/**
* @static
* @throws phpMorphy_Exception
* @param phpMorphy_Storage_StorageInterface $storage
* @param bool $isLazy
* @return phpMorphy_Fsa_FsaInterface
*/
static function create(phpMorphy_Storage_StorageInterface $storage, $isLazy)
{
if ($isLazy) {
return new phpMorphy_Fsa_Proxy($storage);
}
$header = phpMorphy_Fsa_FsaAbstract::readHeader($storage->read(0, self::HEADER_SIZE, true));
if (!phpMorphy_Fsa_FsaAbstract::validateHeader($header)) {
throw new phpMorphy_Exception('Invalid fsa format');
}
if ($header['flags']['is_sparse']) {
$type = 'sparse';
} else {
if ($header['flags']['is_tree']) {
$type = 'tree';
} else {
throw new phpMorphy_Exception('Only sparse or tree fsa`s supported');
}
}
$storage_type = $storage->getTypeAsString();
$file_path = __DIR__ . "/access/fsa_{$type}_{$storage_type}.php";
$clazz = 'phpMorphy_Fsa_' . ucfirst($type) . '_' . ucfirst($storage_type);
return new $clazz($storage->getResource(), $header);
}
protected function createFsa(phpMorphy_Storage_StorageInterface $storage, $lazy)
{
return phpMorphy_Fsa_FsaAbstract::create($storage, $lazy);
}
protected function proxyInstantiate()
{
$result = phpMorphy_Fsa_FsaAbstract::create($this->storage, false);
unset($this->storage);
return $result;
}
