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module ActionCable
module Connection
# Allows the use of per-connection tags against the server logger. This wouldn't work using the traditional
# <tt>ActiveSupport::TaggedLogging</tt> 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)
if logger.respond_to?(:tagged)
current_tags = tags - logger.formatter.current_tags
logger.tagged(*current_tags) { yield }
else
yield
end
end
%i( debug info warn error fatal unknown ).each do |severity|
define_method(severity) do |message|
log severity, message
end
end
private
def log(type, message) # :doc:
tag(@logger) { @logger.send type, message }
end
end
end
end
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