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