CustomerInvoiceBothEndDateAndTotalRecurrenceNumberValidation.java example

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/*
 * The Kuali Financial System, a comprehensive financial management system for higher education.
 * 
 * Copyright 2005-2014 The Kuali Foundation
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.kuali.kfs.module.ar.document.validation.impl;

import static org.kuali.kfs.sys.document.validation.impl.AccountingDocumentRuleBaseConstants.ERROR_PATH.DOCUMENT_ERROR_PREFIX;

import java.sql.Date;
import java.util.Calendar;

import org.kuali.kfs.module.ar.ArKeyConstants;
import org.kuali.kfs.module.ar.ArPropertyConstants;
import org.kuali.kfs.module.ar.document.CustomerInvoiceDocument;
import org.kuali.kfs.sys.document.validation.GenericValidation;
import org.kuali.kfs.sys.document.validation.event.AttributedDocumentEvent;
import org.kuali.kfs.sys.util.KfsDateUtils;
import org.kuali.rice.krad.util.GlobalVariables;
import org.kuali.rice.krad.util.ObjectUtils;

public class CustomerInvoiceBothEndDateAndTotalRecurrenceNumberValidation extends GenericValidation {
    
    private CustomerInvoiceDocument customerInvoiceDocument;

    public boolean validate(AttributedDocumentEvent event) {
        
        // short circuit if no recurrence object at all
        if (ObjectUtils.isNull(customerInvoiceDocument.getCustomerInvoiceRecurrenceDetails())) {
            return true;
        }
        
        if (ObjectUtils.isNull(customerInvoiceDocument.getCustomerInvoiceRecurrenceDetails().getDocumentRecurrenceBeginDate()) || 
            ObjectUtils.isNull(customerInvoiceDocument.getCustomerInvoiceRecurrenceDetails().getDocumentRecurrenceIntervalCode()) ||
            ObjectUtils.isNull(customerInvoiceDocument.getCustomerInvoiceRecurrenceDetails().getDocumentRecurrenceEndDate()) ||
            ObjectUtils.isNull(customerInvoiceDocument.getCustomerInvoiceRecurrenceDetails().getDocumentTotalRecurrenceNumber())) {
            return true;
        }

        Calendar beginCalendar = Calendar.getInstance();
        beginCalendar.setTime(customerInvoiceDocument.getCustomerInvoiceRecurrenceDetails().getDocumentRecurrenceBeginDate());
        Date beginDate = customerInvoiceDocument.getCustomerInvoiceRecurrenceDetails().getDocumentRecurrenceBeginDate();
        Calendar endCalendar = Calendar.getInstance();
        endCalendar.setTime(customerInvoiceDocument.getCustomerInvoiceRecurrenceDetails().getDocumentRecurrenceEndDate());
        Date endDate = customerInvoiceDocument.getCustomerInvoiceRecurrenceDetails().getDocumentRecurrenceEndDate();
        Calendar nextCalendar = Calendar.getInstance();
        Date nextDate = beginDate;
                 
        int totalRecurrences = 0;
        int addCounter = 0;
        String intervalCode = customerInvoiceDocument.getCustomerInvoiceRecurrenceDetails().getDocumentRecurrenceIntervalCode();
        if (intervalCode.equals("M")) {
            addCounter = 1;
        }
        if (intervalCode.equals("Q")) {
            addCounter = 3;
        }
        /* perform this loop while begin_date is less than or equal to end_date */
        while (!(beginDate.after(endDate))){
            beginCalendar.setTime(beginDate);
            beginCalendar.add(Calendar.MONTH, addCounter);
            beginDate = KfsDateUtils.convertToSqlDate(beginCalendar.getTime());
            totalRecurrences++;
            nextDate = beginDate;
            nextCalendar.setTime(nextDate);
            nextCalendar.add(Calendar.MONTH, addCounter);
            nextDate = KfsDateUtils.convertToSqlDate(nextCalendar.getTime());
            if (endDate.after(beginDate) && endDate.before(nextDate)) {
                totalRecurrences++;
                break;
            }
        }
        if (totalRecurrences != customerInvoiceDocument.getCustomerInvoiceRecurrenceDetails().getDocumentTotalRecurrenceNumber().intValue()) {
            GlobalVariables.getMessageMap().putError(DOCUMENT_ERROR_PREFIX + ArPropertyConstants.CustomerInvoiceDocumentFields.INVOICE_DOCUMENT_RECURRENCE_END_DATE, ArKeyConstants.ERROR_END_DATE_AND_TOTAL_NUMBER_OF_RECURRENCES_NOT_VALID);
            return false;
        }
        return true;
    }

    public CustomerInvoiceDocument getCustomerInvoiceDocument() {
        return customerInvoiceDocument;
    }

    public void setCustomerInvoiceDocument(CustomerInvoiceDocument customerInvoiceDocument) {
        this.customerInvoiceDocument = customerInvoiceDocument;
    }
}