/*
    * 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.sys.businessobject.datadictionary;
  
  import org.kuali.rice.kim.api.group.Group;
  import org.kuali.rice.kim.api.role.Role;
  import org.kuali.rice.kim.framework.group.GroupEbo;
  import org.kuali.rice.kim.framework.role.RoleEbo;
  import org.kuali.rice.krad.bo.BusinessObject;
  import org.kuali.rice.krad.datadictionary.DataDictionary;
  import org.kuali.rice.krad.datadictionary.RelationshipDefinition;
  import org.kuali.rice.krad.datadictionary.exception.AttributeValidationException;
  import org.kuali.rice.location.api.campus.Campus;
  import org.kuali.rice.location.api.country.Country;
  import org.kuali.rice.location.api.county.County;
  import org.kuali.rice.location.api.postalcode.PostalCode;
  import org.kuali.rice.location.api.state.State;
  import org.kuali.rice.location.framework.campus.CampusEbo;
  import org.kuali.rice.location.framework.country.CountryEbo;
  import org.kuali.rice.location.framework.county.CountyEbo;
  import org.kuali.rice.location.framework.postalcode.PostalCodeEbo;
  import org.kuali.rice.location.framework.state.StateEbo;
  
  public class KfsRelationshipDefinition extends RelationshipDefinition {
      private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(KfsRelationshipDefinition.class);
  
      @Override
      public Class<?> getTargetClass() {
          if (targetClass == null) {
              Class propertyClass = DataDictionary.getAttributeClass(sourceClass, objectAttributeName);
              if (propertyClass == null) {
                  throw new AttributeValidationException("cannot get valid class for property '" + objectAttributeName + "' as an attribute of '" + sourceClass + "'");
              }
              // RICE20 - HACK ALERT!!!! - if the property class is one of the
              // ones we use via BOs, change the type to an EBO to attempt to
              // preserve the lookups
              if ( Campus.class.isAssignableFrom(propertyClass) ) {
                  LOG.error( "ALERT! : " + propertyClass.getName() + " Reference Unconverted to Ebo class: " + sourceClass.getName() + "." + objectAttributeName );
                  propertyClass = CampusEbo.class;
              } else if ( State.class.isAssignableFrom(propertyClass) ) {
                  LOG.error( "ALERT! : " + propertyClass.getName() + " Reference Unconverted to Ebo class: " + sourceClass.getName() + "." + objectAttributeName );
                  propertyClass = StateEbo.class;
              } else if ( PostalCode.class.isAssignableFrom(propertyClass) ) {
                  LOG.error( "ALERT! : " + propertyClass.getName() + " Reference Unconverted to Ebo class: " + sourceClass.getName() + "." + objectAttributeName );
                  propertyClass = PostalCodeEbo.class;
              } else if ( Country.class.isAssignableFrom(propertyClass) ) {
                  LOG.error( "ALERT! : " + propertyClass.getName() + " Reference Unconverted to Ebo class: " + sourceClass.getName() + "." + objectAttributeName );
                  propertyClass = CountryEbo.class;
              } else if ( County.class.isAssignableFrom(propertyClass) ) {
                  LOG.error( "ALERT! : " + propertyClass.getName() + " Reference Unconverted to Ebo class: " + sourceClass.getName() + "." + objectAttributeName );
                  propertyClass = CountyEbo.class;
              } else if ( Role.class.isAssignableFrom(propertyClass) ) {
                  LOG.error( "ALERT! : " + propertyClass.getName() + " Reference Unconverted to Ebo class: " + sourceClass.getName() + "." + objectAttributeName );
                  propertyClass = RoleEbo.class;
              } else if ( Group.class.isAssignableFrom(propertyClass) ) {
                  LOG.error( "ALERT! : " + propertyClass.getName() + " Reference Unconverted to Ebo class: " + sourceClass.getName() + "." + objectAttributeName );
                  propertyClass = GroupEbo.class;
              } else {
                  if (!BusinessObject.class.isAssignableFrom(propertyClass)) {
                      throw new AttributeValidationException("property '" + objectAttributeName + "' is not a BusinessObject (" + propertyClass.getName() + ") on sourceClass (" + sourceClass +")");
                  }
              }
  
  
              targetClass = propertyClass;
          }
          return targetClass;
      }
  
      @Override
      public void completeValidation(Class rootBusinessObjectClass, Class otherBusinessObjectClass) {
          if ( LOG.isDebugEnabled() ) {
              LOG.debug( "Validating Relationships on BO: " + rootBusinessObjectClass.getSimpleName() + "." + objectAttributeName );
          }
          // TODO Auto-generated method stub
          super.completeValidation(rootBusinessObjectClass, otherBusinessObjectClass);
      }
  
  }