NullIdentification.php

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<?php

declare(strict_types=1);

namespace ILIAS\GlobalScreen\Identification;

class NullIdentification implements IdentificationInterface
{
    protected $wrapped_identification;

    public function __construct(IdentificationInterface $wrapped_identification = null)
    {
        $this->wrapped_identification = $wrapped_identification;
    }

    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']);
    }
}