2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
6 * Copyright © 2017-2018 Amdocs
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END=========================================================
21 package org.onap.crud.service;
23 import java.util.Objects;
24 import java.util.TimerTask;
25 import org.onap.aai.cl.api.Logger;
26 import org.onap.aai.cl.eelf.LoggerFactory;
27 import org.onap.aai.event.api.EventConsumer;
28 import org.onap.crud.logging.CrudServiceMsgs;
30 public class CrudAsyncResponseConsumer extends TimerTask {
32 private static Logger logger = LoggerFactory.getInstance().getLogger(CrudAsyncResponseConsumer
35 private final EventConsumer asyncResponseConsumer;
36 private final GraphEventUpdater graphEventUpdater;
39 public CrudAsyncResponseConsumer(EventConsumer asyncResponseConsumer, GraphEventUpdater graphEventUpdater) {
40 Objects.requireNonNull(asyncResponseConsumer);
41 Objects.requireNonNull(graphEventUpdater);
42 this.asyncResponseConsumer = asyncResponseConsumer;
43 this.graphEventUpdater = graphEventUpdater;
44 logger.info(CrudServiceMsgs.ASYNC_RESPONSE_CONSUMER_INFO,
45 "CrudAsyncResponseConsumer initialized SUCCESSFULLY! with event consumer "
46 + asyncResponseConsumer.getClass().getName());
53 logger.info(CrudServiceMsgs.ASYNC_RESPONSE_CONSUMER_INFO, "Listening for graph events");
56 Iterable<String> events = asyncResponseConsumer.consume();
57 processEvents(events);
58 asyncResponseConsumer.commitOffsets();
59 } catch (Exception e) {
60 logger.error(CrudServiceMsgs.ASYNC_RESPONSE_CONSUMER_ERROR, e, e.getMessage());
64 private void processEvents(Iterable<String> events) {
65 if (areEventsAvailable(events)) {
66 for (String event : events) {
67 graphEventUpdater.update(event);
69 logger.info(CrudServiceMsgs.ASYNC_RESPONSE_CONSUMER_INFO, "No events recieved");
71 logger.info(CrudServiceMsgs.ASYNC_RESPONSE_CONSUMER_INFO, "No events recieved");
75 private boolean areEventsAvailable(Iterable<String> events) {
76 return !(events == null || !events.iterator().hasNext());