| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.ambari.server.events.publishers; |
| |
| import java.util.List; |
| import java.util.stream.Collectors; |
| |
| import org.apache.ambari.server.events.HostComponentUpdate; |
| import org.apache.ambari.server.events.HostComponentsUpdateEvent; |
| |
| import com.google.common.eventbus.EventBus; |
| import com.google.inject.Singleton; |
| |
| @Singleton |
| public class HostComponentUpdateEventPublisher extends BufferedUpdateEventPublisher<HostComponentsUpdateEvent> { |
| |
| @Override |
| public void mergeBufferAndPost(List<HostComponentsUpdateEvent> events, EventBus m_eventBus) { |
| List<HostComponentUpdate> hostComponentUpdates = events.stream().flatMap( |
| u -> u.getHostComponentUpdates().stream()).collect(Collectors.toList()); |
| |
| HostComponentsUpdateEvent resultEvents = new HostComponentsUpdateEvent(hostComponentUpdates); |
| //TODO add logging and metrics posting |
| m_eventBus.post(resultEvents); |
| } |
| } |