示例#1
0
  public void removeForwardReferences() {
    KnowledgeBase kb = this.getKnowledgeBase();
    Slot branches = kb.getSlot("branches");
    Slot followed_by = kb.getSlot("followed_by");
    // logger.debug("Slot "+branches.getName());
    // logger.debug("Slot "+followed_by.getName());
    Slot label = kb.getSlot("label");
    Collection steps = getOwnSlotValues(kb.getSlot("steps"));
    for (Iterator iterater = steps.iterator(); iterater.hasNext(); ) {
      Instance step = (Instance) iterater.next();
      // logger.debug("removeForwardReferences: node ="+step.getOwnSlotValue(label));
      /*for (Iterator slots=step.getOwnSlots().iterator(); slots.hasNext();){
      	logger.debug("has slot "+((Slot)slots.next()).getName());
      }*/
      try {
        if (step.hasOwnSlot(branches)) {
          /*logger.debug("removeForwardReferences: "+ step.getOwnSlotValue(label)+
          " has branches"); */
          step.setOwnSlotValues(branches, new ArrayList());
        } else if (step.hasOwnSlot(followed_by)) {
          /* logger.debug("removeForwardReferences: "+ step.getOwnSlotValue(label)+
          " has followed_by value "+step.getOwnSlotValue(followed_by));*/
          step.setOwnSlotValue(followed_by, null);
        } else
          logger.error(
              "removeForwardReferences: "
                  + step.getOwnSlotValue(label)
                  + "has no followed_by or branches slot");
      } catch (Exception e) {

        logger.error(
            "Exception making " + step.getOwnSlotValue(label) + " null, Message: " + e.getMessage(),
            e);
      }
    }
  }
示例#2
0
  /** Main test subroutine for Instance slot. */
  private boolean testInstance(int testIndex, Instance instance, Slot slot, String value) {

    boolean testResult = false;
    if (instance == null) return testResult;
    if (slot == null) {
      return false;
    }

    Instance tmpInstance = (Instance) instance.getOwnSlotValue(slot);
    if (tmpInstance == null && testIndex == 0) return false;
    if (tmpInstance == null && testIndex == 1) return true;

    switch (testIndex) {
      case 0: // is equal to
        return containInstance(instance, slot, itsInstance);
      case 1: // is not equal to
        return (!containInstance(instance, slot, itsInstance));
      default:
        break;
    }
    return testResult;
  }
示例#3
0
 public void addForwardReferences() {
   KnowledgeBase kb = this.getKnowledgeBase();
   Collection transitions = getOwnSlotValues(kb.getSlot("transitions"));
   Slot fromSlot = kb.getSlot(":FROM");
   Slot toSlot = kb.getSlot(":TO");
   Instance from = null;
   Instance to = null;
   Slot branches = kb.getSlot("branches");
   Slot followed_by = kb.getSlot("followed_by");
   Slot label = kb.getSlot("label");
   for (Iterator transition = transitions.iterator(); transition.hasNext(); ) {
     Instance inst = (Instance) transition.next();
     from = (Instance) inst.getOwnSlotValue(fromSlot);
     if (from != null) {
       to = (Instance) inst.getOwnSlotValue(toSlot);
       if (to != null) {
         try {
           if (from.hasOwnSlot(branches)) {
             /*logger.debug("addForwardReferences: "+ from.getOwnSlotValue(label)+
             " has branches"); */
             if ((from.getOwnSlotValues(branches) == null)
                 || (!from.getOwnSlotValues(branches).contains(to)))
               from.addOwnSlotValue(branches, to);
           } else if (from.hasOwnSlot(followed_by)) {
             /*logger.debug("addForwardReferences: "+ from.getOwnSlotValue(label)+
             " has followed by");*/
             if (!(to.equals(from.getOwnSlotValue(followed_by))))
               from.setOwnSlotValue(followed_by, to);
           } else
             logger.error(
                 "addForwardReferences: "
                     + from.getOwnSlotValue(label)
                     + "has no followed_by or branches slot");
         } catch (Exception e) {
           logger.error(
               "Exception adding "
                   + to.getOwnSlotValue(label)
                   + " to "
                   + from.getOwnSlotValue(label));
         }
       }
     }
   }
 }