/usr/share/php/Doctrine/ORM/Cache/DefaultQueryCache.php is in php-doctrine-orm 2.5.14+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the MIT license. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\ORM\Cache;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\ORM\Cache\Persister\CachedPersister;
use Doctrine\ORM\EntityManagerInterface;
use Doctrine\ORM\Query\ResultSetMapping;
use Doctrine\ORM\Mapping\ClassMetadata;
use Doctrine\ORM\PersistentCollection;
use Doctrine\Common\Proxy\Proxy;
use Doctrine\ORM\Cache;
use Doctrine\ORM\Query;
/**
* Default query cache implementation.
*
* @since 2.5
* @author Fabio B. Silva <fabio.bat.silva@gmail.com>
*/
class DefaultQueryCache implements QueryCache
{
/**
* @var \Doctrine\ORM\EntityManagerInterface
*/
private $em;
/**
* @var \Doctrine\ORM\UnitOfWork
*/
private $uow;
/**
* @var \Doctrine\ORM\Cache\Region
*/
private $region;
/**
* @var \Doctrine\ORM\Cache\QueryCacheValidator
*/
private $validator;
/**
* @var \Doctrine\ORM\Cache\Logging\CacheLogger
*/
protected $cacheLogger;
/**
* @var array
*/
private static $hints = array(Query::HINT_CACHE_ENABLED => true);
/**
* @param \Doctrine\ORM\EntityManagerInterface $em The entity manager.
* @param \Doctrine\ORM\Cache\Region $region The query region.
*/
public function __construct(EntityManagerInterface $em, Region $region)
{
$cacheConfig = $em->getConfiguration()->getSecondLevelCacheConfiguration();
$this->em = $em;
$this->region = $region;
$this->uow = $em->getUnitOfWork();
$this->cacheLogger = $cacheConfig->getCacheLogger();
$this->validator = $cacheConfig->getQueryValidator();
}
/**
* {@inheritdoc}
*/
public function get(QueryCacheKey $key, ResultSetMapping $rsm, array $hints = array())
{
if ( ! ($key->cacheMode & Cache::MODE_GET)) {
return null;
}
$entry = $this->region->get($key);
if ( ! $entry instanceof QueryCacheEntry) {
return null;
}
if ( ! $this->validator->isValid($key, $entry)) {
$this->region->evict($key);
return null;
}
$result = array();
$entityName = reset($rsm->aliasMap);
$hasRelation = ( ! empty($rsm->relationMap));
$persister = $this->uow->getEntityPersister($entityName);
$region = $persister->getCacheRegion();
$regionName = $region->getName();
// @TODO - move to cache hydration component
foreach ($entry->result as $index => $entry) {
if (($entityEntry = $region->get($entityKey = new EntityCacheKey($entityName, $entry['identifier']))) === null) {
if ($this->cacheLogger !== null) {
$this->cacheLogger->entityCacheMiss($regionName, $entityKey);
}
return null;
}
if ($this->cacheLogger !== null) {
$this->cacheLogger->entityCacheHit($regionName, $entityKey);
}
if ( ! $hasRelation) {
$result[$index] = $this->uow->createEntity($entityEntry->class, $entityEntry->resolveAssociationEntries($this->em), self::$hints);
continue;
}
$data = $entityEntry->data;
foreach ($entry['associations'] as $name => $assoc) {
$assocPersister = $this->uow->getEntityPersister($assoc['targetEntity']);
$assocRegion = $assocPersister->getCacheRegion();
if ($assoc['type'] & ClassMetadata::TO_ONE) {
if (($assocEntry = $assocRegion->get($assocKey = new EntityCacheKey($assoc['targetEntity'], $assoc['identifier']))) === null) {
if ($this->cacheLogger !== null) {
$this->cacheLogger->entityCacheMiss($assocRegion->getName(), $assocKey);
}
$this->uow->hydrationComplete();
return null;
}
$data[$name] = $this->uow->createEntity($assocEntry->class, $assocEntry->resolveAssociationEntries($this->em), self::$hints);
if ($this->cacheLogger !== null) {
$this->cacheLogger->entityCacheHit($assocRegion->getName(), $assocKey);
}
continue;
}
if ( ! isset($assoc['list']) || empty($assoc['list'])) {
continue;
}
$targetClass = $this->em->getClassMetadata($assoc['targetEntity']);
$collection = new PersistentCollection($this->em, $targetClass, new ArrayCollection());
foreach ($assoc['list'] as $assocIndex => $assocId) {
if (($assocEntry = $assocRegion->get($assocKey = new EntityCacheKey($assoc['targetEntity'], $assocId))) === null) {
if ($this->cacheLogger !== null) {
$this->cacheLogger->entityCacheMiss($assocRegion->getName(), $assocKey);
}
$this->uow->hydrationComplete();
return null;
}
$element = $this->uow->createEntity($assocEntry->class, $assocEntry->resolveAssociationEntries($this->em), self::$hints);
$collection->hydrateSet($assocIndex, $element);
if ($this->cacheLogger !== null) {
$this->cacheLogger->entityCacheHit($assocRegion->getName(), $assocKey);
}
}
$data[$name] = $collection;
$collection->setInitialized(true);
}
$result[$index] = $this->uow->createEntity($entityEntry->class, $data, self::$hints);
}
$this->uow->hydrationComplete();
return $result;
}
/**
* {@inheritdoc}
*/
public function put(QueryCacheKey $key, ResultSetMapping $rsm, $result, array $hints = array())
{
if ($rsm->scalarMappings) {
throw new CacheException("Second level cache does not support scalar results.");
}
if (count($rsm->entityMappings) > 1) {
throw new CacheException("Second level cache does not support multiple root entities.");
}
if ( ! $rsm->isSelect) {
throw new CacheException("Second-level cache query supports only select statements.");
}
if (isset($hints[Query::HINT_FORCE_PARTIAL_LOAD]) && $hints[Query::HINT_FORCE_PARTIAL_LOAD]) {
throw new CacheException("Second level cache does not support partial entities.");
}
if ( ! ($key->cacheMode & Cache::MODE_PUT)) {
return false;
}
$data = array();
$entityName = reset($rsm->aliasMap);
$hasRelation = ( ! empty($rsm->relationMap));
$metadata = $this->em->getClassMetadata($entityName);
$persister = $this->uow->getEntityPersister($entityName);
if ( ! ($persister instanceof CachedPersister)) {
throw CacheException::nonCacheableEntity($entityName);
}
$region = $persister->getCacheRegion();
foreach ($result as $index => $entity) {
$identifier = $this->uow->getEntityIdentifier($entity);
$data[$index]['identifier'] = $identifier;
$data[$index]['associations'] = array();
if (($key->cacheMode & Cache::MODE_REFRESH) || ! $region->contains($entityKey = new EntityCacheKey($entityName, $identifier))) {
// Cancel put result if entity put fail
if ( ! $persister->storeEntityCache($entity, $entityKey)) {
return false;
}
}
if ( ! $hasRelation) {
continue;
}
// @TODO - move to cache hydration components
foreach ($rsm->relationMap as $name) {
$assoc = $metadata->associationMappings[$name];
if (($assocValue = $metadata->getFieldValue($entity, $name)) === null || $assocValue instanceof Proxy) {
continue;
}
if ( ! isset($assoc['cache'])) {
throw CacheException::nonCacheableEntityAssociation($entityName, $name);
}
$assocPersister = $this->uow->getEntityPersister($assoc['targetEntity']);
$assocRegion = $assocPersister->getCacheRegion();
$assocMetadata = $assocPersister->getClassMetadata();
// Handle *-to-one associations
if ($assoc['type'] & ClassMetadata::TO_ONE) {
$assocIdentifier = $this->uow->getEntityIdentifier($assocValue);
if (($key->cacheMode & Cache::MODE_REFRESH) || ! $assocRegion->contains($entityKey = new EntityCacheKey($assocMetadata->rootEntityName, $assocIdentifier))) {
// Cancel put result if association entity put fail
if ( ! $assocPersister->storeEntityCache($assocValue, $entityKey)) {
return false;
}
}
$data[$index]['associations'][$name] = array(
'targetEntity' => $assocMetadata->rootEntityName,
'identifier' => $assocIdentifier,
'type' => $assoc['type']
);
continue;
}
// Handle *-to-many associations
$list = array();
foreach ($assocValue as $assocItemIndex => $assocItem) {
$assocIdentifier = $this->uow->getEntityIdentifier($assocItem);
if (($key->cacheMode & Cache::MODE_REFRESH) || ! $assocRegion->contains($entityKey = new EntityCacheKey($assocMetadata->rootEntityName, $assocIdentifier))) {
// Cancel put result if entity put fail
if ( ! $assocPersister->storeEntityCache($assocItem, $entityKey)) {
return false;
}
}
$list[$assocItemIndex] = $assocIdentifier;
}
$data[$index]['associations'][$name] = array(
'targetEntity' => $assocMetadata->rootEntityName,
'type' => $assoc['type'],
'list' => $list,
);
}
}
return $this->region->put($key, new QueryCacheEntry($data));
}
/**
* {@inheritdoc}
*/
public function clear()
{
return $this->region->evictAll();
}
/**
* {@inheritdoc}
*/
public function getRegion()
{
return $this->region;
}
}
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