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<?php |
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declare(strict_types=1); |
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/** |
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* balloon |
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* |
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* @copyright Copryright (c) 2012-2019 gyselroth GmbH (https://gyselroth.com) |
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* @license GPL-3.0 https://opensource.org/licenses/GPL-3.0 |
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*/ |
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namespace Balloon; |
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use Balloon\Converter\Adapter\AdapterInterface; |
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use Balloon\Converter\Exception; |
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use Balloon\Filesystem\Node\File; |
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use Psr\Log\LoggerInterface; |
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class Converter |
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{ |
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/** |
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* LoggerInterface. |
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* |
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* @var LoggerInterface |
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*/ |
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protected $logger; |
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/** |
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* Adapter. |
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* |
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* @var array |
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*/ |
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protected $adapter = []; |
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/** |
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* Initialize. |
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*/ |
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public function __construct(LoggerInterface $logger) |
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{ |
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$this->logger = $logger; |
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} |
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/** |
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* Has adapter. |
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*/ |
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public function hasAdapter(string $name): bool |
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{ |
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return isset($this->adapter[$name]); |
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} |
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/** |
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* Inject adapter. |
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*/ |
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public function injectAdapter(AdapterInterface $adapter, ?string $name = null): self |
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{ |
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if (null === $name) { |
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$name = get_class($adapter); |
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} |
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$this->logger->debug('inject converter adapter ['.$name.'] of type ['.get_class($adapter).']', [ |
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'category' => get_class($this), |
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]); |
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if ($this->hasAdapter($name)) { |
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throw new Exception('adapter '.$name.' is already registered'); |
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} |
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$this->adapter[$name] = $adapter; |
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return $this; |
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} |
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/** |
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* Get adapter. |
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*/ |
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public function getAdapter(string $name): AdapterInterface |
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{ |
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if (!$this->hasAdapter($name)) { |
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throw new Exception('adapter '.$name.' is not registered'); |
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} |
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return $this->adapter[$name]; |
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} |
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/** |
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* Get adapters. |
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*/ |
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public function getAdapters(array $adapters = []): array |
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{ |
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if (empty($adapter)) { |
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return $this->adapter; |
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} |
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$list = []; |
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foreach ($adapter as $name) { |
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if (!$this->hasAdapter($name)) { |
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throw new Exception('adapter '.$name.' is not registered'); |
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} |
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$list[$name] = $this->adapter[$name]; |
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} |
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return $list; |
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} |
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/** |
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* Get supported formats. |
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*/ |
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public function getSupportedFormats(File $file): array |
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{ |
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foreach ($this->adapter as $adapter) { |
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if ($adapter->match($file)) { |
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return $adapter->getSupportedFormats($file); |
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} |
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} |
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return []; |
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} |
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/** |
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* Create preview. |
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*/ |
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public function createPreview(File $file) |
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{ |
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$this->logger->debug('create preview from file ['.$file->getId().']', [ |
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'category' => get_class($this), |
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]); |
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if (0 === $file->getSize()) { |
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throw new Exception('can not create preview from empty file'); |
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} |
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foreach ($this->adapter as $name => $adapter) { |
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if ($adapter->matchPreview($file)) { |
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return $adapter->createPreview($file); |
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} |
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$this->logger->debug('skip convert adapter ['.$name.'], adapter can not handle file', [ |
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'category' => get_class($this), |
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]); |
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} |
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throw new Exception('no converter adapter available to create preview for node '.$file->getId()); |
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} |
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/** |
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* Convert document. |
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*/ |
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public function convert(File $file, string $format) |
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{ |
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$this->logger->debug('convert file ['.$file->getId().'] to format ['.$format.']', [ |
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'category' => get_class($this), |
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]); |
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if (0 === $file->getSize()) { |
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throw new Exception('can not convert empty file'); |
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} |
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foreach ($this->adapter as $name => $adapter) { |
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if ($adapter->match($file) && in_array($format, $adapter->getSupportedFormats($file), true)) { |
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return $adapter->convert($file, $format); |
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} |
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$this->logger->debug('skip convert adapter ['.$name.'], adapter can not handle file', [ |
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'category' => get_class($this), |
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]); |
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} |
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throw new Exception('no converter adapter available for node '.$file->getId()); |
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} |
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} |
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gyselroth /
balloon
Loading history...
Let’s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let’s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: