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Versions: 14
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Contents
require "cabin"
require "json"
require "eventmachine"
# Wrap Ruby stdlib's logger and make it EventMachine friendly. This
# allows you to output to a normal ruby logger with Cabin. Since
# Ruby's Logger has a love for strings alone, this wrapper will
# convert the data/event to json before sending it to Logger.
class Cabin::Outputs::EM::StdlibLogger
public
def initialize(logger)
@logger_queue = EM::Queue.new
@logger = logger
# Consume log lines from a queue and send them with logger
consumer
end
def consumer
line_sender = Proc.new do |line|
# This will call @logger.info(data) or something similar
@logger.send(line[:method], line[:message])
EM::next_tick do
# Pop another line off the queue and do it again
@logger_queue.pop(&line_sender)
end
end
# Pop a line off the queue and send it with logger
@logger_queue.pop(&line_sender)
end
# Receive an event
public
def <<(data)
line = Hash.new
line[:method] = data[:level] || "info"
line[:message] = "#{data[:message]} #{data.to_json}"
if EM::reactor_running?
# Push line onto queue for later sending
@logger_queue.push(line)
else
# This will call @logger.info(data) or something similar
@logger.send(line[:method], line[:message])
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems