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<?php declare(strict_types = 0);
/*
** Copyright (C) 2001-2025 Zabbix SIA
**
** This program is free software: you can redistribute it and/or modify it under the terms of
** the GNU Affero General Public License as published by the Free Software Foundation, version 3.
**
** This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
** without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
** See the GNU Affero General Public License for more details.
**
** You should have received a copy of the GNU Affero General Public License along with this program.
** If not, see <https://www.gnu.org/licenses/>.
**/
final class CComponentRegistry {
private $components = [];
/**
* Return registered component class instance.
*
* @param string $name Component name.
*
* @return object
*
* @throws Exception when component with $name is not found.
*/
final public function get(string $name): object {
if (!$this->has($name)) {
throw new Exception(_s('Component %1$s is not registered.', $name));
}
return $this->components[$name];
}
/**
* Register component.
*
* @param string $name Component name.
* @param object $instance Component class instance.
*
* @throws Exception when name is already registered.
*/
final public function register(string $name, object $instance): void {
if ($this->has($name)) {
throw new Exception(_s('Component %1$s already registered.', $name));
}
$this->components[$name] = $instance;
}
/**
* Check if a component has been registered.
*
* @param string $name Component name.
*
* @return bool
*/
final public function has(string $name): bool {
return array_key_exists($name, $this->components);
}
/**
* Magic method to allow short syntax for the component instance get.
*
* @param string $name Component name.
*
* @return object
*
* @throws Exception when component with $name is not found.
*/
final public function __get(string $name): object {
return $this->get($name);
}
/**
* Magic method to allow short syntax for the component registration.
*
* @param string $name Requested property name.
* @param object $instance Component class instance.
*
* @throws Exception when name is already registered.
*/
final public function __set(string $name, object $instance): void {
$this->register($name, $instance);
}
}
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