dotkernel / dot-annotated-services
DotKernel service creation component through laminas-servicemanager and annotations
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Requires
- php: ~7.4.0 || ~8.0.0 || ~8.1.0
- doctrine/annotations: ^1.13
- doctrine/cache: ^2.1
- laminas/laminas-dependency-plugin: ^2.2
- laminas/laminas-servicemanager: ^3.10
Requires (Dev)
- phpunit/phpunit: ^9.5
- squizlabs/php_codesniffer: ^3.6
Suggests
- doctrine/cache: To cache the result of processing the annotations and speed-up your application
README
DotKernel component used to create services through Laminas Service Manager and inject them with dependencies just using method annotations. It can also create services without the need to write factories. Annotation parsing can be cached, to improve performance.
This package can clean up your code, by getting rid of all the factories you write, sometimes just to inject a dependency or two.
Installation
Run the following command in your project directory
$ composer require dotkernel/dot-annotated-services
After installing, add the ConfigProvider
class to your configuration aggregate.
Usage
Using the AnnotatedServiceFactory
You can register services in the service manager using the AnnotatedServiceFactory
as below
return [ 'factories' => [ ServiceClass::class => AnnotatedServiceFactory::class, ], ];
Please note, you can use only the fully qualified class name as the service key
The next step is to annotate the service constructor or setters with the service names to inject
use Dot\AnnotatedServices\Annotation\Service; use Dot\AnnotatedServices\Annotation\Inject; /** * Service constructor * @param Dependency1 $dep1 * ... * * @Inject({Dependency1::class, Dependency2::class, ...}) */ public function __construct(Dependency1 $dep1, Dependency2 $dep2, ...) { $this->dep1 = $dep1; //... }
The annotation @Inject
is telling the factory to inject the services between curly braces.
Valid service names should be provided, as registerd in the service manager.
To inject an array value from the service manager, you can use dot notation as below
/** * @Inject({"config.debug"}) */
which will inject $container->get('config')['debug'];
Even if using dot notation, the annotated factory will check first if a service name exists with that name
You can use the inject annotation on setters too, they will be called at creation time and injected with the configured dependencies.
Using the abstract factory
Using this approach, no service manager configuration is required. It uses the registered abstract factory to create annotated services.
In order to tell the abstract factory which services are to be created, you need to annotate the service class with the @Service
annotation.
use Dot\AnnotatedServices\Annotation\Service; use Dot\AnnotatedServices\Annotation\Inject; /* * @Service */ class ServiceClass { // configure injections as described in the previous section }
And that's it, you don't need to configure the service manager with this class, creation will happen automatically.
Cache annotations
This package is built on top of doctrine/annotation
and doctrine/cache
.
In order to cache annotations, you should register a service factory at key AbstractAnnotatedFactory::CACHE_SERVICE
that should return a valid Doctrine\Common\Cache\Cache
cache driver. See Cache Drivers for available implementations offered by doctrine.
Below, we give an example, as defined in our frontend and admin starter applications
return [ 'annotations_cache_dir' => __DIR__ . '/../../data/cache/annotations', 'dependencies' => [ 'factories' => [ // used by dot-annotated-services to cache annotations // needs to return a cache instance from Doctrine\Common\Cache AbstractAnnotatedFactory::CACHE_SERVICE => AnnotationsCacheFactory::class, ] ], ];
namespace Frontend\App\Factory; use Doctrine\Common\Cache\FilesystemCache; use Psr\Container\ContainerInterface; class AnnotationsCacheFactory { public function __invoke(ContainerInterface $container) { //change this to suite your caching needs return new FilesystemCache($container->get('config')['annotations_cache_dir']); } }