if (count($ozoneData) > 0) {
$timestamp = $ozoneData[0][0];
// epoch from data obtained from db
}
if (count($ozoneData) > 0) {
$responseData = array('status' => 'success', 'labels' => $bandHelper->getDesc(), 'timestamp' => $timestamp);
for ($i = 0; $i < count($ozoneData); $i++) {
$lat = $ozoneData[$i][1];
$lng = $ozoneData[$i][2];
$o3 = floor($ozoneData[$i][3] + 0.5);
$o3_flag = $ozoneData[$i][4];
$siteDesc = $ozoneData[$i][5];
if ($o3_flag != 'K') {
continue;
}
$label_id = $bandHelper->getLabelId($o3);
$responseData['data'][] = array('label_id' => $label_id, 'lat' => $lat, 'lng' => $lng, 'flag' => $o3_flag, 'value' => $o3, 'site_desc' => $siteDesc);
}
// if there wasn't even a single data with K flag, status=fail
if (empty($responseData['data'])) {
$responseData['status'] = 'fail';
unset($responseData['labels']);
$responseData['message'] = 'No data with K flag';
$responseData['data'] = $ozoneData;
}
} else {
$responseData = array('status' => 'fail', 'message' => 'No data available', 'timestamp' => $timestamp);
}
$end = microtime(true);
if ($requestType == 'json') {
header('Content-Type: text/javascript');
$latest_gen_time = $loadedData[0]['gen_time'];
}
}
} else {
$loadedData = $queryManager->getPointData($t, $pointsOfInterest, $gridReference, $useLatestDataWhenFail);
if (!empty($loadedData)) {
$latest_gen_time = $queryManager->getGridUpdatedTime($t);
}
}
$queryTime += microtime(true) - $queryStart;
// now prepare data
if (!empty($loadedData)) {
$latlngData = array();
// count($pointsOfInterest) should be same as count($loadedData)
for ($i = 0; $i < count($pointsOfInterest); $i++) {
$labelId = $bandHelper->getLabelId($loadedData[$i]['o3']);
$gridPoint = $loadedData[$i]['lat'] . ':' . $loadedData[$i]['lng'];
$attr = array('ozone_level' => intval($loadedData[$i]['o3']), 'exp' => $loadedData[$i]['exp'], 'gridpoint' => "{$gridPoint}");
if ($add_gen_time) {
$attr['gen_time'] = $loadedData[$i]['gen_time'];
}
$latlngData[] = array('label_id' => $labelId, 'lat' => $pointsOfInterest[$i][0], 'lng' => $pointsOfInterest[$i][1], 'attr' => $attr);
}
$data[] = array('timestamp' => intval($t), 'data' => $latlngData);
} else {
// assume there is no data available and do nothing
//$latlngData = array();
/*
// commented out by TMH 2012-07-19 ; assuming all data are processed in the back end
// query based on timestamp
$bandHashMap->put($key, doubleval($val));
}
$queryManager = new QueryManager();
$start = microtime(true);
$grid = array();
$queryTime = 0;
$driver = new Java('LatLongInterpolation.LatLngDriver', $bandHashMap);
for ($t = $timestamp; $t <= $timestamp2; $t += $interval) {
$queryStart = microtime(true);
$loadedData = $queryManager->getPointData($t, $pointsOfInterest, $gridReference);
$queryTime += microtime(true) - $queryStart;
if (!empty($loadedData)) {
$latlngData = array();
// count($pointsOfInterest) should be same as count($loadedData)
for ($i = 0; $i < count($pointsOfInterest); $i++) {
$labelId = $bandHelper->getLabelId($loadedData[$i]['o3']);
$gridPoint = $loadedData[$i]['lat'] . ':' . $loadedData[$i]['lng'];
$latlngData[] = array('label_id' => $labelId, 'lat' => $pointsOfInterest[$i][0], 'lng' => $pointsOfInterest[$i][1], 'attr' => array('ozone_level' => $loadedData[$i]['o3'], 'exp' => $loadedData[$i]['exp'], 'gridpoint' => "{$gridPoint}"));
}
$data[] = array('timestamp' => $t, 'data' => $latlngData);
} else {
// query based on timestamp
// need to do the following for each of $timestamp to $timestamp2
$queryStart = microtime(true);
$allData = $queryManager->getDataForWindBasedInterpolation($t, 6);
if (empty($allData['ozoneValues'])) {
continue;
}
$queryTime += microtime(true) - $queryStart;
$r = $driver->getGridData($allData['ozoneStations'], $allData['windStations'], $allData['ozoneValues'], $allData['windSpeed'], $allData['windDirection'], $stepSize);
$grid = java_values($r);
