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<?php
namespace Icinga\Module\Director\Db\Branch;
use Icinga\Exception\NotFoundError;
use Icinga\Module\Director\Db;
use Icinga\Module\Director\Objects\IcingaHost;
use Icinga\Module\Director\Objects\IcingaServiceSet;
use Ramsey\Uuid\Uuid;
use Ramsey\Uuid\UuidInterface;
use function is_int;
use function is_resource;
use function is_string;
class UuidLookup
{
/**
* @param Db $connection
* @param Branch $branch
* @param string $objectType
* @param int|string $key
* @param IcingaHost|null $host
* @param IcingaServiceSet $set
* @return ?UuidInterface
*/
public static function findServiceUuid(
Db $connection,
Branch $branch,
$objectType = null,
$key = null,
IcingaHost $host = null,
IcingaServiceSet $set = null
) {
$db = $connection->getDbAdapter();
$query = $db->select()->from('icinga_service', 'uuid');
if ($objectType) {
$query->where('object_type = ?', $objectType);
}
$query = self::addKeyToQuery($connection, $query, $key);
if ($host) {
$query->where('host_id = ?', $host->get('id'));
}
if ($set) {
$query->where('service_set_id = ?', $set->get('id'));
}
$uuid = self::fetchOptionalUuid($connection, $query);
if ($uuid === null && $branch->isBranch()) {
// TODO: use different tables?
$query = $db->select()
->from('branched_icinga_service', 'uuid')
->where('branch_uuid = ?', $connection->quoteBinary($branch->getUuid()->getBytes()));
if ($objectType) {
$query->where('object_type = ?', $objectType);
}
$query = self::addKeyToQuery($connection, $query, $key);
if ($host) {
// TODO: uuid?
$query->where('host = ?', $host->getObjectName());
}
if ($set) {
$query->where('service_set = ?', $set->getObjectName());
}
$uuid = self::fetchOptionalUuid($connection, $query);
}
return $uuid;
}
/**
* @param int|string|array $key
* @param string $table
* @param Db $connection
* @param Branch $branch
* @return UuidInterface
* @throws NotFoundError
*/
public static function requireUuidForKey($key, $table, Db $connection, Branch $branch)
{
$uuid = self::findUuidForKey($key, $table, $connection, $branch);
if ($uuid === null) {
throw new NotFoundError('No such object available');
}
return $uuid;
}
/**
* @param int|string|array $key
* @param string $table
* @param Db $connection
* @param Branch $branch
* @return ?UuidInterface
*/
public static function findUuidForKey($key, $table, Db $connection, Branch $branch)
{
$db = $connection->getDbAdapter();
$query = self::addKeyToQuery($connection, $db->select()->from($table, 'uuid'), $key);
$uuid = self::fetchOptionalUuid($connection, $query);
if ($uuid === null && $branch->isBranch()) {
if (is_array($key) && isset($key['host_id'])) {
$key['host'] = IcingaHost::load($key['host_id'], $connection)->getObjectName();
unset($key['host_id']);
}
$query = self::addKeyToQuery($connection, $db->select()->from("branched_$table", 'uuid'), $key);
$query->where('branch_uuid = ?', $connection->quoteBinary($branch->getUuid()->getBytes()));
$uuid = self::fetchOptionalUuid($connection, $query);
}
return $uuid;
}
protected static function addKeyToQuery(Db $connection, $query, $key)
{
if (is_int($key)) {
$query->where('id = ?', $key);
} elseif (is_string($key)) {
$query->where('object_name = ?', $key);
} else {
foreach ($key as $k => $v) {
$query->where($connection->getDbAdapter()->quoteIdentifier($k) . ' = ?', $v);
}
}
return $query;
}
protected static function fetchOptionalUuid(Db $connection, $query)
{
$result = $connection->getDbAdapter()->fetchOne($query);
if (is_resource($result)) {
$result = stream_get_contents($result);
}
if (is_string($result)) {
return Uuid::fromBytes($result);
}
return null;
}
}
|
