/*
- * Copyright 2017 ZTE Corporation.
+ * Copyright 2017 - 2021 ZTE Corporation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
import javax.annotation.PreDestroy;
import javax.inject.Inject;
import lombok.extern.slf4j.Slf4j;
import org.jvnet.hk2.annotations.Service;
+import org.onap.holmes.common.utils.DbDaoUtil;
import org.onap.holmes.dsa.dmaappolling.Subscriber;
+import org.onap.holmes.engine.db.AlarmInfoDao;
import org.onap.holmes.engine.manager.DroolsEngine;
@Service
@Inject
private DroolsEngine droolsEngine;
+ @Inject
+ private DbDaoUtil daoUtil;
private HashMap<String, DMaaPAlarmPolling> pollingTasks = new HashMap<>();
public synchronized void addSubscriber(Subscriber subscriber) {
- if (!pollingTasks.containsKey(subscriber.getTopic())) {
- DMaaPAlarmPolling pollingTask = new DMaaPAlarmPolling(subscriber, droolsEngine);
+ String topic = subscriber.getTopic();
+ if (topic != null) {
+ if (pollingTasks.containsKey(topic)) {
+ removeSubscriber(subscriber);
+ }
+ AlarmInfoDao alarmInfoDao = daoUtil.getJdbiDaoByOnDemand(AlarmInfoDao.class);
+ DMaaPAlarmPolling pollingTask = new DMaaPAlarmPolling(subscriber, droolsEngine, alarmInfoDao);
Thread thread = new Thread(pollingTask);
thread.start();
- pollingTasks.put(subscriber.getTopic(), pollingTask);
- log.info("Subscribe to topic: " + subscriber.getUrl());
+ pollingTasks.put(topic, pollingTask);
+ log.info("Subscribed to topic: " + subscriber.getUrl());
+ } else {
+ log.info("The topic is null. Operation aborted.");
}
}
public synchronized void removeSubscriber(Subscriber subscriber) {
- if (pollingTasks.containsKey(subscriber.getTopic())) {
- pollingTasks.get(subscriber.getTopic()).stopTask();
- pollingTasks.remove(subscriber.getTopic());
+ String topic = subscriber.getTopic();
+ if (topic != null && pollingTasks.containsKey(topic)) {
+ pollingTasks.get(topic).stopTask();
+ pollingTasks.remove(topic);
}
log.info("Topic unsubscribed: " + subscriber.getUrl());
}