Class: Fluent::Plugin::CMetricsMetrics

Inherits:
Metrics
  • Object
show all
Defined in:
lib/fluent/plugin/metrics_cmetrics.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ CMetricsMetrics

Returns a new instance of CMetricsMetrics.



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# File 'lib/fluent/plugin/metrics_cmetrics.rb', line 30

def initialize
  super
  @cmetrics = nil
  @default_labels_keys = []
  @default_labels_values = []
  @_subsystem = nil
end

Instance Attribute Details

#_subsystem ⇒ Object (readonly)

_subsystem for testing.



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# File 'lib/fluent/plugin/metrics_cmetrics.rb', line 26

def _subsystem
  @_subsystem
end

#cmetrics ⇒ Object (readonly)

_subsystem for testing.



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# File 'lib/fluent/plugin/metrics_cmetrics.rb', line 26

def cmetrics
  @cmetrics
end

Instance Method Details

#add(value) ⇒ Object 



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# File 'lib/fluent/plugin/metrics_cmetrics.rb', line 104

def add(value)
  @cmetrics.add(value, @labels_values)
end

#calyptia_metrics_subsystem_mapper(subsystem) ⇒ Object 



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# File 'lib/fluent/plugin/metrics_cmetrics.rb', line 78

def calyptia_metrics_subsystem_mapper(subsystem)
  case subsystem.to_s
  when "buffer"
    # Calyptia's service should handle buffer metrics as storage.
    subsystem = "storage"
  end
  @_subsystem = subsystem
  subsystem
end

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin/metrics_cmetrics.rb', line 38

def configure(conf)
  super

  default_labels.each do |key, value|
    @default_labels_keys << key
    @default_labels_values << value
  end
  # Handle label(s) within <system> directive as default label(s)
  unless labels.empty?
    labels.each do |key, value|
      @default_labels_keys << key
      @default_labels_values << value
    end
  end
  @labels_keys = @default_labels_keys
  @labels_values = @default_labels_values
  if use_gauge_metric
    @cmetrics = ::CMetrics::Gauge.new
    class << self
      alias_method :dec, :dec_gauge
      alias_method :sub, :sub_gauge
    end
  else
    @cmetrics = ::CMetrics::Counter.new
  end
end

#create(namespace:, subsystem:, name:, help_text:, labels: {}) ⇒ Object 



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# File 'lib/fluent/plugin/metrics_cmetrics.rb', line 65

def create(namespace:, subsystem:, name:, help_text:, labels: {})
  if @enable_calyptia_metrics_mapping
    subsystem = calyptia_metrics_subsystem_mapper(subsystem)
  end
  @cmetrics.create(namespace, subsystem, name, help_text, @labels_keys)
  # Add specified in #create label(s) as static label(s).
  unless labels.empty?
    labels.each do |k,v|
      @cmetrics.add_label(k, v)
    end
  end
end

#dec_gauge ⇒ Object 



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# File 'lib/fluent/plugin/metrics_cmetrics.rb', line 100

def dec_gauge
  @cmetrics.dec(@labels_values)
end

#get ⇒ Object 



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# File 'lib/fluent/plugin/metrics_cmetrics.rb', line 92

def get
  @cmetrics.val(@labels_values)
end

#inc ⇒ Object 



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# File 'lib/fluent/plugin/metrics_cmetrics.rb', line 96

def inc
  @cmetrics.inc(@labels_values)
end

#multi_workers_ready? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fluent/plugin/metrics_cmetrics.rb', line 88

def multi_workers_ready?
  true
end

#set(value) ⇒ Object 



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# File 'lib/fluent/plugin/metrics_cmetrics.rb', line 112

def set(value)
  @cmetrics.set(value, @labels_values)
end

#sub_gauge(value) ⇒ Object 



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# File 'lib/fluent/plugin/metrics_cmetrics.rb', line 108

def sub_gauge(value)
  @cmetrics.sub(value, @labels_values)
end