118 lines
2.8 KiB
PHP
118 lines
2.8 KiB
PHP
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<?php
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namespace core\loader;
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use Exception;
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use think\DbManager;
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use think\Facade;
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use think\helper\Str;
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abstract class Loader extends Facade
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{
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protected $config_name = null;//配置文件名
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protected $name = null;
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protected $namespace = null;
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protected $class = null;
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protected $config = null;
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protected $config_file = null;
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/**
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* @param string $name
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* @param array $config
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*/
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public function __construct($name = '', array $config = [])
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{
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if (is_array($name)) {
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$config = $name;
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$name = null;
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}
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if ($name) {
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$this->name = $name;
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}
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$this->config = $config;
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}
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/**
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* 获取默认驱动
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* @return mixed
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*/
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abstract protected function getDefault();
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/**
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* 创建实例对象
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* @param string $type
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* @return object|DbManager
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* @throws Exception
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*/
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public function create(string $type)
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{
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$class = $this->getClass($type);
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return self::createFacade($class, [
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$this->name,
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$this->config,
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$this->config_file
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], true);
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}
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/**
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* 获取类
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* @param string $type
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* @return mixed|string
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* @throws Exception
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*/
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public function getClass(string $type)
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{
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$class = config($this->config_name . '.drivers.' . $type . '.driver');
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if (!empty($class) && class_exists($class)) {
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return $class;
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} else {
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if ($this->namespace || str_contains($type, '\\')) {
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$class = str_contains($type, '\\') ? $type : $this->namespace . $type;
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if (class_exists($class)) {
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return $class;
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} else {
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$class = str_contains($type, '\\') ? $type : $this->namespace . Str::studly($type);
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if (class_exists($class)) {
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return $class;
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}
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}
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}
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}
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throw new Exception("Driver [$type] not supported.");
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}
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/**
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* 通过装载器获取实例
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* @return object|DbManager
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* @throws Exception
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*/
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public function getLoader()
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{
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if (empty($this->class)) {
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$this->name = $this->name ?: $this->getDefault();
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if (!$this->name) {
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throw new Exception(sprintf(
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'could not find driver [%s].', static::class
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));
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}
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$this->class = $this->create($this->name);
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}
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return $this->class;
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}
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/**
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* 动态调用
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* @param $method
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* @param $arguments
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* @return mixed
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* @throws Exception
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*/
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public function __call($method, $arguments)
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{
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return $this->getLoader()->{$method}(...$arguments);
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}
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}
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