OCA\FaceRecognition\BackgroundJob\Tasks\CheckRequirementsTask::execute()

Complexity

Conditions	6
Paths	8

Size

Total Lines	52
Code Lines	34

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	42

Importance

Changes

0

<?php
	public function execute(FaceRecognitionContext $context) {
		$this->setContext($context);
		$model = intval($this->config->getAppValue('facerecognition', 'model', AddDefaultFaceModel::DEFAULT_FACE_MODEL_ID));

		$req = new Requirements($context->appManager, $model);

		if (!$req->pdlibLoaded()) {
			$error_message = "PDLib is not loaded. Cannot continue";
			$this->logInfo($error_message);
			return false;
		}

		if (!$req->modelFilesPresent()) {
			$error_message =
				"Files of model with ID ' . $model . ' are not present in models/ directory.\n" .
				"Please contact administrator to change models you are using for face recognition\n" .
				"or reinstall application. File an issue here if that doesn\'t help: https://github.com/matiasdelellis/facerecognition/issues";
			$this->logInfo($error_message);
			return false;
		}

		// Determine the system memory with some considerations.
		$memory = MemoryLimits::getAvailableMemory();
		if ($memory <= 0) {
			// We cannot determine amount of memory to give to face recognition CNN.
			// We will hardcode it here to 1GB, but plan is to expose this to user in future.
			// TODO: allow user to choose "recognition quality", which will map to given memory.
			// If user explicitely set something, we ignore getting memory from system.
			$this->logDebug("Cannot detect amount of memory given to PHP process. Using 1GB for image processing");
			$memory = 1024 * 1024 * 1024;

		// Apply some prudent limits.
		if ($memory < 1024 * 1024 * 1024) {
			$error_message =
				"\n" .
				"Seems that you have only " . intval($memory / (1024 * 1024)). "MB of memory given to PHP.\n" .
				"Face recognition application requires at least 1 GB. You need to change your memory_limit in php.ini.\n" .
				"Check https://secure.php.net/manual/en/ini.core.php#ini.memory-limit for details.\n" .
				"If you already set this to unlimited, it seems your system is not having enough RAM memory.";
			$this->logInfo($error_message);
			return false;
		} else {
			$this->logDebug(sprintf('Found %d MB available to PHP.', $memory / (1024 * 1024)));
			// No point going above 4GB ("4GB should be enough for everyone")
			if ($memory > 4 * 1024 * 1024 * 1024) {
				$this->logDebug('Capping used memory to maximum of 4GB');
				$memory = 4 * 1024 * 1024 * 1024;
			}
		}

		// Apply admin setting limit.
		$memorySetting = $this->config->getAppValue('facerecognition', 'memory-limits', '-1');
		if ($memorySetting > 0) {
}