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<?php |
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namespace Laposte\DatanovaBundle\Manager; |
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use Laposte\DatanovaBundle\Model\Download; |
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use Laposte\DatanovaBundle\Model\Search; |
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use Laposte\DatanovaBundle\Client\ClientInterface; |
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use Laposte\DatanovaBundle\Service\Downloader; |
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use Laposte\DatanovaBundle\Service\Finder; |
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use Laposte\DatanovaBundle\Parser\ParserInterface; |
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use Psr\Log\LoggerInterface; |
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class RecordsManager |
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{ |
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/** |
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* @var ClientInterface |
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*/ |
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private $client; |
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/** |
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* @var Downloader |
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*/ |
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private $downloader; |
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/** |
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* @var Finder |
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*/ |
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private $finder; |
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/** |
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* @var ParserInterface[] |
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*/ |
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private $parsers; |
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/** @var LoggerInterface */ |
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private $logger; |
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/** |
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* @param ClientInterface $client |
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* @param Downloader $downloader |
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* @param Finder $finder |
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*/ |
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public function __construct(ClientInterface $client, Downloader $downloader, Finder $finder) |
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{ |
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$this->parsers = array(); |
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$this->client = $client; |
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$this->downloader = $downloader; |
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$this->finder = $finder; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function setLogger(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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* @param ParserInterface $parser |
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*/ |
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public function addParser(ParserInterface $parser) |
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{ |
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$this->parsers[] = $parser; |
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} |
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/** |
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* @param Search $search |
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* |
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* @return array|false |
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*/ |
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public function search(Search $search) |
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{ |
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//look locally (parser) |
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$data = $this->searchLocally($search); |
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//query remote api |
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if (false === $data) { |
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$data = $this->searchDistant($search); |
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} |
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return $data; |
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} |
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/** |
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* Look locally (parsers) |
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* |
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* @param Search $search |
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* |
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* @return array|false |
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*/ |
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private function searchLocally(Search $search) |
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{ |
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$this->log('debug', sprintf('Search locally for %s dataset', $search->getDataset()), $search->getParameters()); |
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$result = false; |
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foreach ($this->parsers as $parser) { |
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$parsed = $parser->parse($search->getDataset()); |
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if ($parsed) { |
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$result = $this->searchInArrayData($parsed, $search); |
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$this->sortLocalData($result, $search); |
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$this->log('debug', sprintf('Local dataset %s found', $search->getDataset()), $search->getParameters()); |
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break; |
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} |
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} |
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return $result; |
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} |
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/** |
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* @param array $parsed |
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* @param Search $search |
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* |
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* @return array |
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*/ |
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private function sortLocalData(array $parsed, Search $search) |
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{ |
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$sortKey = $search->getSort(); |
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if (!empty($sortKey)) { |
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$sorter = function ($key) { |
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return function ($elt1, $elt2) use ($key) { |
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return strnatcmp($elt1[$key], $elt2[$key]); |
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}; |
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}; |
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usort($parsed, $sorter($sortKey)); |
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} |
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return $parsed; |
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} |
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/** |
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* @param array $parsed |
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* @param Search $search |
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* |
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* @return array |
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*/ |
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private function searchInArrayData(array $parsed, Search $search) |
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{ |
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$data = array(); |
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$query = $search->getFilterValue(); |
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$column = $search->getFilterColumn(); |
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foreach ($parsed as $index => $line) { |
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if ($search->getStart() > $index) { |
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continue; |
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} |
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if (empty($query) || $this->matchToSearch($query, $column, $line)) { |
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$data[] = $line; |
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} |
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if ($search->getRows() == count($data)) { |
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break; |
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} |
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} |
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return $data; |
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} |
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/** |
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* @param string $query |
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* @param string $column |
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* @param array $line |
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* @return bool |
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*/ |
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private function matchToSearch($query, $column, $line) |
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{ |
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$match = false; |
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if (!empty($column)) { |
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if (array_key_exists($column, $line) && $query == $line[$column]) { |
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$match = true; |
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} |
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} else { |
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foreach ($line as $value) { |
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if (false !== strpos($value, $query)) { |
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$match = true; |
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break; |
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} |
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} |
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} |
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return $match; |
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} |
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/** |
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* @param string $level |
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* @param string $message |
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* @param array $context |
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*/ |
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private function log($level, $message, $context = array()) |
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{ |
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if ($this->logger) { |
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$this->logger->log($level, $message, $context); |
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} |
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} |
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/** |
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* Look locally (parsers) |
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* |
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* @param Search $search |
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* |
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* @return array|false |
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*/ |
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private function searchDistant(Search $search) |
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{ |
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$data = array(); |
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$result = $this->client->get('search', $search->getParameters()); |
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if ($result) { |
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$result = json_decode($result, true); |
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foreach ($result['records'] as $record) { |
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$data[] = $record['fields']; |
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} |
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} |
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return $data; |
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} |
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/** |
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* @param Download $download |
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* @param bool $forceUpdate |
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* |
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* @return false|string |
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*/ |
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public function download(Download $download, $forceUpdate = false) |
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{ |
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return $this->downloader->download( |
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$download->getDataset(), |
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$download->getFormat(), |
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$download->getFilter(), |
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$forceUpdate |
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); |
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} |
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/** |
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* @param Download $download |
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* |
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* @return null|string |
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*/ |
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public function getLocalDatasetContent(Download $download) |
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{ |
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$content = null; |
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$filepath = $this->finder->findDataset( |
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$download->getDataset(), |
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$download->getFormat(), |
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$download->getFilter() |
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); |
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if (false !== $filepath) { |
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$content = $this->finder->getContent($filepath); |
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} |
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return $content; |
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} |
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} |
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