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Contents
# frozen_string_literal: true
module Karafka
module Contracts
# Consumer group topic validation rules.
class Topic < Base
configure do |config|
config.error_messages = YAML.safe_load(
File.read(
File.join(Karafka.gem_root, 'config', 'errors.yml')
)
).fetch('en').fetch('validations').fetch('topic')
end
required(:consumer) { |val| !val.nil? }
required(:deserializer) { |val| !val.nil? }
required(:id) { |val| val.is_a?(String) && Contracts::TOPIC_REGEXP.match?(val) }
required(:kafka) { |val| val.is_a?(Hash) && !val.empty? }
required(:max_messages) { |val| val.is_a?(Integer) && val >= 1 }
required(:initial_offset) { |val| %w[earliest latest].include?(val) }
required(:max_wait_time) { |val| val.is_a?(Integer) && val >= 10 }
required(:name) { |val| val.is_a?(String) && Contracts::TOPIC_REGEXP.match?(val) }
required(:subscription_group) { |val| val.nil? || (val.is_a?(String) && !val.empty?) }
virtual do |data, errors|
next unless errors.empty?
value = data.fetch(:kafka)
begin
# This will trigger rdkafka validations that we catch and re-map the info and use dry
# compatible format
Rdkafka::Config.new(value).send(:native_config)
nil
rescue Rdkafka::Config::ConfigError => e
[[%w[kafka], e.message]]
end
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems