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Diffstat (limited to 'kafkaClient/src/main/java/org/onap/dmaap/kafka/OnapKafkaProducer.java')
| -rw-r--r-- | kafkaClient/src/main/java/org/onap/dmaap/kafka/OnapKafkaProducer.java | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/kafkaClient/src/main/java/org/onap/dmaap/kafka/OnapKafkaProducer.java b/kafkaClient/src/main/java/org/onap/dmaap/kafka/OnapKafkaProducer.java new file mode 100644 index 0000000..1129e14 --- /dev/null +++ b/kafkaClient/src/main/java/org/onap/dmaap/kafka/OnapKafkaProducer.java @@ -0,0 +1,84 @@ +/*- + * ============LICENSE_START======================================================= + * dmaap-kafka-client + * ================================================================================ + * Copyright (C) 2023 Nordix Foundation. 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.dmaap.kafka; + +import java.util.List; +import java.util.Properties; +import java.util.UUID; +import java.util.concurrent.ExecutionException; +import org.apache.kafka.clients.CommonClientConfigs; +import org.apache.kafka.clients.producer.KafkaProducer; +import org.apache.kafka.clients.producer.ProducerConfig; +import org.apache.kafka.clients.producer.ProducerRecord; +import org.apache.kafka.clients.producer.RecordMetadata; +import org.apache.kafka.common.KafkaException; +import org.apache.kafka.common.config.SaslConfigs; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * Utility class that provides a KafkaProducer to communicate with a kafka cluster + */ +public class OnapKafkaProducer { + + private final Logger log = LoggerFactory.getLogger(OnapKafkaProducer.class); + private final KafkaProducer<String, String> producer; + private final List<String> producerTopics; + + /** + * + * @param configuration The config provided to the client + */ + public OnapKafkaProducer(IKafkaConfig configuration) { + producerTopics = configuration.getProducerTopics(); + log.debug("Instantiating kafka producer for topics {}", producerTopics); + Properties props = new Properties(); + + props.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, "org.apache.kafka.common.serialization.StringSerializer"); + props.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, "org.apache.kafka.common.serialization.StringSerializer"); + props.put(ProducerConfig.CLIENT_ID_CONFIG, configuration.getConsumerID() + "-producer-" + UUID.randomUUID()); + props.put(CommonClientConfigs.SECURITY_PROTOCOL_CONFIG, configuration.getKafkaSecurityProtocolConfig()); + props.put(CommonClientConfigs.BOOTSTRAP_SERVERS_CONFIG, configuration.getKafkaBootstrapServers()); + props.put(SaslConfigs.SASL_JAAS_CONFIG, configuration.getKafkaSaslJaasConfig()); + props.put(SaslConfigs.SASL_MECHANISM, configuration.getKafkaSaslMechanism()); + props.put(ProducerConfig.MAX_BLOCK_MS_CONFIG, 10000); + producer = new KafkaProducer<>(props); + } + + /** + * + * @param topicName The name of the topic to publish the data to + * @param value The value of the data + * @return The RecordMetedata of the request + */ + public RecordMetadata sendDataSynch(String topicName, String value) { + RecordMetadata data = null; + try { + data = producer.send(new ProducerRecord<>(topicName, value)).get(); + log.debug("Data sent to topic {} at partition no {} and offset {}", topicName, data.partition(), data.offset()); + } catch (KafkaException | ExecutionException | InterruptedException e) { + log.error("Failed the send data: exc {}", e.getMessage()); + } finally { + producer.flush(); + } + return data; + } +}
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