2 def replay(filename, multiplier = 1, simulated_job_uuid = nil)
3 raise "Environment must be development or test" unless [ 'test', 'development' ].include? ENV['RAILS_ENV']
5 multiplier = multiplier.to_f
6 multiplier = 1.0 if multiplier <= 0
8 actual_start_time = Time.now
12 File.open(filename).each.with_index do |line, index|
14 cols[:timestamp], rest_of_line = line.split(' ', 2)
16 cols[:timestamp] = Time.strptime( cols[:timestamp], "%Y-%m-%d_%H:%M:%S" )
18 if line =~ /^((?:Sun|Mon|Tue|Wed|Thu|Fri|Sat) (?:Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec) \d{1,2} \d\d:\d\d:\d\d \d{4}) (.*)/
19 # Wed Nov 19 07:12:39 2014
20 cols[:timestamp] = Time.strptime( $1, "%a %b %d %H:%M:%S %Y" )
23 STDERR.puts "Ignoring log line because of unknown time format: #{line}"
26 cols[:job_uuid], cols[:pid], cols[:task], cols[:event_type], cols[:message] = rest_of_line.split(' ', 5)
27 # Override job uuid with a simulated one if specified
28 cols[:job_uuid] = simulated_job_uuid || cols[:job_uuid]
29 # determine when we want to simulate this log being created, based on the time multiplier
30 log_start_time = cols[:timestamp] if log_start_time.nil?
31 log_time = cols[:timestamp]
32 actual_elapsed_time = Time.now - actual_start_time
33 log_elapsed_time = log_time - log_start_time
34 modified_elapsed_time = log_elapsed_time / multiplier
35 pause_time = modified_elapsed_time - actual_elapsed_time
36 sleep pause_time if pause_time > 0
37 # output log entry for debugging and create it in the current environment's database
38 puts "#{index} #{cols.to_yaml}\n"
40 event_at: Time.zone.local_to_utc(cols[:timestamp]),
41 object_uuid: cols[:job_uuid],
42 event_type: cols[:event_type],
43 properties: { 'text' => line }