- Timestamp:
- 09/24/15 10:59:05 (9 years ago)
- File:
-
- 1 edited
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trunk/CrossPare/src/de/ugoe/cs/cpdp/decentApp/FileWatcher.java
r32 r41 1 // Copyright 2015 Georg-August-Universität Göttingen, Germany 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 1 15 package de.ugoe.cs.cpdp.decentApp; 2 16 … … 8 22 * 9 23 * @author Philip Makedonski 10 * 24 * 11 25 */ 12 26 public abstract class FileWatcher extends TimerTask { 13 // Last timestamp 14 private long timeStamp; 15 16 // File to watch 17 private File file; 27 // Last timestamp 28 private long timeStamp; 18 29 19 /** 20 * Constructor 21 * @param file 22 */ 23 public FileWatcher(File file) { 24 this.file = file; 25 this.timeStamp = file.lastModified(); 26 } 30 // File to watch 31 private File file; 27 32 28 /** 29 * Watches a file and executes the onChange Method 30 * if a file is changed 31 */ 32 public final void run() { 33 long timeStamp = file.lastModified(); 33 /** 34 * Constructor 35 * 36 * @param file 37 */ 38 public FileWatcher(File file) { 39 this.file = file; 40 this.timeStamp = file.lastModified(); 41 } 34 42 35 if (this.timeStamp != timeStamp) { 36 this.timeStamp = timeStamp; 37 onChange(file); 38 } 39 } 43 /** 44 * Watches a file and executes the onChange Method if a file is changed 45 */ 46 public final void run() { 47 long timeStamp = file.lastModified(); 40 48 41 protected abstract void onChange(File file); 49 if (this.timeStamp != timeStamp) { 50 this.timeStamp = timeStamp; 51 onChange(file); 52 } 53 } 54 55 protected abstract void onChange(File file); 42 56 }
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