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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)
{
time_started: Gitlab::Metrics::System.monotonic_time,
query: query
}
end
def call(memo, *)
memo
end
def final_value(memo)
return if memo.nil?
query = memo[:query]
complexity, depth, field_usages = GraphQL::Analysis.analyze_query(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])
memo[:used_fields] = field_usages.first
memo[:used_deprecated_fields] = field_usages.second
push_to_request_store(memo)
# This gl_analysis is included in the tracer log
query.context[:gl_analysis] = memo.except!(:time_started, :query)
rescue StandardError => e
Gitlab::ErrorTracking.track_and_raise_for_dev_exception(e)
end
private
def push_to_request_store(memo)
query = memo[:query]
# TODO: This RequestStore management is used to handle setting request wide metadata
# to improve preexisting logging. We should handle this either with ApplicationContext
# or in a separate tracer.
# https://gitlab.com/gitlab-org/gitlab/-/issues/343802
RequestStore.store[:graphql_logs] ||= []
RequestStore.store[:graphql_logs] << memo.except(:time_started, :duration_s, :query).merge({
variables: process_variables(query.provided_variables),
operation_name: query.operation_name
})
end
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
end
end
end
end
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