File Service/Cache/ResolverMapLoader.php | OData API Documentation API

1:	<?php
2:
3:	declare(strict_types=1);
4:
5:	namespace LaravelUi5\OData\Service\Cache;
6:
7:	use LaravelUi5\OData\Service\Contracts\ODataServiceInterface;
8:	use LaravelUi5\OData\Service\Resolver\ResolverMap;
9:	use ReflectionClass;
10:
11:	/**
12:	* Loads a cached ResolverMap from the generated Edm\ directory next to a service class.
13:	*
14:	* Convention: {ServiceClassNamespace}\Edm\ResolverMap with a static load() method.
15:	*/
16:	final class ResolverMapLoader
17:	{
18:	/**
19:	* Attempt to load a cached ResolverMap for the given service.
20:	*
21:	* Returns null when no cache exists.
22:	*/
23:	public static function forService(ODataServiceInterface $service): ?ResolverMap
24:	{
25:	// Check the file exists before class_exists() to avoid autoloader
26:	// errors when the cache directory has been cleared but the in-memory
27:	// classmap still references the deleted files.
28:	$refl = new ReflectionClass($service);
29:	$cacheFile = dirname($refl->getFileName()) . '/Edm/ResolverMap.php';
30:	if (!file_exists($cacheFile)) {
31:	return null;
32:	}
33:
34:	$className = self::resolverMapClassName($service);
35:
36:	if (!class_exists($className)) {
37:	return null;
38:	}
39:
40:	return $className::load();
41:	}
42:
43:	/**
44:	* Derive the FQCN of the cached ResolverMap class from a service instance.
45:	*
46:	* Convention: {ServiceClassNamespace}\Edm\ResolverMap
47:	*/
48:	public static function resolverMapClassName(ODataServiceInterface $service): string
49:	{
50:	$refl = new ReflectionClass($service);
51:	return $refl->getNamespaceName() . '\\Edm\\ResolverMap';
52:	}
53:	}
54:

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