jobq

<!doctype html> <html lang="en"> <head> <title>Code coverage report for lib/index.js</title> <meta charset="utf-8" /> <link rel="stylesheet" href="../prettify.css" /> <link rel="stylesheet" href="../base.css" /> <meta name="viewport" content="width=device-width, initial-scale=1"> <style type='text/css'> .coverage-summary .sorter { background-image: url(../sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1> <a href="../index.html">all files</a> / <a href="index.html">lib/</a> index.js </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 97.29% Statements 215/221 </div> <div class='fl pad1y space-right2'> 87.5% Branches 126/144 </div> <div class='fl pad1y space-right2'> 97.78% Functions 44/45 </div> <div class='fl pad1y space-right2'> 99.47% Lines 188/189 </div> </div> </div> <div class='status-line high'></div> <pre><table class="coverage"> <tr><td class="line-count quiet">1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367</td><td class="line-coverage quiet">    33×   20×   78×     1× 1× 1× 1× 1× 1×   1× 1× 39×   39× 38× 37× 36× 35× 35× 35× 35× 35× 35× 35× 13×   22×   35× 35× 35× 35× 35× 35× 35× 35× 35×     1×     74×                 74× 30× 30×     74×         32× 32× 32× 32×         8× 5× 5× 5×           6× 3× 3× 3× 3×           76×         37×   37× 6× 6× 5× 5×   5× 3× 3×   2×   5×   1×   31× 2× 2×   29× 29×           34×   34× 1× 1×   33×   34× 30×   4× 4× 4× 4× 4× 4×             49× 49×         950× 950× 950×         989×         10×         307×   307× 307× 307× 307× 307× 307× 33× 33×   274×     307× 307× 307× 8× 8× 299× 253× 253×             253×   307×           312×   312× 264×   264× 296× 296× 296× 259× 86×   256× 173× 173× 80× 80×     93×     37× 37×     3×       264× 307×     307× 307× 307× 307× 119× 119× 188× 46×   46×     142× 49× 48× 46×       307× 213× 75× 75×     138× 129× 129×   9× 9× 9×         307×   264×         2×   2× 2× 2× 2×   2× 2×                 51×   51× 45× 45× 45× 40×   5×       6×         1×     1× 1× 39×   39×     1×     49× 49×         32× 32×         8× 8×         6× 6×         10×       1×     1×</td><td class="text"><pre class="prettyprint lang-js">'use strict';   var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };   var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; Eif ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { Eif (protoProps) defineProperties(Constructor.prototype, protoProps); Iif (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();   function _classCallCheck(instance, Constructor) { Iif (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }   // Error constants var CONFIG_REQUIRED = 'Configuration Object Required'; var PROCESS_REQUIRED = 'required paramenter [process] must be a function'; var SOURCE_REQUIRED = 'Source is required to be an array, function, promise or stream'; var TYPE_PROCEED_ON_ERROR = 'parameter stopOnError must be a boolean'; var TYPE_EVENT_HANDLER = 'Event handlers must be functions'; var POOLING_REQUIRES_FUNCTION_SOURCE = 'Only Function source can be used with pooling';   var JobQueuer = function () { function JobQueuer(config) { _classCallCheck(this, JobQueuer);   if (!config) throw new Error(CONFIG_REQUIRED); if (!config.process || typeof config.process !== 'function') throw new Error(PROCESS_REQUIRED); if (!config.source || this.getType(config.source) === 'invalid') throw new Error(SOURCE_REQUIRED); if (config.stopOnError && typeof config.stopOnError !== 'boolean') throw new Error(TYPE_PROCEED_ON_ERROR); this.events = {}; this.debug = config.debug; this.maxProceses = config.maxProceses >= 0 ? config.maxProceses : 1; this.process = config.process; this.stopOnError = config.stopOnError || false; this.sourceType = this.getType(config.source); if (this.sourceType === 'array') { this.source = config.source.slice(0); } else { this.source = config.source; } this.running = 0; this.jobsFinished = 0; this.jobErrors = 0; this.fillingJobs = false; this.autoincrementId = 0; this.status = 'stoped'; this.paused = false; this.poolingInterval = config.pooling >= 0 ? config.pooling : false; if (this.sourceType !== 'function' && this.sourceType !== 'promise' && this.poolingInterval !== false) throw new Error(POOLING_REQUIRES_FUNCTION_SOURCE); }   _createClass(JobQueuer, [{ key: 'data', value: function data(_data) { var obj = { startTime: this.startTime, processed: this.jobsFinished, errors: this.jobErrors, maxProceses: this.maxProceses, stopOnError: this.stopOnError, sourceType: this.sourceType, status: this.status }; if (_data) { for (var key in _data) { Eif (_data.hasOwnProperty(key)) obj[key] = _data[key]; } } return obj; } }, { key: 'start', value: function start() { this.status = 'running'; this.startTime = new Date(); this.emit('start', this.data()); this.init(); } }, { key: 'pause', value: function pause() { if (this.status === 'running' || this.status === 'pooling') { this.paused = true; this.status = 'paused'; this.emit('pause', this.data()); } } }, { key: 'resume', value: function resume() { if (this.status !== 'running') { this.paused = false; this.status = 'running'; this.emit('resume', this.data()); this.fillJobs(); } } }, { key: 'getType', value: function getType(source) { return source ? Array.isArray(source) ? 'array' : source.then ? 'promise' : _typeof(source._readableState) === 'object' && typeof source.on === 'function' ? 'stream' : typeof source === 'function' ? 'function' : 'invalid' : 'invalid'; } }, { key: 'init', value: function init() { var _this = this;   if (this.sourceType === 'promise') { this.log("Got promise source. Resolving"); this.source.then(function (data) { _this.sourceType = _this.getType(data); Iif (_this.sourceType === 'invalid') { throw new Error(SOURCE_REQUIRED); } else if (_this.sourceType !== 'function' && _this.sourceType !== 'promise') { Iif (_this.poolingInterval !== false) throw new Error(POOLING_REQUIRES_FUNCTION_SOURCE); _this.source = data.slice(0); } else { _this.source = data; } _this.init(); }).catch(function (err) { _this.processFinish(err); }); } else if (this.sourceType === 'stream') { this.log("Got stream source. Initializing"); this.initializeStream(); } else { this.log('Got ' + this.sourceType + ' source. Starting'); this.fillJobs(); } } }, { key: 'processFinish', value: function processFinish(err) { var _this2 = this;   if (err) { this.emit('error', err); this.status = 'error'; } else { this.status = 'finished'; } if (this.poolingInterval === false) { this.emit('processFinish', this.data({ endTime: new Date() })); } else { this.status = 'pooling'; this.empty = false; this.emit('pooling', this.data()); setTimeout(function () { _this2.status = 'running'; _this2.fillJobs(); }, this.poolingInterval); } } }, { key: 'on', value: function on(event, handler) { this.events[event] = handler; return this; } }, { key: 'emit', value: function emit(event, payload) { if (event === 'error' && this.stopOnError) this.status = 'error'; this.log(event, payload); if (this.events[event]) this.events[event](payload); } }, { key: 'log', value: function log(type, data) { Iif (this.debug && console) console.log('[' + new Date() + '][' + type + ']', data); } }, { key: 'runningJobsCount', value: function runningJobsCount() { return this.running; } }, { key: 'runJob', value: function runJob(jobPromise) { var _this3 = this;   this.running++; var jobId = ++this.autoincrementId; this.emit('jobRun', jobId); var next = function next() { var runningCount = --_this3.running; if (!runningCount && _this3.status === 'empty' || _this3.status === 'error') { _this3.status = 'finished'; return _this3.processFinish(); } _this3.fillJobs(); };   var jobStartTime = new Date(); jobPromise(function (err, result) { if (err) { _this3.emit('error', err); _this3.jobErrors++; } else if (result) { var jobEndTime = new Date(); _this3.emit('jobFinish', { jobId: jobId, jobStartTime: jobStartTime, jobEndTime: jobEndTime, result: result, jobsRunning: _this3.running }); _this3.jobsFinished++; } next(); }); } }, { key: 'fillJobs', value: function fillJobs() { var _this4 = this;   if (this.fillingJobs) return; this.fillingJobs = true;   var resolveJobValue = function resolveJobValue(jobValue, done) { try { var resolved = false; if (jobValue !== null) { var jobPromise = _this4.process(jobValue, function (err, value) { if (!resolved) done(err, value); }); if (jobPromise) { resolved = true; if (typeof jobPromise.then === 'function') { return jobPromise.then(function (data) { done(null, data); }).catch(done); } done(null, jobPromise); } } else { _this4.status = 'empty'; done(); } } catch (e) { done(e); } };   while (!this.paused && (this.maxProceses === 0 || this.running < this.maxProceses) && this.status === 'running' && (this.sourceType === 'array' && this.source.length || this.sourceType !== 'array')) { this.emit('jobFetch', { jobsRunning: this.running }); var job = function job(done) { var item = void 0; var resolved = false; if (_this4.sourceType === 'array') { item = _this4.source.splice(0, 1)[0]; if (!_this4.source.length) _this4.status = 'empty'; } else if (_this4.sourceType === 'stream') { _this4.waitForStreamData(function (err, jobValue) { // TODO: Error resolveJobValue(jobValue, done); }); } else { item = _this4.source(function (err, jobValue) { if (!resolved) { if (err) return done(err); resolveJobValue(jobValue, done); } }); } if (undefined !== item) { if (item && item.then && typeof item.then === 'function') { item.then(function (jobValue) { resolveJobValue(jobValue, done); }).catch(done); } else { if (item !== null) { resolved = true; resolveJobValue(item, done); } else { _this4.status = 'empty'; resolved = true; done(); } } } }; this.runJob(job); } this.fillingJobs = false; } }, { key: 'initializeStream', value: function initializeStream() { var _this5 = this;   this.source.on('readable', function () { _this5.log('Stream ready. Starting'); _this5.streamEnded = false; _this5.fillJobs(); }); this.source.on('end', function () { _this5.streamEnded = true; }); // this.source.on('error', (err) => { // // TODO: Error handling // }) } }, { key: 'waitForStreamData', value: function waitForStreamData(done) { var _this6 = this;   if (!this.streamEnded) { setTimeout(function () { var item = _this6.source.read(); if (item) { done(null, item); } else { _this6.waitForStreamData(done); } }, 0); } else { done(null, null); } } }]);   return JobQueuer; }();   var JobQ = function () { function JobQ(options) { _classCallCheck(this, JobQ);   this.instance = new JobQueuer(options); }   _createClass(JobQ, [{ key: 'on', value: function on(event, handler) { this.instance.on(event, handler); return this; } }, { key: 'start', value: function start() { this.instance.start(); return this; } }, { key: 'pause', value: function pause() { this.instance.pause(); return this; } }, { key: 'resume', value: function resume() { this.instance.resume(); return this; } }, { key: 'runningJobsCount', value: function runningJobsCount() { return this.instance.runningJobsCount(); } }]);   return JobQ; }();   module.exports = JobQ;</pre></td></tr> </table></pre> <div class='push'></div> </div> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Wed Apr 26 2017 17:07:25 GMT-0300 (CLST) </div> </div> <script src="../prettify.js"></script> <script> window.onload = function () { if (typeof prettyPrint === 'function') { prettyPrint(); } }; </script> <script src="../sorter.js"></script> </body> </html>