125 lines
3.5 KiB
PHP
125 lines
3.5 KiB
PHP
<?php
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/**
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* Class: QmLoader
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* 自动加载器
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* 覆盖系统autoload函数
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* 会根据传入的扫描目录，自动include类
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* 注意：1.类名必须和文件名保持一致。（后缀名除外）
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* 2.部分系统需拥有读、写权限
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*/
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class QmLoader {
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//需自动加载的目录
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public $autoload_path = array();
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//目录存储功能（默认开启）
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public $open_local_storage = true;
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//本地存储类
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protected $file_map;
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//存储类
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protected $file_store;
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public function init(){
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if(!is_object($this->file_map)){
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$this->file_map = new FileMap();
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}
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if(!is_object($this->file_store)){
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$this->file_store = new FileStore();
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}
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spl_autoload_register(array($this, "loadFile"));
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}
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public function autoload(){
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$autoload_path = $this->cleanPath($this->autoload_path);
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foreach($autoload_path as $index=>$path) {
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if (!is_readable($path)) {
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unset($autoload_path[$index]);
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}
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}
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//保存到本地
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if($this->open_local_storage){
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if( !$this->file_map->hasMap()){
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$this->scanDirs($autoload_path);
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$store = json_encode($this->file_store->getAll());
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//保存为json
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$this->file_map->saveMap($store);
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}else if($obdt = $this->file_map->loadMap()){
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$file_map = json_decode($obdt);
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foreach($file_map as $crypt => $items){
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foreach($items->name as $name){
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$this->addFileStore($items->dir."/".$name.".php");
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}
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}
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}else{
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trigger_error("Error:map.json file has no content ",E_USER_ERROR);
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}
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}else{
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$this->scanDirs($autoload_path);
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}
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}
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protected function scanDirs($dirs){
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$i = 0;
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while(isset($dirs[$i])){
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$dir = $dirs[$i];
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$files = scandir($dir);
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foreach ($files as $file) {
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if (in_array($file, array(".", "..")))
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{
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continue;
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}
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$currentFile = $dir . "/" . $file;
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if (is_php($file) && is_file($currentFile))
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{
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$this->addFileStore($currentFile);
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}
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else if (is_dir($currentFile))
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{
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$dirs[] = $currentFile;
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}
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}
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$i++;
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}
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}
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protected function getClassName($path){
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if(preg_match("/\\/([^\\/]+?)\\.(?:php)$/",$path, $matches)){
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return $matches[1];
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}
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return false;
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}
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protected function cleanPath($path){
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$res = array();
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if(!is_array($path)){
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$path = array($path);
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}
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foreach($path as $no => $file_path){
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$file_path = str_replace("\\","/",trim($file_path));
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$res[] = $file_path;
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}
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return $res;
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}
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protected function addFileStore($file){
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$className = $this->getClassName($file);
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if(!$this->file_store->get($className)){
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$this->file_store->add($className,$file);
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}else{
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$this->file_store->update($className,$file);
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}
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}
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protected function loadFile($class){
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if($file_path = $this->file_store->get($class)){
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include($file_path);
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}
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}
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} |