Viewing file:  Reader.php (3.46 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
<?php
declare(strict_types=1);
namespace OpenSpout\Reader\XLSX;
use OpenSpout\Common\Exception\IOException;
use OpenSpout\Common\Helper\Escaper\XLSX;
use OpenSpout\Reader\AbstractReader;
use OpenSpout\Reader\Exception\NoSheetsFoundException;
use OpenSpout\Reader\XLSX\Manager\SharedStringsCaching\CachingStrategyFactory;
use OpenSpout\Reader\XLSX\Manager\SharedStringsCaching\CachingStrategyFactoryInterface;
use OpenSpout\Reader\XLSX\Manager\SharedStringsCaching\MemoryLimit;
use OpenSpout\Reader\XLSX\Manager\SharedStringsManager;
use OpenSpout\Reader\XLSX\Manager\SheetManager;
use OpenSpout\Reader\XLSX\Manager\WorkbookRelationshipsManager;
use ZipArchive;
/**
* @extends AbstractReader<SheetIterator>
*/
final class Reader extends AbstractReader
{
private ZipArchive $zip;
/** @var SharedStringsManager Manages shared strings */
private SharedStringsManager $sharedStringsManager;
/** @var SheetIterator To iterator over the XLSX sheets */
private SheetIterator $sheetIterator;
private readonly Options $options;
private readonly CachingStrategyFactoryInterface $cachingStrategyFactory;
public function __construct(
?Options $options = null,
?CachingStrategyFactoryInterface $cachingStrategyFactory = null
) {
$this->options = $options ?? new Options();
if (null === $cachingStrategyFactory) {
$memoryLimit = \ini_get('memory_limit');
$cachingStrategyFactory = new CachingStrategyFactory(new MemoryLimit($memoryLimit));
}
$this->cachingStrategyFactory = $cachingStrategyFactory;
}
public function getSheetIterator(): SheetIterator
{
$this->ensureStreamOpened();
return $this->sheetIterator;
}
/**
* Returns whether stream wrappers are supported.
*/
protected function doesSupportStreamWrapper(): bool
{
return false;
}
/**
* Opens the file at the given file path to make it ready to be read.
* It also parses the sharedStrings.xml file to get all the shared strings available in memory
* and fetches all the available sheets.
*
* @param string $filePath Path of the file to be read
*
* @throws IOException If the file at the given path or its content cannot be read
* @throws NoSheetsFoundException If there are no sheets in the file
*/
protected function openReader(string $filePath): void
{
$this->zip = new ZipArchive();
if (true !== $this->zip->open($filePath)) {
throw new IOException("Could not open {$filePath} for reading.");
}
$this->sharedStringsManager = new SharedStringsManager(
$filePath,
$this->options,
new WorkbookRelationshipsManager($filePath),
$this->cachingStrategyFactory
);
if ($this->sharedStringsManager->hasSharedStrings()) {
// Extracts all the strings from the sheets for easy access in the future
$this->sharedStringsManager->extractSharedStrings();
}
$this->sheetIterator = new SheetIterator(
new SheetManager(
$filePath,
$this->options,
$this->sharedStringsManager,
new XLSX()
)
);
}
/**
* Closes the reader. To be used after reading the file.
*/
protected function closeReader(): void
{
$this->zip->close();
$this->sharedStringsManager->cleanup();
}
}
|