/**
    * Logback: the reliable, generic, fast and flexible logging framework.
    * Copyright (C) 1999-2015, 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.joran.util;
  
  import ch.qos.logback.core.Context;
  import ch.qos.logback.core.CoreConstants;
  import ch.qos.logback.core.joran.spi.ConfigurationWatchList;
  import ch.qos.logback.core.status.InfoStatus;
  import ch.qos.logback.core.status.Status;
  import ch.qos.logback.core.status.StatusManager;
  import ch.qos.logback.core.status.WarnStatus;
  
  import java.net.URL;
  
  /**
   * @author Ceki Gülcü
   */
  public class ConfigurationWatchListUtil {
  
      final static ConfigurationWatchListUtil origin = new ConfigurationWatchListUtil();
  
      private ConfigurationWatchListUtil() {
      }
  
      public static void registerConfigurationWatchList(Context context, ConfigurationWatchList cwl) {
          context.putObject(CoreConstants.CONFIGURATION_WATCH_LIST, cwl);
      }
  
      public static void setMainWatchURL(Context context, URL url) {
          ConfigurationWatchList cwl = getConfigurationWatchList(context);
          if (cwl == null) {
              cwl = new ConfigurationWatchList();
              cwl.setContext(context);
              context.putObject(CoreConstants.CONFIGURATION_WATCH_LIST, cwl);
          } else {
              cwl.clear();
          }
          // setConfigurationWatchListResetFlag(context, true);
          cwl.setMainURL(url);
      }
  
      public static URL getMainWatchURL(Context context) {
          ConfigurationWatchList cwl = getConfigurationWatchList(context);
          if (cwl == null) {
              return null;
          } else {
              return cwl.getMainURL();
          }
      }
  
      public static void addToWatchList(Context context, URL url) {
          ConfigurationWatchList cwl = getConfigurationWatchList(context);
          if (cwl == null) {
              addWarn(context, "Null ConfigurationWatchList. Cannot add " + url);
          } else {
              addInfo(context, "Adding [" + url + "] to configuration watch list.");
              cwl.addToWatchList(url);
          }
      }
  
  //    public static boolean wasConfigurationWatchListReset(Context context) {
  //        Object o = context.getObject(CoreConstants.CONFIGURATION_WATCH_LIST_RESET);
  //        if (o == null)
  //            return false;
  //        else {
  //            return ((Boolean) o).booleanValue();
  //        }
  //    }
  
  //    public static void setConfigurationWatchListResetFlag(Context context, boolean val) {
  //        context.putObject(CoreConstants.CONFIGURATION_WATCH_LIST_RESET, new Boolean(val));
  //    }
  
      public static ConfigurationWatchList getConfigurationWatchList(Context context) {
          return (ConfigurationWatchList) context.getObject(CoreConstants.CONFIGURATION_WATCH_LIST);
      }
  
      static void addStatus(Context context, Status s) {
          if (context == null) {
              System.out.println("Null context in " + ConfigurationWatchList.class.getName());
              return;
          }
          StatusManager sm = context.getStatusManager();
          if (sm == null)
              return;
          sm.add(s);
      }
  
     static void addInfo(Context context, String msg) {
         addStatus(context, new InfoStatus(msg, origin));
     }
 
     static void addWarn(Context context, String msg) {
         addStatus(context, new WarnStatus(msg, origin));
     }
 }