public function writeToDatabase()
{
ignore_user_abort(true);
$db_name = Request::all()['name'];
$db_name = str_replace(" ", "_", $db_name);
$feature_extraction = Request::all()['feature'];
$neo = new Neo4JConnector('default', 'http', 'localhost', 7474, 'neo4j', 'aiscu');
$validator = new Neo4JValidator($neo->getConnector());
while ($av = $validator->isWriteLocked()) {
if (!$av) {
sleep(rand(1, 10));
continue;
}
}
try {
$isGranted = $neo->grantLock($db_name);
if ($isGranted) {
$command = "java -Xmx6G -XX:+CMSClassUnloadingEnabled -jar java/data-importer/target/data-importer-1.0-SNAPSHOT.jar " . $db_name . ' ' . $feature_extraction . ' 2>&1';
$output = shell_exec($command);
Log::info($command);
Log::info($output);
if (preg_match('/Exception/', $output)) {
throw new \Exception("Error occured while writing input data to database. Please check logging file.");
}
$neo->execQuery('CREATE (n:Database {name: "' . $db_name . '"})');
} else {
throw new \Exception("Locking database is denied.");
}
} catch (Exception $e) {
throw new \Exception($e);
} finally {
$isReleased = $neo->releaseLock();
$filename1 = $db_name . '_cdr';
$filename2 = $db_name . '_profile';
unlink(storage_path() . '/tmp_db_store/' . $filename1);
unlink(storage_path() . '/tmp_db_store/' . $filename2);
if (!$isReleased) {
throw new \Exception("Database can't be unlocked. Manually unlocking is needed.");
}
}
return 'success';
}
