NullIdentification.php

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<?php
 
declare(strict_types=1);
 
namespace ILIAS\GlobalScreen\Identification;
 
class NullIdentification implements IdentificationInterface
{
    public function __construct(protected ?IdentificationInterface $wrapped_identification = null)
    {
    }
 
    public function serialize()
    {
        if ($this->wrapped_identification !== null) {
            return $this->wrapped_identification->serialize();
        }
 
        return "";
    }
 
    public function unserialize($serialized): void
    {
        // noting to do
    }
 
    public function getClassName(): string
    {
        if ($this->wrapped_identification !== null) {
            return $this->wrapped_identification->getClassName();
        }
 
        return "Null";
    }
 
    public function getInternalIdentifier(): string
    {
        if ($this->wrapped_identification !== null) {
            return $this->wrapped_identification->getInternalIdentifier();
        }
 
        return "Null";
    }
 
    public function getProviderNameForPresentation(): string
    {
        if ($this->wrapped_identification !== null) {
            return $this->wrapped_identification->getProviderNameForPresentation();
        }
 
        return "Null";
    }
 
    public function __serialize(): array
    {
        return ['data' => $this->serialize()];
    }
 
    public function __unserialize(array $data): void
    {
        $this->unserialize($data['data']);
    }
}