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# frozen_string_literal: true
# Service Ping payload build using the instrumentation classes
# for given metrics key_paths and output method
module Gitlab
module Usage
module ServicePing
class InstrumentedPayload
attr_reader :metrics_key_paths
attr_reader :output_method
def initialize(metrics_key_paths, output_method)
@metrics_key_paths = metrics_key_paths
@output_method = output_method
end
def build
metrics_key_paths.map do |key_path|
compute_instrumental_value(key_path, output_method)
end.reduce({}, :deep_merge)
end
private
# Not all metrics defintions have instrumentation classes
# The value can be computed only for those that have it
def instrumented_metrics_defintions
Gitlab::Usage::MetricDefinition.with_instrumentation_class
end
def compute_instrumental_value(key_path, output_method)
definition = instrumented_metrics_defintions.find { |df| df.key_path == key_path }
return {} unless definition.present?
Gitlab::Usage::Metric.new(definition).method(output_method).call
end
end
end
end
end
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