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# frozen_string_literal: true
module Gitlab
module Metrics
module Dashboard
module Stages
class BaseStage
include Gitlab::Metrics::Dashboard::Defaults
DashboardProcessingError = Class.new(StandardError)
LayoutError = Class.new(DashboardProcessingError)
attr_reader :project, :environment, :dashboard
def initialize(project, environment, dashboard)
@project = project
@environment = environment
@dashboard = dashboard
end
# Entry-point to the stage
def transform!
raise NotImplementedError
end
protected
def missing_panel_groups!
raise LayoutError.new('Top-level key :panel_groups must be an array')
end
def missing_panels!
raise LayoutError.new('Each "panel_group" must define an array :panels')
end
def missing_metrics!
raise LayoutError.new('Each "panel" must define an array :metrics')
end
def for_metrics
missing_panel_groups! unless dashboard[:panel_groups].is_a?(Array)
dashboard[:panel_groups].each do |panel_group|
missing_panels! unless panel_group[:panels].is_a?(Array)
panel_group[:panels].each do |panel|
missing_metrics! unless panel[:metrics].is_a?(Array)
panel[:metrics].each do |metric|
yield metric
end
end
end
end
end
end
end
end
end
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