xyzshop/helper/refill/LZRefillFactory.php

<?php

namespace refill;

require_once(BASE_HELPER_PATH . '/refill/RefillBase.php');
require_once(BASE_HELPER_PATH . '/refill/ProviderManager.php');

require_once(BASE_HELPER_PATH . '/refill/policy/IPolicy.php');
require_once(BASE_HELPER_PATH . '/refill/policy/lingzh/policy.php');
require_once(BASE_HELPER_PATH . '/refill/policy/chctl.php');
require_once(BASE_HELPER_PATH . '/refill/policy/ctl_item.php');

use Log;
use StatesHelper;

class LZRefillFactory extends RefillBase
{
    private static $stInstance = null;

    public static function instance()
    {
        if (self::$stInstance == null) {
            self::$stInstance = new LZRefillFactory();
        }

        if(defined('SUPPORT_PTHREAD') && SUPPORT_PTHREAD === true)
        {
            Log::record("SUPPORT_PTHREAD defined call load",Log::DEBUG);
            if(StatesHelper::fetch_state('channel')) {
                Log::record("RefillFactory reload channel config.",Log::DEBUG);
                self::$stInstance->load();
            }
        }

        return self::$stInstance;
    }

    private function __construct()
    {
        parent::__construct();
        $this->mPolicy = new policy();

        if (defined('SUPPORT_PTHREAD') && SUPPORT_PTHREAD === true) {
            Log::record("SUPPORT_PTHREAD defined dont call load",Log::DEBUG);
        } else {
            Log::record("SUPPORT_PTHREAD has not defined and call load",Log::DEBUG);
            $this->load();
        }
    }
}