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.
/**
 * 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/**
 * @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));
    }
}