Class: CC::Service::Invocation::WithMetrics

Inherits:
Object
  • Object
show all
Defined in:
lib/cc/service/invocation/with_metrics.rb

Instance Method Summary collapse

Constructor Details

#initialize(invocation, statsd, prefix = nil) ⇒ WithMetrics

Returns a new instance of WithMetrics.



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# File 'lib/cc/service/invocation/with_metrics.rb', line 3

def initialize(invocation, statsd, prefix = nil)
  @invocation = invocation
  @statsd = statsd
  @prefix = prefix
end

Instance Method Details

#call ⇒ Object 



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# File 'lib/cc/service/invocation/with_metrics.rb', line 9

def call
  start_time = Time.now

  result = @invocation.call
  @statsd.increment(success_key)

  result
rescue => ex
  @statsd.increment(error_key(ex))
  raise ex
ensure
  duration = ((Time.now - start_time) * 1_000).round
  @statsd.timing(timing_key, duration)
end

#error_key(ex) ⇒ Object 



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# File 'lib/cc/service/invocation/with_metrics.rb', line 32

def error_key(ex)
  error_string = ex.class.name.underscore.tr("/", "-")
  ["services.errors", @prefix, error_string].compact.join(".")
end

#success_key ⇒ Object 



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# File 'lib/cc/service/invocation/with_metrics.rb', line 24

def success_key
  ["services.invocations", @prefix].compact.join(".")
end

#timing_key ⇒ Object 



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# File 'lib/cc/service/invocation/with_metrics.rb', line 28

def timing_key
  ["services.timing", @prefix].compact.join(".")
end