Module: Tengine::Core::MethodTraceable

Included in:
Bootstrap, HeartbeatWatcher, Kernel, Plugins, Scheduler
Defined in:
lib/tengine/core/method_traceable.rb

Class Attribute Summary collapse

Instance Method Summary collapse

Class Attribute Details

.disabled ⇒ Object

Returns the value of attribute disabled.



6
7
8
 
# File 'lib/tengine/core/method_traceable.rb', line 6

def disabled
  @disabled
end

Instance Method Details

#method_trace(*symbols) ⇒ Object 



9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
 
# File 'lib/tengine/core/method_traceable.rb', line 9

def method_trace(*symbols)
  symbols.each do |symbol|
    original_method = :"_unmethod_traceable_#{symbol}"
    class_eval(<<-EOS, __FILE__, __LINE__ +1)
      if method_defined?(:#{original_method})                                  # if method_defined?(:_unmemoized_mime_type)
        raise "Already method_tracing #{symbol}"                               #   raise "Already memoized mime_type"
      end                                                                      # end
      alias #{original_method} #{symbol}                                       # alias _unmemoized_mime_type mime_type

      def #{symbol}(*args, &block)
        disabled = Tengine::Core::MethodTraceable.disabled
        begin
          Tengine::Core::stdout_logger.info("\#{self.class.name}##{symbol} called") unless disabled
          result = #{original_method}(*args, &block)
          Tengine::Core::stdout_logger.info("\#{self.class.name}##{symbol} complete") unless disabled
          return result
        rescue Exception => e
          unless e.instance_variable_get(:@__traced__) || disabled
            Tengine::Core::stderr_logger.error("\#{self.class.name}##{symbol} failure. [\#{e.class.name}] \#{e.message}\n  " << e.backtrace.join("\n  "))
            e.instance_variable_set(:@__traced__, true)
          end
          raise
        end
      end

    EOS
  end
end