| /** |
| * Copyright 2016-present Open Networking Laboratory |
| * |
| * 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. |
| */ |
| |
| package org.onosproject.kafkaintegration.kafka; |
| |
| import java.util.Properties; |
| import java.util.concurrent.Future; |
| |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.apache.felix.scr.annotations.Service; |
| import org.apache.kafka.clients.producer.KafkaProducer; |
| import org.apache.kafka.clients.producer.ProducerRecord; |
| import org.apache.kafka.clients.producer.RecordMetadata; |
| import org.onosproject.kafkaintegration.api.KafkaPublisherService; |
| import org.onosproject.kafkaintegration.api.KafkaPublisherAdminService; |
| import org.onosproject.kafkaintegration.api.dto.KafkaServerConfig; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Implementation of a Kafka Producer. |
| */ |
| @Component |
| @Service |
| public class PublishManager implements KafkaPublisherService, KafkaPublisherAdminService { |
| private KafkaProducer<String, byte[]> kafkaProducer = null; |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| @Activate |
| protected void activate() { |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| stop(); |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void start(KafkaServerConfig config) { |
| |
| if (kafkaProducer != null) { |
| log.info("Producer has already started"); |
| return; |
| } |
| |
| String bootstrapServer = |
| new StringBuilder().append(config.getIpAddress()).append(":") |
| .append(config.getPort()).toString(); |
| |
| // Set Server Properties |
| Properties prop = new Properties(); |
| prop.put("bootstrap.servers", bootstrapServer); |
| prop.put("retries", config.getNumOfRetries()); |
| prop.put("max.in.flight.requests.per.connection", |
| config.getMaxInFlightRequestsPerConnection()); |
| prop.put("request.required.acks", config.getAcksRequired()); |
| prop.put("key.serializer", config.getKeySerializer()); |
| prop.put("value.serializer", config.getValueSerializer()); |
| |
| kafkaProducer = new KafkaProducer<>(prop); |
| log.info("Kafka Producer has started."); |
| } |
| |
| @Override |
| public void stop() { |
| if (kafkaProducer != null) { |
| kafkaProducer.close(); |
| kafkaProducer = null; |
| } |
| |
| log.info("Kafka Producer has Stopped"); |
| } |
| |
| @Override |
| public void restart(KafkaServerConfig config) { |
| stop(); |
| start(config); |
| } |
| |
| @Override |
| public Future<RecordMetadata> send(ProducerRecord<String, byte[]> record) { |
| return kafkaProducer.send(record); |
| } |
| } |