public function __construct($directory = null, $create = false)
{
if ($directory === null) {
require_once 'Zend/Search/Lucene/Exception.php';
throw new Zend_Search_Exception('No index directory specified');
}
if ($directory instanceof Zend_Search_Lucene_Storage_Directory_Filesystem) {
$this->_directory = $directory;
$this->_closeDirOnExit = false;
} else {
$this->_directory = new Zend_Search_Lucene_Storage_Directory_Filesystem($directory);
$this->_closeDirOnExit = true;
}
$this->_segmentInfos = array();
// Mark index as "under processing" to prevent other processes from premature index cleaning
Zend_Search_Lucene_LockManager::obtainReadLock($this->_directory);
$this->_generation = self::getActualGeneration($this->_directory);
if ($create) {
require_once 'Zend/Search/Lucene/Exception.php';
try {
Zend_Search_Lucene_LockManager::obtainWriteLock($this->_directory);
} catch (Zend_Search_Lucene_Exception $e) {
Zend_Search_Lucene_LockManager::releaseReadLock($this->_directory);
if (strpos($e->getMessage(), 'Can\'t obtain exclusive index lock') === false) {
throw $e;
} else {
throw new Zend_Search_Lucene_Exception('Can\'t create index. It\'s under processing now');
}
}
if ($this->_generation == -1) {
// Directory doesn't contain existing index, start from 1
$this->_generation = 1;
$nameCounter = 0;
} else {
// Directory contains existing index
$segmentsFile = $this->_directory->getFileObject(self::getSegmentFileName($this->_generation));
$segmentsFile->seek(12);
// 12 = 4 (int, file format marker) + 8 (long, index version)
$nameCounter = $segmentsFile->readInt();
$this->_generation++;
}
Zend_Search_Lucene_Index_Writer::createIndex($this->_directory, $this->_generation, $nameCounter);
Zend_Search_Lucene_LockManager::releaseWriteLock($this->_directory);
}
if ($this->_generation == -1) {
require_once 'Zend/Search/Lucene/Exception.php';
throw new Zend_Search_Lucene_Exception('Index doesn\'t exists in the specified directory.');
} else {
if ($this->_generation == 0) {
$this->_readPre21SegmentsFile();
} else {
$this->_readSegmentsFile();
}
}
}
public function __construct($directory = null, $create = false)
{
if ($directory === null) {
throw new Zend_Search_Exception('No index directory specified');
}
if (is_string($directory)) {
$this->_directory = new Zend_Search_Lucene_Storage_Directory_Filesystem($directory);
$this->_closeDirOnExit = true;
} else {
$this->_directory = $directory;
$this->_closeDirOnExit = false;
}
$this->_segmentInfos = array();
Zend_Search_Lucene_LockManager::obtainReadLock($this->_directory);
$this->_generation = self::getActualGeneration($this->_directory);
if ($create) {
try {
Zend_Search_Lucene_LockManager::obtainWriteLock($this->_directory);
} catch (Zend_Search_Lucene_Exception $e) {
Zend_Search_Lucene_LockManager::releaseReadLock($this->_directory);
if (strpos($e->getMessage(), 'Can\'t obtain exclusive index lock') === false) {
throw new Zend_Search_Lucene_Exception($e->getMessage(), $e->getCode(), $e);
} else {
throw new Zend_Search_Lucene_Exception('Can\'t create index. It\'s under processing now', 0, $e);
}
}
if ($this->_generation == -1) {
$this->_generation = 1;
$nameCounter = 0;
} else {
$segmentsFile = $this->_directory->getFileObject(self::getSegmentFileName($this->_generation));
$segmentsFile->seek(12);
$nameCounter = $segmentsFile->readInt();
$this->_generation++;
}
Zend_Search_Lucene_Index_Writer::createIndex($this->_directory, $this->_generation, $nameCounter);
Zend_Search_Lucene_LockManager::releaseWriteLock($this->_directory);
}
if ($this->_generation == -1) {
throw new Zend_Search_Lucene_Exception('Index doesn\'t exists in the specified directory.');
} else {
if ($this->_generation == 0) {
$this->_readPre21SegmentsFile();
} else {
$this->_readSegmentsFile();
}
}
}
