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95 lines
2.5 KiB
95 lines
2.5 KiB
<?php declare(strict_types = 0);
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/*
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** Zabbix
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** Copyright (C) 2001-2023 Zabbix SIA
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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**/
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final class CComponentRegistry {
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private $components = [];
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/**
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* Return registered component class instance.
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*
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* @param string $name Component name.
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*
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* @return object
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*
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* @throws Exception when component with $name is not found.
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*/
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final public function get(string $name): object {
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if (!$this->has($name)) {
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throw new Exception(_s('Component %1$s is not registered.', $name));
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}
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return $this->components[$name];
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}
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/**
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* Register component.
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*
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* @param string $name Component name.
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* @param object $instance Component class instance.
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*
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* @throws Exception when name is already registered.
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*/
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final public function register(string $name, object $instance): void {
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if ($this->has($name)) {
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throw new Exception(_s('Component %1$s already registered.', $name));
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}
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$this->components[$name] = $instance;
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}
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/**
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* Check if a component has been registered.
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*
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* @param string $name Component name.
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*
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* @return bool
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*/
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final public function has(string $name): bool {
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return array_key_exists($name, $this->components);
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}
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/**
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* Magic method to allow short syntax for the component instance get.
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*
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* @param string $name Component name.
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*
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* @return object
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*
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* @throws Exception when component with $name is not found.
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*/
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final public function __get(string $name): object {
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return $this->get($name);
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}
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/**
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* Magic method to allow short syntax for the component registration.
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*
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* @param string $name Requested property name.
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* @param object $instance Component class instance.
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*
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* @throws Exception when name is already registered.
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*/
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final public function __set(string $name, object $instance): void {
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$this->register($name, $instance);
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}
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}
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