Module: Koa::Logger

Defined in:
lib/koa/logger.rb

Class Method Summary collapse

Class Method Details

.appname ⇒ Object 



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# File 'lib/koa/logger.rb', line 28

def self.appname
  @prefix ||= ENV['APP_NAME'].downcase if ENV['APP_NAME']
  if defined? ::Rails
    @prefix ||= Rails.application.class.parent_name.downcase+"."
  end
  @prefix ||= ""
end

.count(name, val, data = {}) ⇒ Object 



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# File 'lib/koa/logger.rb', line 66

def self.count(name, val, data = {})
  librato_log("count", name, val, data)
end

.librato_log(type, name, val, data) ⇒ Object 



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# File 'lib/koa/logger.rb', line 40

def self.librato_log(type, name, val, data)
  name = prefix(name)
  data["#{type}##{name}"] = val
  log(data)
end

.log(data) ⇒ Object 



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# File 'lib/koa/logger.rb', line 54

def self.log(data)
  out.puts(stringify(data))
end

.measure(name, val, data = {}) ⇒ Object 



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# File 'lib/koa/logger.rb', line 70

def self.measure(name, val, data = {})
  librato_log("measure", name, val, data)
end

.measure_block(name, data = {}) ⇒ Object 



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# File 'lib/koa/logger.rb', line 58

def self.measure_block(name, data = {})
  start = Time.now
  result = yield
  elapsed = (Time.now.to_f - start.to_f) * 1000
  measure(name, elapsed.round.to_s+"ms", data)
  result
end

.out ⇒ Object 



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# File 'lib/koa/logger.rb', line 50

def self.out
  @out || $stdout
end

.out=(o) ⇒ Object 



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# File 'lib/koa/logger.rb', line 46

def self.out=(o)
  @out = o
end

.prefix(name) ⇒ Object 



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# File 'lib/koa/logger.rb', line 36

def self.prefix(name)
  appname+name
end

.sample(name, val, data = {}) ⇒ Object 



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# File 'lib/koa/logger.rb', line 74

def self.sample(name, val, data = {})
  librato_log("sample", name, val, data)
end

.stringify(data) ⇒ Object 



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# File 'lib/koa/logger.rb', line 78

def self.stringify(data)
  data.reduce(out=String.new) do |s, tup|
    s << [tup.first, tup.last].join("=") << " "
  end
end