66 lines
1.7 KiB
JavaScript
66 lines
1.7 KiB
JavaScript
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const net = require('net');
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const config = require('../../config/default');
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const logger = require('../utils/logger');
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function createHl7TcpConnector() {
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let server;
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let messageHandler = async () => {};
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let errorHandler = (err) => logger.error({ err }, 'hl7 connector error');
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const connections = new Set();
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function handleData(socket, chunk) {
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const payload = chunk.toString('utf8').trim();
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if (!payload) return;
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messageHandler(payload).catch(errorHandler);
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}
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function attach(socket) {
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connections.add(socket);
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socket.on('data', (chunk) => handleData(socket, chunk));
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socket.on('error', (err) => errorHandler(err));
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socket.on('close', () => connections.delete(socket));
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}
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return {
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name: () => 'hl7-tcp',
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type: () => 'hl7-tcp',
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async start() {
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server = net.createServer(attach);
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return new Promise((resolve, reject) => {
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server.listen(config.connectors.hl7TcpPort, () => {
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logger.info({ port: config.connectors.hl7TcpPort }, 'hl7 tcp connector listening');
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resolve();
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});
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server.on('error', (err) => {
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errorHandler(err);
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reject(err);
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});
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});
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},
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async stop() {
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for (const socket of connections) {
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socket.destroy();
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}
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if (!server) return;
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return new Promise((resolve, reject) => {
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server.close((err) => {
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if (err) return reject(err);
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resolve();
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});
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});
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},
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health() {
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return { status: server ? 'up' : 'down', port: config.connectors.hl7TcpPort };
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},
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onMessage(handler) {
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messageHandler = handler;
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},
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onError(handler) {
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errorHandler = handler;
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}
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};
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}
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module.exports = { createHl7TcpConnector };
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