Ejemplo n.º 1
0
 /**
  * Instanciate the Lucene index
  * 
  * The index will be created if it doesn't exist yet.
  * 
  * @return \Zend_Search_Lucene_Interface							Lucene index instance
  * @throws Exception											If the index cannot be created
  */
 protected function _index()
 {
     // One-time instanciation or creation of the lucene index
     if ($this->_index === null) {
         // Try to instanciate an existing lucene index
         try {
             $this->_index = \Zend_Search_Lucene::open($this->_indexDirectory);
             // If an error occurs ...
         } catch (\Zend_Search_Lucene_Exception $e) {
             // Try to create a new lucene index ...
             try {
                 $this->_index = \Zend_Search_Lucene::create($this->_indexDirectory);
                 // If an error occurs: Failure
             } catch (\Zend_Search_Lucene_Exception $e) {
                 throw new Exception(sprintf('Error creating lucene index in "%1$s", reason: "%2$s"', $this->_indexDirectory, $e->getMessage()));
             }
         }
         // Index setup
         \Zend_Search_Lucene_Storage_Directory_Filesystem::setDefaultFilePermissions(0664);
         \Zend_Search_Lucene_Analysis_Analyzer::setDefault(new \Zend_Search_Lucene_Analysis_Analyzer_Common_Utf8Num_CaseInsensitive());
         \Zend_Search_Lucene_Search_QueryParser::setDefaultEncoding('UTF-8');
         // Minimize memory consumption
         $this->_index->setMaxBufferedDocs(1);
         // Set optimization frequency
         $this->_index->setMergeFactor(max(1, intval($GLOBALS['TYPO3_CONF_VARS']['EXT']['extParams']['tw_lucenesearch']['mergeFactor'])));
         // If applicable: Optimize index
         if ($this->_indexOptimize) {
             $this->_index->optimize();
         }
         $this->_index->commit();
         if (TYPO3_MODE == 'FE') {
             \Zend_Search_Lucene::setTermsPerQueryLimit(\Tollwerk\TwLucenesearch\Utility\Indexer::indexConfig($GLOBALS['TSFE'], 'search.limits.query'));
         }
     }
     return $this->_index;
 }
Ejemplo n.º 2
0
 /**
  * Set index mergeFactor option
  *
  * mergeFactor determines how often segment indices are merged by addDocument().
  * With smaller values, less RAM is used while indexing,
  * and searches on unoptimized indices are faster,
  * but indexing speed is slower.
  * With larger values, more RAM is used during indexing,
  * and while searches on unoptimized indices are slower,
  * indexing is faster.
  * Thus larger values (> 10) are best for batch index creation,
  * and smaller values (< 10) for indices that are interactively maintained.
  *
  * Default value is 10
  *
  * @param integer $maxMergeDocs
  */
 public function setMergeFactor($mergeFactor)
 {
     $this->_index->setMergeFactor($mergeFactor);
 }