Class: SpeedGun::Profiler::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/speed_gun/profiler/base.rb

Direct Known Subclasses

ActionController, ActionView, ActiveRecord, Js, Manual, Rack

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Base

Returns a new instance of Base.



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# File 'lib/speed_gun/profiler/base.rb', line 59

def initialize
  @id = SecureRandom.uuid
  @parent_profile_id = nil
  @elapsed_time = 0
  @backtrace = []
end

Instance Attribute Details

#backtrace ⇒ Object (readonly)

Returns the value of attribute backtrace.



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# File 'lib/speed_gun/profiler/base.rb', line 65

def backtrace
  @backtrace
end

#elapsed_time ⇒ Object (readonly)

Returns the value of attribute elapsed_time.



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# File 'lib/speed_gun/profiler/base.rb', line 65

def elapsed_time
  @elapsed_time
end

#id ⇒ Object (readonly)

Returns the value of attribute id.



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# File 'lib/speed_gun/profiler/base.rb', line 65

def id
  @id
end

#parent_profile_id ⇒ Object (readonly)

Returns the value of attribute parent_profile_id.



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# File 'lib/speed_gun/profiler/base.rb', line 65

def parent_profile_id
  @parent_profile_id
end

Class Method Details

.hook_method(klass, method_name) ⇒ Object 



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# File 'lib/speed_gun/profiler/base.rb', line 21

def self.hook_method(klass, method_name)
  without_profiling = "#{method_name}_withtout_profile".intern
  with_profiling = "#{method_name}_with_profile".intern
  return unless klass.send(:method_defined?, method_name)
  return if klass.send(:method_defined?, with_profiling)

  profiler = profiler_type
  klass.send(:alias_method, without_profiling, method_name)
  klass.send(:define_method, with_profiling) do |*args, &block|
    return send(without_profiling, *args, &block) unless SpeedGun.current

    profile_args = [self] + args
    SpeedGun.current.profile(profiler, *profile_args) do
      send(without_profiling, *args, &block)
    end
  end
  klass.send(:alias_method, method_name, with_profiling)
end

.inherited(klass) ⇒ Object 



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# File 'lib/speed_gun/profiler/base.rb', line 17

def self.inherited(klass)
  SpeedGun::Profiler::PROFILERS[klass.profiler_type] = klass
end

.label ⇒ Object 



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# File 'lib/speed_gun/profiler/base.rb', line 5

def self.label
  name.sub(/.*::/, '')
end

.load(data) ⇒ Object 



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# File 'lib/speed_gun/profiler/base.rb', line 40

def self.load(data)
  data.delete('label')
  type = data.delete('type')
  profiler = SpeedGun::Profiler::PROFILERS[type.to_sym]
  profile = profiler.new

  data.each_pair do |key, val|
    profile.send(:instance_variable_set, :"@#{key}", val)
  end

  profile
end

.profile(profiler, *args, &block) ⇒ Object 



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# File 'lib/speed_gun/profiler/base.rb', line 53

def self.profile(profiler, *args, &block)
  profile = new
  profiler.profiles << profile
  profile.profile(*args, &block)
end

.profiler_type ⇒ Object 



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# File 'lib/speed_gun/profiler/base.rb', line 9

def self.profiler_type
  name\
    .sub(/.*::/, '')\
    .gsub(/(.)([A-Z])/) { |m| "#{$1}_#{$2.downcase}" }\
    .downcase\
    .to_sym
end

Instance Method Details

#as_msgpack(*args) ⇒ Object 



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# File 'lib/speed_gun/profiler/base.rb', line 104

def as_msgpack(*args)
  hash = {}
  instance_variables.each do |key|
    unless key.to_s =~ /^\@_/
      hash[key.to_s.sub(/^\@/, '')] = instance_variable_get(key)
    end
  end
  hash['type'] = type.to_s
  hash['label'] = label
  hash['title'] = title
  hash
end

#html ⇒ Object 



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# File 'lib/speed_gun/profiler/base.rb', line 71

def html
  ''
end

#label ⇒ Object 



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# File 'lib/speed_gun/profiler/base.rb', line 75

def label
  self.class.label
end

#measure(&block) ⇒ Object 



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# File 'lib/speed_gun/profiler/base.rb', line 96

def measure(&block)
  now = Time.now
  result = yield
  @elapsed_time = Time.now - now

  result
end

#profile(*args, &block) ⇒ Object 



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# File 'lib/speed_gun/profiler/base.rb', line 83

def profile(*args, &block)
  @backtrace = cleanup_caller(caller(3))
  parent_profile = SpeedGun.current.now_profile
  SpeedGun.current.now_profile = self
  call_without_defined(:before_profile, *args, &block)
  result = measure(&block)
  call_without_defined(:after_profile, *args, &block)
  return result
ensure
  SpeedGun.current.now_profile = parent_profile
  @parent_profile_id = parent_profile.id if parent_profile
end

#title ⇒ Object 



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# File 'lib/speed_gun/profiler/base.rb', line 67

def title
  warn 'Override this method'
end

#to_msgpack(*args) ⇒ Object 



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# File 'lib/speed_gun/profiler/base.rb', line 117

def to_msgpack(*args)
  as_msgpack(*args).to_msgpack(*args)
end

#type ⇒ Object 



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# File 'lib/speed_gun/profiler/base.rb', line 79

def type
  self.class.profiler_type
end