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eventric

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Build JavaScript applications with Behaviour-driven Domain Design. Based on DDD, BDD, CQRS and EventSourcing.

github.com/efacilitation/eventric

efacilitation/eventric

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class PubSub constructor: -> @_subscribers = [] @_subscriberId = 0 @_nextTick = (args...) -> setTimeout args... subscribe: (eventName, subscriberFn) -> subscriber = eventName: eventName subscriberFn: subscriberFn subscriberId: @_getNextSubscriberId() @_subscribers.push subscriber subscriber.subscriberId subscribeAsync: (eventName, subscriberFn) -> subscriber = eventName: eventName subscriberFn: subscriberFn subscriberId: @_getNextSubscriberId() isAsync: true @_subscribers.push subscriber subscriber.subscriberId publish: (eventName, payload, callback = ->) -> subscribers = @_getRelevantSubscribers eventName executeNextHandler = => if subscribers.length is 0 callback() else subscribers.shift().subscriberFn payload, -> @_nextTick executeNextHandler, 0 @_nextTick executeNextHandler, 0 publishAsync: (eventName, payload, callback = ->) -> subscribers = @_getRelevantSubscribers eventName executeNextHandler = => if subscribers.length is 0 callback() else subscriber = subscribers.shift() if subscriber.isAsync subscriber.subscriberFn payload, -> setTimeout executeNextHandler, 0 else subscriber.subscriberFn payload @_nextTick executeNextHandler, 0 @_nextTick executeNextHandler, 0 _getRelevantSubscribers: (eventName) -> if eventName @_subscribers.filter (x) -> x.eventName is eventName else @_subscribers unsubscribe: (subscriberId) -> @_subscribers = @_subscribers.filter (x) -> x.subscriberId isnt subscriberId _getNextSubscriberId: -> @_subscriberId++ module.exports = PubSub