actioncable/lib/action_cable/connection/tagged_logger_proxy.rb
# frozen_string_literal: true
# :markup: markdown
module ActionCable
module Connection
# # Action Cable Connection TaggedLoggerProxy
#
# Allows the use of per-connection tags against the server logger. This wouldn't
# work using the traditional ActiveSupport::TaggedLogging enhanced Rails.logger,
# as that logger will reset the tags between requests. The connection is
# long-lived, so it needs its own set of tags for its independent duration.
class TaggedLoggerProxy
attr_reader :tags
def initialize(logger, tags:)
@logger = logger
@tags = tags.flatten
end
def add_tags(*tags)
@tags += tags.flatten
@tags = @tags.uniq
end
def tag(logger, &block)
if logger.respond_to?(:tagged)
current_tags = tags - logger.formatter.current_tags
logger.tagged(*current_tags, &block)
else
yield
end
end
%i( debug info warn error fatal unknown ).each do |severity|
define_method(severity) do |message = nil, &block|
log severity, message, &block
end
end
private
def log(type, message, &block) # :doc:
tag(@logger) { @logger.send type, message, &block }
end
end
end
end