2 * ========================LICENSE_START=================================
5 * Copyright (C) 2021 Nordix Foundation
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ========================LICENSE_END===================================
21 package org.oran.dmaapadapter;
25 import org.slf4j.Logger;
26 import org.slf4j.LoggerFactory;
27 import org.springframework.beans.factory.annotation.Value;
28 import org.springframework.boot.ApplicationArguments;
29 import org.springframework.boot.SpringApplication;
30 import org.springframework.boot.autoconfigure.SpringBootApplication;
31 import org.springframework.boot.context.properties.EnableConfigurationProperties;
32 import org.springframework.context.ConfigurableApplicationContext;
33 import org.springframework.scheduling.annotation.EnableScheduling;
34 import org.springframework.scheduling.annotation.Scheduled;
36 @SpringBootApplication
37 @EnableConfigurationProperties
39 public class Application {
41 private static final Logger logger = LoggerFactory.getLogger(Application.class);
43 @Value("${app.configuration-filepath}")
44 private String localConfigurationFilePath;
46 private long configFileLastModification = 0;
47 private static ConfigurableApplicationContext applicationContext;
49 public static void main(String[] args) {
50 applicationContext = SpringApplication.run(Application.class);
53 @Scheduled(fixedRate = 10 * 1000)
54 public void checkConfigFileChanges() {
55 long timestamp = new File(localConfigurationFilePath).lastModified();
56 if (configFileLastModification != 0 && timestamp != configFileLastModification) {
57 logger.info("Restarting due to change in the file {}", localConfigurationFilePath);
60 configFileLastModification = timestamp;
63 private static void restartApplication() {
64 if (applicationContext == null) {
65 logger.info("Cannot restart in unittest");
68 ApplicationArguments args = applicationContext.getBean(ApplicationArguments.class);
70 Thread thread = new Thread(() -> {
71 applicationContext.close();
72 applicationContext = SpringApplication.run(Application.class, args.getSourceArgs());
75 thread.setDaemon(false);