NullIdentification.php

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<?php namespace ILIAS\GlobalScreen\Identification;

class NullIdentification implements IdentificationInterface
{

    protected $wrapped_identification = null;


    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)
    {
        return;
    }


    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";
    }
}