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.devicemanager.config.util;
20 import java.util.ArrayList;
21 import java.util.List;
22 import javax.annotation.Nonnull;
23 import org.onap.ccsdk.features.sdnr.wt.devicemanager.base.internalTypes.FileWatchdog;
24 import org.onap.ccsdk.features.sdnr.wt.devicemanager.base.internalTypes.IniConfigurationFile;
25 import org.onap.ccsdk.features.sdnr.wt.devicemanager.base.internalTypes.IniConfigurationFile.ConfigurationException;
26 import org.onap.ccsdk.features.sdnr.wt.devicemanager.config.IConfigChangedListener;
27 import org.slf4j.Logger;
28 import org.slf4j.LoggerFactory;
30 public class ConfigFileObserver extends FileWatchdog {
32 private static final Logger LOG = LoggerFactory.getLogger(ConfigFileObserver.class);
34 private final List<IConfigChangedListener> mConfigChangedHandlers = new ArrayList<>();
35 private final IniConfigurationFile mConfig;
37 public ConfigFileObserver(String filename, long pollIntervallMs, IniConfigurationFile mConfig) {
39 this.setDelay(pollIntervallMs);
40 this.mConfig = mConfig;
44 protected void doOnChange() {
46 LOG.debug("property file has changed");
49 // push event to all listeners
50 for (IConfigChangedListener listener : this.mConfigChangedHandlers) {
51 listener.onConfigChanged();
53 } catch (ConfigurationException e) {
54 LOG.warn("error reloading config: " + e.getMessage());
58 public void registerConfigChangedListener(@Nonnull IConfigChangedListener l) {
59 if (!this.mConfigChangedHandlers.contains(l)) {
60 this.mConfigChangedHandlers.add(l);
64 public void unregisterConfigChangedListener(IConfigChangedListener l) {
65 this.mConfigChangedHandlers.remove(l);