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# rubocop:disable Naming/FileName
# frozen_string_literal: true
module Gitlab
module Redis
class HLL
BATCH_SIZE = 300
KEY_REGEX = %r{\A(\w|-|:)*\{\w*\}(\w|-|:)*\z}
KeyFormatError = Class.new(StandardError)
def self.count(params)
self.new.count(**params)
end
def self.add(params)
self.new.add(**params)
end
def count(keys:)
Gitlab::Redis::SharedState.with do |redis|
redis.pfcount(*keys)
end
end
# Check a basic format for the Redis key in order to ensure the keys are in the same hash slot
#
# Examples of keys
# project:{1}:set_a
# project:{1}:set_b
# project:{2}:set_c
# 2020-216-{project_action}
# i_{analytics}_dev_ops_score-2020-32
def add(key:, value:, expiry:)
validate_key!(key)
Gitlab::Redis::SharedState.with do |redis|
redis.multi do |multi|
Array.wrap(value).each_slice(BATCH_SIZE) { |batch| multi.pfadd(key, batch) }
multi.expire(key, expiry)
end
end
end
private
def validate_key!(key)
return if KEY_REGEX.match?(key)
raise KeyFormatError, "Invalid key format. #{key} key should have changeable parts in curly braces. See https://docs.gitlab.com/ee/development/redis.html#multi-key-commands"
end
end
end
end
# rubocop:enable Naming/FileName
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