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.classic.joran.action;

import org.xml.sax.Attributes;

import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.Logger;
import ch.qos.logback.classic.LoggerContext;
import ch.qos.logback.core.joran.action.Action;
import ch.qos.logback.core.joran.action.ActionConst;
import ch.qos.logback.core.joran.spi.InterpretationContext;
import ch.qos.logback.core.util.OptionHelper;

public class RootLoggerAction extends Action {

    Logger root;
    boolean inError = false;

    public void begin(InterpretationContext ec, String name, Attributes attributes) {
        inError = false;

        LoggerContext loggerContext = (LoggerContext) this.context;
        root = loggerContext.getLogger(Logger.ROOT_LOGGER_NAME);

        String levelStr = ec.subst(attributes.getValue(ActionConst.LEVEL_ATTRIBUTE));
        if (!OptionHelper.isEmpty(levelStr)) {
            Level level = Level.toLevel(levelStr);
            addInfo("Setting level of ROOT logger to " + level);
            root.setLevel(level);
        }
        ec.pushObject(root);
    }

    public void end(InterpretationContext ec, String name) {
        if (inError) {
            return;
        }
        Object o = ec.peekObject();
        if (o != root) {
            addWarn("The object on the top the of the stack is not the root logger");
            addWarn("It is: " + o);
        } else {
            ec.popObject();
        }
    }

    public void finish(InterpretationContext ec) {
    }
}