Class: Scout::Realtime::Metric

Inherits:
Object
  • Object
show all
Defined in:
lib/scout_realtime/lib/metric.rb

Direct Known Subclasses

Cpu, Disk, Memory, Network, Processes

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Metric

Returns a new instance of Metric.



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# File 'lib/scout_realtime/lib/metric.rb', line 5

def initialize
  @historical_metrics = Hash.new
end

Instance Attribute Details

#historical_metrics ⇒ Object

Returns the value of attribute historical_metrics.



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# File 'lib/scout_realtime/lib/metric.rb', line 2

def historical_metrics
  @historical_metrics
end

#latest_run ⇒ Object (readonly)

Returns the value of attribute latest_run.



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# File 'lib/scout_realtime/lib/metric.rb', line 3

def latest_run
  @latest_run
end

Class Method Details

.descendants ⇒ Object 



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# File 'lib/scout_realtime/lib/metric.rb', line 33

def self.descendants
  [Scout::Realtime::Memory, Scout::Realtime::Cpu, Scout::Realtime::Disk, Scout::Realtime::Network, Scout::Realtime::Processes]
end

.metadata ⇒ Object 



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# File 'lib/scout_realtime/lib/metric.rb', line 20

def self.metadata
  meta = self::FIELDS
  meta.keys.each_with_object(meta) do |field_name, formatted_meta|
    formatted_meta[field_name]['label'] ||= field_name.to_s.capitalize.gsub('_', ' ')
    formatted_meta[field_name]['units'] ||= ''
    formatted_meta[field_name]['precision'] ||= 1 
  end
end

.short_name ⇒ Object 



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# File 'lib/scout_realtime/lib/metric.rb', line 29

def self.short_name
  self.to_s.split('::').last.downcase.to_sym
end

Instance Method Details

#run! ⇒ Object 



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# File 'lib/scout_realtime/lib/metric.rb', line 9

def run!
  begin
    @latest_run = @collector.run
  rescue Errno::ENOENT => e
    print "#############################################################################"
    puts "#{e.class}: #{e.message}"
    @latest_run = {}
  end
  update_historical_metrics(latest_run)
end