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# frozen_string_literal: true
module Gitlab
module Metrics
module Dashboard
module Transformers
module Yml
module V1
# Takes a JSON schema validated dashboard hash and
# maps it to PrometheusMetric model attributes
class PrometheusMetrics
def initialize(dashboard_hash, project: nil, dashboard_path: nil)
@dashboard_hash = dashboard_hash.with_indifferent_access
@project = project
@dashboard_path = dashboard_path
@dashboard_hash.default_proc = -> (h, k) { raise Transformers::Errors::MissingAttribute, k.to_s }
end
def execute
prometheus_metrics = []
dashboard_hash[:panel_groups].each do |panel_group|
panel_group[:panels].each do |panel|
panel[:metrics].each do |metric|
prometheus_metrics << {
project: project,
title: panel[:title],
y_label: panel[:y_label],
query: metric[:query_range] || metric[:query],
unit: metric[:unit],
legend: metric[:label],
identifier: metric[:id],
group: Enums::PrometheusMetric.groups[:custom],
common: false,
dashboard_path: dashboard_path
}.compact
end
end
end
prometheus_metrics
end
private
attr_reader :dashboard_hash, :project, :dashboard_path
end
end
end
end
end
end
end
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