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/*-
* ============LICENSE_START=======================================================
* org.onap.dcaegen2.collectors.ves
* ================================================================================
* Copyright (C) 2017,2020 AT&T Intellectual Property. All rights reserved.
* Copyright (C) 2018,2020 Nokia. 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.dcae.common.publishing;
import com.att.nsa.cambria.client.CambriaBatchingPublisher;
import com.att.nsa.clock.SaClock;
import com.att.nsa.logging.LoggingContext;
import com.att.nsa.logging.log4j.EcompFields;
import io.vavr.collection.Map;
import io.vavr.control.Try;
import org.onap.dcae.common.VESLogger;
import org.onap.dcae.common.model.VesEvent;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import static org.onap.dcae.common.publishing.VavrUtils.f;
/**
* @author Pawel Szalapski (pawel.szalapski@nokia.com)
*/
public class DMaaPEventPublisher {
private static final int PENDING_MESSAGE_LOG_THRESHOLD = 100;
private static final Logger log = LoggerFactory.getLogger(DMaaPEventPublisher.class);
private DMaaPPublishersCache publishersCache;
private final Logger outputLogger = LoggerFactory.getLogger("org.onap.dcae.common.output");
DMaaPEventPublisher(DMaaPPublishersCache publishersCache) {
this.publishersCache = publishersCache;
}
public DMaaPEventPublisher(Map<String, PublisherConfig> dMaaPConfig) {
this(new DMaaPPublishersCache(dMaaPConfig));
}
/**
* Reload Dmaap configuration
* @param dmaapConfiguration Dmaap configuration
*/
public void reload(Map<String, PublisherConfig> dmaapConfiguration){
this.publishersCache = new DMaaPPublishersCache(dmaapConfiguration);
}
public void sendEvent(VesEvent vesEvent, String dmaapId){
clearVesUniqueIdFromEvent(vesEvent);
publishersCache.getPublisher(dmaapId)
.onEmpty(() ->
log.warn(f("Could not find event publisher for domain: '%s', dropping message: '%s'", dmaapId, vesEvent)))
.forEach(publisher -> sendEvent(vesEvent, dmaapId, publisher));
}
private void sendEvent(VesEvent event, String dmaapId, CambriaBatchingPublisher publisher) {
Try.run(() -> uncheckedSendEvent(event, dmaapId, publisher))
.onFailure(exc -> closePublisher(event, dmaapId, exc));
}
private void uncheckedSendEvent(VesEvent event, String dmaapId, CambriaBatchingPublisher publisher)
throws IOException {
String pk = event.getPK();
int pendingMsgs = publisher.send(pk, event.asJsonObject().toString());
if (pendingMsgs > PENDING_MESSAGE_LOG_THRESHOLD) {
log.info("Pending messages count: " + pendingMsgs);
}
String infoMsg = f("Event: '%s' scheduled to be send asynchronously on domain: '%s'", event, dmaapId);
log.info(infoMsg);
outputLogger.info(infoMsg);
}
private void closePublisher(VesEvent event, String dmaapId, Throwable e) {
log.error(f("Unable to schedule event: '%s' on domain: '%s'. Closing publisher and dropping message.",
event, dmaapId), e);
publishersCache.closePublisherFor(dmaapId);
}
private void clearVesUniqueIdFromEvent(VesEvent event) {
if (event.hasType(VesEvent.VES_UNIQUE_ID)) {
String uuid = event.getUniqueId().toString();
LoggingContext localLC = VESLogger.getLoggingContextForThread(uuid);
localLC.put(EcompFields.kBeginTimestampMs, SaClock.now());
log.debug("Removing VESuniqueid object from event");
event.removeElement(VesEvent.VES_UNIQUE_ID);
}
}
}
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