2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright © 2017 AT&T Intellectual Property.
6 * Copyright © 2017 Amdocs
8 * ================================================================================
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
13 * http://www.apache.org/licenses/LICENSE-2.0
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
20 * ============LICENSE_END=========================================================
22 * ECOMP and OpenECOMP are trademarks
23 * and service marks of AT&T Intellectual Property.
25 package org.openecomp.datarouter.util;
28 import java.util.TimerTask;
30 public abstract class FileWatcher extends TimerTask {
31 private long timeStamp;
34 public FileWatcher(File file) {
36 this.timeStamp = file.lastModified();
39 public final void run() {
40 long timeStamp = file.lastModified();
42 if ((timeStamp - this.timeStamp) > 500) {
43 this.timeStamp = timeStamp;
48 protected abstract void onChange(File file);