Current File : /home/tjamichg/cursos.tjamich.gob.mx/vendor/php-xapi/model/src/Extensions.php
<?php
/*
* This file is part of the xAPI package.
*
* (c) Christian Flothmann <christian.flothmann@xabbuh.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Xabbuh\XApi\Model;
use Xabbuh\XApi\Common\Exception\UnsupportedOperationException;
/**
* xAPI statement extensions.
*
* @author Christian Flothmann <christian.flothmann@xabbuh.de>
*/
final class Extensions implements \ArrayAccess
{
private $extensions;
public function __construct(\SplObjectStorage $extensions = null)
{
$this->extensions = array();
if (null !== $extensions) {
foreach ($extensions as $iri) {
if (!$iri instanceof IRI) {
throw new \InvalidArgumentException(sprintf('Expected an IRI instance as key (got %s).', is_object($iri) ? get_class($iri) : gettype($iri)));
}
$this->extensions[$iri->getValue()] = $extensions[$iri];
}
}
}
/**
* {@inheritdoc}
*/
public function offsetExists($offset): bool
{
if (!$offset instanceof IRI) {
throw new \InvalidArgumentException(sprintf('Expected an IRI instance as key (got %s).', is_object($offset) ? get_class($offset) : gettype($offset)));
}
return isset($this->extensions[$offset->getValue()]);
}
/**
* {@inheritdoc}
*/
public function offsetGet($offset)
{
if (!$offset instanceof IRI) {
throw new \InvalidArgumentException(sprintf('Expected an IRI instance as key (got %s).', is_object($offset) ? get_class($offset) : gettype($offset)));
}
if (!isset($this->extensions[$offset->getValue()])) {
throw new \InvalidArgumentException(sprintf('No extension for key "%s" registered.', $offset->getValue()));
}
return $this->extensions[$offset->getValue()];
}
/**
* {@inheritdoc}
*
* @throws UnsupportedOperationException Statement extensions are immutable
*/
public function offsetSet($offset, $value): void
{
throw new UnsupportedOperationException('xAPI statement extensions are immutable.');
}
/**
* {@inheritdoc}
*
* @throws UnsupportedOperationException Statement extensions are immutable
*/
public function offsetUnset($offset): void
{
throw new UnsupportedOperationException('xAPI statement extensions are immutable.');
}
public function getExtensions(): \SplObjectStorage
{
$extensions = new \SplObjectStorage();
foreach ($this->extensions as $iri => $value) {
$extensions->attach(IRI::fromString($iri), $value);
}
return $extensions;
}
public function equals(Extensions $otherExtensions): bool
{
if (count($this->extensions) !== count($otherExtensions->extensions)) {
return false;
}
foreach ($this->extensions as $iri => $value) {
if (!array_key_exists($iri, $otherExtensions->extensions)) {
return false;
}
if ($this->extensions[$iri] != $otherExtensions->extensions[$iri]) {
return false;
}
}
return true;
}
}
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