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.commons.io.input; 18 19 /** 20 * {@link TailerListener} Adapter. 21 * 22 * @since 2.0 23 */ 24 public class TailerListenerAdapter implements TailerListener { 25 26 /** 27 * Called each time the Tailer reaches the end of the file. 28 * 29 * <b>Note:</b> this is called from the tailer thread. 30 * 31 * Note: a future version of commons-io will pull this method up to the TailerListener interface, 32 * for now clients must subclass this class to use this feature. 33 * 34 * @since 2.5 35 */ endOfFileReached()36 public void endOfFileReached() { 37 // noop 38 } 39 40 /** 41 * This method is called if the tailed file is not found. 42 */ 43 @Override fileNotFound()44 public void fileNotFound() { 45 // noop 46 } 47 48 /** 49 * Called if a file rotation is detected. 50 * 51 * This method is called before the file is reopened, and fileNotFound may 52 * be called if the new file has not yet been created. 53 */ 54 @Override fileRotated()55 public void fileRotated() { 56 // noop 57 } 58 59 /** 60 * Handles an Exception . 61 * @param ex the exception. 62 */ 63 @Override handle(final Exception ex)64 public void handle(final Exception ex) { 65 // noop 66 } 67 68 /** 69 * Handles a line from a Tailer. 70 * @param line the line. 71 */ 72 @Override handle(final String line)73 public void handle(final String line) { 74 // noop 75 } 76 77 /** 78 * The tailer will call this method during construction, 79 * giving the listener a method of stopping the tailer. 80 * @param tailer the tailer. 81 */ 82 @Override init(final Tailer tailer)83 public void init(final Tailer tailer) { 84 // noop 85 } 86 } 87