package at.gv.egovernment.moa.id.iaik.servertools.observer;

import iaik.servertools.observer.NotificationData;
import iaik.servertools.observer.Observable;
import iaik.servertools.observer.Observer;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;


/**
 * Implementation of interface <needed to initialize an IAIK JSSE <code>TrustManager</code>
 * @author Paul Ivancsics
 * @version $Id$
 */
public class ObservableImpl implements Observable {
  /** a List for all observers */
  private List observers = new ArrayList();

  /**
   * @see iaik.servertools.observer.Observable#addObserver(iaik.servertools.observer.Observable)
   */
  public void addObserver(Observer observer) {
    observers.add(observer);
  }

  /**
   * @see iaik.servertools.observer.Observable#removeObserver(iaik.servertools.observer.Observable)
   */
  public boolean removeObserver(Observer observer) {
    return observers.remove(observer);
  }

  /**
   * @see iaik.servertools.observer.Observable#notify(iaik.servertools.observer.NotificationData)
   */
  public void notify(NotificationData data) {
    Iterator iter = observers.iterator();
    for (iter = observers.iterator(); iter.hasNext();) {
      Observer observer = (Observer) iter.next();
      observer.notify(data);
    }
  }

}