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# frozen_string_literal: true
module Gitlab
module Graphql
module QueryAnalyzers
class LoggerAnalyzer
COMPLEXITY_ANALYZER = GraphQL::Analysis::QueryComplexity.new { |query, complexity_value| complexity_value }
DEPTH_ANALYZER = GraphQL::Analysis::QueryDepth.new { |query, depth_value| depth_value }
def analyze?(query)
Feature.enabled?(:graphql_logging, default_enabled: true)
end
def initial_value(query)
variables = process_variables(query.provided_variables)
default_initial_values(query).merge({
query_string: query.query_string,
variables: variables
})
rescue => e
Gitlab::Sentry.track_exception(e)
default_initial_values(query)
end
def call(memo, visit_type, irep_node)
memo
end
def final_value(memo)
return if memo.nil?
analyzers = [COMPLEXITY_ANALYZER, DEPTH_ANALYZER]
complexity, depth = GraphQL::Analysis.analyze_query(memo[:query], analyzers)
memo[:depth] = depth
memo[:complexity] = complexity
memo[:duration] = duration(memo[:time_started]).round(1)
GraphqlLogger.info(memo.except!(:time_started, :query))
rescue => e
Gitlab::Sentry.track_exception(e)
end
private
def process_variables(variables)
if variables.respond_to?(:to_s)
variables.to_s
else
variables
end
end
def duration(time_started)
nanoseconds = Gitlab::Metrics::System.monotonic_time - time_started
nanoseconds * 1000000
end
def default_initial_values(query)
{
time_started: Gitlab::Metrics::System.monotonic_time,
query_string: nil,
query: query,
variables: nil,
duration: nil
}
end
end
end
end
end
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