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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2021 China Mobile.
* Copyright (C) 2022 Wipro Limited.
* Copyright (C) 2023 Deutsche Telekom AG. All rights reserved.
* ================================================================================
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.dcaegen2.kpi.dmaap;
import com.att.nsa.cambria.client.CambriaConsumer;
import java.util.Map;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import javax.annotation.PostConstruct;
import org.onap.dcaegen2.kpi.models.Configuration;
import org.onap.dcaegen2.kpi.utils.DmaapUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
/**
* This class initializes and starts the dmaap client to listen on application
* required dmaap events.
*/
@Component
public class DmaapClient {
private Configuration configuration;
private static Logger log = LoggerFactory.getLogger(DmaapClient.class);
private DmaapUtils dmaapUtils;
/**
* init dmaap client.
*/
@PostConstruct
public void initClient() {
log.debug("initializing client");
dmaapUtils = new DmaapUtils();
configuration = Configuration.getInstance();
if (log.isDebugEnabled()) {
log.debug(configuration.toString());
}
startClient();
}
/**
* start dmaap client.
*/
@SuppressWarnings("unchecked")
public synchronized void startClient() {
Map<String, Object> streamSubscribes = configuration.getStreamsSubscribes();
String pmTopicUrl = ((Map<String, String>) ((Map<String, Object>) streamSubscribes
.get("performance_management_topic")).get("dmaap_info")).get("topic_url");
String[] pmTopicSplit = pmTopicUrl.split("\\/");
String pmTopic = pmTopicSplit[pmTopicSplit.length - 1];
log.debug("pm topic : {}", pmTopic);
CambriaConsumer pmNotifCambriaConsumer = dmaapUtils.buildConsumer(configuration, pmTopic);
ScheduledExecutorService executorPool;
// create notification consumers for PM
NotificationConsumer pmNotificationConsumer = new NotificationConsumer(pmNotifCambriaConsumer,
new KpiComputationCallBack());
// start pm notification consumer threads
executorPool = Executors.newScheduledThreadPool(10);
executorPool.scheduleAtFixedRate(pmNotificationConsumer, 0, configuration.getPollingInterval(),
TimeUnit.SECONDS);
}
}
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