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.commons.io.input;
018
019/**
020 * {@link TailerListener} Adapter.
021 *
022 * @version $Id: TailerListenerAdapter.java 1415850 2012-11-30 20:51:39Z ggregory $
023 * @since 2.0
024 */
025public class TailerListenerAdapter implements TailerListener {
026
027    /**
028     * The tailer will call this method during construction,
029     * giving the listener a method of stopping the tailer.
030     * @param tailer the tailer.
031     */
032    public void init(final Tailer tailer) {
033    }
034
035    /**
036     * This method is called if the tailed file is not found.
037     */
038    public void fileNotFound() {
039    }
040
041    /**
042     * Called if a file rotation is detected.
043     *
044     * This method is called before the file is reopened, and fileNotFound may
045     * be called if the new file has not yet been created.
046     */
047    public void fileRotated() {
048    }
049
050    /**
051     * Handles a line from a Tailer.
052     * @param line the line.
053     */
054    public void handle(final String line) {
055    }
056
057    /**
058     * Handles an Exception .
059     * @param ex the exception.
060     */
061    public void handle(final Exception ex) {
062    }
063
064}