Backup senica-RVO25 on 16.10.2025
This commit is contained in:
Jakub Klena
parent
b2adef622d
commit
cf772fe147
96 changed files with 31029 additions and 0 deletions
477
RVO25/flow_15_1_2025/wsmqttpublish.js
Executable file
477
RVO25/flow_15_1_2025/wsmqttpublish.js
Executable file
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exports.id = 'wsmqttpublish';
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exports.title = 'WS MQTT publish';
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exports.group = 'MQTT';
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exports.color = '#888600';
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exports.version = '1.0.2';
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exports.icon = 'sign-out';
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exports.input = 2;
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exports.output = 3;
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exports.options = { host: 'tb-stage.worksys.io', port: 1883, clientid: "", username: "" };
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exports.html = `<div class="padding">
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<div class="row">
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<div class="col-md-6">
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<div data-jc="textbox" data-jc-path="host" data-jc-config="placeholder:test.mosquitto.org;required:false" class="m">Hostname or IP address (if not empty - setting will override db setting)</div>
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</div>
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<div class="col-md-6">
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<div data-jc="textbox" data-jc-path="port" data-jc-config="placeholder:1883;required:true" class="m">Port</div>
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</div>
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</div>
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<div class="row">
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<div class="col-md-6">
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<div data-jc="textbox" data-jc-path="clientid">@(Client id)</div>
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</div>
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<div class="col-md-6">
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<div data-jc="textbox" data-jc-path="username" class="m">@(Username)</div>
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</div>
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</div>
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</div>`;
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exports.readme = `
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# WS MQTT Publish
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Version 1.0.3.
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Added:
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- database collections,
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- rpc response
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`;
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const { promisifyBuilder } = require('./helper/db_helper');
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const { errLogger, monitor } = require('./helper/logger');
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const fs = require('fs');
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const mqtt = require('mqtt');
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const SEND_TO = {
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debug: 0,
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rpcCall: 1,
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services: 2
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}
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//CONFIG
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let createTelemetryBackup = true;
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let saveTelemetryOnError = true;//backup_on_failure overrides this value
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//------------------------
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let rollers;
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if(createTelemetryBackup) rollers = require('streamroller');
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const noSqlFileSizeLimit = 4194304;//use 5MB - 4194304
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let insertNoSqlCounter = 0;
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let insertBackupNoSqlCounter = 0;
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let processingData = false;
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let backup_on_failure = false;//== saveTelemetryOnError - create backup client send failure
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let restore_from_backup = 0; //how many rows process at once?
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let restore_backup_wait = 0;//wait seconds
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let lastRestoreTime = 0;
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// if there is an error in client connection, flow logs to monitor.txt. Not to log messages every second, we use sendClientError variable
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let sendClientError = true;
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process.on('uncaughtException', function (err) {
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errLogger.error('uncaughtException:', err.message)
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errLogger.error(err.stack);
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//TODO
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//send to service
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//process.exit(1);
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})
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const nosql = NOSQL('tbdata');
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const nosqlBackup = NOSQL('/backup/tbdata');
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exports.install = function(instance) {
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var client;
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var opts;
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var clientReady = false;
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// wsmqtt status for notification purposes on projects.worksys.io database
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let wsmqttName = null;
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let sendWsStatusVar = null;
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let wsmqtt_status = 'disconnected';
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function getWsmqttName(host)
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{
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if(host == "tb-demo.worksys.io" || host == '192.168.252.4') return 'wsmqtt_demo';
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else if(host == "tb-qas01.worksys.io" || host == '192.168.252.5') return 'wsmqtt_qas01';
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else if(host == "tb-prod01.worksys.io" || host == '192.168.252.1') return 'wsmqtt_prod01';
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}
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function sendWsStatus()
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{
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instance.send(SEND_TO.services, {[wsmqttName]: wsmqtt_status});
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}
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function main()
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{
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if(!FLOW.dbLoaded) return;
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loadSettings();
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clearInterval(sendWsStatus);
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sendWsStatusVar = setInterval(sendWsStatus, 180000);
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}
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//set opts according to db settings
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function loadSettings()
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{
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if(instance.options.host !== "")
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{
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//override settings from database
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var o = instance.options;
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opts = {
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host: o.host,
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port: o.port,
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clientId: o.clientid,
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username: o.username,
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rejectUnauthorized: false,
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resubscribe: false
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};
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wsmqttName = getWsmqttName(o.host);
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console.log("wsmqttpublich -> loadSettings from instance.options", instance.options);
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}
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else
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{
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const SETTINGS = FLOW.GLOBALS.settings;
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backup_on_failure = SETTINGS.backup_on_failure;
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saveTelemetryOnError = backup_on_failure;
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restore_from_backup = SETTINGS.restore_from_backup;
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restore_backup_wait = SETTINGS.restore_backup_wait;
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let mqtt_host = SETTINGS.mqtt_host;
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let mqtt_clientid = SETTINGS.mqtt_clientid;
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let mqtt_username = SETTINGS.mqtt_username;
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let mqtt_port = SETTINGS.mqtt_port;
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opts = {
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host: mqtt_host,
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port: mqtt_port,
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keepalive: 10,
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clientId: mqtt_clientid,
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username: mqtt_username,
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rejectUnauthorized: false,
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resubscribe: false
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};
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wsmqttName = getWsmqttName(mqtt_host);
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}
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connectToTbServer();
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}
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function connectToTbServer()
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{
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var url = "mqtt://" + opts.host + ":" + opts.port;
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console.log("MQTT URL: ", url);
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client = mqtt.connect(url, opts);
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client.on('connect', function() {
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instance.status("Connected", "green");
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monitor.info("MQTT client connected");
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sendClientError = true;
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clientReady = true;
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wsmqtt_status = 'connected';
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});
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client.on('reconnect', function() {
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instance.status("Reconnecting", "yellow");
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clientReady = false;
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});
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client.on('message', function(topic, message) {
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// message is type of buffer
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message = message.toString();
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if (message[0] === '{') {
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TRY(function() {
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message = JSON.parse(message);
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if (message.hasOwnProperty("device") && message.hasOwnProperty("data") && message.data.hasOwnProperty("id")) {
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client.publish(topic, `{"device": ${message.device}, "id": ${message.data.id}, "data": {"success": true}}`, {qos:1});
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instance.send(SEND_TO.rpcCall, {"device": message.device, "id": message.data.id, "RPC response": {"success": true}});
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}
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}, () => instance.debug('MQTT: Error parsing data', message));
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}
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instance.send(SEND_TO.rpcCall, {"topic":topic, "content":message });
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});
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client.on('close', function() {
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clientReady = false;
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wsmqtt_status = 'disconnected';
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instance.status("Disconnected", "red");
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instance.send(SEND_TO.debug, {"message":"Client CLOSE signal received !"});
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});
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client.on('error', function(err) {
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instance.status("Err: "+ err.code, "red");
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instance.send(SEND_TO.debug, {"message":"Client ERROR signal received !", "error":err, "opt":opts });
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if(sendClientError) {
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monitor.info('MQTT client error', err);
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sendClientError = false;
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}
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clientReady = false;
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wsmqtt_status = 'disconnected';
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});
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}
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instance.on("0", _ => {
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main();
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})
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instance.on('1', function(data) {
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if(clientReady)
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{
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//do we have some data in backup file? if any, process data from database
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if(saveTelemetryOnError)
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{
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//read telemetry data and send back to server
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if(!processingData) processDataFromDatabase();
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}
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let stringifiedJson = JSON.stringify(data.data);
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client.publish("v1/gateway/telemetry", stringifiedJson, {qos: 1});
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//backup telemetry
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if(createTelemetryBackup)
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{
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data.data.id = UID();
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nosqlBackup.insert(data.data);
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insertBackupNoSqlCounter++;
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if(insertBackupNoSqlCounter > 150)
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{
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let options = {compress: true};
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let path = __dirname + "/../databases/backup/tbdata.nosql";
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var stream = new rollers.RollingFileStream(path, noSqlFileSizeLimit, 150, options);
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stream.write("");
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stream.end();
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insertBackupNoSqlCounter = 0;
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}
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}
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}
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else
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{
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//logger.debug("Client unavailable. Data not sent !", JSON.stringify(data.data));
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instance.send(SEND_TO.debug, {"message":"Client unavailable. Data not sent !", "data": data.data });
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if(saveTelemetryOnError)
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{
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//create new file from tbdata.nosql, if file size exceeds given limit, and clear tbdata.nosql
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makeBackupFromDbFile();
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//write to tb
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data.data.id = UID();
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nosql.insert(data.data);
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}
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}
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});
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instance.close = function(done) {
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if(clientReady){
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client.end();
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clearInterval(sendWsStatusVar);
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}
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};
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function getDbBackupFileCounter(type)
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{
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var files = fs.readdirSync(__dirname + "/../databases");
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let counter = 0;
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for(var i = 0; i < files.length; i++)
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{
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if(files[i] == "tbdata.nosql") continue;
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if(files[i].endsWith(".nosql"))
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{
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let pos = files[i].indexOf(".");
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if(pos > -1)
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{
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let fileCounter = counter;
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let firstDigit = files[i].slice(0, pos);
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fileCounter = parseInt(firstDigit);
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if(isNaN(fileCounter)) fileCounter = 0;
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//console.log("getDbBackupFileCounter digit:", files[i], firstDigit, fileCounter, isNaN(fileCounter), type);
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if(type == "max")
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{
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if(fileCounter > counter)
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{
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counter = fileCounter;
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}
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}
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else if(type == "min")
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{
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if(counter == 0) counter = fileCounter;
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if(fileCounter < counter)
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{
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counter = fileCounter;
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}
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}
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}
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}
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}
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if(type == "max") counter++;
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return counter;
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}
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const makeBackupFromDbFile = async () => {
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if(!saveTelemetryOnError) return;
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//to avoid large file: tbdata.nosql
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//init value is 0!
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if(insertNoSqlCounter > 0)
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{
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--insertNoSqlCounter;
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return;
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}
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insertNoSqlCounter = 100;
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let source = __dirname + "/../databases/tbdata.nosql";
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var stats = fs.statSync(source);
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var fileSizeInBytes = stats.size;
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if(fileSizeInBytes > noSqlFileSizeLimit)
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{
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let counter = 1;
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counter = getDbBackupFileCounter("max");
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let destination = __dirname + "/../databases/" + counter + "." + "tbdata.nosql";
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//make backup file
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fs.copyFileSync(source, destination);
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//fs.renameSync(p, p + "." + counter);
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//clear tbdata.nosql
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fs.writeFileSync(source, "");
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fs.truncateSync(source, 0);
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}
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}
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const processDataFromDatabase = async () => {
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if(restore_from_backup <= 0) return;
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//calculate diff
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const now = new Date();
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let currentTime = now.getTime();
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let diff = currentTime - lastRestoreTime;
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if( (diff / 1000) < restore_backup_wait)
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{
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//console.log("*********restore_backup_wait", diff, restore_backup_wait);
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return;
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}
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processingData = true;
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//get filename to process
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let counter = getDbBackupFileCounter("min");
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//we have some backup files
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let dataBase = 'tbdata';
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var nosql;
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if(counter == 0) dataBase = 'tbdata';
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else dataBase = counter + "." + 'tbdata';
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nosql = NOSQL(dataBase);
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//select all data - use limit restore_from_backup
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let records = await promisifyBuilder(nosql.find().take(restore_from_backup));
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for(let i = 0; i < records.length; i++)
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{
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if(clientReady) {
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let item = records[i];
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let id = item.id;
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if(id !== undefined)
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{
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//console.log("------------processDataFromDatabase - remove", id, dataBase, i);
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try {
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let message = JSON.parse(JSON.stringify(item));
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delete message.id;
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client.publish("v1/gateway/telemetry", JSON.stringify(message), {qos:1});
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//remove from database
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await promisifyBuilder(nosql.remove().where("id", id));
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} catch(error) {
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//process error
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console.log("processDataFromDatabase", error);
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}
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}
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}
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else
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{
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processingData = false;
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return;
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}
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}
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if(records.length > 0)
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{
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//clean backup file
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if(counter > 0) nosql.clean();
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}
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//no data in db, remove
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if(records.length == 0)
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{
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if(counter > 0) nosql.drop();
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}
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const d = new Date();
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lastRestoreTime = d.getTime();
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processingData = false;
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}
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instance.on('options', main);
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//instance.reconfigure();
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};
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