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/*-
* ============LICENSE_START=======================================================
* org.onap.dcaegen2.collectors.restconf
* ================================================================================
* Copyright (C) 2018 Huawei. 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.collectors.restconf.common.event.publishing;
import com.att.nsa.cambria.client.CambriaBatchingPublisher;
import io.vavr.control.Try;
import org.json.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
public class DMaaPEventPublisher implements EventPublisher {
private static final int PENDING_MESSAGE_LOG_THRESHOLD = 100;
private static final Logger log = LoggerFactory.getLogger(DMaaPEventPublisher.class);
private final DMaaPPublishersCache publishersCache;
private final Logger outputLogger;
DMaaPEventPublisher(DMaaPPublishersCache DMaaPPublishersCache,
Logger outputLogger) {
this.publishersCache = DMaaPPublishersCache;
this.outputLogger = outputLogger;
}
@Override
public void sendEvent(JSONObject event, String domain) {
publishersCache.getPublisher(domain)
.onEmpty(() ->
log.warn(VavrUtils.f("Could not find event publisher for domain: '%s', dropping message: '%s'", domain, event)))
.forEach(publisher -> sendEvent(event, domain, publisher));
}
private void sendEvent(JSONObject event, String domain, CambriaBatchingPublisher publisher) {
Try.run(() -> uncheckedSendEvent(event, domain, publisher))
.onFailure(exc -> closePublisher(event, domain, exc));
}
private void uncheckedSendEvent(JSONObject event, String domain, CambriaBatchingPublisher publisher)
throws IOException {
System.out.println("printing publisher information" + publisher);
int pendingMsgs = publisher.send("MyPartitionKey", event.toString());
if (pendingMsgs > PENDING_MESSAGE_LOG_THRESHOLD) {
log.info("Pending messages count: " + pendingMsgs);
}
String infoMsg = VavrUtils.f("Event: '%s' scheduled to be send asynchronously on domain: '%s'", event, domain);
log.info(infoMsg);
outputLogger.info(infoMsg);
}
private void closePublisher(JSONObject event, String domain, Throwable e) {
log.error(VavrUtils.f("Unable to schedule event: '%s' on domain: '%s'. Closing publisher and dropping message.",
event, domain), e);
publishersCache.closePublisherFor(domain);
}
}
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