/*
    * Copyright 2008-2009 The Kuali Foundation
    * 
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    * 
   * 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.kuali.ole.module.purap.document.validation.impl;
  
  import org.kuali.ole.module.purap.PurapConstants;
  import org.kuali.ole.module.purap.PurapKeyConstants;
  import org.kuali.ole.module.purap.document.PurchasingDocument;
  import org.kuali.ole.sys.document.validation.GenericValidation;
  import org.kuali.ole.sys.document.validation.event.AttributedDocumentEvent;
  import org.kuali.rice.core.api.util.type.KualiDecimal;
  import org.kuali.rice.krad.util.GlobalVariables;
  
  import java.math.BigDecimal;
  
  public class PurchasingProcessTotalCostValidation extends GenericValidation {
  
      /**
       * Validates that the total cost must be greater or equal to zero.
       *
       * @param purDocument the purchasing document to be validated
       * @return boolean false if the total cost is less than zero.
       */
      public boolean validate(AttributedDocumentEvent event) {
          boolean valid = true;
          if (((PurchasingDocument) event.getDocument()).getTotalDollarAmount().isLessThan(new KualiDecimal(BigDecimal.ZERO))) {
              valid = false;
              GlobalVariables.getMessageMap().putError(PurapConstants.ITEM_TAB_ERROR_PROPERTY, PurapKeyConstants.ERROR_ITEM_TOTAL_NEGATIVE);
          }
  
          return valid;
      }
  }