82 lines
4.9 KiB
JavaScript
82 lines
4.9 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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const plugins = require("./smartstream.plugins");
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/**
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* class Smartstream handles
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*/
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class Smartstream {
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/**
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* constructor
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*/
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constructor(streamArrayArg) {
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this.streamArray = [];
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this.customEventObjectArray = [];
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this.streamStartedDeferred = plugins.q.defer();
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this.streamArray = streamArrayArg;
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}
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/**
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* make something with the stream itself
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*/
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streamStarted() {
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return this.streamStartedDeferred.promise;
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}
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/**
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* attach listener to custom event
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*/
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onCustomEvent(eventNameArg, eventFunctionArg) {
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this.customEventObjectArray.push({
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eventName: eventNameArg,
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eventFunction: eventFunctionArg
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});
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}
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/**
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* run the stream
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* @returns Promise
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*/
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run() {
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let done = plugins.q.defer();
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// clone Array
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let streamExecutionArray = [];
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for (let streamItem of this.streamArray) {
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streamExecutionArray.push(streamItem);
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}
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// combine the stream
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let finalStream = null;
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let firstIteration = true;
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for (let stream of streamExecutionArray) {
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if (firstIteration === true) {
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finalStream = stream;
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}
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stream.on('error', (err) => {
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done.reject(err);
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});
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for (let customEventObject of this.customEventObjectArray) {
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stream.on(customEventObject.eventName, customEventObject.eventFunction);
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}
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if (!firstIteration) {
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finalStream = finalStream.pipe(stream);
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}
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firstIteration = false;
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}
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this.streamStartedDeferred.resolve();
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finalStream.on('end', function () {
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done.resolve();
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});
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finalStream.on('close', function () {
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done.resolve();
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});
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finalStream.on('finish', function () {
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done.resolve();
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});
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return done.promise;
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}
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}
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exports.Smartstream = Smartstream;
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exports.cleanPipe = () => {
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return plugins.through2.obj((file, enc, cb) => {
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cb();
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}, (cb) => {
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cb();
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});
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};
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