43 lines
1.3 KiB
Ruby
43 lines
1.3 KiB
Ruby
# frozen_string_literal: true
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# Gitlab::EventStore is a simple pub-sub mechanism that lets you publish
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# domain events and use Sidekiq workers as event handlers.
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#
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# It can be used to decouple domains from different bounded contexts
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# by publishing domain events and let any interested parties subscribe
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# to them.
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#
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module Gitlab
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module EventStore
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Error = Class.new(StandardError)
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InvalidEvent = Class.new(Error)
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InvalidSubscriber = Class.new(Error)
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def self.publish(event)
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instance.publish(event)
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end
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def self.instance
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@instance ||= Store.new { |store| configure!(store) }
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end
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# Define all event subscriptions using:
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#
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# store.subscribe(DomainA::SomeWorker, to: DomainB::SomeEvent)
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#
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# It is possible to subscribe to a subset of events matching a condition:
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#
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# store.subscribe(DomainA::SomeWorker, to: DomainB::SomeEvent), if: ->(event) { event.data == :some_value }
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#
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def self.configure!(store)
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###
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# Add subscriptions here:
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store.subscribe ::MergeRequests::UpdateHeadPipelineWorker, to: ::Ci::PipelineCreatedEvent
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store.subscribe ::Namespaces::UpdateRootStatisticsWorker, to: ::Projects::ProjectDeletedEvent
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end
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private_class_method :configure!
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end
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end
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Gitlab::EventStore.prepend_mod_with('Gitlab::EventStore')
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