Reading annotations with Symfony4 - php

Question

I'm trying to read annotations with Symfony4 but looks like something is not working!
The class I'm trying to read from:
<?php
namespace App\Entity;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
/**
* #ORM\Entity(repositoryClass="App\Repository\OAuthClientRepository")
*/
class OAuthClient {
{
/**
* #Assert\NotBlank()
* #ORM\Column(type="string")
*/
protected $name;
}
The code I'm using to read the annotations:
<?php
namespace App\Test;
use Doctrine\Common\Annotations\SimpleAnnotationReader as DocReader;
/**
* Helper AnnotationReader
*/
class AnnotationReader
{
/**
* #param $class
* #return null|\StdClass
*/
public static function getClass($class)
{
$reader = new DocReader;
$reflector = new \ReflectionClass($class);
return $reader->getClassAnnotations($reflector);
}
/**
* #param $class
* #param $property
* #return array
*/
public static function getProperty($class, $property)
{
$reader = new DocReader;
$reflector = new \ReflectionProperty($class, $property);
return $reader->getPropertyAnnotations($reflector);
}
/**
* #param $class
* #param $method
* #return array
*/
public static function getMethod($class, $method)
{
$reader = new DocReader;
$reflector = new \ReflectionMethod($class, $method);
return $reader->getMethodAnnotations($reflector);
}
}
I get empty arrays when I call:
App\Test\AnnotationReader::getClass(App\Entity\OAuthClient::class);
App\Test\AnnotationReader::getProperty(App\Entity\OAuthClient::class, 'name');
What am I doing wrong?
What is the best way to read annotation?
I'm looking to read the validations used on a class property.
Thank you for your help!

Answer 1

change
use Doctrine\Common\Annotations\SimpleAnnotationReader as DocReader;
to
use Doctrine\Common\Annotations\AnnotationReader as DocReader;
and it works.

Answer 2

You may have to call the addNamespace() method on the SimpleAnnotationReader instance.
For instance, for ORM annotations:
$reader->addNamespace('Doctrine\ORM\Mapping');
And for validation annotations:
$reader->addNamespace('Symfony\Component\Validator\Constraints');
See:
SimpleAnnotationReader API: https://www.doctrine-project.org/api/annotations/latest/Doctrine/Annotations/SimpleAnnotationReader.html
SimpleAnnotationReader examples: https://github.com/doctrine/doctrine2/blob/462173ad71ae63cd9877e1e642f7968ed1f9971b/lib/Doctrine/ORM/Configuration.php#L140-L141