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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 }
FIELD_USAGE_ANALYZER = GraphQL::Analysis::FieldUsage.new { |query, used_fields, used_deprecated_fields| [used_fields, used_deprecated_fields] }
ALL_ANALYZERS = [COMPLEXITY_ANALYZER, DEPTH_ANALYZER, FIELD_USAGE_ANALYZER].freeze
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::ErrorTracking.track_and_raise_for_dev_exception(e)
default_initial_values(query)
end
def call(memo, visit_type, irep_node)
RequestStore.store[:graphql_logs] = memo
end
def final_value(memo)
return if memo.nil?
complexity, depth, field_usages = GraphQL::Analysis.analyze_query(memo[:query], ALL_ANALYZERS)
memo[:depth] = depth
memo[:complexity] = complexity
# This duration is not the execution time of the
# query but the execution time of the analyzer.
memo[:duration_s] = duration(memo[:time_started]).round(1)
memo[:used_fields] = field_usages.first
memo[:used_deprecated_fields] = field_usages.second
GraphqlLogger.info(memo.except!(:time_started, :query))
rescue => e
Gitlab::ErrorTracking.track_and_raise_for_dev_exception(e)
end
private
def process_variables(variables)
filtered_variables = filter_sensitive_variables(variables)
if filtered_variables.respond_to?(:to_s)
filtered_variables.to_s
else
filtered_variables
end
end
def filter_sensitive_variables(variables)
ActiveSupport::ParameterFilter
.new(::Rails.application.config.filter_parameters)
.filter(variables)
end
def duration(time_started)
Gitlab::Metrics::System.monotonic_time - time_started
end
def default_initial_values(query)
{
time_started: Gitlab::Metrics::System.monotonic_time,
query_string: nil,
query: query,
variables: nil,
duration_s: nil
}
end
end
end
end
end
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