Class: InsightAgent

Inherits:
Object
  • Object
show all
Defined in:
lib/agent/insight_agent.rb

Overview

Rails entry point for the insight-agent

Constant Summary collapse

@@dispatcher = 
nil
@@events =

Hash of eventId => EventTree

{}

Instance Method Summary collapse

Constructor Details

#initialize(app, url, user, pass) ⇒ InsightAgent

Returns a new instance of InsightAgent.



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# File 'lib/agent/insight_agent.rb', line 7

def initialize(app, url, user, pass)
  @@dispatcher = TraceDispatcher.new(url, user, pass)
  TraceBuilder.instance.setApplication(app)
  @@dispatcher.start
  puts "dispatcher started"
  initialize_active_support()
end

Instance Method Details

#initialize_active_support ⇒ Object 



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# File 'lib/agent/insight_agent.rb', line 20

def initialize_active_support()
  # Subscribe to every event in the system
  ActiveSupport::Notifications.subscribe do |name, start, finish, id, payload|
    #puts id + " " + name + " " + start.to_f.to_s + "->" + finish.to_f.to_s
    eventTree = @@events[id]
    if eventTree == nil
      eventTree = EventTree.new
      @@events[id] = eventTree
    end

    # All properties should be simple strings
    properties = {}
    payload.each { |key, value| properties[key] = value.to_s }

    # Effectively endpoint analyzers; events are collected by id
    # until the event with the name,  "process_action.action_controller"
    # at that point the events are dumped into a trace/frame stack and
    # stored on the TraceQueue.
    # TODO:
    #    - Deletes on the model do not seem to be picked up here
    #    - If a series of events are collected which do not end
    #      with this named event, a dud EventTree could be sitting
    #      around in the hash
    if name == "process_action.action_controller"
      label = payload[:path]
      eventTree.addEvent(name, label, start, finish, properties)
      trace = eventTree.dumpFrames
      TraceQueue.instance.addTrace(trace)
      @@events[id] = nil
    else
      eventTree.addEvent(name, name, start, finish, properties)
    end

  end
end

#initialize_plugins ⇒ Object 



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# File 'lib/agent/insight_agent.rb', line 15

def initialize_plugins()
  # load a series of plugins from a known location

end

#stop ⇒ Object 



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# File 'lib/agent/insight_agent.rb', line 56

def stop
  @@dispatcher.stop
end