com.networknt.kafka.producer.LightProducer Maven / Gradle / Ivy

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A module to push events to a Kafka topic.

There is a newer version: 2.1.37

package com.networknt.kafka.producer;

import com.networknt.config.Config;
import com.networknt.kafka.common.KafkaProducerConfig;
import com.networknt.kafka.common.TransactionalKafkaException;
import com.networknt.utility.ModuleRegistry;
import io.undertow.server.HttpServerExchange;
import org.apache.kafka.clients.producer.Producer;
import org.apache.kafka.clients.producer.ProducerRecord;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.BlockingQueue;

/**
 * A generic Kafka producer that can handle the header propagation with open and close methods to be
 * called from the startup and shutdown hooks.
 *
 * @author Steve Hu
 */
public interface LightProducer {
    /**
     * This method is used to create an instance of producer in a startup hook for most of the producers.
     * Queued producer will start a background thread to process the queued message in batch and this
     * method can be used to start the thread in a startup hook.
     *
     */
    void open();

    /**
     * This method is called by a shutdown hook to close the producer if it is not null.
     */
    void close();

    /**
     * Register the module to the Registry so that the config can be shown in the server/info
     *
     */
    default void registerModule() {
        // register the module with the configuration properties.
        List masks = new ArrayList<>();
        masks.add("basic.auth.user.info");
        masks.add("sasl.jaas.config");
        masks.add("schema.registry.ssl.truststore.password");
        ModuleRegistry.registerModule(KafkaProducerConfig.CONFIG_NAME, LightProducer.class.getName(), Config.getNoneDecryptedInstance().getJsonMapConfigNoCache(KafkaProducerConfig.CONFIG_NAME), masks);
    }
}