64 lines
1.5 KiB
Ruby
64 lines
1.5 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module Database
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module HealthStatus
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module Signals
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# Base class for a signal
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class Base
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attr_reader :indicator_class, :reason
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def initialize(indicator_class, reason:)
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@indicator_class = indicator_class
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@reason = reason
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end
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def to_s
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"#{short_name} (indicator: #{indicator_class}; reason: #{reason})"
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end
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def log_info?
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false
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end
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def stop?
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false
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end
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def short_name
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self.class.name.demodulize
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end
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end
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# A Signals::Stop is an indication to put a migration on hold or stop it entirely:
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# In general, we want to slow down or pause the migration.
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class Stop < Base
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def log_info?
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true
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end
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def stop?
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true
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end
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end
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# A Signals::Normal indicates normal system state: We carry on with the migration
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# and may even attempt to optimize its throughput etc.
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class Normal < Base; end
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# When given an Signals::Unknown, something unexpected happened while
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# we evaluated system indicators.
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class Unknown < Base
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def log_info?
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true
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end
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end
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# No signal could be determined, e.g. because the indicator
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# was disabled.
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class NotAvailable < Base; end
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end
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end
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end
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end
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