public function addDocument(Document $document)
{
try {
$level = error_reporting(0);
parent::addDocument($document);
} catch (\Exception $e) {
error_reporting($level);
}
}
/**
* Search page for the term in the index.
*
* @param $term
* @param array $fields
* @return array|\ZendSearch\Lucene\Search\QueryHit
*/
public function search($term, $fields = [])
{
Wildcard::setMinPrefixLength($this->minPrefixLength);
Lucene::setResultSetLimit($this->resultsLimit);
$query = new MultiTerm();
if (count($fields)) {
foreach ($fields as $field => $value) {
$query->addTerm(new IndexTerm($value, $field), true);
}
}
$subTerm = explode(' ', $term);
foreach ($subTerm as $value) {
$query->addTerm(new IndexTerm($value), true);
}
return $this->luceneIndex->find($query);
}
/**
* Get segments file name
*
* @param integer $generation
* @return string
*/
public static function getSegmentFileName($generation)
{
return Index::getSegmentFileName($generation);
}
/**
* Get name for new segment
*
* @return string
*/
private function _newSegmentName()
{
Lucene\LockManager::obtainWriteLock($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);
}
/**
* Full index optimization.
* Each index segment is entirely independent portion of data.
* So indexes containing more segments need more memory and time for searching.
* Index optimization is a process of merging several segments into a new one.
* Index optimization works with data streams and doesn't
* take a lot of memory but does require processor resources and time.
*/
public function optimize()
{
$this->luceneIndex->optimize();
}
/**
* Remove the existing entry for the given Document from the index, if it exists.
*
* @param Lucene\Index $index The Zend Lucene Index
* @param string $hash
*/
private function removeExisting(Lucene\Index $index, $hash)
{
try {
$hits = $index->find(self::HASH_FIELDNAME . ':' . $hash);
foreach ($hits as $hit) {
$index->delete($hit->id);
}
} catch (\Exception $ex) {
// FIXME no result ???
}
}
