001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache license, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the license for the specific language governing permissions and
015 * limitations under the license.
016 */
017package org.apache.logging.log4j.status;
018
019import java.io.Closeable;
020import java.util.EventListener;
021
022import org.apache.logging.log4j.Level;
023
024/**
025 * Interface that allows implementers to be notified of events in the logging system.
026 */
027public interface StatusListener extends Closeable, EventListener {
028
029    /**
030     * Called as events occur to process the StatusData.
031     * @param data The StatusData for the event.
032     */
033    void log(StatusData data);
034
035    /**
036     * Return the Log Level that this listener wants included.
037     * @return the Log Level.
038     */
039    Level getStatusLevel();
040}