Class: Metrics::Instruments::Gauge

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby-metrics/instruments/gauge.rb

Instance Method Summary collapse

Constructor Details

#initialize(&block) ⇒ Gauge

Returns a new instance of Gauge.

Raises:

  • (ArgumentError) 


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# File 'lib/ruby-metrics/instruments/gauge.rb', line 4

def initialize(&block)
  raise ArgumentError, "a block is required" unless block_given?
  @block = block
end

Instance Method Details

#as_json(*_) ⇒ Object 



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# File 'lib/ruby-metrics/instruments/gauge.rb', line 13

def as_json(*_)
  value = get
  value.respond_to?(:as_json) ? value.as_json : value
end

#get ⇒ Object 



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# File 'lib/ruby-metrics/instruments/gauge.rb', line 9

def get
  instance_exec(&@block)
end

#to_json(*_) ⇒ Object 



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# File 'lib/ruby-metrics/instruments/gauge.rb', line 18

def to_json(*_)
  as_json.to_json
end