PHP 这是我的MVC框架ActionController的封装

这是我的MVC框架ActionController的封装

[PHP]代码

<?php

/*
 * MST_Library v3.1
 * @autohr Janpoem
 */

if (!defined('IN_MST_CORE'))
    exit('MST_ActionController Can\'t be include single!');

if (!defined(MST_Core::LITE_MODE)) {
    MST_Core::import(array(
        'MST/ActionController/Request',
        'MST/ActionController/Router',
    ), MST_Core::P_LIB);
}

abstract class MST_ActionController {

    const
        NO_RENDER           = false,
        IS_RENDER           = 'CONTROLLER_IS_RENDER',
        PF_CONTROLLER       = 'Controller',
        PF_ACTION           = 'Action',
        FILE                = 'file',
        VIEW                = 'view',
        TEXT                = 'text',
        ACTION              = 'action',
        WIDGET              = 'widget',
        CUSTOM_VIEW         = 'custom_view';

    private static
        $_request = null,
        $_instance = null,
        $_currentView = null;

    # @todo 此处的处理应该放到controller被实例化以后, dispatch应该有一个具体含义
    final static public function dispatch(array $config = null, $beforeDispatch = null) {
        if (self::$_instance == null) {
            $request = new MST_ActionController_Request($config['request']);
            $router = new MST_ActionController_Router($config['routes']);
            $router->routing($request);
            $controller = $request['controller'];
            $controller = MST_String::camelize2($controller) . static::PF_CONTROLLER;
            if ($request['module'] != null) {
                $module = $request['module'];
                if (strpos($module, '/') !== false)
                    $module = str_replace('/', '_', $module);
                $controller = $module . '_' . $controller;
            }
            if (is_callable($beforeDispatch)) {
                call_user_func_array($beforeDispatch, array($request, & $controller));
            }
            $GLOBALS['DATA_CACHE']['request'] = & $request;
            if (!class_exists($controller))
                MST_Core::error(202, $controller);
            else
                self::$_instance = new $controller();
        }
    }

    public
        $layout = false,
        $format = 'html',
        $params = null,
        $autoLoadHelper = false;

    protected
        $comet = 0,
        $viewPath = null,
        $defaultRender = self::VIEW;

    abstract public function application();

    private function __construct()
    {
        if ($this->comet <= 0)
            ob_start();
        $this->params = & $GLOBALS['DATA_CACHE']['request'];
        $this->viewPath = trim(
            $this->params['module'] . '/' . $this->params['controller'], '/');
        if ($this->application() !== self::NO_RENDER)
            $this->action($this->params['action']);
    }

    public function __destruct() {
        if (!defined(self::IS_RENDER) && self::$_currentView != null) {
            switch ($this->defaultRender) {
                case self::VIEW :
                case self::TEXT :
                case self::ACTION :
                case self::WIDGET :
                    #$this->defaultRender = $mode;
                    break;
                default :
                    $this->defaultRender = self::VIEW;
            }
            $this->render(
                $this->defaultRender,
                self::$_currentView
            );
        }
        if (self::$_instance != null)
            self::$_instance = null;
        if (self::$_request != null)
            self::$_request = null;
    }

    protected function action($action) {
        $name = MST_String::camelize($action);
        $actName = $name . self::PF_ACTION;
        if (!method_exists($this, $actName))
            MST_Core::error(203, $actName);
        $actRef = new ReflectionMethod($this, $actName);
        if ($actRef->isPrivate() || $actRef->isProtected()
         && !constant(MST_ActionController_Router::IS_MAP))
            MST_Core::error(203, $actName);
        if ($this->$actName() !== self::NO_RENDER && self::$_currentView == null)
            self::$_currentView = $action;
        return $this;
    }

    /**
     * 输出，url跳转
     */
    protected function redirect($url) {
        if (defined(self::IS_RENDER)) return self::NO_RENDER;
        define(self::IS_RENDER, true);
        header('Location:'.linkUri($url));
        return $this;
    }

    // render XML
    // render JAVASCRIPT
    protected function render(
        $mode = null,
        $content = null,
        array $options = null)
    {
        if (defined(self::IS_RENDER)) return self::NO_RENDER;
        define(self::IS_RENDER, true);
        if ($mode == null) $mode = $this->defaultRender;
        if ($mode == self::VIEW)
            $content = $this->viewPath . '/' . $content;
        MST_ActionView::instance()
            ->assign($this)
            ->setOptions($options)
            ->render($mode, $content);
        return $this;
    }

    protected function customRender($file, $path, array $options = null) {
        return $this->render(self::CUSTOM_VIEW, array($file, $path), $options);
    }

    protected function setView($val) {
        self::$_currentView = $val;
    }

    protected function setViewOption($key, $val) {
        MST_ActionView::instance()->setOption($key, $val);
        return $this;
    }

    protected function getViewOption($key) {
        return MST_ActionView::instance()->getOption($key);
    }

    protected function setViewOptions(array $options) {
        MST_ActionView::instance()->setOptions($options);
        return $this;
    }

    protected function getViewOptions() {
        return MST_ActionView::instance()->getOptions();
    }

    protected function doComet(Closure $fn) {
        $times = 0;
        set_time_limit(0);
        while(true) {
            ob_flush();
            flush();
            $times++;
            $result = call_user_func($fn, $times, $this);
            if ($result === false) {
                break;
            }
            usleep(10000);
            sleep($this->comet);
        }
    }
}