package NET.worlds.network;

import java.util.Vector;

class WaitList {
   private Vector<ConnectionWaiter> _waitList = new Vector<ConnectionWaiter>();
   private Object _parent;

   protected WaitList(Object parent) {
      this._parent = parent;
   }

   protected synchronized void addWaiter(ConnectionWaiter cw) {
      if ((Galaxy.getDebugLevel() & 16384) > 0) {
         System.out.println(this._parent + ": waitForConnection(" + cw + ")");
      }

      if (this._waitList.indexOf(cw) < 0) {
         this._waitList.addElement(cw);
      }
   }

   protected synchronized void abortWait(ConnectionWaiter cw) {
      assert this._waitList.indexOf(cw) != -1;

      this._waitList.removeElement(cw);
   }

   protected synchronized void clear() {
      this._waitList = new Vector<ConnectionWaiter>();
   }

   protected synchronized void notify(boolean connected) {
      if ((Galaxy.getDebugLevel() & 16384) > 0 && this._waitList.size() > 0) {
         System.out.println(this._parent + ": notify(" + connected + ")");
      }

      for (int i = this._waitList.size() - 1; i >= 0; i--) {
         ConnectionWaiter cw = this._waitList.elementAt(i);
         if ((Galaxy.getDebugLevel() & 16384) > 0) {
            System.out.println("\tnotifying " + cw);
         }

         cw.connectionCallback(this._parent, connected);
         this._waitList.removeElementAt(i);
      }
   }
}