protected function pollDataFromStation($station)
{
$this->_logger->log(__METHOD__, array('station' => $station->station_id_code));
$matches = array();
$source = $station->communication_esp_ip . ':' . $station->communication_esp_port;
// Check IP_ADDRESS|DOMAIN_NAME:PORT pattern
if (preg_match('/^([0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}|[a-zA-Z0-9\\-\\.]+\\.[a-zA-Z]+)\\:([0-9]{1,5})$/', $source, $matches)) {
$this->_logger->log(__METHOD__ . ': Matched.');
$message = $this->pollData($matches[1], $matches[2], $this->generatePollCommand($station));
if ($message != false) {
ListenerLog::addNew($message, null, false, 'poller', $station->station_id);
}
}
}
protected function listenDLTorrent($cycle = 1)
{
$this->_logger->log(__METHOD__, array('cycle' => $cycle));
$this->_connector->setParams(array('timeout' => 60));
ListenerProcess::addComment($this->listener->listener_id, 'comment', 'Opening COM connection');
$messages = null;
$process = $this;
$logger = $process->_logger;
$this->_connector->onReceiveMessage = function ($message) use(&$process, &$logger) {
$logger->log(__METHOD__ . ' New message', array('message' => $message, 'listener_id' => $process->listener->listener_id, 'overwrite' => $process->settings->overwrite_data_on_listening));
$messageId = ListenerLog::addNew($message, $process->listener->listener_id, $process->settings->overwrite_data_on_listening, 'datalogger');
ListenerProcess::addComment($process->listener->listener_id, 'comment', 'got msg #' . $messageId);
};
$result = $this->_connector->readData($messages);
$this->_logger->log(__METHOD__ . ' Complete listen datalogger.', array('cycle' => $cycle, 'result' => $result));
}
protected function listen()
{
$this->_logger->log(__CLASS__ . ' ' . __METHOD__ . ' Start listen.', array('source' => $this->source));
$messages = null;
$process = $this;
$logger = $process->_logger;
$this->_connector->onReceiveMessage = function ($message, $station_id, $source_info) use(&$process, &$logger) {
$logger->log(__CLASS__ . ' ' . __METHOD__ . ' New message', array('message' => $message, 'listener_id' => $process->listener->listener_id, 'overwrite' => $process->settings->overwrite_data_on_listening));
$messageId = ListenerLog::addNew($message, $process->listener->listener_id, $process->settings->overwrite_data_on_listening, 'server', 0, $source_info);
ListenerProcess::addComment($process->listener->listener_id, 'comment', 'got msg #' . $messageId);
};
$this->_connector->readData($messages);
$this->_logger->log(__CLASS__ . ' ' . __METHOD__ . ' Complete listen.', array('source' => $this->source));
}
protected function listenESPTorrent($attempt = 0)
{
$this->_logger->log(__CLASS__ . ' ' . __METHOD__, array('attempt' => $attempt));
$timeout = 10;
if ($attempt == 0) {
ListenerProcess::addComment($this->listener->listener_id, 'comment', 'trying to connect with ' . $this->source);
} else {
ListenerProcess::addComment($this->listener->listener_id, 'comment', 'Trying to reconnect with ' . $this->source . '; attempt #' . $attempt . '/3');
}
$source_parts = explode(':', $this->source);
// creates socket connection with IP:port
$fp = @fsockopen($source_parts[0], $source_parts[1], $errno, $errstr, $timeout);
if ($fp !== false) {
$attempt = 0;
ListenerProcess::addComment($this->listener->listener_id, 'connected', 'successfully');
$message = '';
while (!feof($fp)) {
$res = fwrite($fp, ' ', 2);
//print "\n try write: ".$res;
$line = fread($fp, 8192);
$line = trim($line);
$occurances_dl = strpos($line, '$');
if ($line != '') {
$message .= $line;
if ($occurances_dl !== false) {
if ($this->synchronization->isMaster()) {
$res = ListenerLog::addNew($message, $this->listener->listener_id, $this->settings->overwrite_data_on_listening, 'datalogger');
} else {
// slave
//$res = ListenerLog::addNew($message, $this->listener->listener_id, $this->settings->overwrite_data_on_listening, 'datalogger');
}
ListenerProcess::addComment($this->listener->listener_id, 'comment', 'got msg #' . $res);
$message = '';
}
}
}
ListenerProcess::addComment($this->listener->listener_id, 'stopped', 'can not receive data anymore - ESP is unreachable');
fclose($fp);
} else {
ListenerProcess::addComment($this->listener->listener_id, 'cannot_connect', '[' . $errno . '] ' . $errstr);
}
if ($attempt < 3) {
$attempt++;
sleep(3);
} else {
ListenerProcess::addComment($this->listener->listener_id, 'comment', 'Three attempts to reconnect failed. Waiting for 2 minutes before trying to reconnect.');
sleep(120);
$attempt = 0;
}
return $this->listenESPTorrent($attempt);
}
public function process($path)
{
if (!file_exists($path)) {
throw new Exception('Can\'t find file ' . $path);
}
$pathinfo = pathinfo($path);
$base_filename = $pathinfo['basename'];
$xml_content = file_get_contents($path);
if (!strlen($xml_content)) {
throw new Exception($base_filename . " is empty");
}
libxml_use_internal_errors(true);
$sxe = simplexml_load_string($xml_content);
$error_str = "";
if ($sxe === false) {
foreach (libxml_get_errors() as $error) {
$error_str .= "\n" . $error->message;
}
throw new Exception($error_str);
}
// XML must contain 1 RUNWAY tag
if (count($sxe->RUNWAY) > 1) {
throw new Exception('XML ' . $base_filename . ' contains ' . count($sxe->RUNWAY) . ' RUNWAY tags');
}
if (count($sxe->RUNWAY) == 0) {
throw new Exception('XML ' . $base_filename . ' doesn\'t contain RUNWAY tags');
}
// RUNWAY's "NAME" attribute must be "08/26"
if ($sxe->RUNWAY['NAME'] != '08/26') {
throw new Exception('XML ' . $base_filename . ' RUNWAY name = "' . $sxe->RUNWAY['NAME'] . '", "08/26" was expected');
}
// RUNWAY must contain at least 1 ZONE tag
if (count($sxe->RUNWAY->ZONE) == 0) {
throw new Exception('XML ' . $base_filename . ' doesn\'t contain ZONE tags');
}
// XML must contain "UNITS" tag
if (!isset($sxe->UNITS)) {
throw new Exception('XML ' . $base_filename . ' doesn\'t contain UNITS section');
}
$str = '';
$possible_units = array('WIND' => 'kt', 'VISBILITY' => 'meters', 'RVR' => 'meters', 'ALTIMETER' => 'hpa');
foreach ($possible_units as $key => $value) {
if (!isset($sxe->UNITS->{$key})) {
$str .= ($str ? '; ' : '') . ' UNITS[' . $key . '] is missed';
} else {
if ($sxe->UNITS->{$key} != $value) {
$str .= ($str ? '; ' : '') . ' unknown metric "' . $sxe->UNITS->{$key} . '" in UNITS[' . $key . ']';
}
}
}
if ($str) {
throw new Exception($str);
}
$result = array();
$messages = array();
for ($key = 0; $key < count($sxe->RUNWAY->ZONE); $key++) {
// Get's Station ID
if ($sxe->RUNWAY->ZONE[$key]['NAME'] == '08') {
$messages[$key]['station_id_code'] = 'AWS08';
} else {
if ($sxe->RUNWAY->ZONE[$key]['NAME'] == '26') {
$messages[$key]['station_id_code'] = 'AWS26';
} else {
continue;
}
}
//Gets sensor's data from tags:
// WIND SPEED
if (isset($sxe->RUNWAY->ZONE[$key]->WSPD_5SEC)) {
$messages[$key]['sensors']['WindSpeed'][0]['wind_speed_1'] = (string) $sxe->RUNWAY->ZONE[$key]->WSPD_5SEC;
}
if (isset($sxe->RUNWAY->ZONE[$key]->WSPD_2MIN)) {
$messages[$key]['sensors']['WindSpeed'][0]['wind_speed_2'] = (string) $sxe->RUNWAY->ZONE[$key]->WSPD_2MIN;
}
// WIND DIRECTION
if (isset($sxe->RUNWAY->ZONE[$key]->WDIR_5SEC)) {
$messages[$key]['sensors']['WindDirection'][0]['wind_direction_1'] = (string) $sxe->RUNWAY->ZONE[$key]->WDIR_5SEC;
}
if (isset($sxe->RUNWAY->ZONE[$key]->WDIR_2MIN)) {
$messages[$key]['sensors']['WindDirection'][0]['wind_direction_2'] = (string) $sxe->RUNWAY->ZONE[$key]->WDIR_2MIN;
}
// TEMPERATURE
if (isset($sxe->RUNWAY->ZONE[$key]->TEMP_5MIN)) {
$messages[$key]['sensors']['Temperature'][0]['temperature'] = (string) $sxe->RUNWAY->ZONE[$key]->TEMP_5MIN;
}
// HUMIDITY
if (isset($sxe->RUNWAY->ZONE[$key]->HUM_5MIN)) {
$messages[$key]['sensors']['Humidity'][0]['humidity'] = (string) $sxe->RUNWAY->ZONE[$key]->HUM_5MIN;
}
// PRESSURE
if (isset($sxe->RUNWAY->ZONE[$key]->PRESSURE1)) {
$messages[$key]['sensors']['Pressure'][0]['pressure'] = (string) $sxe->RUNWAY->ZONE[$key]->PRESSURE1;
}
if (isset($sxe->RUNWAY->ZONE[$key]->PRESSURE2)) {
$messages[$key]['sensors']['Pressure'][1]['pressure'] = (string) $sxe->RUNWAY->ZONE[$key]->PRESSURE2;
}
if (isset($sxe->RUNWAY->ZONE[$key]->PRESSURE3)) {
$messages[$key]['sensors']['Pressure'][2]['pressure'] = (string) $sxe->RUNWAY->ZONE[$key]->PRESSURE3;
}
// CLOUD
if (isset($sxe->RUNWAY->ZONE[$key]->CLOUDRANGE)) {
$messages[$key]['sensors']['CloudHeightAWS'][0]['cloud_measuring_range'] = (string) $sxe->RUNWAY->ZONE[$key]->CLOUDRANGE;
}
if (isset($sxe->RUNWAY->ZONE[$key]->CLOUDVV)) {
$messages[$key]['sensors']['CloudHeightAWS'][0]['cloud_vertical_visibility'] = (string) $sxe->RUNWAY->ZONE[$key]->CLOUDVV;
}
if (isset($sxe->RUNWAY->ZONE[$key]->CLOUDH1)) {
$messages[$key]['sensors']['CloudHeightAWS'][0]['cloud_height_height_1'] = (string) $sxe->RUNWAY->ZONE[$key]->CLOUDH1;
}
if (isset($sxe->RUNWAY->ZONE[$key]->CLOUDH2)) {
$messages[$key]['sensors']['CloudHeightAWS'][0]['cloud_height_height_2'] = (string) $sxe->RUNWAY->ZONE[$key]->CLOUDH2;
}
if (isset($sxe->RUNWAY->ZONE[$key]->CLOUDH3)) {
$messages[$key]['sensors']['CloudHeightAWS'][0]['cloud_height_height_3'] = (string) $sxe->RUNWAY->ZONE[$key]->CLOUDH3;
}
if (isset($sxe->RUNWAY->ZONE[$key]->CLOUDD1)) {
$messages[$key]['sensors']['CloudHeightAWS'][0]['cloud_height_depth_1'] = (string) $sxe->RUNWAY->ZONE[$key]->CLOUDD1;
}
if (isset($sxe->RUNWAY->ZONE[$key]->CLOUDD2)) {
$messages[$key]['sensors']['CloudHeightAWS'][0]['cloud_height_depth_2'] = (string) $sxe->RUNWAY->ZONE[$key]->CLOUDD2;
}
if (isset($sxe->RUNWAY->ZONE[$key]->CLOUDD3)) {
$messages[$key]['sensors']['CloudHeightAWS'][0]['cloud_height_depth_3'] = (string) $sxe->RUNWAY->ZONE[$key]->CLOUDD3;
}
// VISIBILITY
$vis = (string) $sxe->RUNWAY->ZONE[$key]->EXC;
if (isset($sxe->RUNWAY->ZONE[$key]->EXC) && is_numeric($vis) && $vis != 0) {
//P = (1/σ) x ln (1/0.05)
//where ln is the log to base e or the natural logarithm. σ is the extinction cooefficient.
//This number will be in km, so we will need to multiply by 1000.
$messages[$key]['sensors']['VisibilityAWS'][0]['visibility_1'] = 1 / $vis * log(20) * 1000;
}
// SOLAR
if (isset($sxe->RUNWAY->ZONE[$key]->SOLAR_1MIN)) {
$messages[$key]['sensors']['SolarRadiation'][0]['solar_radiation_in_period'] = (string) $sxe->RUNWAY->ZONE[$key]->SOLAR_1MIN;
}
// Rain fall
if (isset($sxe->RUNWAY->ZONE[$key]->PRECIP_ACCUM)) {
$messages[$key]['sensors']['RainAws'][0]['period'] = 5;
$messages[$key]['sensors']['RainAws'][0]['rain_in_period'] = (string) $sxe->RUNWAY->ZONE[$key]->PRECIP_ACCUM;
}
// Sunshine duration
if (isset($sxe->RUNWAY->ZONE[$key]->SUN_ACCUM)) {
$messages[$key]['sensors']['SunshineDuration'][0]['period'] = 5;
$messages[$key]['sensors']['SunshineDuration'][0]['sun_duration_in_period'] = (string) $sxe->RUNWAY->ZONE[$key]->SUN_ACCUM;
}
}
if (!$messages) {
$result[] = $base_filename . " : No datasets found";
return implode("\n", $result);
}
$result[] = $base_filename . " : " . count($messages) . ' datasets were found';
$sql = "SELECT * \n FROM `" . Station::model()->tableName() . "` `t1`\n WHERE `t1`.`station_id_code` IN ('AWS08', 'AWS26')";
$res = Yii::app()->db->createCommand($sql)->queryAll();
if (!$res) {
$result[] = "AWS08 and AWS26 are not exist in database, no sense to convert XML into messages";
return implode("\n", $result);
}
// for each stationID looks for sensors and features of this station
$stations = array();
foreach ($res as $key => $value) {
$stations[$value['station_id_code']] = $value;
$sql = "SELECT `t1`.`sensor_id_code`,\n `t1`.`station_id`,\n `t2`.`feature_code`,\n `t3`.`code` AS `metric_code`,\n `t4`.`handler_id_code`\n FROM `" . StationSensor::model()->tableName() . "` `t1`\n LEFT JOIN `" . StationSensorFeature::model()->tableName() . "` `t2` ON `t1`.`station_sensor_id` = `t2`.`sensor_id`\n LEFT JOIN `" . RefbookMetric::model()->tableName() . "` `t3` ON `t3`.`metric_id` = `t2`.`metric_id`\n LEFT JOIN `" . SensorDBHandler::model()->tableName() . "` `t4` ON `t4`.`handler_id` = `t1`.`handler_id`\n WHERE `t1`.`station_id` = '" . $value['station_id'] . "'\n ORDER BY `t4`.`handler_id_code` ASC, `t1`.`sensor_id_code` ASC";
$res2 = Yii::app()->db->createCommand($sql)->queryAll();
if ($res2) {
$tmp = array();
foreach ($res2 as $value2) {
$tmp[$value2['handler_id_code']][$value2['sensor_id_code']][$value2['feature_code']] = $value2['metric_code'];
}
foreach ($tmp as $key_handler => $value_sensors) {
foreach ($value_sensors as $key_sensor => $value_features) {
$stations[$value['station_id_code']]['sensors'][$key_handler][] = array('sensor_id_code' => $key_sensor, 'features' => $value_features);
}
}
}
}
$date_parsed = date_parse_from_format("D, j M Y H:i:s", $sxe->DATE);
$date_prepared = mktime($date_parsed['hour'], $date_parsed['minute'], $date_parsed['second'], $date_parsed['month'], $date_parsed['day'], $date_parsed['year']);
// convert parsed XML data into regular message
// for this kind of messages we have an agreement to put X instead of D at the beginning of message.
foreach ($messages as $key => $value) {
if (!$stations[$value['station_id_code']]) {
$result[] = $value['station_id_code'] . " station is not exists in database, no sense to convert RNWY part into message";
continue;
}
$result_message_body = 'X' . $value['station_id_code'];
$result_message_body .= date('ymdHi', $date_prepared);
$result_message_body .= '00';
// we need last_log for this satation to calculate period of measurement (some sensors' strings should contain this period
$last_logs = ListenerLog::getLast2Messages($stations[$value['station_id_code']]['station_id']);
if (isset($value['sensors'])) {
foreach ($value['sensors'] as $key_handler => $value_sensors) {
if ($value_sensors) {
foreach ($value_sensors as $key_sensor => $value2) {
if (isset($stations[$value['station_id_code']]['sensors'][$key_handler][$key_sensor])) {
// create handler for each sensor (we parsed new data for)
$handler = SensorHandler::create($key_handler);
if ($key_handler == 'SolarRadiation' && $last_logs[0]['log_id']) {
if ($last_logs[0]['log_id']) {
$total_minutes = round(abs($date_prepared - strtotime($last_logs[0]['measuring_timestamp'])) / 60);
$value2['period'] = $total_minutes;
} else {
$value2['period'] = 1;
}
if ($value2['solar_radiation_in_period'][0] != 'M') {
$value2['solar_radiation_in_period'] = $value2['solar_radiation_in_period'] * $value2['period'] * 60;
}
}
// each handler has it's own implementation of preparing sensors string for message basing on XML data
$res = $handler->prepareXMLValue($value2, $stations[$value['station_id_code']]['sensors'][$key_handler][$key_sensor]['features']);
$result_message_body .= $stations[$value['station_id_code']]['sensors'][$key_handler][$key_sensor]['sensor_id_code'] . $res;
}
}
}
}
$result_message_body .= It::prepareCRC($result_message_body);
$result_message_body = '@' . $result_message_body . '$';
// add new message into database. It will be processed later as all newcame messages
$log_id = ListenerLog::addNew($result_message_body, 0, 1);
$result[] = $base_filename . " : New message #" . $log_id . " was added";
}
}
// return some comments created during convertation
return implode("\n", $result);
}
