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    1   /*
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements. See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache license, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License. You may obtain a copy of the License at
    8    *
    9    *      http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the license for the specific language governing permissions and
    15   * limitations under the license.
    16   */
    17  package org.apache.logging.log4j.status;
    18
    19  import java.io.Closeable;
    20  import java.util.EventListener;
    21
    22  import org.apache.logging.log4j.Level;
    23
    24  /**
    25   * Interface that allows implementers to be notified of events in the logging system.
    26   */
    27  public interface StatusListener extends Closeable, EventListener {
    28
    29      /**
    30       * Called as events occur to process the StatusData.
    31       * @param data The StatusData for the event.
    32       */
    33      void log(StatusData data);
    34
    35      /**
    36       * Return the Log Level that this listener wants included.
    37       * @return the Log Level.
    38       */
    39      Level getStatusLevel();
    40  }