class Mysql2::Metrics
Public Class Methods
add_tracer(method)
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# File lib/mysql2/metrics.rb, line 17 def self.add_tracer(method) klass = ::Mysql2::Client unless klass.method_defined?("#{method}_without_metrics") klass.__send__(:alias_method, "#{method}_without_metrics", method) klass.__send__(:define_method, "#{method}_with_metrics") do |*args| query = args.first ::Mysql2::Metrics.measure_time(query) do send("#{method}_without_metrics", *args) end end klass.__send__(:alias_method, method, "#{method}_with_metrics") end end
logger()
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# File lib/mysql2/metrics.rb, line 11 def self.logger @logger ||= Logger.new($stdout).tap {|log| log.formatter = ::Mysql2::Metrics::LtsvFormatter.new } end
logger=(logger)
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# File lib/mysql2/metrics.rb, line 7 def self.logger=(logger) @logger = logger end
measure_time(query) { || ... }
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# File lib/mysql2/metrics.rb, line 31 def self.measure_time(query, &block) start = Time.now ret = yield elapsed = Time.now - start logger = Mysql2::Metrics.logger logger.info({ query: query, elapsed: elapsed.to_f }) ret end