60 lines
1.5 KiB
PHP
60 lines
1.5 KiB
PHP
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<?php
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namespace Stripe\Service;
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/**
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* Abstract base class for all service factories used to expose service
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* instances through {@link \Stripe\StripeClient}.
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*
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* Service factories serve two purposes:
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*
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* 1. Expose properties for all services through the `__get()` magic method.
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* 2. Lazily initialize each service instance the first time the property for
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* a given service is used.
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*/
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abstract class AbstractServiceFactory
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{
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/** @var \Stripe\StripeClientInterface */
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private $client;
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/** @var array<string, AbstractService|AbstractServiceFactory> */
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private $services;
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/**
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* @param \Stripe\StripeClientInterface $client
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*/
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public function __construct($client)
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{
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$this->client = $client;
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$this->services = [];
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}
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/**
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* @param string $name
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*
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* @return null|string
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*/
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abstract protected function getServiceClass($name);
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/**
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* @param string $name
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*
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* @return null|AbstractService|AbstractServiceFactory
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*/
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public function __get($name)
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{
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$serviceClass = $this->getServiceClass($name);
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if (null !== $serviceClass) {
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if (!\array_key_exists($name, $this->services)) {
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$this->services[$name] = new $serviceClass($this->client);
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}
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return $this->services[$name];
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}
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\trigger_error('Undefined property: ' . static::class . '::$' . $name);
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return null;
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}
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}
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