/**
* Perform necessary preprocessing and materialization when the specified asset is requested
*
* Returns an array of two elements:
* - directory code where the file is supposed to be found
* - relative path to the file
*
* Automatically caches the obtained successful results or returns false if source file was not found
*
* @param LocalInterface $asset
* @return array|bool
*/
private function preProcess(LocalInterface $asset)
{
$sourceFile = $this->findSourceFile($asset);
if (!$sourceFile) {
return false;
}
$dirCode = \Magento\Framework\App\Filesystem::ROOT_DIR;
$path = $this->rootDir->getRelativePath($sourceFile);
$cacheId = $path . ':' . $asset->getPath();
$cached = $this->cache->load($cacheId);
if ($cached) {
return unserialize($cached);
}
$chain = new \Magento\Framework\View\Asset\PreProcessor\Chain($asset, $this->rootDir->readFile($path), $this->getContentType($path));
$preProcessors = $this->preProcessorPool->getPreProcessors($chain->getOrigContentType(), $chain->getTargetContentType());
foreach ($preProcessors as $processor) {
$processor->process($chain);
}
$chain->assertValid();
if ($chain->isChanged()) {
$dirCode = \Magento\Framework\App\Filesystem::VAR_DIR;
$path = self::TMP_MATERIALIZATION_DIR . '/source/' . $asset->getPath();
$this->varDir->writeFile($path, $chain->getContent());
}
$result = array($dirCode, $path);
$this->cache->save(serialize($result), $cacheId);
return $result;
}
/**
* @param string $sourceContentType
* @param string $targetContentType
* @param array $expectedResult
*
* @dataProvider getPreProcessorsDataProvider
*/
public function testGetPreProcessors($sourceContentType, $targetContentType, array $expectedResult)
{
// Make the object manager to return strings for simplicity of mocking
$this->objectManager->expects($this->any())->method('get')->with($this->anything())->will($this->returnArgument(0));
$this->assertSame($expectedResult, $this->factory->getPreProcessors($sourceContentType, $targetContentType));
}
