Class: Caliper::Tracer

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(env) ⇒ Tracer

Returns a new instance of Tracer.



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# File 'lib/caliper/tracer.rb', line 9

def initialize(env)
  @uuid = UUID.generate

  @http_method = env['REQUEST_METHOD']
  @uri = env['REQUEST_URI'] # full URI
  @path = env['PATH_INFO'] # user path_info because it's in the rack spec rather than REQUEST_PATH

  @remote_ip = env["action_dispatch.remote_ip"] #requesting ip
  @remote_ip = @remote_ip.first if @remote_ip.is_a?(Array)

  @host = Socket.gethostname

  @samples = []
end

Instance Attribute Details

#extra_info ⇒ Object

Returns the value of attribute extra_info.



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# File 'lib/caliper/tracer.rb', line 7

def extra_info
  @extra_info
end

#host ⇒ Object

Returns the value of attribute host.



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# File 'lib/caliper/tracer.rb', line 7

def host
  @host
end

#http_method ⇒ Object

Returns the value of attribute http_method.



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# File 'lib/caliper/tracer.rb', line 7

def http_method
  @http_method
end

#path ⇒ Object

Returns the value of attribute path.



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# File 'lib/caliper/tracer.rb', line 7

def path
  @path
end

#remote_ip ⇒ Object

Returns the value of attribute remote_ip.



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# File 'lib/caliper/tracer.rb', line 7

def remote_ip
  @remote_ip
end

#reqs ⇒ Object

Returns the value of attribute reqs.



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# File 'lib/caliper/tracer.rb', line 7

def reqs
  @reqs
end

#samples ⇒ Object

Returns the value of attribute samples.



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# File 'lib/caliper/tracer.rb', line 7

def samples
  @samples
end

#uri ⇒ Object

Returns the value of attribute uri.



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# File 'lib/caliper/tracer.rb', line 7

def uri
  @uri
end

#uuid ⇒ Object

Returns the value of attribute uuid.



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# File 'lib/caliper/tracer.rb', line 7

def uuid
  @uuid
end

Instance Method Details

#add_to_trace(data = {}) ⇒ Object 



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# File 'lib/caliper/tracer.rb', line 39

def add_to_trace(data = {})
  @extra_info = data
end

#finish ⇒ Object 



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# File 'lib/caliper/tracer.rb', line 43

def finish
  return true if samples.size == 0

  trace_data = {
    "uuid" => uuid,
    "http_method" => http_method,
    "uri" => uri,
    "path" => path,
    "remote_ip" => remote_ip.to_s,
    "host" => host,
    "reqs" => reqs,
    "extra_info" => extra_info,
    "samples" => []
  }

  samples.each do |sample|
    trace_data["samples"] << {
      "name" => sample.name,
      "duration" => sample.duration,
      #"start" => sample.time,
      #"end" => sample.end,
      "payload" => sample.payload
    }
    if sample.name[/process_action.action_controller/]
      trace_data["view_runtime"] = sample.payload[:view_runtime]
      trace_data["db_runtime"] = sample.payload[:db_runtime]
      trace_data["duration"] = sample.duration
    end
  end
  CaliperApi.create_trace(
    Yajl::Encoder.encode({ "trace" => trace_data })
  )
end

#record(event) ⇒ Object 



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# File 'lib/caliper/tracer.rb', line 24

def record(event)
  event.payload.delete(:caliper_tracer) if event.payload[:caliper_tracer]
  return if event.name[/active_record/] && (event.payload[:name] == nil || event.payload[:name][/SCHEMA/])

  # strip un-required payload data for activerecord notifications
  if event.name[/active_record/]
    ["binds", "connection_id"].each do |key|
      event.payload.delete(key)
    end
  end

  #Caliper.logger.debug [event.name, event.time, event.end, event.transaction_id, event.payload].join("||")
  @samples << event
end