Module: NewRelic::Coerce

Included in:
Agent::RequestSampler, Agent::SqlTrace, Agent::ThreadProfile, Agent::ThreadProfile::Node, MetricData, NoticedError, TransactionSample, TransactionSample::Segment
Defined in:
lib/new_relic/coerce.rb

Overview

We really don’t want to send bad values to the collector, and it doesn’t accept types like Rational that have occasionally slipped into our data.

These methods are intended to safely coerce things into the form we want, to provide documentation of expected types on to_collector_array methods, and to log failures if totally invalid data gets into outgoing data

Instance Method Summary collapse

Instance Method Details

#float(value, context = nil) ⇒ Object 



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# File 'lib/new_relic/coerce.rb', line 20

def float(value, context=nil)
  result = Float(value)
  raise "Value #{result.inspect} is not finite." unless result.finite?
  result
rescue => error
  log_failure(value, Float, context, error)
  0.0
end

#int(value, context = nil) ⇒ Object 



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# File 'lib/new_relic/coerce.rb', line 13

def int(value, context=nil)
  Integer(value)
rescue => error
  log_failure(value, Integer, context, error)
  0
end

#log_failure(value, type, context, error) ⇒ Object 



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# File 'lib/new_relic/coerce.rb', line 37

def log_failure(value, type, context, error)
  msg = "Unable to convert '#{value}' to #{type}"
  msg += " in context '#{context}'" if context
  NewRelic::Agent.logger.warn(msg, error)
end

#string(value, context = nil) ⇒ Object 



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# File 'lib/new_relic/coerce.rb', line 29

def string(value, context=nil)
  return value if value.nil?
  String(value)
rescue => error
  log_failure(value.class, String, context, error)
  ""
end