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<?php
namespace Maatwebsite\Excel;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\PendingDispatch;
use Illuminate\Support\Collection;
use Maatwebsite\Excel\Concerns\ShouldQueueWithoutChain;
use Maatwebsite\Excel\Concerns\WithChunkReading;
use Maatwebsite\Excel\Concerns\WithEvents;
use Maatwebsite\Excel\Concerns\WithLimit;
use Maatwebsite\Excel\Concerns\WithProgressBar;
use Maatwebsite\Excel\Events\BeforeImport;
use Maatwebsite\Excel\Files\TemporaryFile;
use Maatwebsite\Excel\Imports\HeadingRowExtractor;
use Maatwebsite\Excel\Jobs\AfterImportJob;
use Maatwebsite\Excel\Jobs\QueueImport;
use Maatwebsite\Excel\Jobs\ReadChunk;
use Throwable;
class ChunkReader
{
/**
* @param WithChunkReading $import
* @param Reader $reader
* @param TemporaryFile $temporaryFile
*
* @return \Illuminate\Foundation\Bus\PendingDispatch|null
*/
public function read(WithChunkReading $import, Reader $reader, TemporaryFile $temporaryFile)
{
if ($import instanceof WithEvents && isset($import->registerEvents()[BeforeImport::class])) {
$reader->beforeImport($import);
}
$chunkSize = $import->chunkSize();
$totalRows = $reader->getTotalRows();
$worksheets = $reader->getWorksheets($import);
$queue = property_exists($import, 'queue') ? $import->queue : null;
$delayCleanup = property_exists($import, 'delayCleanup') ? $import->delayCleanup : 600;
if ($import instanceof WithProgressBar) {
$import->getConsoleOutput()->progressStart(array_sum($totalRows));
}
$jobs = new Collection();
foreach ($worksheets as $name => $sheetImport) {
$startRow = HeadingRowExtractor::determineStartRow($sheetImport);
if ($sheetImport instanceof WithLimit) {
$limit = $sheetImport->limit();
if ($limit <= $totalRows[$name]) {
$totalRows[$name] = $sheetImport->limit();
}
}
for ($currentRow = $startRow; $currentRow <= $totalRows[$name]; $currentRow += $chunkSize) {
$jobs->push(new ReadChunk(
$import,
$reader->getPhpSpreadsheetReader(),
$temporaryFile,
$name,
$sheetImport,
$currentRow,
$chunkSize
));
}
}
$afterImportJob = new AfterImportJob($import, $reader);
if ($import instanceof ShouldQueueWithoutChain) {
$jobs->push($afterImportJob->delay($delayCleanup));
return $jobs->each(function ($job) use ($queue) {
dispatch($job->onQueue($queue));
});
}
$jobs->push($afterImportJob);
if ($import instanceof ShouldQueue) {
return new PendingDispatch(
(new QueueImport($import))->chain($jobs->toArray())
);
}
$jobs->each(function ($job) {
try {
dispatch_now($job);
} catch (Throwable $e) {
if (method_exists($job, 'failed')) {
$job->failed($e);
}
throw $e;
}
});
if ($import instanceof WithProgressBar) {
$import->getConsoleOutput()->progressFinish();
}
unset($jobs);
return null;
}
}