package org.kuali.student.core.bo;
   
   import java.util.Date;
   
   import org.apache.commons.lang.StringUtils;
   import org.apache.ojb.broker.PersistenceBroker;
   import org.apache.ojb.broker.PersistenceBrokerException;
   import org.kuali.rice.kns.service.KNSServiceLocator;
   import org.kuali.rice.kns.util.GlobalVariables;
  
  public class KsMetaBusinessObjectBase extends KsBusinessObjectBase implements KsMetaBusinessObject {
  
      private static final long serialVersionUID = -6804800481530556124L;
  
      
      private String createId;
  
      private Date createDate;
  
      private String updateId;
  
      private Date updateDate;
  
  
      /**
       * This will take properties and create a Meta object to return, the value is not persisted.
       * This is to support the KS embedded style Meta object for future compatibility.  OJB/KNS
       * do not seem to support embedded entities (called Nested in OJB terms).
       */
      @Override
      public Meta getMeta() {
          Meta meta = new Meta();
          
          meta.setCreateId(createId);
          meta.setCreateTime(createDate);
          meta.setUpdateId(updateId);
          meta.setUpdateTime(updateDate);
          
          return meta;
      }
  
      /**
       * This will set the internal properties from the incoming Meta object.
       * This is to support the KS embedded style Meta object for future compatibility.  OJB/KNS
       * do not seem to support embedded entities (called Nested in OJB terms).
       * 
       * Uses setter methods to allow behavior from subclass.
       */
      @Override
      public void setMeta(Meta meta) {
          this.setCreateId(meta.getCreateId());
          this.setCreateDate(meta.getCreateTime());
          this.setUpdateId(meta.getUpdateId());
          this.setUpdateDate(meta.getCreateTime());
      }
      
      @Override
      public void beforeInsert(PersistenceBroker persistenceBroker) throws PersistenceBrokerException {
          super.beforeInsert(persistenceBroker);
  
          if (StringUtils.isBlank(this.getCreateId())) {
              this.setCreateId(GlobalVariables.getUserSession().getPrincipalName());
          }
  
          if (this.getCreateDate() == null) {
              this.setCreateDate(KNSServiceLocator.getDateTimeService().getCurrentSqlDate());
          }
      }
  
      @Override
      public void beforeUpdate(PersistenceBroker persistenceBroker) throws PersistenceBrokerException {
          super.beforeUpdate(persistenceBroker);
  
          this.setUpdateId(GlobalVariables.getUserSession().getPrincipalName());
          this.setUpdateDate(KNSServiceLocator.getDateTimeService().getCurrentSqlDate());
      }
  
      public String getCreateId() {
          return createId;
      }
  
      public void setCreateId(String createId) {
          this.createId = createId;
      }
  
      public Date getCreateDate() {
          return createDate;
      }
  
      public void setCreateDate(Date createDate) {
          this.createDate = createDate;
      }
  
      public String getUpdateId() {
          return updateId;
      }
  
      public void setUpdateId(String updateId) {
          this.updateId = updateId;
     }
 
     public Date getUpdateDate() {
         return updateDate;
     }
 
     public void setUpdateDate(Date updateDate) {
         this.updateDate = updateDate;
     }
 
 }