dubbo-php-framework的TcpServer解析（三）

经过前面两篇文章的分析，我们分析到了Provider启动时初始化Consumser的地方，也就是initConsumer过程，我们继续分析。

public function initConsumer()
{
	//初始consumer，其中app_name表示Provider应用名称信息，而app_src表示应用所在的Bootstrap文件路径信息的上级目录，也就是用demo为列则是dubbo-php-framework-master/demo/demo-provider目录
	$app_setting = array('app_name' => $this->processName, 'app_src' => dirname($this->requireFile));
      //调用FSOFConsumer的init接口
	FSOFConsumer::init($app_setting);
}

namespace com\fenqile\fsof\consumer;

use com\fenqile\fsof\consumer\proxy\ProxyFactory;


class FSOFConsumer
{
    /**
     * @var  boolean  Has [FSOFConsumer::init] been called?
     */
    protected static $_init = FALSE;//标记FSOFConsumer是否已经初始化

    protected static $_initSetting;//调用时上面调用时传入的信息，也即app_name和app_src信息
    
    public static function init(array $settings = NULL)
    {

        if (self::isConsumerInit())//判断是否已经初始化
        {
            // Do not allow execution twice
            return;
        }

        \Logger::getLogger(__CLASS__)->info("consumer cfg:".json_encode($settings, true));

        $consumerRoot = __DIR__;//当前目录，也就是dubbo-php-framework-master/consumer
		$fsofBootPath = dirname($consumerRoot);//当前目录的上级目录，也就是dubbo-php-framework-master目录

        //加载commom，fsofCommonPath的路径为dubbo-php-framework-master/common
        $fsofCommonPath = $fsofBootPath.DIRECTORY_SEPARATOR.'common';
        require_once($fsofCommonPath.DIRECTORY_SEPARATOR.'BootStrap.php');//加载common目录下的BootStrap文件，而common下的BootStrap.php文件会加载common下所有相关文件，这里后续再分析。

        //加载registry，fsofRegistryPaht的路径为dubbo-php-framework-master/registray
        $fsofRegistryPath = $fsofBootPath.DIRECTORY_SEPARATOR.'registry';
        require_once($fsofRegistryPath.DIRECTORY_SEPARATOR.'BootStrap.php');//加载registray目录下的BootStrap文件，这个BootStrap文件会加载registry下的所有相关文件，这里后续再分析。

        //检查输入参数app_src和app_name
        if ((!isset($settings['app_src'])) || (!isset($settings['app_name'])))
		{
            throw new \Exception("FSOFConsumer::init传入的app的src路径参数不准确");
        }  
        
        //获取消费端consumer配置文件
        $consumerConfigFile = $settings['app_src'];
        $consumerConfigFile = rtrim($consumerConfigFile, DIRECTORY_SEPARATOR);//从最右边的开始的/删除路径信息，这里操作完后的路径为dubbo-php-framework-master/demo
        $consumerConfigFile = $consumerConfigFile.DIRECTORY_SEPARATOR.'consumer'.DIRECTORY_SEPARATOR.$settings['app_name'].'.consumer';//拼接consumer文件路径，不过这里的和开源处理的项目目录对比，拼接是错误的，还少一级目录,以demo应用为列,consumer文件的路径为dubbo-php-framework-master/demo/demo-consumer/consumer/demo-consumer.consumer
        if (file_exists($consumerConfigFile))//判断文件路径是否存在
        {
        	try 
        	{
                $consumerConfig = parse_ini_file($consumerConfigFile, true);//解析文件路径    
            } 
            catch (\Exception $e) 
            {
                throw new \Exception("consumer配置文件有误[".$consumerConfigFile."]");
            }
        }
		else
		{
			$consumerConfig = array();
		}

		self::$_initSetting = $settings;

        //注册consumer框架的autoLoader
        self::registerConsumerFrameAutoLoader($consumerRoot);

        //注册consumer的动态代理工厂
        ProxyFactory::setConsumerConfig($consumerConfig, $consumerConfigFile, $settings);

        //FSOFConsumer is now initialized
		self::$_init = TRUE;
    }

    private static function registerConsumerFrameAutoLoader($consumerRoot)
    {
        if (!self::isConsumerInit())
        {
            //注册框架顶层命名空间到自动加载器
            require_once $consumerRoot.DIRECTORY_SEPARATOR.'FrameAutoLoader.php';
            FrameAutoLoader::setRootNS('com\fenqile\fsof\consumer', $consumerRoot);
            FrameAutoLoader::setRootNS('com\fenqile\fsof\consumer\app', $consumerRoot.DIRECTORY_SEPARATOR.'app');
            FrameAutoLoader::setRootNS('com\fenqile\fsof\consumer\fsof', $consumerRoot.DIRECTORY_SEPARATOR.'fsof');
            FrameAutoLoader::setRootNS('com\fenqile\fsof\consumer\proxy', $consumerRoot.DIRECTORY_SEPARATOR.'proxy');
            FrameAutoLoader::setRootNS('com\fenqile\fsof\consumer\client', $consumerRoot.DIRECTORY_SEPARATOR.'client');
            //利用PHP自带的spl_autoload_register注册PHP文件自动加载
            spl_autoload_register(__NAMESPACE__.'\FrameAutoLoader::autoload');
        }
    }

    public static function getInitSetting()
    {
        return  self::$_initSetting;
    }
    
    public static function isConsumerInit()
    {
        return  self::$_init;
    }

}

class FrameAutoLoader
{
    /**
     * 命名空间的路径
     */
    private static $nsPath = Array();

    /**
     * 自动载入类
     * @param $class
     */
    public static function autoload($class)
    {
    	$frameRootPathDepth = count(explode('\\', __NAMESPACE__));
        $root = explode('\\', trim($class, '\\'));
        $pathDepth = count($root);
        if($pathDepth > $frameRootPathDepth)
        {
        	$key = $className = $class;
	        if($pathDepth > $frameRootPathDepth + 1)
	        {
	        	$root = explode('\\', trim($class, '\\'), $frameRootPathDepth + 2);
	        	$className = $root[$frameRootPathDepth + 1];
	        	unset($root[$frameRootPathDepth + 1]);
	        	$key = implode($root, '\\');
	        }
	        else if($pathDepth == $frameRootPathDepth + 1)
	        {
	        	$root = explode('\\', trim($class, '\\'), $frameRootPathDepth + 1);
	        	$className = $root[$frameRootPathDepth];
	        	unset($root[$frameRootPathDepth]);
	        	$key = implode($root, '\\');
	        }
	        
        	if(isset(self::$nsPath[$key]))
	        {
	        	include_once self::$nsPath[$key] . DIRECTORY_SEPARATOR . str_replace('\\', DIRECTORY_SEPARATOR, $className) . '.php';
	        }
        }
    }

    /**
     * 设置根命名空间
     * @param $root
     * @param $path
     */
    public static function setRootNS($root, $path)
    {
        self::$nsPath[$root] = $path;
    }
}

dubbo-php-framework的TcpServer解析（三）

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