mirror of
https://gitee.com/fastadminnet/framework.git
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235 lines
8.4 KiB
PHP
235 lines
8.4 KiB
PHP
<?php
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// +----------------------------------------------------------------------
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// | TOPThink [ WE CAN DO IT JUST THINK ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2011 http://topthink.com All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
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// +----------------------------------------------------------------------
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// | Author: liu21st <liu21st@gmail.com>
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// +----------------------------------------------------------------------
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namespace Think;
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use Think\Config;
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class Loader {
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// 类名映射
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static protected $map = [];
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// 命名空间
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static protected $namespace = [];
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// 自动加载
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static public function autoload($class){
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// 检查是否定义classmap
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if(isset(self::$map[$class])) {
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include self::$map[$class];
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}else{ // 命名空间自动加载
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$name = strstr($class, '\\', true);
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if(isset(self::$namespace[$name])){ // 注册的命名空间
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$path = dirname(self::$namespace[$name]) . '/';
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}elseif(is_dir(LIB_PATH.$name)){ // Library目录下面的命名空间自动定位
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$path = LIB_PATH;
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}else{ // 项目命名空间
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$path = APP_PATH;
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}
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$filename = $path . str_replace('\\', '/', str_replace('\\_','\\',strtolower(trim(preg_replace("/[A-Z]/", "_\\0", $class), "_")))) . EXT;
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if(is_file($filename)) {
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include $filename;
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}
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}
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}
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// 注册classmap
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static public function addMap($class, $map=''){
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if(is_array($class)){
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self::$map = array_merge(self::$map, $class);
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}else{
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self::$map[$class] = $map;
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}
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}
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// 注册命名空间
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static public function addNamespace($namespace, $path){
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self::$namespace[$namespace] = $path;
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}
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// 注册自动加载机制
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static public function register($autoload = ''){
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spl_autoload_register($autoload ? $autoload : ['think\loader', 'autoload']);
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}
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/**
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* 导入所需的类库 同java的Import 本函数有缓存功能
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* @param string $class 类库命名空间字符串
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* @param string $baseUrl 起始路径
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* @param string $ext 导入的文件扩展名
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* @return boolean
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*/
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static public function import($class, $baseUrl = '', $ext= EXT ) {
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static $_file = [];
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$class = str_replace(['.', '#'], ['/', '.'], $class);
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if (isset($_file[$class . $baseUrl]))
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return true;
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else
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$_file[$class . $baseUrl] = true;
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$class_strut = explode('/', $class);
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if (empty($baseUrl)) {
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if ('@' == $class_strut[0] || MODULE_NAME == $class_strut[0]) {
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//加载当前项目应用类库
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$class = substr_replace($class, '', 0, strlen($class_strut[0]) + 1);
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$baseUrl = MODULE_PATH;
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}elseif (in_array($class_strut[0], ['think','org', 'com'])) {
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// org 第三方公共类库 com 企业公共类库
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$baseUrl = LIB_PATH;
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}elseif(in_array($class_strut[0], ['vendor', 'traits'])){
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$baseUrl = THINK_PATH;
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}else { // 加载其他项目应用类库
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$class = substr_replace($class, '', 0, strlen($class_strut[0]) + 1);
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$baseUrl = APP_PATH . $class_strut[0] . '/';
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}
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}
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if (substr($baseUrl, -1) != '/')
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$baseUrl .= '/';
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// 如果类存在 则导入类库文件
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$filename = $baseUrl . $class . $ext;
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if(is_file($filename)) {
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include $filename;
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return true;
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}
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return false;
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}
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/**
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* 实例化一个没有模型文件的Model（对应数据表）
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* @param string $name Model名称 支持指定基础模型 例如 MongoModel:User
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* @param array $options 模型参数
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* @return Model
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*/
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static public function table($name = '', $options=[]) {
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static $_model = [];
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if(strpos($name, ':')) {
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list($class, $name) = explode(':', $name);
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}else{
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$class = 'think\model';
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}
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$guid = $name . '_' . $class;
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if (!isset($_model[$guid]))
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$_model[$guid] = new $class($name, $options);
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return $_model[$guid];
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}
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/**
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* 实例化（分层）模型
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* @param string $name Model名称
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* @param string $layer 业务层名称
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* @return Object
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*/
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static public function model($name = '', $layer = MODEL_LAYER) {
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if(empty($name)) {
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return new Model;
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}
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static $_model = [];
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if(isset($_model[$name . $layer])) {
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return $_model[$name . $layer];
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}
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if(strpos($name, '/')) {
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list($module, $name) = explode('/', $name);
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}else{
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$module = MODULE_NAME;
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}
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$class = $module . '\\' . $layer . '\\' . parse_name($name, 1);
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if(class_exists($class)) {
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$model = new $class($name);
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}else {
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Log::record('实例化不存在的类：' . $class, 'NOTIC');
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$model = new Model($name);
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}
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$_model[$name . $layer] = $model;
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return $model;
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}
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/**
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* 实例化（分层）控制器 格式：[模块名/]控制器名
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* @param string $name 资源地址
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* @param string $layer 控制层名称
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* @return Object|false
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*/
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static public function controller($name, $layer = CONTROLLER_LAYER) {
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static $_instance = [];
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if(isset($_instance[$name.$layer])) {
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return $_instance[$name . $layer];
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}
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if(strpos($name, '/')) {
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list($module,$name) = explode('/', $name);
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}else{
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$module = MODULE_NAME;
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}
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$class = $module . '\\' . $layer . '\\' . parse_name($name, 1) ;
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if(class_exists($class)) {
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$action = new $class;
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$_instance[$name . $layer] = $action;
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return $action;
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}elseif(class_exists($module . '\\' . $layer . '\\Empty')){
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$class = $module . '\\' . $layer . '\\Empty';
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return new $class;
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}else{
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return false;
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}
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}
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/**
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* 实例化数据库
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* @param mixed $config 数据库配置
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* @param boolean $lite 是否采用lite方式连接
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* @return object
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*/
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static public function db($config, $lite = false) {
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return Db::instance($config, $lite);
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}
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/**
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* 远程调用模块的操作方法 参数格式 [模块/控制器/]操作
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* @param string $url 调用地址
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* @param string|array $vars 调用参数 支持字符串和数组
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* @param string $layer 要调用的控制层名称
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* @return mixed
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*/
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static public function action($url, $vars = [], $layer = CONTROLLER_LAYER) {
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$info = pathinfo($url);
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$action = $info['basename'];
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$module = '.' != $info['dirname'] ? $info['dirname'] : CONTROLLER_NAME;
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$class = self::controller($module, $layer);
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if($class){
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if(is_string($vars)) {
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parse_str($vars, $vars);
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}
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return call_user_func_array([&$class, $action . Config::get('action_suffix')], $vars);
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}else{
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return false;
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}
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}
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/**
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* 取得对象实例 支持调用类的静态方法
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* @param string $class 对象类名
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* @param string $method 类的静态方法名
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* @return object
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*/
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static public function instance($class, $method = '') {
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static $_instance = [];
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$identify = $class . $method;
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if(!isset($_instance[$identify])) {
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if(class_exists($class)){
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$o = new $class();
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if(!empty($method) && method_exists($o, $method))
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$_instance[$identify] = call_user_func_array([&$o, $method]);
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else
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$_instance[$identify] = $o;
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}
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else
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throw new Exception('_CLASS_NOT_EXIST_:' . $class);
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}
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return $_instance[$identify];
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}
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}
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