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<?php |
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declare(strict_types=1); |
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/** |
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* Micro |
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* |
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* @copyright Copryright (c) 2015-2018 gyselroth GmbH (https://gyselroth.com) |
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* @license MIT https://opensource.org/licenses/MIT |
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*/ |
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namespace Micro\Container; |
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class Config |
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{ |
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/** |
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* Config. |
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* |
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* @var iterable |
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*/ |
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protected $config = []; |
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/** |
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* Compiled config. |
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* |
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* @var array |
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*/ |
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protected $compiled = []; |
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/** |
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* Create container. |
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* |
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* @param iterable $config |
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*/ |
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public function __construct(Iterable $config = []) |
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{ |
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$this->config = $config; |
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} |
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/** |
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* Check if service is known to container config. |
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* |
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* @param string $name |
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* |
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* @return bool |
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*/ |
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public function has(string $name): bool |
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{ |
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return isset($this->config[$name]); |
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} |
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/** |
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* Get service configuration. |
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* |
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* @param string $name |
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* |
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* @return array |
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*/ |
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public function get(string $name): array |
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{ |
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if (isset($this->compiled[$name])) { |
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$config = $this->compiled[$name]; |
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} else { |
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$this->compiled[$name] = $this->createServiceConfig($name); |
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$config = $this->compiled[$name]; |
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} |
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if (!isset($config['use'])) { |
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$config['use'] = $name; |
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} |
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return $config; |
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} |
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/** |
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* Parse env param. |
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* |
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* @param string $param |
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* |
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* @return string |
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*/ |
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public function getEnv(string $param): string |
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{ |
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if (preg_match_all('#\{ENV\(([A-Za-z0-9_]+)(?:(,?)([^}]*))\)\}#', $param, $matches)) { |
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if (4 !== count($matches)) { |
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return $param; |
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} |
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for ($i = 0; $i < 1; ++$i) { |
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$param = $this->parseEnv($param, $matches, $i); |
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} |
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return $param; |
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} |
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return $param; |
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} |
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/** |
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* Parse env. |
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* |
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* @param string $param |
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* @param array $variables |
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* @param int $key |
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* |
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* @return string |
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*/ |
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protected function parseEnv(string $param, array $variables, int $key): string |
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{ |
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$env = getenv($variables[1][$key]); |
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if (false === $env && !empty($variables[3][$key])) { |
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return str_replace($variables[0][$key], $variables[3][$key], $param); |
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} |
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if (false === $env) { |
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throw new Exception\EnvVariableNotFound('env variable '.$variables[1][$key].' required but it is neither set not a default value exists'); |
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} |
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return str_replace($variables[0][$key], $env, $param); |
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} |
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/** |
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* Create service config. |
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* |
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* @param string $name |
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* |
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* @return array |
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*/ |
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protected function createServiceConfig(string $name): array |
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{ |
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$config = []; |
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if ($this->has($name)) { |
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$config = $this->config[$name]; |
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} |
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$class = $name; |
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if (isset($config['use'])) { |
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if (!is_string($config['use'])) { |
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throw new Exception\InvalidConfiguration('use must be a string for service '.$name); |
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} |
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$class = $config['use']; |
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} |
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if (preg_match('#^\{(.*)\}$#', $class)) { |
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return $config; |
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} |
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return $this->mergeServiceConfig($name, $class, $config); |
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} |
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/** |
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* Find parent classes or interfaces and merge service configurations. |
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* |
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* @param string $name |
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* @param string $class |
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* @param array $config |
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* |
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* @return array |
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*/ |
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protected function mergeServiceConfig(string $name, string $class, array $config): array |
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{ |
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if (!class_exists($class)) { |
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return $config; |
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} |
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$parents = array_merge(class_implements($class), class_parents($class)); |
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foreach ($parents as $parent) { |
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if (isset($this->config[$parent])) { |
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$config = array_merge($config, $this->config[$parent]); |
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} |
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} |
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if (isset($this->config[$name])) { |
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$config = array_merge($config, $this->config[$name]); |
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} |
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return $config; |
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} |
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} |
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gyselroth /
micro-container
