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(int)($series->r === null);
if ($invalid_sphere != 0 && $invalid_sphere != 4) {
throw new BadRequestException("Invalid sphere parameters");
} else if($invalid_sphere == 0) {
$parameters = array_merge($parameters, array(':x' => $series->x,
':y' => $series->y,
':z' => $series->z,
':r' => $series->r));
$query .= ' AND SQRT(POW(x - :x, 2) + POW(y - :y, 2) + POW(z - :z, 2)) <= :r + r';
$filter_sphere = true;
} else {
$filter_sphere = false;
}
$query .= ' AND domain = :domain AND count > 0;';
$conn = self::_mysqlConnect(Config::config()::MYSQL_SEVERNAME,
Config::config()::MYSQL_PORT,
Config::config()::MYSQL_DBNAME,
Config::config()::MYSQL_USERNAME,
Config::config()::MYSQL_PASSWORD);
$select_stmt = $conn->prepare($query);
$select_stmt->execute($parameters);
$id_set = \Cassandra\Type::collection(\Cassandra\Type::bigint())->create();
$selected_slices = array_column($select_stmt->fetchAll(), 'unit', 'slice');
foreach ($selected_slices as $slice => $unit)
$id_set->add(new \Cassandra\Bigint($slice));
$session = self::_cassandraConnect(Config::config()::CASSANDRA_SERVERNAME, Config::config()::CASSANDRA_PORT, $this->_username, $this->_password, Config::config()::CASSANDRA_KEYSPACE);
$is_digital = $series->unit()->is_digital();
$cassandra_table = "{$this->_domain}" . (($is_digital) ? '_dig' : '');
$cass_select_stmt = $session->prepare("SELECT * FROM {$cassandra_table} WHERE (id IN ?) AND (timestamp >= ?) AND (timestamp <= ?);");
$result_page = $session->execute($cass_select_stmt,
array('arguments' => array($id_set, new \Cassandra\Varint($series->t0), new \Cassandra\Varint($series->t1))));
//ini_set('memory_limit', '-1'); // check this
//ini_set('max_execution_time', 300); // check this
$index = 0;
$response_json = array('series' => array());
$aggregator = ($this->internal()) ? null : Aggregator::new($aggr);
while($result_page) {
foreach ($result_page as $column) {
$slice = (int)$column['id'];
$entry = $column['entry'];
$time = (string)$column['timestamp']->value(); //bigint
if($is_digital){
$value_blob = $entry->get('value')->toBinaryString();
if(isset($_GET['type'])){
$value = Unpack::uInt64($value_blob);// blob
}else{
$value = Unpack::d64($value_blob);// blob
}
if($value === null)
$value = $value_blob; // TODO: remove this in the new API
} else {
$value = (double)$entry->get('value'); // double
}
$error = (int)$entry->get('error'); //tinyint
$conf = (int)$entry->get('confidence'); //tinyint
$x = (int)$entry->get('x'); //int
$y = (int)$entry->get('y'); //int
$z = (int)$entry->get('z'); //int
$d = (int)$entry->get('d'); //int
$gw = (int)$entry->get('gw'); //int (TO DO GET GATEWAY)
if ( $filter_sphere && !$series->contains_point($x, $y, $z) )
continue;
$smartdata = null;
switch ($series->version) {
case SmartData::STATIC_VERSION:
$smartdata = new StaticSmartData($series->unit,$value,$error,$conf,$x,$y,$z,$time,$d,$gw);
break;
case SmartData::MOBILE_VERSION:
$smartdata = new MobileSmartData($series->unit,$value,$error,$conf,$x,$y,$z,$time,$d,$gw, null);
break;
default:
continue 2;
break;
}
if($aggregator != null) {
$smartdata = $aggregator->aggregate($smartdata);
}
if($smartdata != null) {
if(is_array($smartdata)){
foreach ($smartdata as $key => $data) {
$response_json['series'][$index++] = $data->toArray();
if ($index >= Config::config()::POINTS_LIMIT) break;
}
} else {
$response_json['series'][$index++] = $smartdata->toArray();
if($this->internal()){
$response_json['series'][$index-1]['slice'] = $slice;
$response_json['series'][$index-1]['gw'] = $gw;
}
}
} else {
continue;
}
if ($index >= Config::config()::POINTS_LIMIT) break 2;
}
$result_page = $result_page->nextPage();
if(!$result_page && isset($aggregator) && $index < Config::config()::POINTS_LIMIT){
$smartdata = $aggregator->finish();
if($smartdata != null) {
$response_json['series'][$index++] = $smartdata->toArray();
}
}
}
$session->close();
usort($response_json['series'], function ($a, $b) {
$a_timestamp = gmp_init($a['timestamp']);
$b_timestamp = gmp_init($b['timestamp']);
return gmp_cmp($a_timestamp, $b_timestamp);
});
} catch (\Exception $e) {
Logger::exception($e);
$response_json = NULL;
} finally {
if (isset($session))
$session->close();
$conn = null;
}
return $response_json;
}
public function insertBatch(Series $series, SmartData ...$smart_data) {
if ($smart_data[0] instanceof StaticSmartData)
return $this->_insertStaticSmartDataBatch($series, ...$smart_data);
else
throw new BadRequestException("Error processing JSON request: unsupported SmartData version");
}
// Insert a static version of smartdata
private function _insertStaticSmartDataBatch(Series $series, StaticSmartData ...$smart_data) : bool {
$sucess = true;
$smart_data_count = count($smart_data);
$parameters = array(':version' => $series->version,
':unit' => $series->unit,
':x' => $series->x,
':y' => $series->y,
':z' => $series->z,
':r' => $series->r,
':t0' => $series->t0,
':t1' => $series->t1,
':domain' => $this->_domain);
try {
$conn = self::_mysqlConnect(Config::config()::MYSQL_SEVERNAME,
Config::config()::MYSQL_PORT,
Config::config()::MYSQL_DBNAME,
Config::config()::MYSQL_USERNAME,
Config::config()::MYSQL_PASSWORD);
$table = Config::config()::MySQL_Table($series->version);
$series_db = NULL;
$stmt_select = $conn->prepare("SELECT * FROM {$table} WHERE version = :version
AND unit = :unit AND x = :x AND y = :y AND z = :z AND r = :r
AND t0 = :t0 AND t1 = :t1 AND domain = :domain
ORDER BY id DESC LIMIT 1;");
$stmt_select->execute($parameters);
$series_db = $stmt_select->fetch(\PDO::FETCH_OBJ);
if ($series_db == NULL){// || (($series_db->count + $smart_data_count) >= Config\CASSANDRA_MAX_ROW_SIZE) ) {
throw new Exception\NoMatchingSeriesException('No matching series');
}else{
//Logger::debug("Inserting a Batch of StaticSmartData");
$is_digital = $series->unit()->is_digital();
$entry_type = \Cassandra\Type::userType(
'value', ($is_digital) ? \Cassandra\Type::blob() : \Cassandra\Type::double(),
'error', \Cassandra\Type::tinyint(),
'confidence', \Cassandra\Type::tinyint(),
'x', \Cassandra\Type::int(),
'y', \Cassandra\Type::int(),
'z', \Cassandra\Type::int(),
'd', \Cassandra\Type::bigint(),
'gw', \Cassandra\Type::bigint()
);
$cassandra_table = "{$this->_domain}" . (($is_digital) ? '_dig' : '');
/* change this */
// TODO: get this values from the smartdata object
$slice = new \Cassandra\Bigint($series_db->slice);
$error = new \Cassandra\Tinyint(0);
$confidence = new \Cassandra\Tinyint(0);
$gw = new \Cassandra\Bigint(-1);
/* change this */
$session = self::_cassandraConnect(Config::config()::CASSANDRA_SERVERNAME, Config::config()::CASSANDRA_PORT, $this->_username, $this->_password, Config::config()::CASSANDRA_KEYSPACE);
$insert_stmt = $session->prepare("INSERT INTO {$cassandra_table} (id, timestamp, entry) VALUES (?, ?, ?);");
$batch = new \Cassandra\BatchStatement(\Cassandra::BATCH_LOGGED);
$count = 0;
foreach ($smart_data as $key => $data) {
$batch->add($insert_stmt, array($slice,
new \Cassandra\Varint($data->time),
$entry_type->create(
'value', ($is_digital) ? new \Cassandra\Blob($data->value) : (double) $data->value,
'error', $error,
'confidence', $confidence,
'x', (int)$data->x,
'y', (int)$data->y,
'z', (int)$data->z,
'd', new \Cassandra\Bigint($data->dev),
'gw', $gw
)));
$count++;
if($count == 400){
//echo " Inserted\n";
$session->execute($batch);
$count = 0;
$batch = new \Cassandra\BatchStatement(\Cassandra::BATCH_LOGGED);
}
}
if($count > 0){
$session->execute($batch);
$count = 0;
}
$update_stmt = $conn->prepare("UPDATE {$table} SET count = count + :smart_data_count WHERE id = :id LIMIT 1;");
$update_stmt->execute(array('id' => $series_db->id, 'smart_data_count' => $smart_data_count));
}
} catch (\Exception $e) {
Logger::exception($e);
$sucess = false;
} finally {
if (isset($session))
$session->close();
$conn = null;
}
return $sucess;
}
private function _insertMobileSmartDataBatch(Series $series, MobileSmartData ...$smart_data) : bool {
throw new Exception\NotImplementedException("Batch insertion has not been implemented yet");
}
public function assignConfidence($t0, $t1, $max_time_diff, $query_filename="nn_input.csv", $confidence_filename="nn_output.csv", $train=false, $get=false) : bool {
return true;
}
public function assign_confidence($smart_data) {
$pushd = 'pushd '.Config::config()::CONFIDENCE_ASSIGNER;
$popd = 'popd';
$json = $smart_data->toJson();
//$return = shell_exec("{$pushd}; ./assign '{$json}'; {$popd};");
preg_match('#\{(.*?)\}#', $return??'', $match);
$confidence = $match[1] ?? $smart_data->confidence;
//Logger::debug('assigned confidence: '.$confidence);
return $smart_data->confidence = $confidence;
}
}
## Backend of API version 1.1 ##############################################################################
class Backend_V1_1 extends Backend_Common
{
public function create($to_be_created) {
switch($to_be_created->version) {
case SmartData::STATIC_VERSION:
self::debug_X("Creating Series : {$to_be_created}");
return $this->_createSeries($to_be_created);
case SmartData::MOBILE_VERSION:
self::debug_X("Creating Tracker : {$to_be_created}");
return $this->_createTracker($to_be_created);
default:
throw new BadRequestException("Error processing request: unsupported Series/Tracker version [{$to_be_attached->version}]");
}
}
public function attach($to_be_attached) {
switch($to_be_attached->version) {
case SmartData::STATIC_VERSION:
self::debug_X("Attaching Series : {$to_be_attached}");
return $this->_attachSeries($to_be_attached);
case SmartData::MOBILE_VERSION:
self::debug_X("Attaching Tracker : {$to_be_attached}");
return $this->_attachTracker($to_be_attached);
default:
throw new BadRequestException("Error processing request: unsupported Series/Tracker version [{$to_be_attached->version}]");
return null;
}
}
// Insert SmartData into series/tracker matched
public function insert(SmartData $smart_data) {
if ($smart_data instanceof StaticSmartData) {
self::debug_X("Inserting a Static SmartData : {$smart_data}");
return $this->_insertStaticSmartData($smart_data);
} else if ($smart_data instanceof MobileSmartData){
self::debug_X("Inserting a Mobile SmartData : {$smart_data}");
return $this->_insertMobileSmartData($smart_data);
} else
throw new BadRequestException("Error processing request: unsupported SmartData version");
}
public function insertBatch(...$batch) {
if ($batch[0] instanceof Series){
self::debug_X('Batching Series : ['.count($batch).']');
return $this->_insertStaticSmartDataBatch(...$batch);
} else if ($batch[0] instanceof Tracker){
self::debug_X('Batching Tracker : ['.count($batch).']');
throw new Exception\NotImplementedException("Batching Tracker has not been implemented yet");
//return $this->_insertMobileSmartDataBatch(...$batch);
} else
throw new BadRequestException("Error processing request: unsupported data version");
}
// Create a new series if not exist
private function _createSeries(Series $series) : bool {
$sucess = true;
$parameters = array(':version' => $series->version,
':unit' => $series->unit,
':x' => $series->x,
':y' => $series->y,
':z' => $series->z,
':r' => $series->r,
//':dev' => $series->dev, // TODO: The series doesn't has a dev
':t0' => $series->t0,
':t1' => $series->t1,
':workflow' => $series->workflow ?? 0,
':domain' => $this->_domain);
try {
$conn = self::_mysqlConnect(Config::config()::MYSQL_SEVERNAME, Config::config()::MYSQL_PORT, Config::config()::MYSQL_DBNAME, Config::config()::MYSQL_USERNAME, Config::config()::MYSQL_PASSWORD);
$table = Config::config()::MySQL_Table($series->version);
$stmt_select = $conn->prepare("SELECT * FROM {$table} WHERE
version = :version
AND unit = :unit
AND (SQRT(POW(x - :x, 2) + POW(y - :y, 2) + POW(z - :z, 2))) <= (r + :r)
AND ((:t0 >= t0 AND :t0 <= t1) OR (:t0 <= t0 AND :t1 >= t1) OR (:t1 >= t0 AND :t1 <= t1 ))
AND workflow = :workflow
AND domain = :domain;");
$series_set = $stmt_select->fetch(\PDO::FETCH_OBJ);
if ($series_set == NULL) {
self::debug_X('The Series did not exist before');
$stmt_insert = $conn->prepare("INSERT INTO {$table} VALUES (DEFAULT, :version, :unit, :x, :y, :z, :r, DEFAULT, :t0, :t1, :workflow, :domain, DEFAULT);");
$stmt_insert->execute($parameters);
} else {
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$rows_table = '`rows`';
foreach ($series_set as $series_aux) {
$dist = SQRT(POW($series_aux->x - $series->x, 2) + POW($series_aux->y - $series->y, 2) + POW($series_aux->z - $series->z, 2));
$t0 = ($series_aux->t0 <= $series->t0) ? $series_aux->t0 : $series->t0;
$t1 = ($series_aux->t1 >= $series->t1) ? $series_aux->t0 : $series->t1;
if ($series_aux->r >= ($dist + $series->r)) {
//new series is spatially contained by the already inserted one
$x = $series_aux->x;
$y = $series_aux->y;
$z = $series_aux->z;
$r = $series_aux->r;
} else if ($series->r >= ($dist + $series_aux->r)) {
//already inserted series is spatially contained by the new one
$x = $series->x;
$y = $series->y;
$z = $series->z;
$r = $series->r;
} else {
$r = ($series->r + $dist + $series_aux->r)
$x = ($series_aux->x + ($series_aux->x - $series->x) * ($r - $series_aux->r)) / $dist;
$y = ($series_aux->y + ($series_aux->y - $series->y) * ($r - $series_aux->r)) / $dist;
$z = ($series_aux->z + ($series_aux->z - $series->z) * ($r - $series_aux->r)) / $dist;
//http://answers.google.com/answers/threadview/id/342125.html
}
$parameters = array(':x' => $x,
':y' => $y,
':z' => $z,
':r' => $r,
':t0' => $t0,
':t1' => $t1);
if (isset($series->id)) {
$update_stmt = $conn->prepare("UPDATE {$table} SET x = :x, z = :z, r = :r, t0 = :t0, t1 = :t1 WHERE id = {$series->id};");
$update_stmt->execute($parameters);
$update_stmt = $conn->prepare("UPDATE {$rows_table} SET series_id = {$series->id} WHERE series_id = {$series_aux->id};");
$update_stmt->execute();
$update_stmt = $conn->prepare("DELETE FROM {$table} WHERE id = {$series_aux->id};");
$update_stmt->execute();
} else {
$update_stmt = $conn->prepare("UPDATE {$table} SET x = :x, z = :z, r = :r, t0 = :t0, t1 = :t1 WHERE id = {$series_aux->id};");
$update_stmt->execute($parameters);
$series->id = $series_aux->id;
}
$series->x = $x;
$series->y = $y;
$series->z = $z;
$series->r = $r;
$series->t0 = $t0;
$series->t1 = $t1;
}
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//self::debug_X($series);
}
} catch (\Exception $e) {
Logger::exception($e);
$sucess = false;
} finally {
$conn = null;
}
return $sucess;
}
// Create a new tracker if not exist
private function _createTracker(Series $tracker) : bool {
$sucess = true;
$parameters = array(':version' => $tracker->version,
':unit' => $tracker->unit,
':signature' => 0, // TODO: include signature
':t0' => $tracker->t0,
':t1' => $tracker->t1,
':dev' => $tracker->dev,
':workflow' => $tracker->workflow ?? 0,
':domain' => $this->_domain);
try {
$conn = self::_mysqlConnect(Config::config()::MYSQL_SEVERNAME, Config::config()::MYSQL_PORT, Config::config()::MYSQL_DBNAME, Config::config()::MYSQL_USERNAME, Config::config()::MYSQL_PASSWORD);
$table = Config::config()::MySQL_Table($tracker->version);
$stmt_select = $conn->prepare("SELECT * FROM {$table} WHERE
version = :version
AND unit = :unit
AND dev = :dev
AND t0 = :t0
AND t1 = :t1
AND signature = :signature
AND workflow = :workflow
AND domain = :domain
ORDER BY count ASC LIMIT 1;");
$stmt_select->execute($parameters);
$selected_tracker = $stmt_select->fetch(\PDO::FETCH_OBJ);
if ($selected_tracker == NULL) {
self::debug_X('The Tracker did not exist before');
$stmt_insert = $conn->prepare("INSERT INTO {$table} VALUES (DEFAULT, :version, :unit, :dev, :t0, :t1, :signature, DEFAULT, :workflow, :domain, (SELECT counter(:domain)), DEFAULT);");
$stmt_insert->execute($parameters);
} else {
//self::debug_X($selected_tracker);
}
} catch (\Exception $e) {
Logger::exception($e);
$sucess = false;
} finally {
$conn = null;
}
return $sucess;
}
// Create a new series if there is not one that contains it
private function _attachSeries(Series $series) : bool {
$sucess = true;
$parameters = array(':version' => $series->version,
':unit' => $series->unit,
':x' => $series->x,
':y' => $series->y,
':z' => $series->z,
':r' => $series->r,
//':dev' => $series->dev, // TODO: The series doesn't has a dev
':t0' => $series->t0,
':t1' => $series->t1,
':workflow' => $series->workflow ?? 0,
':domain' => $this->_domain);
try {
$conn = self::_mysqlConnect(Config::config()::MYSQL_SEVERNAME, Config::config()::MYSQL_PORT, Config::config()::MYSQL_DBNAME, Config::config()::MYSQL_USERNAME, Config::config()::MYSQL_PASSWORD);
$table = Config::config()::MySQL_Table($series->version);
$stmt_select = $conn->prepare("SELECT * FROM {$table} WHERE version = :version
AND unit = :unit
AND r >= (SQRT(POW(x - :x, 2) + POW(y - :y, 2) + POW(z - :z, 2)) + :r)
AND t0 <= :t0 AND t1 >= :t1
AND workflow = :workflow
AND domain = :domain
ORDER BY r ASC LIMIT 1;");
$stmt_select->execute($parameters);
$series = $stmt_select->fetch(\PDO::FETCH_OBJ);
if ($series == NULL) {
self::debug_X('The Series did not exist before');
$stmt_insert = $conn->prepare("INSERT INTO {$table} VALUES (DEFAULT, :version, :unit, :x, :y, :z, :r, DEFAULT, :t0, :t1, :workflow, :domain, DEFAULT);");
$stmt_insert->execute($parameters);
} else {
//self::debug_X($series);
}
} catch (\Exception $e) {
Logger::exception($e);
$sucess = false;
} finally {
$conn = null;
}
return $sucess;
}
// Create a new series if there is not one that contains it
private function _attachTracker(Series $tracker) : bool {
$sucess = true;
$parameters = array(':version' => $tracker->version,
':unit' => $tracker->unit,
':signature' => 0, // TODO: include signature
':t0' => $tracker->t0,
':t1' => $tracker->t1,
':dev' => $tracker->dev,
':workflow' => $tracker->workflow ?? 0,
':domain' => $this->_domain);
try {
$conn = self::_mysqlConnect(Config::config()::MYSQL_SEVERNAME, Config::config()::MYSQL_PORT, Config::config()::MYSQL_DBNAME, Config::config()::MYSQL_USERNAME, Config::config()::MYSQL_PASSWORD);
$table = Config::config()::MySQL_Table($tracker->version);
$stmt_select = $conn->prepare("SELECT * FROM {$table} WHERE
version = :version
AND unit = :unit
AND dev = :dev
AND t0 <= :t0 AND t1 >= :t1
AND signature = :signature
AND workflow = :workflow
AND domain = :domain
ORDER BY count ASC LIMIT 1;");
$stmt_select->execute($parameters);
$selected_tracker = $stmt_select->fetch(\PDO::FETCH_OBJ);
if ($selected_tracker == NULL) {
self::debug_X('The Tracker did not exist before');
$stmt_insert = $conn->prepare("INSERT INTO {$table} VALUES (DEFAULT, :version, :unit, :dev, :t0, :t1, :signature, DEFAULT, :workflow, :domain, (SELECT counter(:domain)), DEFAULT);");
$stmt_insert->execute($parameters);
} else {
//self::debug_X($selected_tracker);
}
} catch (\Exception $e) {
Logger::exception($e);
$sucess = false;
} finally {
$conn = null;
}
return $sucess;
}
// Insert a static version of smartdata
private function _insertStaticSmartData(StaticSmartData $smart_data) : bool {
$sucess = true;
$parameters = array(':unit' => $smart_data->unit,
':x' => $smart_data->x,
':y' => $smart_data->y,
':z' => $smart_data->z,
//':dev' => $smart_data->dev, // TODO: The series doesn't has a dev
':time' => $smart_data->time,
':domain' => $this->_domain);
$is_digital = $smart_data->unit()->is_digital();
try {
Logger::time_elapsed(true);
$conn = self::_mysqlConnect(Config::config()::MYSQL_SEVERNAME, Config::config()::MYSQL_PORT, Config::config()::MYSQL_DBNAME, Config::config()::MYSQL_USERNAME, Config::config()::MYSQL_PASSWORD);
$table = Config::config()::MySQL_Table($smart_data->version);
$stmt_select = $conn->prepare("SELECT * FROM {$table} WHERE unit = :unit AND (SQRT(POW(x - :x, 2) + POW(y - :y, 2) + POW(z - :z, 2))) <= r AND :time >= t0 AND :time <= t1 AND domain = :domain;");
$stmt_select->execute($parameters);
$series_set = $stmt_select->fetchAll(\PDO::FETCH_OBJ);
Logger::time_elapsed();
if ($series_set == NULL) {
throw new Exception\NoMatchingSeriesException('No matching series');
} else {
// the series exists
$rows_table = '`rows`'; // TODO: move to Config file (row table name)
$count_limit = Config::config()::CASSANDRA_MAX_ROW_SIZE;
foreach ($series_set as $series) {
$series->row = NULL;
$first = true;
do {
$stmt_select_row = $conn->prepare("SELECT * FROM {$rows_table} WHERE series_id in (:series_id) AND x = :x AND y = :y AND z = :z AND dev = :dev AND count < {$count_limit} LIMIT 1;");
$parameters_row = array(':series_id' => $series->id,
':x' => $smart_data->x,
':y' => $smart_data->y,
':z' => $smart_data->z,
':dev' => $smart_data->dev);
$stmt_select_row->execute($parameters_row);
$series->row = $stmt_select_row->fetch(\PDO::FETCH_OBJ);
if ($first && $series->row==NULL) {
self::debug_X('There were no rows before');
$stmt_insert_row = $conn->prepare("INSERT INTO {$rows_table} VALUES (DEFAULT, :x, :y, :z, :dev, DEFAULT, (SELECT counter(:domain)), :series_id, DEFAULT);");
$stmt_insert_row->execute(array_merge($parameters_row, array(':domain' => $this->_domain)));
$first = false;
} else {
break;
}
} while (true);
}
}
Logger::time_elapsed();
$entry_type = \Cassandra\Type::userType(
'value', ($is_digital) ? \Cassandra\Type::blob() : \Cassandra\Type::double(),
'error', \Cassandra\Type::tinyint(),
'confidence', \Cassandra\Type::tinyint(),
'gw', \Cassandra\Type::bigint()
);
foreach ($series_set as $series) {
self::debug_X('Inserting StaticSmartData on series ['.$series->id.'] row ['.$series->row->row_id.']');
$_smart_data = null;
if($series->workflow ?? false){
self::debug_X('Enter workflow');
$_smart_data = clone $smart_data;
$_smart_data = $this->_workflow_input($_smart_data, $series->workflow);
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}else{
$_smart_data = $smart_data;
}
if($_smart_data === null)
continue;
$arguments = array(
new \Cassandra\Bigint($series->row->row_id),
new \Cassandra\Varint($_smart_data->time),
$entry_type->create(
'value', ($is_digital) ? new \Cassandra\Blob($_smart_data->value) : (double) $_smart_data->value,
'error', new \Cassandra\Tinyint($_smart_data->error),
'confidence', new \Cassandra\Tinyint($_smart_data->confidence),
'gw', new \Cassandra\Bigint($this->_gw_id)
)
);
// TODO: alter the cassandra table's name to Config file
$cassandra_table = $this->_domain.'_v1_1_';
$cassandra_table .= $is_digital ? 'digital' : 'si';
// -----
$session = self::_cassandraConnect(Config::config()::CASSANDRA_SERVERNAME, Config::config()::CASSANDRA_PORT, $this->_username, $this->_password, Config::config()::CASSANDRA_KEYSPACE);
$insert_stmt = $session->prepare("INSERT INTO {$cassandra_table} (id, timestamp, entry) VALUES (?, ?, ?);");
$session->execute($insert_stmt, array('arguments' => $arguments));
$update_stmt = $conn->prepare("UPDATE {$rows_table} SET count = count + 1 WHERE id = :id LIMIT 1;");
$update_stmt->execute(array('id' => $series->row->id));
}
Logger::time_elapsed();
} catch (\Exception $e) {
Logger::exception($e);
$sucess = false;
} finally {
if (isset($session))
$session->close();
$conn = null;
}
return $sucess;
}
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private function _process_exists($proc_id) {
$exists= false;
exec("ps -A | grep -i $proc_id | grep -v grep", $pids);
if (!empty($pids)) {
$exists = true;
}
return ($exists || file_exists("/proc/{$proc_id}"));
}
private function _initialize_daemon($workflow) {
$_root = __DIR__;
//self::debug_X("root at: {$_root}");
if (file_exists("{$_root}/../workflow/{$this->_domain}/{$workflow}_daemon")) {
$alive = false;
try {
if(file_exists("{$_root}/../workflow/{$this->_domain}/{$workflow}_pid")) {
$pid_file = fopen("{$_root}/../workflow/{$this->_domain}/{$workflow}_pid", "r");
if($pid_file) {
$pid = fgets($pid_file);
fclose($pid_file);
$alive = $this->_process_exists($pid) || $this->_process_exists("{$workflow}_daemon"); //maybe this string check is not valid
}
}
} catch (Exception $e) {
$alive = false;
}
if (!($alive)) {
if (file_exists("{$_root}/../workflow/{$this->_domain}/{$workflow}_error.txt"))
unlink("{$_root}/../workflow/{$this->_domain}/{$workflow}_error.txt");
if (file_exists("{$_root}/../workflow/{$this->_domain}/{$workflow}_pid"))
unlink("{$_root}/../workflow/{$this->_domain}/{$workflow}_pid");
if (file_exists("{$_root}/../workflow/{$this->_domain}/{$workflow}_input"))
unlink("{$_root}/../workflow/{$this->_domain}/{$workflow}_input");
if (file_exists("{$_root}/../workflow/{$this->_domain}/{$workflow}_output"))
unlink("{$_root}/../workflow/{$this->_domain}/{$workflow}_output");
$descriptorspec = array(
0 => array("pipe", "r"), // stdin is a pipe that the child will read from
1 => array("pipe", "w"), // stdout is a pipe that the child will write to
2 => array("file", "{$_root}/../workflow/{$this->_domain}/{$workflow}_error.txt", "a") // stderr is a file to write to
);
$path = "{$_root}/../workflow/{$this->_domain}";
$pid = proc_open("./{$workflow}_daemon $> {$workflow}_results.log", $descriptorspec, $pipes, $path);
$timeout = 100000; //what is the best value? we can use a timeout in seconds also
while (!(file_exists("{$_root}/../workflow/{$this->_domain}/{$workflow}_pid")) && $timeout >= 0)
$timeout--;
if($timeout < 0) {
self::debug_X("Fail to initialize daemon for workflow {$this->_domain}/{$workflow}");
}
}
} else {
self::debug_X("No daemon found for {$this->_domain}/{$workflow}");
}
}
private function _notify(\stdClass $json) {
if(isset($json->notify)) {
$notification = "Domain: {$this->_domain}. Data irregularity.";
if(isset($json->notify->description)) {
$notification .= " Description: {$json->notify->description}.";
}
if(isset($json->notify->severity)) {
//threshold can be either defined by the workflow or by a standard value (100% in this case)
// isset($json->notify->severity_threshold)
$notification .= " Severity level: {$json->notify->severity}.";
if ($json->notify->severity > 100) {
//send mail or message bus
}
}
//log notification
self::debug_X($notification);
}
}
private function _workflow_input($smart_data, $wf) {
$_wf = "in{$wf}";
$pushd = "pushd {$_root}/../workflow/{$this->_domain} > /dev/null";
$this->_initialize_daemon($_wf);
$json = "{\"smartdata\":" . $smart_data->toJson() . "}";
$return = shell_exec("{$pushd}; ./{$_wf} '{$json}'; {$popd};");
$json = json_decode($return, false, 512, JSON_BIGINT_AS_STRING);
if (json_last_error() === JSON_ERROR_NONE){
$smart_data = SmartData::fromJson($json->smartdata);
}else{
throw new Exception\InternalException('Error while processing workflow!');
}
private function _workflow_output($json, $wf) {
$_root = __DIR__;
$_wf = "out{$wf}";
$pushd = "pushd {$_root}/../workflow/{$this->_domain} > /dev/null";
$popd = 'popd > /dev/null';
$this->_initialize_daemon($_wf);
$str_json = json_encode($json);
$input = fopen("{$_root}/../workflow/{$this->_domain}/{$_wf}_input", "w");
fwrite($input, "$str_json\n");
fclose($input);
$return = shell_exec("{$pushd}; ./{$_wf}; {$popd};");
$json = json_decode($return, false, 512, JSON_BIGINT_AS_STRING);
if (json_last_error() !== JSON_ERROR_NONE){
throw new Exception\InternalException('Error while processing workflow!');
}
return $json;
}
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// Insert a mobile version of smartdata
private function _insertMobileSmartData(MobileSmartData $smart_data) : bool {
// TODO: check if it is working fine
$sucess = true;
$parameters = array(':version' => $smart_data->version,
':unit' => $smart_data->unit,
':signature' => $smart_data->signature,
':time' => $smart_data->time,
':dev' => $smart_data->dev,
':domain' => $this->_domain);
$is_digital = $smart_data->unit()->is_digital();
try {
$conn = self::_mysqlConnect(Config::config()::MYSQL_SEVERNAME, Config::config()::MYSQL_PORT, Config::config()::MYSQL_DBNAME, Config::config()::MYSQL_USERNAME, Config::config()::MYSQL_PASSWORD);
$table_trackers = Config::config()::MySQL_Table($smart_data->version);
$tracker_set = NULL;
$first = true;
do {
$sql="SELECT t.* FROM (SELECT *, min(count) as min FROM trackers WHERE version = :version AND unit = :unit AND signature = :signature AND :time >= t0 AND :time <= t1 AND dev = :dev AND domain = :domain GROUP BY version, unit, dev, t0, t1, signature, workflow, domain) as x inner join trackers as t on t.version = x.version AND t.unit = x.unit AND t.dev = x.dev AND t.t0 = x.t0 AND t.t1 = x.t1 AND t.signature = x.signature AND t.workflow = x.workflow AND t.domain = x.domain AND t.count = x.min GROUP BY version, unit, dev, t0, t1, signature, workflow, domain;";
$stmt_select = $conn->prepare($sql);
$stmt_select->execute($parameters);
$tracker_set = $stmt_select->fetchAll(\PDO::FETCH_OBJ);
if ($tracker_set == NULL) {
// TODO: change do NoMatchingTrackerException
throw new Exception\NoMatchingSeriesException('No matching tracker');
} else {
if ($first){
foreach ($tracker_set as $tracker) {
if($tracker->count>=Config::config()::CASSANDRA_MAX_ROW_SIZE){
$stmt_insert = $conn->prepare("INSERT INTO {$table_trackers} VALUES (DEFAULT, :version, :unit, :dev, :t0, :t1, :signature, DEFAULT, :workflow, :domain, (SELECT counter(:domain)), DEFAULT);");
$stmt_insert->execute(array(':version' => $tracker->version,
':unit' => $tracker->unit,
':signature' => $tracker->signature,
':t0' => $tracker->t0,
':t1' => $tracker->t1,
':dev' => $tracker->dev,
':workflow' => $tracker->workflow,
':domain' => $this->_domain));
//$this->create(new Series($series->version, $series->unit, $series->x, $series->y, $series->z, $series->r, $series->t0, $series->t1));
//Logger::debug('creating new Tracker', true);
}
}
$first = false;
} else {
break;
}
}
} while (true);
$entry_type = \Cassandra\Type::userType(
'value', ($is_digital) ? \Cassandra\Type::blob() : \Cassandra\Type::double(),
'error', \Cassandra\Type::tinyint(),
'confidence', \Cassandra\Type::tinyint(),
'x', \Cassandra\Type::int(),
'y', \Cassandra\Type::int(),
'z', \Cassandra\Type::int(),
'gw', \Cassandra\Type::bigint()
);
foreach ($tracker_set as $tracker) {
self::debug_X('Inserting MobileSmartData on Tracker ['.$tracker->id.'] row ['.$tracker->row_id.']');
// TODO: alter to workflow
//if($tracker->workflow != 0)
// Logger::debug('Workflow execution', true);
$arguments = array(
new \Cassandra\Bigint($tracker->row_id),
new \Cassandra\Varint($smart_data->time),
$entry_type->create(
'value', ($is_digital) ? new \Cassandra\Blob($smart_data->value) : (double) $smart_data->value,
'error', new \Cassandra\Tinyint($smart_data->error),
'confidence', new \Cassandra\Tinyint($smart_data->confidence),
'x', (int)$smart_data->x,
'y', (int)$smart_data->y,
'z', (int)$smart_data->z,
'gw', new \Cassandra\Bigint($this->_gw_id)
)
);
// TODO: alter the cassandra table's name to Config file
$cassandra_table = $this->_domain.'_v1_2_';
$cassandra_table .= $is_digital ? 'digital' : 'si';
$session = self::_cassandraConnect(Config::config()::CASSANDRA_SERVERNAME, Config::config()::CASSANDRA_PORT, $this->_username, $this->_password, Config::config()::CASSANDRA_KEYSPACE);
$insert_stmt = $session->prepare("INSERT INTO {$cassandra_table} (id, timestamp, entry) VALUES (?, ?, ?);");
$session->execute($insert_stmt, array('arguments' => $arguments));
$update_stmt = $conn->prepare("UPDATE {$table_trackers} SET count = count + 1 WHERE id = :id LIMIT 1;");
$update_stmt->execute(array('id' => $tracker->id));
}
} catch (\Exception $e) {
Logger::exception($e);
$sucess = false;
} finally {
if (isset($session))
$session->close();
$conn = null;
}
return $sucess;
}
private function _insertStaticSmartDataBatch(Series $series, StaticSmartData ...$smart_data) : bool {
if($series->r != 0)
throw new Exception\NoMatchingSeriesException('Invalid request'); // TODO: change this exception type
$sucess = true;
$smart_data_count = count($smart_data);
$parameters = array(':version' => $series->version,
':unit' => $series->unit,
':x' => $series->x,
':y' => $series->y,
':z' => $series->z,
':r' => $series->r,
//':dev' => $series->dev, // TODO: The series doesn't has a dev
':t0' => $series->t0,
':t1' => $series->t1,
':workflow' => $series->workflow ?? 0,
':domain' => $this->_domain);
try {
$conn = self::_mysqlConnect(Config::config()::MYSQL_SEVERNAME, Config::config()::MYSQL_PORT, Config::config()::MYSQL_DBNAME, Config::config()::MYSQL_USERNAME, Config::config()::MYSQL_PASSWORD);
$table = Config::config()::MySQL_Table($series->version);
$series_db = NULL;
$stmt_select = $conn->prepare("SELECT * FROM {$table} WHERE version = :version AND unit = :unit AND x = :x AND y = :y AND z = :z AND r = :r AND t0 = :t0 AND t1 = :t1 AND workflow = :workflow AND domain = :domain LIMIT 1;");
$stmt_select->execute($parameters);
$series_db = $stmt_select->fetch(\PDO::FETCH_OBJ);
if ($series_db == NULL){// || (($series_db->count + $smart_data_count) >= Config\CASSANDRA_MAX_ROW_SIZE) ) {
throw new Exception\NoMatchingSeriesException('No matching series');
}else{
$rows_table = '`rows`'; // TODO: move to Config file (row table name)
$count_limit = Config::config()::CASSANDRA_MAX_ROW_SIZE;
$series_db->row = NULL;
$first = true;
do {
$stmt_select_row = $conn->prepare("SELECT * FROM {$rows_table} WHERE series_id = :series_id AND x = :x AND y = :y AND z = :z AND dev = :dev AND count < {$count_limit} LIMIT 1;");
$parameters_row = array(':series_id' => $series_db->id,
':x' => $series_db->x,
':y' => $series_db->y,
':z' => $series_db->z,
':dev' => $series->dev); // TODO: check this (remove the dev from series)
$stmt_select_row->execute($parameters_row);
$series_db->row = $stmt_select_row->fetch(\PDO::FETCH_OBJ);
if ($first && $series_db->row==NULL) {
self::debug_X('There were no rows before');
$stmt_insert_row = $conn->prepare("INSERT INTO {$rows_table} VALUES (DEFAULT, :x, :y, :z, :dev, DEFAULT, (SELECT counter(:domain)), :series_id, DEFAULT);");
$stmt_insert_row->execute(array_merge($parameters_row, array(':domain' => $this->_domain)));
$first = false;
} else {
break;
}
} while (true);
self::debug_X('Inserting StaticSmartDataBatch on Series ['.$series_db->id.'] row['.$series_db->row->id.']');
$is_digital = $series->unit()->is_digital();
$entry_type = \Cassandra\Type::userType(
'value', ($is_digital) ? \Cassandra\Type::blob() : \Cassandra\Type::double(),
'error', \Cassandra\Type::tinyint(),
'confidence', \Cassandra\Type::tinyint(),
'gw', \Cassandra\Type::bigint()
);
// TODO: alter the cassandra table's name to Config file
$cassandra_table = $this->_domain.'_v1_1_';
$cassandra_table .= $is_digital ? 'digital' : 'si';
// -----
// change this
// TODO: get this values from the smartdata object
$row_id = new \Cassandra\Bigint($series_db->row->row_id);
$error = new \Cassandra\Tinyint(0);
$confidence = new \Cassandra\Tinyint(0);
$gw = new \Cassandra\Bigint($this->_gw_id);