Class: Imprint::Tracer

Inherits:
Object
  • Object
show all
Defined in:
lib/imprint/tracer.rb

Constant Summary collapse

TRACER_HEADER = 
'HTTP_IMPRINTID'
TRACER_KEY = 
'IMPRINTID'
RAILS_REQUEST_ID = 
"action_dispatch.request_id"
TRACE_ID_DEFAULT = 
"-1"
TRACER_TIMESTAMP = 
"TIMESTAMP"

Class Method Summary collapse

Class Method Details

.get_pid ⇒ Object 



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# File 'lib/imprint/tracer.rb', line 30

def self.get_pid
  "#{$$}"
end

.get_trace_id ⇒ Object 



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# File 'lib/imprint/tracer.rb', line 18

def self.get_trace_id
  if Thread.current.key?(TRACER_KEY)
    Thread.current[TRACER_KEY]
  else
    TRACE_ID_DEFAULT
  end
end

.get_trace_timestamp ⇒ Object 



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# File 'lib/imprint/tracer.rb', line 26

def self.get_trace_timestamp
  Time.now.utc.strftime("%Y-%m-%dT%H:%M:%S.%6N")
end

.insert_trace_id_in_message(message, severity = nil) ⇒ Object 



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# File 'lib/imprint/tracer.rb', line 34

def self.insert_trace_id_in_message(message, severity = nil)
  if message && message.is_a?(String) && message.length > 1 && !message.include?('trace_id=')
    trace_id = get_trace_id

    if trace_id && trace_id != TRACE_ID_DEFAULT
      message.insert 0, "#{get_trace_timestamp} #{severity} "
      message.gsub!("\n"," process_pid=#{get_pid} trace_id=#{trace_id}\n")
    end
  end
end

.rand_trace_id ⇒ Object 



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# File 'lib/imprint/tracer.rb', line 45

def self.rand_trace_id
  SecureRandom.uuid
end

.set_trace_id(id, rack_env = {}) ⇒ Object 



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# File 'lib/imprint/tracer.rb', line 11

def self.set_trace_id(id, rack_env = {})
  Thread.current[TRACER_TIMESTAMP] = Time.now.utc.strftime("%Y-%m-%dT%H:%M:%S.%6N")
  Thread.current[TRACER_KEY] = id
  # setting to the rack_env, gives error tracking support in some systems
  rack_env[TRACER_KEY] = id
end