public function testContentHashId()
{
$hash = HashBuilder::createHashIdForContent('Foo');
$this->assertInternalType('string', $hash);
$this->assertSame($hash, HashBuilder::createHashIdForContent(array('Foo')));
$this->assertContains('Bar', HashBuilder::createHashIdForContent(array('Foo'), 'Bar'));
}
private function createSubobjectId(ArrayFormatter $parameters)
{
$isAnonymous = in_array($parameters->getFirst(), array(null, '', '-'));
$this->useFirstElementForPropertyLabel = $this->useFirstElementForPropertyLabel && !$isAnonymous;
if ($this->useFirstElementForPropertyLabel || $isAnonymous) {
return HashBuilder::createHashIdForContent($parameters->toArray(), '_');
}
return $parameters->getFirst();
}
/**
* @see EntityLookup::getPropertySubjects
*
* @since 2.5
*
* {@inheritDoc}
*/
public function getPropertySubjects(DIProperty $property, DataItem $dataItem = null, RequestOptions $requestOptions = null)
{
// The cache is not used for $dataItem === null (means all values for
// the given property are returned)
if ($dataItem === null || !$dataItem instanceof DIWikiPage || !$this->blobStore->canUse() || !$this->canUseValueLookupFeature(SMW_VL_PS)) {
return $this->entityLookup->getPropertySubjects($property, $dataItem, $requestOptions);
}
// Added as linked list as we keep the container ttl different from
// that of the main container
$sid = $this->getHashFrom($dataItem, 'ps');
$container = $this->blobStore->read($sid);
$psid = HashBuilder::createHashIdForContent(array($property->getKey(), $property->isInverse(), (array) $requestOptions, self::VERSION), 'ps:');
if ($container->has($psid)) {
return $container->get($psid);
}
$result = $this->entityLookup->getPropertySubjects($property, $dataItem, $requestOptions);
$container->set($psid, $result);
// We set a short lifetime (5 min) in order to cache repeated requests but
// avoiding a complex invalidation during a subject update otherwise all
// properties of a container would require scanning and removal
$container->setExpiryInSeconds(60 * 5);
$this->blobStore->save($container);
$this->appendToList($sid, $dataItem);
return $result;
}
/**
* Returns result hash value
*
* @since 1.9
*
* @return string
*/
public function getHash()
{
return HashBuilder::createHashIdForContent($this->serializeToArray());
}
private function getParameters(ParserParameterProcessor $parserParameterProcessor)
{
$id = $parserParameterProcessor->getFirst();
$isAnonymous = in_array($id, array(null, '', '-'));
$this->isEnabledFirstElementAsPropertyLabel = $this->isEnabledFirstElementAsPropertyLabel && !$isAnonymous;
$parameters = $this->doPrepareParameters($parserParameterProcessor);
// Reclaim the ID to be hash based on the content
if ($this->isEnabledFirstElementAsPropertyLabel || $isAnonymous) {
$id = HashBuilder::createHashIdForContent($parameters, '_');
}
return array($parameters, $id);
}
