Kohana Exception extention

kohana_exception.php

<?php defined('SYSPATH') or die('No direct access allowed.');

class Kohana_Exception extends Kohana_Kohana_Exception {

	public static function handler(Exception $e)
	{
		if (Kohana::$environment > Kohana::PRODUCTION)
		{
			parent::handler($e);
		}
		else
		{
			$error_code = $e->getCode();

			// Avoid growing of error log
			if($error_code != 404)
				Kohana::$log->add(Log::ERROR, parent::text($e));

			// Attributes for error controller
			$attributes = array(
				'lang'    => I18n::lang(),
				'action'  => 500, // default action is 500 - for error 500
				'message' => rawurldecode($e->getMessage())
			);

			// Specify action based on HTTP error code
			if ($e instanceof HTTP_Exception)
			{
				$attributes['action'] = $error_code;
				$status = $error_code;
			}

			try
			{
				echo Request::factory(Route::url('error', $attributes))
					->execute()
					->status($status)
					->send_headers()
					->body();
			}
			catch (Exception $e)
			{
				parent::handler($e);
			}

			// Send a email to admin on error occurs
			if($error_code != 404)
			{
				Email::connect();
				Email::send(
					Kohana::$config->load('email')->admin,
					Kohana::$config->load('email')->noreply,
					__('Site error!'),
					$attributes['message'],
					TRUE
				);
			}
		}
	}
}