2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
6 * Copyright © 2017-2018 Amdocs
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END=========================================================
21 package org.onap.crud.util;
24 import java.util.TimerTask;
26 public abstract class FileWatcher extends TimerTask {
27 private long timeStamp;
30 public FileWatcher(File file) {
32 this.timeStamp = file.lastModified();
35 public final void run() {
36 long timeStamp = file.lastModified();
38 if ((timeStamp - this.timeStamp) > 500) {
39 this.timeStamp = timeStamp;
44 protected abstract void onChange(File file);