Class: CanvasStatsd::Counter

Inherits:
Object
  • Object
show all
Defined in:
lib/canvas_statsd/counter.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(key, blocked_names = []) ⇒ Counter 



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# File 'lib/canvas_statsd/counter.rb', line 16

def initialize(key, blocked_names=[])
  @blocked_names = blocked_names
  @key = key
  @tls_key = "statsd.#{key}"
  self.class.register(self)
end

Instance Attribute Details

#blocked_names ⇒ Object (readonly)

Returns the value of attribute blocked_names.



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# File 'lib/canvas_statsd/counter.rb', line 14

def blocked_names
  @blocked_names
end

#key ⇒ Object (readonly)

Returns the value of attribute key.



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# File 'lib/canvas_statsd/counter.rb', line 13

def key
  @key
end

Class Method Details

.counters ⇒ Object 



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# File 'lib/canvas_statsd/counter.rb', line 4

def counters
  @counters ||= {}
end

.register(counter) ⇒ Object 



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# File 'lib/canvas_statsd/counter.rb', line 8

def register(counter)
  counters[counter.key] = counter
end

Instance Method Details

#accepted_name?(name) ⇒ Boolean 



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# File 'lib/canvas_statsd/counter.rb', line 39

def accepted_name?(name)
  !blocked_names.include?(name)
end

#count ⇒ Object 



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# File 'lib/canvas_statsd/counter.rb', line 35

def count
  Thread.current[@tls_key]
end

#finalize_count(cookie) ⇒ Object 



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# File 'lib/canvas_statsd/counter.rb', line 31

def finalize_count(cookie)
  Thread.current[@tls_key] - cookie
end

#start ⇒ Object 



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# File 'lib/canvas_statsd/counter.rb', line 23

def start
  Thread.current[@tls_key] ||= 0
end

#track(name) ⇒ Object 



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# File 'lib/canvas_statsd/counter.rb', line 27

def track(name)
  Thread.current[@tls_key] += 1 if Thread.current[@tls_key] && accepted_name?(name)
end