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/*
* ============LICENSE_START=======================================================
* PNF-REGISTRATION-HANDLER
* ================================================================================
* Copyright (C) 2018 NOKIA Intellectual Property. 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.
* ============LICENSE_END=========================================================
*/
package org.onap.dcaegen2.services.prh.tasks;
import static org.onap.dcaegen2.services.prh.model.logging.MdcVariables.INSTANCE_UUID;
import static org.onap.dcaegen2.services.prh.model.logging.MdcVariables.RESPONSE_CODE;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.CountDownLatch;
import javax.net.ssl.SSLException;
import org.onap.dcaegen2.services.prh.exceptions.DmaapEmptyResponseException;
import org.onap.dcaegen2.services.prh.exceptions.PrhTaskException;
import org.onap.dcaegen2.services.prh.model.ConsumerDmaapModel;
import org.onap.dcaegen2.services.prh.model.logging.MdcVariables;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.MDC;
import org.slf4j.Marker;
import org.slf4j.MarkerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Component;
import reactor.core.publisher.Mono;
/**
* @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 3/23/18
*/
@Component
public class ScheduledTasks {
private static final Logger logger = LoggerFactory.getLogger(ScheduledTasks.class);
private static final Marker INVOKE = MarkerFactory.getMarker("INVOKE");
private final DmaapConsumerTask dmaapConsumerTask;
private final DmaapPublisherTask dmaapProducerTask;
private final AaiProducerTask aaiProducerTask;
private Map<String, String> mdcContextMap;
/**
* Constructor for tasks registration in PRHWorkflow.
*
* @param dmaapConsumerTask - fist task
* @param dmaapPublisherTask - third task
* @param aaiPublisherTask - second task
*/
@Autowired
public ScheduledTasks(DmaapConsumerTask dmaapConsumerTask, DmaapPublisherTask dmaapPublisherTask,
AaiProducerTask aaiPublisherTask, Map<String, String> mdcContextMap) {
this.dmaapConsumerTask = dmaapConsumerTask;
this.dmaapProducerTask = dmaapPublisherTask;
this.aaiProducerTask = aaiPublisherTask;
this.mdcContextMap = mdcContextMap;
}
/**
* Main function for scheduling prhWorkflow.
*/
public void scheduleMainPrhEventTask() {
MdcVariables.setMdcContextMap(mdcContextMap);
try {
logger.trace("Execution of tasks was registered");
CountDownLatch mainCountDownLatch = new CountDownLatch(1);
consumeFromDMaaPMessage()
.doOnError(DmaapEmptyResponseException.class, error ->
logger.warn("Nothing to consume from DMaaP")
)
.flatMap(this::publishToAaiConfiguration)
.flatMap(this::publishToDmaapConfiguration)
.doOnTerminate(mainCountDownLatch::countDown)
.subscribe(this::onSuccess, this::onError, this::onComplete);
mainCountDownLatch.await();
} catch (InterruptedException e) {
logger.warn("Interruption problem on countDownLatch ", e);
Thread.currentThread().interrupt();
}
}
private void onComplete() {
logger.info("PRH tasks have been completed");
}
private void onSuccess(ResponseEntity<String> responseCode) {
MDC.put(RESPONSE_CODE, responseCode.getStatusCode().toString());
logger.info("Prh consumed tasks successfully. HTTP Response code from DMaaPProducer {}",
responseCode.getStatusCode().value());
MDC.remove(RESPONSE_CODE);
}
private void onError(Throwable throwable) {
if (!(throwable instanceof DmaapEmptyResponseException)) {
logger.warn("Chain of tasks have been aborted due to errors in PRH workflow", throwable);
}
}
private Mono<ConsumerDmaapModel> consumeFromDMaaPMessage() {
return Mono.defer(() -> {
MdcVariables.setMdcContextMap(mdcContextMap);
MDC.put(INSTANCE_UUID, UUID.randomUUID().toString());
logger.info(INVOKE, "Init configs");
dmaapConsumerTask.initConfigs();
return dmaapConsumerTask.execute("");
});
}
private Mono<ConsumerDmaapModel> publishToAaiConfiguration(ConsumerDmaapModel monoDMaaPModel) {
try {
return aaiProducerTask.execute(monoDMaaPModel);
} catch (PrhTaskException | SSLException e) {
return Mono.error(e);
}
}
private Mono<ResponseEntity<String>> publishToDmaapConfiguration(ConsumerDmaapModel monoAaiModel) {
try {
return dmaapProducerTask.execute(monoAaiModel);
} catch (PrhTaskException e) {
return Mono.error(e);
}
}
}
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