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# frozen_string_literal: true
module Gitlab
module Cache
# Value object for cache metadata
class Metadata
VALID_BACKING_RESOURCES = [:cpu, :database, :gitaly, :memory, :unknown].freeze
# @param cache_identifier [String] defines the location of the cache definition
# Example: "ProtectedBranches::CacheService#fetch"
# @param feature_category [Symbol] name of the feature category (from config/feature_categories.yml)
# @param backing_resource [Symbol] most affected resource by cache generation (full list: VALID_BACKING_RESOURCES)
# @return [Gitlab::Cache::Metadata]
def initialize(
cache_identifier: nil,
feature_category: Client::DEFAULT_FEATURE_CATEGORY,
backing_resource: Client::DEFAULT_BACKING_RESOURCE
)
@cache_identifier = cache_identifier
@feature_category = fetch_feature_category!(feature_category)
@backing_resource = fetch_backing_resource!(backing_resource)
end
attr_reader :cache_identifier, :feature_category, :backing_resource
private
def fetch_feature_category!(feature_category)
return feature_category if feature_category == Client::DEFAULT_FEATURE_CATEGORY
Gitlab::FeatureCategories.default.get!(feature_category)
end
def fetch_backing_resource!(resource)
return resource if VALID_BACKING_RESOURCES.include?(resource)
raise "Unknown backing resource: #{resource}" if Gitlab.dev_or_test_env?
Client::DEFAULT_BACKING_RESOURCE
end
end
end
end
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