/**
* Object destructor
*/
public function __destruct()
{
$this->commit();
// Release "under processing" flag
LockManager::releaseReadLock($this->_directory);
if ($this->_closeDirOnExit) {
$this->_directory->close();
}
$this->_directory = null;
$this->_writer = null;
$this->_segmentInfos = null;
}
/**
* Get name for new segment
*
* @return string
*/
private function _newSegmentName()
{
Lucene\LockManager::obtainWriteLock($this->_directory);
$generation = Lucene\Index::getActualGeneration($this->_directory);
$segmentsFile = $this->_directory->getFileObject(Lucene\Index::getSegmentFileName($generation), false);
$segmentsFile->seek(12);
// 12 = 4 (int, file format marker) + 8 (long, index version)
$segmentNameCounter = $segmentsFile->readInt();
$segmentsFile->seek(12);
// 12 = 4 (int, file format marker) + 8 (long, index version)
$segmentsFile->writeInt($segmentNameCounter + 1);
// Flash output to guarantee that wrong value will not be loaded between unlock and
// return (which calls $segmentsFile destructor)
$segmentsFile->flush();
Lucene\LockManager::releaseWriteLock($this->_directory);
return '_' . base_convert($segmentNameCounter, 10, 36);
}
/**
* Generate compound index file
*/
protected function _generateCFS()
{
$cfsFile = $this->_directory->createFile($this->_name . '.cfs');
$cfsFile->writeVInt(count($this->_files));
$dataOffsetPointers = array();
foreach ($this->_files as $fileName) {
$dataOffsetPointers[$fileName] = $cfsFile->tell();
$cfsFile->writeLong(0);
// write dummy data
$cfsFile->writeString($fileName);
}
foreach ($this->_files as $fileName) {
// Get actual data offset
$dataOffset = $cfsFile->tell();
// Seek to the data offset pointer
$cfsFile->seek($dataOffsetPointers[$fileName]);
// Write actual data offset value
$cfsFile->writeLong($dataOffset);
// Seek back to the end of file
$cfsFile->seek($dataOffset);
$dataFile = $this->_directory->getFileObject($fileName);
$byteCount = $this->_directory->fileLength($fileName);
while ($byteCount > 0) {
$data = $dataFile->readBytes(min($byteCount, 131072));
$byteCount -= strlen($data);
$cfsFile->writeBytes($data);
}
$this->_directory->deleteFile($fileName);
}
}
/**
* Release exclusive optimization lock
*
* @param \Zend\Search\Lucene\Storage\Directory $lockDirectory
*/
public static function releaseOptimizationLock(Directory $lockDirectory)
{
$lock = $lockDirectory->getFileObject(self::OPTIMIZATION_LOCK_FILE);
$lock->unlock();
}
