/** * Calculate result vector for non Conjunction query * (like '+something -another') * * @param Zend_Search_Lucene $reader */ private function _calculateNonConjunctionResult($reader) { if (extension_loaded('bitset')) { $required = null; $neither = bitset_empty(); $prohibited = bitset_empty(); foreach ($this->_terms as $termId => $term) { $termDocs = bitset_from_array($reader->termDocs($term)); if ($this->_signs[$termId] === true) { // required if ($required !== null) { $required = bitset_intersection($required, $termDocs); } else { $required = $termDocs; } } elseif ($this->_signs[$termId] === false) { // prohibited $prohibited = bitset_union($prohibited, $termDocs); } else { // neither required, nor prohibited $neither = bitset_union($neither, $termDocs); } $this->_termsPositions[$termId] = $reader->termPositions($term); } if ($required === null) { $required = $neither; } $this->_resVector = bitset_intersection($required, bitset_invert($prohibited, $reader->count())); } else { $required = null; $neither = array(); $prohibited = array(); foreach ($this->_terms as $termId => $term) { $termDocs = array_flip($reader->termDocs($term)); if ($this->_signs[$termId] === true) { // required if ($required !== null) { // substitute for bitset_intersection foreach ($required as $key => $value) { if (!isset($termDocs[$key])) { unset($required[$key]); } } } else { $required = $termDocs; } } elseif ($this->_signs[$termId] === false) { // prohibited // substitute for bitset_union foreach ($termDocs as $key => $value) { $prohibited[$key] = $value; } } else { // neither required, nor prohibited // substitute for bitset_union foreach ($termDocs as $key => $value) { $neither[$key] = $value; } } $this->_termsPositions[$termId] = $reader->termPositions($term); } if ($required === null) { $required = $neither; } foreach ($required as $key => $value) { if (isset($prohibited[$key])) { unset($required[$key]); } } $this->_resVector = $required; } }
/** * Write changes if it's necessary. * * This method must be invoked only from the Writer _updateSegments() method, * so index Write lock has to be already obtained. * * @internal * @throws Zend_Search_Lucene_Exceptions */ public function writeChanges() { // Get new generation number $latestDelGen = $this->_detectLatestDelGen(); if (!$this->_deletedDirty) { // There was no deletions by current process if ($latestDelGen == $this->_delGen) { // Delete file hasn't been updated by any concurrent process return; } else if ($latestDelGen > $this->_delGen) { // Delete file has been updated by some concurrent process // Reload deletions file $this->_delGen = $latestDelGen; $this->_deleted = $this->_loadDelFile(); return; } else { require_once 'Zend/Search/Lucene/Exception.php'; throw new Zend_Search_Lucene_Exception('Delete file processing workflow is corrupted for the segment \'' . $this->_name . '\'.'); } } if ($latestDelGen > $this->_delGen) { // Merge current deletions with latest deletions file $this->_delGen = $latestDelGen; $latestDelete = $this->_loadDelFile(); if (extension_loaded('bitset')) { $this->_deleted = bitset_union($this->_deleted, $latestDelete); } else { $this->_deleted += $latestDelete; } } if (extension_loaded('bitset')) { $delBytes = $this->_deleted; $bitCount = count(bitset_to_array($delBytes)); } else { $byteCount = floor($this->_docCount/8)+1; $delBytes = str_repeat(chr(0), $byteCount); for ($count = 0; $count < $byteCount; $count++) { $byte = 0; for ($bit = 0; $bit < 8; $bit++) { if (isset($this->_deleted[$count*8 + $bit])) { $byte |= (1<<$bit); } } $delBytes[$count] = chr($byte); } $bitCount = count($this->_deleted); } if ($this->_delGen == -1) { // Set delete file generation number to 1 $this->_delGen = 1; } else { // Increase delete file generation number by 1 $this->_delGen++; } $delFile = $this->_directory->createFile($this->_name . '_' . base_convert($this->_delGen, 10, 36) . '.del'); $delFile->writeInt($this->_docCount); $delFile->writeInt($bitCount); $delFile->writeBytes($delBytes); $this->_deletedDirty = false; }
public function writeChanges() { $latestDelGen = $this->_detectLatestDelGen(); if (!$this->_deletedDirty) { if ($latestDelGen == $this->_delGen) { return; } else { if ($latestDelGen > $this->_delGen) { $this->_delGen = $latestDelGen; $this->_deleted = $this->_loadDelFile(); return; } else { throw new Zend_Search_Lucene_Exception('Delete file processing workflow is corrupted for the segment \'' . $this->_name . '\'.'); } } } if ($latestDelGen > $this->_delGen) { $this->_delGen = $latestDelGen; $latestDelete = $this->_loadDelFile(); if (extension_loaded('bitset')) { $this->_deleted = bitset_union($this->_deleted, $latestDelete); } else { $this->_deleted += $latestDelete; } } if (extension_loaded('bitset')) { $delBytes = $this->_deleted; $bitCount = count(bitset_to_array($delBytes)); } else { $byteCount = floor($this->_docCount / 8) + 1; $delBytes = str_repeat(chr(0), $byteCount); for ($count = 0; $count < $byteCount; $count++) { $byte = 0; for ($bit = 0; $bit < 8; $bit++) { if (isset($this->_deleted[$count * 8 + $bit])) { $byte |= 1 << $bit; } } $delBytes[$count] = chr($byte); } $bitCount = count($this->_deleted); } if ($this->_delGen == -1) { $this->_delGen = 1; } else { $this->_delGen++; } $delFile = $this->_directory->createFile($this->_name . '_' . base_convert($this->_delGen, 10, 36) . '.del'); $delFile->writeInt($this->_docCount); $delFile->writeInt($bitCount); $delFile->writeBytes($delBytes); $this->_deletedDirty = false; }