56 lines
1.4 KiB
JavaScript
56 lines
1.4 KiB
JavaScript
'use strict';
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var events = require('events');
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var util = require('util');
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function Bus(params) {
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events.EventEmitter.call(this);
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this.db = params.db;
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}
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util.inherits(Bus, events.EventEmitter);
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Bus.prototype.subscribe = function(name) {
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for (var i = 0; i < this.db.modules.length; i++) {
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var mod = this.db.modules[i];
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var events = mod.getPublishEvents();
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for (var j = 0; j < events.length; j++) {
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var event = events[j];
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var params = Array.prototype.slice.call(arguments).slice(1);
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params.unshift(this);
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if (name === event.name) {
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event.subscribe.apply(event.scope, params);
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}
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}
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}
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};
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Bus.prototype.unsubscribe = function(name) {
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for (var i = 0; i < this.db.modules.length; i++) {
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var mod = this.db.modules[i];
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var events = mod.getPublishEvents();
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for (var j = 0; j < events.length; j++) {
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var event = events[j];
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var params = Array.prototype.slice.call(arguments).slice(1);
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params.unshift(this);
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if (name === event.name) {
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event.unsubscribe.apply(event.scope, params);
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}
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}
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}
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};
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Bus.prototype.close = function() {
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// Unsubscribe from all events
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for (var i = 0; i < this.db.modules.length; i++) {
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var mod = this.db.modules[i];
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var events = mod.getPublishEvents();
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for (var j = 0; j < events.length; j++) {
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var event = events[j];
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event.unsubscribe.call(event.scope, this);
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}
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}
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};
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module.exports = Bus;
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