/**
* Returns Lock object.
*
* @return Mage_Index_Model_Lock|null
*/
protected function _getLockInstance()
{
if (is_null($this->_lockInstance)) {
$this->_lockInstance = Mage_Index_Model_Lock::getInstance();
}
return $this->_lockInstance;
}
/**
* Run full re-index for all invalidated indexes
* Refresh all active indexes by changeLog
*
* @param Mage_Cron_Model_Schedule $schedule
* @throws Exception
* @return Enterprise_Index_Model_Observer
*/
public function refreshIndex(Mage_Cron_Model_Schedule $schedule)
{
/** @var $helper Enterprise_Index_Helper_Data */
$helper = Mage::helper('enterprise_index');
/** @var $lock Mage_Index_Model_Lock */
$lock = Mage_Index_Model_Lock::getInstance();
if ($lock->setLock(self::REINDEX_FULL_LOCK, true)) {
/**
* Workaround for fatals and memory crashes: Invalidating indexers that are in progress
* Successful lock setting is considered that no other full reindex processes are running
*/
$this->_invalidateInProgressIndexers();
$client = Mage::getModel('enterprise_mview/client');
try {
//full re-index
$inactiveIndexes = $this->_getInactiveIndexersByPriority();
$rebuiltIndexes = array();
foreach ($inactiveIndexes as $inactiveIndexer) {
$tableName = (string) $inactiveIndexer->index_table;
$actionName = (string) $inactiveIndexer->action_model->all;
$client->init($tableName);
if ($actionName) {
$client->execute($actionName);
$rebuiltIndexes[] = $tableName;
}
}
//re-index by changelog
$indexers = $helper->getIndexers(true);
foreach ($indexers as $indexerName => $indexerData) {
$indexTable = (string) $indexerData->index_table;
$actionName = (string) $indexerData->action_model->changelog;
$client->init($indexTable);
if (isset($actionName) && !in_array($indexTable, $rebuiltIndexes)) {
$client->execute($actionName);
}
}
} catch (Exception $e) {
$lock->releaseLock(self::REINDEX_FULL_LOCK, true);
throw $e;
}
$lock->releaseLock(self::REINDEX_FULL_LOCK, true);
} else {
throw new Enterprise_Index_Exception("Can't lock indexer process.");
}
return $this;
}