sx.java

人工智能中Agent开发包。多 Agent 系统是处理自治 Agent 之间知识层的协作问题

/*
* The contents of this file are subject to the BT "ZEUS" Open Source 
* Licence (L77741), Version 1.0 (the "Licence"); you may not use this file 
* except in compliance with the Licence. You may obtain a copy of the Licence
* from $ZEUS_INSTALL/licence.html or alternatively from
* http://www.labs.bt.com/projects/agents/zeus/licence.htm
* 
* Except as stated in Clause 7 of the Licence, software distributed under the
* Licence is distributed WITHOUT WARRANTY OF ANY KIND, either express or 
* implied. See the Licence for the specific language governing rights and 
* limitations under the Licence.
* 
* The Original Code is within the package zeus.*.
* The Initial Developer of the Original Code is British Telecommunications
* public limited company, whose registered office is at 81 Newgate Street, 
* London, EC1A 7AJ, England. Portions created by British Telecommunications 
* public limited company are Copyright 1996-9. All Rights Reserved.
* 
* THIS NOTICE MUST BE INCLUDED ON ANY COPY OF THIS FILE
*/



package zeus.actors.graphs;

import java.util.*;
import zeus.util.*;
import zeus.concepts.*;
import zeus.actors.*;
import zeus.actors.rtn.*;
import zeus.actors.rtn.util.*;

public class Sx extends Node {
   public Sx() {
      super("Sx");
   }

   // memory useful for backtracking

   protected int exec() {
      Engine engine = context.Engine();
      Planner table = context.Planner();
      DelegationStruct ds;

      // Note we are coming from s3
      Object[] data = (Object[]) input;
      GraphStruct gs = ((DStruct)data[0]).gs;

      boolean isRoot = ((Integer)gs.any).intValue() == AuditTable.ROOT;

      for(int i = 0; i < gs.selection.size(); i++ ) {
         ds = (DelegationStruct) gs.selection.elementAt(i);
         engine.continue_dialogue(ds.key,ds.agent,"reject-proposal",ds.goals);
      }

      Core.DEBUG(2,"Sx: isRoot = " + isRoot);

      if ( isRoot ) {
         Goal g;
         AuditTable audit = engine.getAuditTable();

         for(int i = 0; i < gs.goal.size(); i++ ) {
            g = (Goal) gs.goal.elementAt(i);
            audit.del(g);
         }

      }
      else
         table.failParentOf(gs.goal);

      output = gs;
      return OK;
   }
   protected void reset() {
      // reset any state changed by exec()
   }
}