    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 * @since 2.0
    023 */
    024public class TailerListenerAdapter implements TailerListener {
    025
    026    /**
    027     * Called each time the Tailer reaches the end of the file.
    028     *
    029     * <b>Note:</b> this is called from the tailer thread.
    030     *
    031     * Note: a future version of commons-io will pull this method up to the TailerListener interface,
    032     * for now clients must subclass this class to use this feature.
    033     *
    034     * @since 2.5
    035     */
    036    public void endOfFileReached() {
    037        // noop
    038    }
    039
    040    /**
    041     * This method is called if the tailed file is not found.
    042     */
    043    @Override
    044    public void fileNotFound() {
    045        // noop
    046    }
    047
    048    /**
    049     * Called if a file rotation is detected.
    050     *
    051     * This method is called before the file is reopened, and fileNotFound may
    052     * be called if the new file has not yet been created.
    053     */
    054    @Override
    055    public void fileRotated() {
    056        // noop
    057    }
    058
    059    /**
    060     * Handles an Exception .
    061     * @param ex the exception.
    062     */
    063    @Override
    064    public void handle(final Exception ex) {
    065        // noop
    066    }
    067
    068    /**
    069     * Handles a line from a Tailer.
    070     * @param line the line.
    071     */
    072    @Override
    073    public void handle(final String line) {
    074        // noop
    075    }
    076
    077    /**
    078     * The tailer will call this method during construction,
    079     * giving the listener a method of stopping the tailer.
    080     * @param tailer the tailer.
    081     */
    082    @Override
    083    public void init(final Tailer tailer) {
    084        // noop
    085    }
    086}