Class: Resque::Metrics::Backends::Statsd

Inherits:
Object
  • Object
show all
Defined in:
lib/resque/metrics/backends/statsd.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(statsd, metric_prefix = 'resque') ⇒ Statsd

Returns a new instance of Statsd.



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# File 'lib/resque/metrics/backends/statsd.rb', line 7

def initialize(statsd, metric_prefix = 'resque')
  @statsd = statsd
  @metric_prefix = metric_prefix
end

Instance Attribute Details

#metric_prefix ⇒ Object

Returns the value of attribute metric_prefix.



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# File 'lib/resque/metrics/backends/statsd.rb', line 5

def metric_prefix
  @metric_prefix
end

#statsd ⇒ Object

Returns the value of attribute statsd.



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# File 'lib/resque/metrics/backends/statsd.rb', line 5

def statsd
  @statsd
end

Instance Method Details

#increment_metric(metric, by = 1) ⇒ Object 



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# File 'lib/resque/metrics/backends/statsd.rb', line 12

def increment_metric(metric, by = 1)
  if metric =~ /^(.+)(?:_job)?_(time|count)(?::(queue|job):(.*))?$/
    event = $1
    event = 'complete' if event == 'job'

    time_or_count = $2
    queue_or_job = $3
    queue_or_job_name = $4
    key = if queue_or_job && queue_or_job_name
            # ie resque.complete.queue.high.count, resque.failed.job.Index.timing
            "#{metric_prefix}.#{event}.#{queue_or_job}.#{queue_or_job_name}.#{time_or_count}"
          else

            # ie resque.complete.time
            "#{metric_prefix}.#{event}.#{time_or_count}"
          end
    case time_or_count
    when 'time'
      statsd.timing key, by
    when 'count'
      statsd.increment key, by
    else
      raise "Not sure how to increment_metric for a #{time_or_count} metric (#{metric})"
    end
  elsif metric =~ /^payload_size(?::(queue|job):(.*))?$/
    queue_or_job = $1
    queue_or_job_name = $2
    key = if queue_or_job && queue_or_job_name
            # ie resque.complete.queue.high.count, resque.failed.job.Index.timing
            "#{metric_prefix}.payload_size.#{queue_or_job}.#{queue_or_job_name}.#{time_or_count}"
          else
            "#{metric_prefix}.payload_size.#{time_or_count}"
          end
    statsd.increment key, by
  else
    raise "Not sure how to increment_metric #{metric}"
  end
end

#set_metric(metric, val) ⇒ Object 



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# File 'lib/resque/metrics/backends/statsd.rb', line 51

def set_metric(metric, val)
  if metric =~ /^depth(?::(failed|pending|queue)(?::(.+))?)?$/
    key = "#{metric_prefix}.#{metric.gsub(':', '.')}"
    statsd.gauge key, val
  else
    raise "Not sure how to set_metric #{metric}"
  end
end