1 /*******************************************************************************
2 * ============LICENSE_START========================================================================
3 * ONAP : ccsdk feature sdnr wt
4 * =================================================================================================
5 * Copyright (C) 2019 highstreet technologies GmbH Intellectual Property. All rights reserved.
6 * =================================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
8 * in compliance with the License. You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software distributed under the License
13 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
14 * or implied. See the License for the specific language governing permissions and limitations under
16 * ============LICENSE_END==========================================================================
17 ******************************************************************************/
18 package org.onap.ccsdk.features.sdnr.wt.common.configuration.filechange;
20 import java.util.ArrayList;
21 import java.util.List;
23 import javax.annotation.Nonnull;
25 import org.onap.ccsdk.features.sdnr.wt.common.file.FileWatchdog;
26 import org.slf4j.Logger;
27 import org.slf4j.LoggerFactory;
29 public class ConfigFileObserver extends FileWatchdog {
31 private static final Logger LOG = LoggerFactory.getLogger(ConfigFileObserver.class);
33 private final List<IConfigChangedListener> mConfigChangedHandlers = new ArrayList<>();
35 public ConfigFileObserver(String filename, long pollIntervallMs) {
37 this.setDelay(pollIntervallMs);
41 protected void doOnChange() {
42 LOG.debug("property file has changed");
43 for (IConfigChangedListener listener : this.mConfigChangedHandlers) {
44 listener.onConfigChanged();
48 public void registerConfigChangedListener(@Nonnull IConfigChangedListener l) {
49 if (!this.mConfigChangedHandlers.contains(l)) {
50 this.mConfigChangedHandlers.add(l);
54 public void unregisterConfigChangedListener(IConfigChangedListener l) {
55 this.mConfigChangedHandlers.remove(l);