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<?php
/**
* Matomo - free/libre analytics platform
*
* @link https://matomo.org
* @license https://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*/
namespace Piwik\Columns;
use Piwik\CacheId;
use Piwik\Cache as PiwikCache;
class DimensionsProvider
{
/**
* @param $dimensionId
* @return ?Dimension
*/
public function factory($dimensionId)
{
$listDimensions = self::getMapOfNameToDimension();
if (empty($listDimensions) || !is_array($listDimensions) || !$dimensionId || !array_key_exists($dimensionId, $listDimensions)) {
return null;
}
return $listDimensions[$dimensionId];
}
private static function getMapOfNameToDimension()
{
$cacheId = CacheId::siteAware(CacheId::pluginAware('DimensionFactoryMap'));
$cache = PiwikCache::getTransientCache();
if ($cache->contains($cacheId)) {
$mapIdToDimension = $cache->fetch($cacheId);
} else {
$dimensions = new static();
$dimensions = $dimensions->getAllDimensions();
$mapIdToDimension = array();
foreach ($dimensions as $dimension) {
$mapIdToDimension[$dimension->getId()] = $dimension;
}
$cache->save($cacheId, $mapIdToDimension);
}
return $mapIdToDimension;
}
/**
* Returns a list of all available dimensions.
* @return Dimension[]
*/
public function getAllDimensions()
{
return Dimension::getAllDimensions();
}
}
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