2 * ============LICENSE_START=======================================================
3 * ONAP : ccsdk features
4 * ================================================================================
5 * Copyright (C) 2019 highstreet technologies GmbH Intellectual Property.
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=========================================================
22 package org.onap.ccsdk.features.sdnr.wt.common.configuration.filechange;
24 import java.util.ArrayList;
25 import java.util.List;
27 import javax.annotation.Nonnull;
29 import org.onap.ccsdk.features.sdnr.wt.common.file.FileWatchdog;
30 import org.slf4j.Logger;
31 import org.slf4j.LoggerFactory;
33 public class ConfigFileObserver extends FileWatchdog {
35 private static final Logger LOG = LoggerFactory.getLogger(ConfigFileObserver.class);
37 private final List<IConfigChangedListener> mConfigChangedHandlers = new ArrayList<>();
39 public ConfigFileObserver(String filename, long pollIntervallMs) {
41 this.setDelay(pollIntervallMs);
45 protected void doOnChange() {
46 LOG.debug("property file has changed");
47 for (IConfigChangedListener listener : this.mConfigChangedHandlers) {
48 listener.onConfigChanged();
52 public void registerConfigChangedListener(@Nonnull IConfigChangedListener l) {
53 if (!this.mConfigChangedHandlers.contains(l)) {
54 this.mConfigChangedHandlers.add(l);
58 public void unregisterConfigChangedListener(IConfigChangedListener l) {
59 this.mConfigChangedHandlers.remove(l);