001    /*
002     * Copyright 2011 The Kuali Foundation.
003     * 
004     * Licensed under the Educational Community License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     * 
008     * http://www.opensource.org/licenses/ecl2.php
009     * 
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    package org.kuali.kfs.module.ar.document.validation.impl;
017    
018    import java.math.BigDecimal;
019    
020    import org.kuali.kfs.module.ar.ArKeyConstants;
021    import org.kuali.kfs.module.ar.ArPropertyConstants;
022    import org.kuali.kfs.module.ar.businessobject.CustomerInvoiceDetail;
023    import org.kuali.kfs.module.ar.document.CustomerInvoiceDocument;
024    import org.kuali.kfs.sys.document.validation.GenericValidation;
025    import org.kuali.kfs.sys.document.validation.event.AttributedDocumentEvent;
026    import org.kuali.rice.kns.util.GlobalVariables;
027    import org.kuali.rice.kns.util.KualiDecimal;
028    import org.kuali.rice.kns.util.ObjectUtils;
029    
030    public class CustomerInvoiceDetailUnitPriceValidation extends GenericValidation {
031    
032        private CustomerInvoiceDetail customerInvoiceDetail;
033        private CustomerInvoiceDocument customerInvoiceDocument;
034        
035        public boolean validate(AttributedDocumentEvent event) {
036            BigDecimal unitPrice = customerInvoiceDetail.getInvoiceItemUnitPrice();
037    
038            // if amount is = 0
039            if (ObjectUtils.isNull(unitPrice) || BigDecimal.ZERO.equals(unitPrice)) {
040                GlobalVariables.getMessageMap().putError(ArPropertyConstants.CustomerInvoiceDocumentFields.INVOICE_ITEM_UNIT_PRICE, ArKeyConstants.ERROR_CUSTOMER_INVOICE_DETAIL_UNIT_PRICE_LESS_THAN_OR_EQUAL_TO_ZERO);
041                return false;
042            }
043            else {
044                // else if unit price is greater than or less than zero
045    
046                if (customerInvoiceDocument.isInvoiceReversal()) {
047                    // if invoice is reversal, discount should be positive, non-discounts should be negative
048                    if (customerInvoiceDetail.isDiscountLine() && unitPrice.compareTo(BigDecimal.ZERO) == -1) {
049                        GlobalVariables.getMessageMap().putError(ArPropertyConstants.CustomerInvoiceDocumentFields.INVOICE_ITEM_UNIT_PRICE, ArKeyConstants.ERROR_CUSTOMER_INVOICE_DETAIL_UNIT_PRICE_LESS_THAN_OR_EQUAL_TO_ZERO);
050                        return false;
051                    }
052                    else if (!customerInvoiceDetail.isDiscountLine() && unitPrice.compareTo(BigDecimal.ZERO) == 1) {
053                        GlobalVariables.getMessageMap().putError(ArPropertyConstants.CustomerInvoiceDocumentFields.INVOICE_ITEM_UNIT_PRICE, ArKeyConstants.ERROR_CUSTOMER_INVOICE_DETAIL_UNIT_PRICE_LESS_THAN_OR_EQUAL_TO_ZERO);
054                        return false;
055                    }
056                }
057                else {
058                    //No need to check for positive because if the line is a discount and the amount is negative, we will negate the line.
059                    if (!customerInvoiceDetail.isDiscountLine() && unitPrice.compareTo(BigDecimal.ZERO) == -1) {
060                        GlobalVariables.getMessageMap().putError(ArPropertyConstants.CustomerInvoiceDocumentFields.INVOICE_ITEM_UNIT_PRICE, ArKeyConstants.ERROR_CUSTOMER_INVOICE_DETAIL_UNIT_PRICE_LESS_THAN_OR_EQUAL_TO_ZERO);
061                        return false;
062                    }
063                }
064            }
065            
066            return true;
067        }
068        
069        public CustomerInvoiceDetail getCustomerInvoiceDetail() {
070            return customerInvoiceDetail;
071        }
072    
073        public void setCustomerInvoiceDetail(CustomerInvoiceDetail customerInvoiceDetail) {
074            this.customerInvoiceDetail = customerInvoiceDetail;
075        }
076    
077        public CustomerInvoiceDocument getCustomerInvoiceDocument() {
078            return customerInvoiceDocument;
079        }
080    
081        public void setCustomerInvoiceDocument(CustomerInvoiceDocument customerInvoiceDocument) {
082            this.customerInvoiceDocument = customerInvoiceDocument;
083        }        
084    }