protected function getMaxUncompressionSpeedFormatChain(FormatChainInterface $formatChain, array $methods)
{
$maxSpeed = MethodInterface::SPEED_LEVEL_LOWEST;
foreach ($formatChain->getChainFormats() as $format) {
$maxSpeed = max($maxSpeed, $this->getMaxUncompressionSpeedFormat($format, $methods));
}
return $maxSpeed;
}
/**
* {@inheritdoc}
*/
public function extract($source, $target, FormatChainInterface $chainFormat)
{
$chainFormats = $chainFormat->getChainFormats();
foreach ($chainFormats as $format) {
if (false === $this->supportChecker->isFormatSupported($format)) {
throw new FileFormatNotSupportedException($source, $format);
}
}
$success = true;
$lastFile = $source;
$tempDirectories = [];
for ($i = 0, $formatsCount = count($chainFormats); $i < $formatsCount && true === $success; $i++) {
if ($i + 1 === $formatsCount) {
// last
$success = $this->extractFormat($lastFile, $target, $chainFormats[$i]);
} else {
$tempDirectory = $target . DIRECTORY_SEPARATOR . 'step_' . $i;
$tempDirectories[] = $tempDirectory;
$success = $this->extractFormat($lastFile, $tempDirectory, $chainFormats[$i]);
// look for the uncompressed file
$iterator = new \FilesystemIterator($tempDirectory, \FilesystemIterator::SKIP_DOTS);
$extractedFile = null;
while ($iterator->valid()) {
$extractedFile = $iterator->current();
$iterator->next();
}
if (null === $extractedFile) {
throw new FileCorruptedException($lastFile);
}
$lastFile = $extractedFile->getRealPath();
}
}
// clean temp directories
foreach ($tempDirectories as $directory) {
$this->filesystem->remove($directory);
}
return $success;
}
/**
* {@inheritdoc}
*/
public function getUnsupportedFormatsFromChain(FormatChainInterface $formatChain)
{
$formats = [];
foreach ($formatChain->getChainFormats() as $format) {
if (false === $this->isFormatSupported($format)) {
$formats[] = $format;
}
}
return $formats;
}
