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Message dispatcher
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| class YourSubscriber | |
| subscribe(:queue, :or, :something) do |message| | |
| Dispatcher::Base.dispatch_message(message) | |
| end | |
| end | |
| class Dispatcher::Base | |
| def can_process_message? | |
| raise NotImplmenttedError | |
| end | |
| def process_message | |
| raise NotImplmentedError | |
| end | |
| class << self | |
| def dispatch_message(message) | |
| valid_dispatchers.each{|d| d.process_message} | |
| end | |
| private | |
| def valid_dispatchers | |
| possible_dispatchers.select{|d| d.can_process_message? } | |
| end | |
| def possible_dispatchers | |
| descendants.map{|klass| klass.new(message) } | |
| end | |
| end | |
| end | |
| class ShipmentEmailDispatcher < Dispatcher::Base | |
| def can_process_message? | |
| message[:routing_key] == "bulk.shipment.shipped" | |
| end | |
| def process_message | |
| Delayed::Job.new(whatever: :idk) | |
| end | |
| end |
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