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Added functionality to allow user to add a message to a topic partiti…
…on manually (#703)
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,17 @@ | ||
| package kafdrop.model; | ||
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| import lombok.Data; | ||
| import lombok.RequiredArgsConstructor; | ||
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| @Data | ||
| @RequiredArgsConstructor | ||
| public final class CreateMessageVO { | ||
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| private int topicPartition; | ||
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| private String key; | ||
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| private String value; | ||
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| private String topic; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| package kafdrop.service; | ||
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| import java.util.Properties; | ||
| import java.util.concurrent.Future; | ||
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| import jakarta.annotation.PostConstruct; | ||
| 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.serialization.ByteArraySerializer; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
| import org.springframework.stereotype.Service; | ||
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| import kafdrop.config.KafkaConfiguration; | ||
| import kafdrop.model.CreateMessageVO; | ||
| import kafdrop.util.Serializers; | ||
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| @Service | ||
| public final class KafkaHighLevelProducer { | ||
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| private static final Logger LOG = LoggerFactory.getLogger(KafkaHighLevelProducer.class); | ||
| private final KafkaConfiguration kafkaConfiguration; | ||
| private KafkaProducer<byte[], byte[]> kafkaProducer; | ||
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| public KafkaHighLevelProducer(KafkaConfiguration kafkaConfiguration) { | ||
| this.kafkaConfiguration = kafkaConfiguration; | ||
| } | ||
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| @PostConstruct | ||
| private void initializeClient() { | ||
| if (kafkaProducer == null) { | ||
| final var properties = new Properties(); | ||
| properties.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, ByteArraySerializer.class); | ||
| properties.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, ByteArraySerializer.class); | ||
| properties.put(ProducerConfig.ACKS_CONFIG, "all"); | ||
| properties.put(ProducerConfig.RETRIES_CONFIG, 0); | ||
| properties.put(ProducerConfig.LINGER_MS_CONFIG, 1); | ||
| properties.put(ProducerConfig.CLIENT_ID_CONFIG, "kafdrop-producer"); | ||
| kafkaConfiguration.applyCommon(properties); | ||
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| kafkaProducer = new KafkaProducer<>(properties); | ||
| } | ||
| } | ||
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| public RecordMetadata publishMessage(CreateMessageVO message, Serializers serializers) { | ||
| initializeClient(); | ||
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| final ProducerRecord<byte[], byte[]> record = new ProducerRecord<byte[], byte[]>(message.getTopic(), | ||
| message.getTopicPartition(), serializers.getKeySerializer().serializeMessage(message.getKey()), | ||
| serializers.getValueSerializer().serializeMessage(message.getValue())); | ||
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| Future<RecordMetadata> result = kafkaProducer.send(record); | ||
| try { | ||
| RecordMetadata recordMetadata = result.get(); | ||
| LOG.info("Record published successfully [{}]", recordMetadata); | ||
| return recordMetadata; | ||
| } catch (Exception e) { | ||
| LOG.error("Failed to publish message", e); | ||
| throw new KafkaProducerException(e); | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| package kafdrop.service; | ||
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| import org.springframework.http.HttpStatus; | ||
| import org.springframework.web.bind.annotation.ResponseStatus; | ||
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| @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR) | ||
| public class KafkaProducerException extends RuntimeException { | ||
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| public KafkaProducerException(Throwable exception) { | ||
| super(exception); | ||
| } | ||
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| public KafkaProducerException(String message) { | ||
| super(message); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| package kafdrop.util; | ||
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| import java.util.HashMap; | ||
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| import io.confluent.kafka.serializers.AbstractKafkaAvroSerDeConfig; | ||
| import io.confluent.kafka.serializers.KafkaAvroSerializer; | ||
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| public class AvroMessageSerializer implements MessageSerializer { | ||
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| private final String topicName; | ||
| private final KafkaAvroSerializer serializer; | ||
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| public AvroMessageSerializer(String topicName, String schemaRegistryUrl, String schemaRegistryAuth) { | ||
| this.topicName = topicName; | ||
| this.serializer = getSerializer(schemaRegistryUrl, schemaRegistryAuth); | ||
| } | ||
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| @Override | ||
| public byte[] serializeMessage(String value) { | ||
| final var bytes = value.getBytes(); | ||
| return serializer.serialize(topicName, bytes); | ||
| } | ||
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| private KafkaAvroSerializer getSerializer(String schemaRegistryUrl, String schemaRegistryAuth) { | ||
| final var config = new HashMap<String, Object>(); | ||
| config.put(AbstractKafkaAvroSerDeConfig.SCHEMA_REGISTRY_URL_CONFIG, schemaRegistryUrl); | ||
| if (schemaRegistryAuth != null) { | ||
| config.put(AbstractKafkaAvroSerDeConfig.BASIC_AUTH_CREDENTIALS_SOURCE, "USER_INFO"); | ||
| config.put(AbstractKafkaAvroSerDeConfig.USER_INFO_CONFIG, schemaRegistryAuth); | ||
| } | ||
| final var kafkaAvroSerializer = new KafkaAvroSerializer(); | ||
| kafkaAvroSerializer.configure(config, false); | ||
| return kafkaAvroSerializer; | ||
| } | ||
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| } |
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