Class: StackifyRubyAPM::Spies::LoggingSpy Private

Inherits:
Object
  • Object
show all
Defined in:
lib/stackify_apm/spies/logging.rb

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Constant Summary collapse

LVL_LABEL =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

%w(DEBUG INFO WARN ERROR FATAL ANY).freeze

Instance Method Summary collapse

Instance Method Details

#install ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/stackify_apm/spies/logging.rb', line 11

def install
  Logging::Logger.class_eval do
    alias_method 'log_event_without_apm', 'log_event'

    # Log message formatted to an event object
    def log_event(event)
      return log_event_without_apm(event) unless StackifyRubyAPM.current_transaction

      begin
        name = 'logging'
        type = 'ext.logging'
        log_message = ''
        exception = nil

        obj = event.data

        case obj
        when String;
          log_message = obj
        when Exception
          log_message = obj.message
          exception = "(#{ obj.class.name })\n#{ obj.backtrace.join("\n") if obj.backtrace }"
        when nil;
          log_message = "(#{obj.class.name}) nil"
        else
          log_message = obj.to_s
        end

        ctx = Span::Context.new(
          CATEGORY: 'Log',
          SUBCATEGORY: 'Logging',
          LEVEL: LVL_LABEL[event.level] || 'ANY',
          MESSAGE: log_message,
          PREFIX: 'TRUE'
        )

        if exception
          ctx.EXCEPTION = exception
        end
      rescue Exception => e
        StackifyRubyAPM.agent.error "[LoggingSpy] Error: creating span context."
        StackifyRubyAPM.agent.error "[LoggingSpy] #{e.inspect}"
        return log_event_without_apm(event)
      end

      StackifyRubyAPM.span name, type, context: ctx do
        log_event_without_apm(event)
      end
    end
  end
end