| arrayElement, dateFormat, locale); |
| baseDataValidator.reset().parameter(arrayName).parameterAtIndexArray(LoanApiConstants.modifiedDueDateParamName, i) |
| .value(modifiedDuedate).validateDateAfter(loan.getExpectedDisbursedOnLocalDate()); |
| if (arrayName.equals(LoanApiConstants.modifiedinstallmentsParamName) && modifiedDuedate == null && installmentAmount == null |
| && principalAmount == null) { |
| baseDataValidator.reset().parameter(arrayName).failWithCode("variation.required", "At least one vario"); |
| } |
| |
| } |
| } |
| } |