package org.lsst.ccs.bus;
   
   import java.util.HashMap;
   import java.util.List;
   import java.util.Map;
   
   
   /**
    * A special status publishing a name/value pair on the status bus
   * <P/>
   * Though it extends <TT>DataStatus_Deprecated</TT> the main purpose is slightly different.
   * 
   * @author aubourg
   * 
   */
  
  public class TrendingStatus extends DataStatus_Deprecated {
  
      private static final long serialVersionUID = 6585487433733821541L;
  
  
  
  	public TrendingStatus() {
  	}
  
      //TODO: newer version will create an ObjectandType or DataValuelNotification
      @Deprecated
  	public TrendingStatus(Object value) {
  		super();
  		this.value = value;
  	}
  
      public TrendingStatus(DataValueNotification value) {
          super() ;
          this.value = value ;
      }
  
      public TrendingStatus(List<? extends ValueNotification> list) {
          super() ;
          this.value = list ;
          //System.out.println("calling TrendingStatus");
      }
  
      public String dummy() {
          return "dummy" ;
      }
  
  
      /**
       *  gets the content
       * @return
       */
      @Deprecated
  	public Object getValue() {
          try {
              return getData();
          } catch (ClassNotFoundException e) {
              return value ;
          }
      }
  
      @Override
      public Object getData() throws ClassNotFoundException {
          //System.out.println("calling getData");
          if(value instanceof ObjectNType) {
              return ((ObjectNType) value).getData();
          }
          /* BUG
          if(value instanceof DataValueNotification) {
              return ((DataValueNotification)value).getRealData() ;
          }
          //TODO: reassess what to do
      if(value instanceof List) {
      if(((List)value).get(0) instanceof DataValueNotification) {
          List<DataValueNotification> listValues = (List<DataValueNotification>) value ;
          ArrayList<Object> res = new ArrayList<Object>(listValues.size()) ;
          for(DataValueNotification notification : listValues) {
              res.add(notification.getRealData()) ;
          }
          return res ;
              }
              if(((List)value).get(0) instanceof ValueNotification) {
                  /*
                  List<ValueNotification> listValues = (List<ValueNotification>) value ;
                  ArrayList<Object> res = new ArrayList<Object>(listValues.size()) ;
                  for(ValueNotification notification : listValues) {
                      res.add(notification.getData()) ;
                  }
                  return res ;
              }
          }
                  */
          return value ;
      }
  
      /**
       * Map of Trending key/values: the values are itself of type
       * <TT>ObjectNType</TT> so you can get the real type to be used.
       * if the content is a list of <TT>DataValueNotification</TT> all trending info
      * is added to the same Map.
      * @returna may be null if content is not based on <TT>DataValueNotification</TT>
      */
     public Map<String, ObjectNType> getTrendingMap() {
         if(value instanceof DataValueNotification) {
             return ((DataValueNotification)value).getTrendingMap() ;
         } else if (value instanceof List) {
             // we only accept DataValue Notification as members of the list
             HashMap<String,ObjectNType> mapres = new HashMap<String, ObjectNType>() ;
             for(Object member : (List) value) {
                 if(! (member instanceof DataValueNotification)) {
                     //TODO LOG WARNING!
                     return null ;
                 }
                 Map<String, ObjectNType> mapDVN = ((DataValueNotification)member).getTrendingMap() ;
                 if(mapDVN != null) {
                     mapres.putAll(mapDVN);
                 }
             }
             return mapres ;
         }
         return null ;
     }
 
     @Deprecated
 	public void setValue(Object value) {
 		this.value = value;
 	}
 
     @Override
     public boolean isOfWellKnownType() {
         if(value instanceof ObjectNType) {
             return ((ObjectNType) value).isOfWellKnownType();
         }
         if(value instanceof DataValueNotification) {
             return ((DataValueNotification)value).isOfWellKnownType() ;
         }
         //TODO : is this true?
         if(value instanceof List) {
             return false ;
         }
         return true ;
     }
 
     @Override
     public boolean  isOfPrimitiveType() {
         if(value instanceof ObjectNType) {
             return ((ObjectNType) value).isOfPrimitiveType();
         }
         if(value instanceof DataValueNotification) {
             return ((DataValueNotification)value).isOfPrimitiveType() ;
         }
         return false ;
     }
     @Override
     public String getDataClassName() {
         if(value instanceof DataValueNotification) {
             return ((DataValueNotification)value).getObjectNType().getClassName() ;
         }
         return super.getDataClassName() ;
     }
 
 	@Override
 	public String toString() {
         Object val = null ;
         try {
             val = getData() ;
         } catch (ClassNotFoundException e) {
             val = "object_class_not_found" ;
         }
         return "TrendingStatus(" + origin + ") @" + timeStamp + " : [" + state + "] "
 				+ summary+ "("+ val +")";
 	}
 
 }