/**
    * Logback: the reliable, generic, fast and flexible logging framework.
    * Copyright (C) 1999-2011, QOS.ch. All rights reserved.
    *
    * This program and the accompanying materials are dual-licensed under
    * either the terms of the Eclipse Public License v1.0 as published by
    * the Eclipse Foundation
    *
    *   or (per the licensee's choosing)
   *
   * under the terms of the GNU Lesser General Public License version 2.1
   * as published by the Free Software Foundation.
   */
  package ch.qos.logback.core.sift;
  
  import java.util.List;
  
  import ch.qos.logback.core.Appender;
  import ch.qos.logback.core.CoreConstants;
  
  public interface AppenderTracker<E> {
  
    static int THRESHOLD = 30 * 60 * CoreConstants.MILLIS_IN_ONE_SECOND; // 30 minutes
  
    void put(String key, Appender<E> value, long timestamp);
    Appender<E> get(String key, long timestamp);
    void stopStaleAppenders(long timestamp);
    List<String> keyList();
    List<Appender<E>> valueList();
    void stopAndRemoveNow(String key);
  }