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 | 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× | /*eslint-env node */ 'use strict'; var _ = require('lodash'); var parser = require('cron-parser'); var crypto = require('crypto'); var Job = require('./job'); module.exports = function(Queue) { Queue.prototype.nextRepeatableJob = function( name, data, opts, skipCheckExists ) { var _this = this; var client = this.client; var repeat = opts.repeat; var prevMillis = opts.prevMillis || 0; if (!prevMillis && opts.jobId) { repeat.jobId = opts.jobId; } repeat.count = repeat.count ? repeat.count + 1 : 1; if (!_.isUndefined(repeat.limit) && repeat.count > repeat.limit) { return Promise.resolve(); } var now = Date.now(); now = prevMillis < now ? now : prevMillis; var nextMillis = getNextMillis(now, repeat); if (nextMillis) { var jobId = repeat.jobId ? repeat.jobId + ':' : ':'; var repeatJobKey = getRepeatKey(name, repeat, jobId); if (skipCheckExists) return createNextJob(); // Check that the repeatable job hasn't been removed // TODO: a lua script would be better here return client .zscore(_this.keys.repeat, repeatJobKey) .then(function handleZScore(repeatableExists) { // The job could have been deleted since this check if (repeatableExists) return createNextJob(); return Promise.resolve(); }); function createNextJob() { return client .zadd(_this.keys.repeat, nextMillis, repeatJobKey) .then(function() { // // Generate unique job id for this iteration. // var customId = getRepeatJobId( name, jobId, nextMillis, md5(repeatJobKey) ); now = Date.now(); var delay = nextMillis - now; return Job.create( _this, name, data, _.extend(_.clone(opts), { jobId: customId, delay: delay < 0 ? 0 : delay, timestamp: now, prevMillis: nextMillis }) ); }); } } else { return Promise.resolve(); } }; Queue.prototype.removeRepeatable = function(name, repeat) { var _this = this; if (typeof name !== 'string') { repeat = name; name = Job.DEFAULT_JOB_NAME; } return this.isReady().then(function() { var jobId = repeat.jobId ? repeat.jobId + ':' : ':'; var repeatJobKey = getRepeatKey(name, repeat, jobId); var repeatJobId = getRepeatJobId(name, jobId, '', md5(repeatJobKey)); var queueKey = _this.keys['']; return _this.client.removeRepeatable( _this.keys.repeat, _this.keys.delayed, repeatJobId, repeatJobKey, queueKey ); }); }; Queue.prototype.getRepeatableJobs = function(start, end, asc) { var key = this.keys.repeat; start = start || 0; end = end || -1; return (asc ? this.client.zrange(key, start, end, 'WITHSCORES') : this.client.zrevrange(key, start, end, 'WITHSCORES') ).then(function(result) { var jobs = []; for (var i = 0; i < result.length; i += 2) { var data = result[i].split(':'); jobs.push({ key: result[i], name: data[0], id: data[1] || null, endDate: parseInt(data[2]) || null, tz: data[3] || null, cron: data[4], next: parseInt(result[i + 1]) }); } return jobs; }); }; Queue.prototype.getRepeatableCount = function() { return this.client.zcard(this.toKey('repeat')); }; function getRepeatJobId(name, jobId, nextMillis, namespace) { return 'repeat:' + md5(name + jobId + namespace) + ':' + nextMillis; } function getRepeatKey(name, repeat, jobId) { var endDate = repeat.endDate ? new Date(repeat.endDate).getTime() + ':' : ':'; var tz = repeat.tz ? repeat.tz + ':' : ':'; var suffix = repeat.cron ? tz + repeat.cron : String(repeat.every); return name + ':' + jobId + endDate + suffix; } function getNextMillis(millis, opts) { if (opts.cron && opts.every) { throw new Error( 'Both .cron and .every options are defined for this repeatable job' ); } if (opts.every) { return millis + opts.every; } var currentDate = new Date(millis); var interval = parser.parseExpression( opts.cron, _.defaults( { currentDate: currentDate }, opts ) ); try { return interval.next().getTime(); } catch (e) { // Ignore error } } function md5(str) { return crypto .createHash('md5') .update(str) .digest('hex'); } }; |