/**
* Use thumbnailer to pre-process a bitstream to generate a jpeg file.
* Echoes an error message if a problem occurs (for the scheduler log).
*
* @param string $name name of the image to be pre-processed
* @param string $fullPath absolute path to the image to be pre-processed
* @return string
* @throws Zend_Exception
*/
public function preprocessByThumbnailer($name, $fullPath)
{
$tmpPath = UtilityComponent::getTempDirectory('thumbnailcreator');
if (!file_exists($tmpPath)) {
throw new Zend_Exception('Temporary thumbnail dir does not exist: ' . $tmpPath);
}
$copyDestination = $tmpPath . '/' . $name;
copy($fullPath, $copyDestination);
$jpegDestination = $tmpPath . '/' . $name . '.jpg';
/** @var RandomComponent $randomComponent */
$randomComponent = MidasLoader::loadComponent('Random');
while (file_exists($jpegDestination)) {
$jpegDestination = $tmpPath . '/' . $name . $randomComponent->generateInt() . '.jpg';
}
/** @var SettingModel $settingModel */
$settingModel = MidasLoader::loadModel('Setting');
$thumbnailerPath = $settingModel->getValueByName(MIDAS_THUMBNAILCREATOR_THUMBNAILER_KEY, $this->moduleName);
$thumbnailerParams = array($copyDestination, $jpegDestination);
$thumbnailerCmd = KWUtils::prepareExeccommand($thumbnailerPath, $thumbnailerParams);
if (KWUtils::isExecutable($thumbnailerPath)) {
KWUtils::exec($thumbnailerCmd);
} else {
unlink($copyDestination);
throw new Zend_Exception('Thumbnailer does not exist or you do not have execute permission. Please check the configuration of thumbnailcreator module.');
}
if (!file_exists($jpegDestination)) {
unlink($copyDestination);
throw new Zend_Exception('Problem executing thumbnailer on your system');
} else {
unlink($copyDestination);
return $jpegDestination;
}
}
/** tests isExecutable function */
public function testIsExecutable()
{
// this is tricky to test, as it is hard to make assumptions that hold
// up across platforms
$app = 'php';
if (KWUtils::isWindows()) {
$app .= '.exe';
}
// for now assume that 'php' will not be found when not looking in the path
$this->assertFalse(KWUtils::isExecutable($app, false));
// but 'php' will be found in the path
$this->assertTrue(KWUtils::isExecutable($app, true));
}
