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<?php |
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namespace nebula\application\config; |
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use nebula\application\exception\JSONException; |
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use nebula\application\exception\YamlException; |
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/** |
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* 文件配置类 |
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*/ |
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abstract class ConfigLoader |
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{ |
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public function loadConfig(string $path, array $extra =[]):?array |
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{ |
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$data=null; |
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if (!file_exists($path)) { |
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$path =$this->resolve($path); |
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} |
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if ($path) { |
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$ext = strtolower(pathinfo($path, PATHINFO_EXTENSION)); |
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switch ($ext) { |
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case 'yml': case 'yaml': $data = $this->loadYaml($path); break; |
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case 'php': $data = include $path; break; |
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case 'ini': $data = $this->loadIni($path); break; |
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case 'json': default: $data = $this->loadJson($path); |
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} |
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} |
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return $data; |
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} |
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protected function loadJson(string $path):array |
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{ |
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$content = file_get_contents($path); |
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$content =$this->parseValue($content, $extra); |
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$data = json_decode($content, true); |
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if (json_last_error()!==JSON_ERROR_NONE) { |
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throw new JSONException(json_last_error()); |
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} |
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return $data; |
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} |
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protected function loadIni(string $path):array |
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{ |
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$content = file_get_contents($path); |
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$content =$this->parseValue($content, $extra); |
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return \parse_ini_string($content, true); |
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} |
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protected function loadYaml(string $path):array |
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{ |
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if (function_exists('yaml_parse')) { |
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$name = 'yaml_parse'; |
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} elseif (class_exists('Spyc')) { |
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$name = 'Spyc::YAMLLoadString'; |
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} else { |
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throw new YamlException("parse yaml config error : missing yaml extension or spyc", 1); |
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} |
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$content = file_get_contents($path); |
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$content =$this->parseValue($content, $extra); |
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return \call_user_func_array($name, [$content]); |
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} |
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abstract public function parseValue(string $content, array $extra =[]):string; |
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public function resolve(string $path):?string |
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{ |
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if (file_exists($path)) { |
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return $path; |
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} |
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$basepath = pathinfo($path, PATHINFO_FILENAME); |
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if (file_exists($conf = $basepath.'.yml') || file_exists($conf = $basepath.'.yaml')) { |
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if (function_exists('yaml_parse') || class_exists('Spyc')) { |
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return $conf; |
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} |
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} |
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foreach (['.json','.php','.ini'] as $ext) { |
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if (file_exists($conf=$basepath.$ext)) { |
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return $conf; |
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} |
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} |
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return null; |
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} |
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} |
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