* * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Security\Acl\Domain; use Symfony\Component\Security\Core\Util\ClassUtils; use Symfony\Component\Security\Acl\Exception\InvalidDomainObjectException; use Symfony\Component\Security\Acl\Model\DomainObjectInterface; use Symfony\Component\Security\Acl\Model\ObjectIdentityInterface; /** * ObjectIdentity implementation * * @author Johannes M. Schmitt */ final class ObjectIdentity implements ObjectIdentityInterface { private $identifier; private $type; /** * Constructor. * * @param string $identifier * @param string $type * * @throws \InvalidArgumentException */ public function __construct($identifier, $type) { if (empty($identifier)) { throw new \InvalidArgumentException('$identifier cannot be empty.'); } if (empty($type)) { throw new \InvalidArgumentException('$type cannot be empty.'); } $this->identifier = $identifier; $this->type = $type; } /** * Constructs an ObjectIdentity for the given domain object * * @param object $domainObject * @throws InvalidDomainObjectException * @return ObjectIdentity */ public static function fromDomainObject($domainObject) { if (!is_object($domainObject)) { throw new InvalidDomainObjectException('$domainObject must be an object.'); } try { if ($domainObject instanceof DomainObjectInterface) { return new self($domainObject->getObjectIdentifier(), ClassUtils::getRealClass($domainObject)); } elseif (method_exists($domainObject, 'getId')) { return new self($domainObject->getId(), ClassUtils::getRealClass($domainObject)); } } catch (\InvalidArgumentException $invalid) { throw new InvalidDomainObjectException($invalid->getMessage(), 0, $invalid); } throw new InvalidDomainObjectException('$domainObject must either implement the DomainObjectInterface, or have a method named "getId".'); } /** * {@inheritDoc} */ public function getIdentifier() { return $this->identifier; } /** * {@inheritDoc} */ public function getType() { return $this->type; } /** * {@inheritDoc} */ public function equals(ObjectIdentityInterface $identity) { // comparing the identifier with === might lead to problems, so we // waive this restriction return $this->identifier == $identity->getIdentifier() && $this->type === $identity->getType(); } /** * Returns a textual representation of this object identity * * @return string */ public function __toString() { return sprintf('ObjectIdentity(%s, %s)', $this->identifier, $this->type); } }