package org.kuali.ole.catalog.rule;
   
   import org.kuali.ole.OLEConstants;
   import org.kuali.ole.catalog.bo.OleCountryCodes;
   import org.kuali.rice.krad.maintenance.MaintenanceDocument;
   import org.kuali.rice.krad.rules.MaintenanceDocumentRuleBase;
   
   import java.util.HashMap;
   import java.util.List;
  import java.util.Map;
  
  /**
   * OleCountryCodesRule validates maintenance object for Country Codes Maintenance Document
   */
  public class OleCountryCodesRule extends MaintenanceDocumentRuleBase {
  
      @Override
      protected boolean processCustomSaveDocumentBusinessRules(MaintenanceDocument document) {
          boolean isValid = true;
          OleCountryCodes oleCountryCodes = (OleCountryCodes) document.getNewMaintainableObject().getDataObject();
  
          isValid &= validateCountryCode(oleCountryCodes);
          return isValid;
      }
  
      /**
       *   This method  validates duplicate countryCode Id and return boolean value.
       * @param oleCountryCodes
       * @return  boolean
       */
      private boolean validateCountryCode(OleCountryCodes oleCountryCodes) {
          if (oleCountryCodes.getCountryCode() != null) {
              Map<String, String> criteria = new HashMap<String, String>();
              criteria.put(OLEConstants.OleCountryCodes.COUNTRY_CD, oleCountryCodes.getCountryCode());
              List<OleCountryCodes> countryCodeInDatabase = (List<OleCountryCodes>) getBoService().findMatching(OleCountryCodes.class, criteria);
              if ((countryCodeInDatabase.size() > 0)) {
                  for (OleCountryCodes countryCodeObj : countryCodeInDatabase) {
                      Integer countryCodeId = countryCodeObj.getCountryCodeId();
                      if (null == oleCountryCodes.getCountryCodeId() || (oleCountryCodes.getCountryCodeId().intValue() != countryCodeId.intValue())) {
                          this.putFieldError(OLEConstants.OleCountryCodes.COUNTRY_CODE, "error.duplicate.code");
                          return false;
                      }
                  }
              }
          }
          return true;
      }
  }