/**
* {@inheritdoc}
*/
public function extract($file, $path, FormatInterface $format)
{
if (false === $this->supportChecker->isFormatSupported($format)) {
throw new FormatNotSupportedException($format);
}
$success = false;
for ($i = 0, $methodsCount = count($this->methods); $i < $methodsCount && false === $success; $i++) {
$method = $this->methods[$i];
if ($method->isSupported() && $method->isFormatSupported($format)) {
$success = $method->extract($file, $path, $format);
}
}
return $success;
}
/**
* Gets an ordered collection of preferred files.
* @throws StrategyRequiredException
*
* @return FileInterface[]
*/
public function getPreferredFilesOrdered()
{
if (null === $this->strategy) {
throw new StrategyRequiredException();
}
$preferredFiles = $this->strategy->getPreferredFilesOrdered($this->files, $this->methods);
if (true === $this->excludeUnsupported) {
return array_values(array_filter($preferredFiles, function (FileInterface $file) {
return $this->supportChecker->isFormatSupported($file->getFormat());
}));
}
return $preferredFiles;
}
/**
* {@inheritdoc}
*/
public function extract($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;
}
