diff options
Diffstat (limited to 'engine-d/src/main/java/org/onap/holmes/engine/dmaappolling/SubscriberAction.java')
-rw-r--r-- | engine-d/src/main/java/org/onap/holmes/engine/dmaappolling/SubscriberAction.java | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/engine-d/src/main/java/org/onap/holmes/engine/dmaappolling/SubscriberAction.java b/engine-d/src/main/java/org/onap/holmes/engine/dmaappolling/SubscriberAction.java new file mode 100644 index 0000000..1e71899 --- /dev/null +++ b/engine-d/src/main/java/org/onap/holmes/engine/dmaappolling/SubscriberAction.java @@ -0,0 +1,51 @@ +/* + * Copyright 2017 ZTE Corporation. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.onap.holmes.engine.dmaappolling; + +import java.util.concurrent.ConcurrentHashMap; +import java.util.concurrent.Executors; +import java.util.concurrent.ScheduledExecutorService; +import java.util.concurrent.ScheduledFuture; +import java.util.concurrent.TimeUnit; +import javax.inject.Inject; +import org.jvnet.hk2.annotations.Service; +import org.onap.holmes.dsa.dmaappolling.Subscriber; +import org.onap.holmes.engine.manager.DroolsEngine; + +@Service +public class SubscriberAction { + + @Inject + private DroolsEngine droolsEngine; + + private ConcurrentHashMap<String, ScheduledFuture> pollingRequests = new ConcurrentHashMap<String, ScheduledFuture>(); + private ScheduledExecutorService service = Executors.newSingleThreadScheduledExecutor(); + + public void addSubscriber(Subscriber subscriber) { + DMaaPPollingRequest pollingTask = new DMaaPPollingRequest(subscriber, droolsEngine); + ScheduledFuture future = service + .scheduleAtFixedRate(pollingTask, 0, subscriber.getPeriod(), TimeUnit.MILLISECONDS); + pollingRequests.put(subscriber.getTopic(), future); + } + + public void removeSubscriber(Subscriber subscriber) { + ScheduledFuture future = pollingRequests.get(subscriber.getTopic()); + if (future != null) { + future.cancel(true); + } + pollingRequests.remove(subscriber.getTopic()); + } +} |