Module: StateFlow::ExceptionHandlerClient

Included in:
Event, EventClient
Defined in:
lib/state_flow/exception_handler_client.rb

Instance Method Summary collapse

Instance Method Details

#exception_handlers ⇒ Object

例外ハンドラの配列を返します。 StateFlow::Stateはこれを上書きして親のハンドラも含めて返します。



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# File 'lib/state_flow/exception_handler_client.rb', line 8

def exception_handlers
  events.select{|ev| ev.is_a?(ExceptionHandler)}
end

#exception_handling(context, &block) ⇒ Object 



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# File 'lib/state_flow/exception_handler_client.rb', line 12

def exception_handling(context, &block)
  if context.force_recovering?
    return context.with_force_recovering(self, :retry_in_recovering, context, &block)
  end

  handlers = exception_handlers
  return yield if handlers.empty?
  ActiveRecord::Base.logger.debug("---- exception_handling BEGIN by #{self.inspect}")
  begin
    return yield
    ActiveRecord::Base.logger.debug("---- exception_handling END by #{self.inspect}")
  rescue Exception => exception
    context.exceptions << exception
    context.trace(exception)
    if recover_handler = handlers.detect{|handler| handler.match?(exception)}
      raise ::StateFlow::RecoverableException.new(recover_handler, exception)
    else
      context.log_with_stack_trace(:error, "NOT RECOVERED", 
        :exception => exception, :backtrace => true, 
        :exception_handlers => handlers, :recover_handler => recover_handler)
      raise exception
    end
  end
end