nbinotifications/src/main/java/org/opendaylight/transportpce/nbinotifications/producer/Publisher.java

   1 /*
   2  * Copyright © 2020 Orange, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.transportpce.nbinotifications.producer;
   9
  10 import com.google.common.annotations.VisibleForTesting;
  11 import java.util.Properties;
  12 import org.apache.kafka.clients.producer.KafkaProducer;
  13 import org.apache.kafka.clients.producer.Producer;
  14 import org.apache.kafka.clients.producer.ProducerConfig;
  15 import org.apache.kafka.clients.producer.ProducerRecord;
  16 import org.apache.kafka.common.serialization.StringSerializer;
  17 import org.opendaylight.transportpce.common.converter.JsonStringConverter;
  18 import org.opendaylight.transportpce.nbinotifications.serialization.ConfigConstants;
  19 import org.opendaylight.transportpce.nbinotifications.serialization.NotificationServiceSerializer;
  20 import org.opendaylight.transportpce.nbinotifications.utils.NbiNotificationsUtils;
  21 import org.opendaylight.yang.gen.v1.nbi.notifications.rev201130.NotificationService;
  22 import org.slf4j.Logger;
  23 import org.slf4j.LoggerFactory;
  24
  25 public class Publisher {
  26     private static final Logger LOG = LoggerFactory.getLogger(Publisher.class);
  27
  28     private final String id;
  29     private final Producer<String, NotificationService> producer;
  30
  31     public Publisher(String id, String publisherServer, JsonStringConverter<NotificationService> serializer) {
  32         Properties properties = NbiNotificationsUtils.loadProperties("publisher.properties");
  33         properties.put(ProducerConfig.CLIENT_ID_CONFIG, id);
  34         if (publisherServer != null && !publisherServer.isBlank()) {
  35             properties.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, publisherServer);
  36         }
  37         properties.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
  38         properties.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG , NotificationServiceSerializer.class);
  39         properties.put(ConfigConstants.CONVERTER , serializer);
  40         LOG.info("Creationg publisher for id {} with properties {}", id, properties);
  41         producer = new KafkaProducer<>(properties);
  42         this.id = id;
  43     }
  44
  45     @VisibleForTesting Publisher(String id, Producer<String, NotificationService> producer) {
  46         this.producer = producer;
  47         this.id = id;
  48     }
  49
  50     public void close() {
  51         producer.close();
  52     }
  53
  54     public void sendEvent(NotificationService notificationService) {
  55         LOG.info("SendEvent request to topic '{}' ", notificationService.getConnectionType().getName());
  56         producer.send(new ProducerRecord<>(notificationService.getConnectionType().getName(), id, notificationService));
  57         producer.flush();
  58     }
  59 }