Base::measureFiles

public function measureFiles()
{
	$this->fileSize = 0;
	$this->fileCount = 0;
	$this->diskSize = 0;
	$this->diskCount = 0;

	if (count($this->getFilter()) > 0 && !$this->canBeFiltered())
	{
		// nonfiterable
		return $this;
	}

	self::loadTablesInformation();

	$connection = Main\Application::getConnection();

	$source = array();

	$entityList = static::getEntityList();
	foreach ($entityList as $entityClass)
	{
		$entityUserFieldList = $this->getUserTypeFieldList($entityClass);
		/** @var array $userField */
		foreach ($entityUserFieldList as $userField)
		{
			$sql = $this->prepareUserFieldQuery($entityClass, $userField);
			if ($sql !== '')
			{
				$source[] = $sql;
			}
		}

		$diskConnector = static::getDiskConnector($entityClass);
		if ($diskConnector !== null)
		{
			$sql = $this->prepareDiskAttachedQuery($entityClass, $diskConnector);
			if ($sql !== '')
			{
				$source[] = $sql;
			}
		}

		$liveFeedConnector = static::getLiveFeedConnector($entityClass);
		if ($liveFeedConnector !== null)
		{
			$sql = $this->prepareLiveFeedQuery($entityClass, $liveFeedConnector);
			if ($sql !== '')
			{
				$source[] = $sql;
			}
		}
	}
	if (count($source) > 0)
	{

		$querySql = "
			SELECT 
				SUM(src.FILE_SIZE) as FILE_SIZE,
				SUM(src.FILE_COUNT) as FILE_COUNT,
				SUM(src.DISK_SIZE) as DISK_SIZE,
				SUM(src.DISK_COUNT) as DISK_COUNT
			FROM 
			(
				(". implode(' ) UNION ( ', $source). ")
			) src
		";

		$result = $connection->query($querySql);
		if ($row = $result->fetch())
		{
			$this->fileSize += (double)$row['FILE_SIZE'];
			$this->fileCount += (double)$row['FILE_COUNT'];
			$this->diskSize += (double)$row['DISK_SIZE'];
			$this->diskCount += (double)$row['DISK_COUNT'];
		}
	}


	$data = array(
		'INDICATOR_TYPE' => static::getIndicatorId(),
		'OWNER_ID' => $this->getOwner(),
		'STAGE_SEMANTIC_ID' => '-',
		'FILE_SIZE' => $this->fileSize,
		'FILE_COUNT' => $this->fileCount,
		'DISK_SIZE' => $this->diskSize,
		'DISK_COUNT' => $this->diskCount,
	);

	$insert = $connection->getSqlHelper()->prepareInsert(Crm\VolumeTable::getTableName(), $data);

	$querySql = 'INSERT INTO '.$connection->getSqlHelper()->quote(Crm\VolumeTable::getTableName()). '('. $insert[0]. ') VALUES ('. $insert[1]. ')';

	Crm\VolumeTable::deleteBatch(array(
		'=INDICATOR_TYPE' => static::getIndicatorId(),
		'=OWNER_ID' => $this->getOwner(),
		'=AGENT_LOCK' => Volume\Cleaner::TASK_STATUS_NONE,
	));

	$connection->queryExecute($querySql);

	return $this;
}