class.ilWebLinkXmlWriter.php

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<?php

declare(strict_types=1);

class ilWebLinkXmlWriter extends ilXmlWriter
{
    private bool $add_header = true;

    private int $obj_id = 0;
    private ?ilObjLinkResource $weblink = null;

    public function __construct(bool $a_add_header)
    {
        $this->add_header = $a_add_header;
        parent::__construct();
    }

    public function setObjId(int $a_obj_id): void
    {
        $this->obj_id = $a_obj_id;
    }

    public function write(): void
    {
        $this->init();
        if ($this->add_header) {
            $this->buildHeader();
        }
        $this->weblink->toXML($this);
    }

    protected function buildHeader(): bool
    {
        $this->xmlSetGenCmt("WebLink Object");
        $this->xmlHeader();
        return true;
    }

    protected function init(): void
    {
        $this->xmlClear();

        if (!$this->obj_id) {
            throw new UnexpectedValueException('No obj_id given: ');
        }
        if (!$this->weblink = ilObjectFactory::getInstanceByObjId(
            $this->obj_id,
            false
        )) {
            throw new UnexpectedValueException(
                'Invalid obj_id given: ' . $this->obj_id
            );
        }
        if ($this->weblink->getType() != 'webr') {
            throw new UnexpectedValueException(
                'Invalid obj_id given. Object is not of type webr'
            );
        }
    }
}