    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     */
    017    package org.apache.logging.log4j.status;
    018
    019    import java.io.Closeable;
    020    import java.util.EventListener;
    021
    022    import org.apache.logging.log4j.Level;
    023
    024    /**
    025     * Interface that allows implementers to be notified of events in the logging system.
    026     */
    027    public 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    }