Module: XRuntime::Utils

Defined in:
lib/x_runtime/utils.rb

Constant Summary collapse

PROBELATESTFLAG = 
"XX-Runtime-Latest"
PROBEFLAG = 
"XX-Runtime"

Class Method Summary collapse

Class Method Details

.array_hashify ⇒ Object 



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# File 'lib/x_runtime/utils.rb', line 11

def array_hashify
  lambda { |array|
    hash = Hash.new
    array.each_slice(2) do |field, value|
      hash[field] = value
    end
    hash
  }
end

.probe(headers = {}) ⇒ Object

for Nginx log: log_format timing ‘$remote_addr - $remote_user [$time_local] “$status” $request “$http_user_agent” ’

'upstream_response_time $upstream_response_time '
'msec $msec request_time $request_time probe $upstream_http_xx_runtime';



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# File 'lib/x_runtime/utils.rb', line 30

def probe(headers={})
  headers[PROBEFLAG] = "0" unless headers[PROBEFLAG]
  
  if headers[PROBELATESTFLAG]
    last_probe = headers[PROBELATESTFLAG].to_f
    headers[PROBEFLAG] += ",#{"%.03f"%((Time.now.to_f - last_probe)*1000)}ms"
    headers[PROBEFLAG] += " AR:#{"%.03f"%ActiveRecord::LogSubscriber.runtime}ms" if (defined? ActiveRecord::LogSubscriber)
  end
  
  headers[PROBELATESTFLAG] = Time.now.to_f.to_s
end

.to_hash(data) ⇒ Object 



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# File 'lib/x_runtime/utils.rb', line 4

def to_hash(data)
  case data
  when Array
    array_hashify.call(data)
  end
end