@dugongjs/kafkajs/adapters/outbound/message-broker/message-producer-kafkajs.js

import { Partitioners } from "kafkajs";
import { MessageChannelParticipantKafkaJS } from "../../common/message-broker/message-channel-participator-kafkajs.js";
export class MessageProducerKafkaJS extends MessageChannelParticipantKafkaJS {
    constructor(kafka, producerConfig) {
        super();
        this.kafka = kafka;
        this.producerConfig = producerConfig;
        this.isConnected = false;
        this.producer = this.kafka.producer({
            createPartitioner: Partitioners.DefaultPartitioner,
            ...this.producerConfig
        });
    }
    async publishMessage(_, messageChannelId, message) {
        this.ensureConnected();
        await this.producer.send({
            topic: messageChannelId,
            messages: [message]
        });
    }
    async publishMessages(_, messageChannelId, messages) {
        this.ensureConnected();
        await this.producer.send({
            topic: messageChannelId,
            messages
        });
    }
    async connect() {
        await this.producer.connect();
        this.isConnected = true;
    }
    async disconnect() {
        await this.producer.disconnect();
        this.isConnected = false;
    }
    ensureConnected() {
        if (!this.producer) {
            throw new Error("Producer is not created. Call create() method before publishing messages.");
        }
        if (!this.isConnected) {
            throw new Error("Producer is not connected. Call connect() method before publishing messages.");
        }
    }
}