Symfony Profiler

<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Intl\Data\Bundle\Reader;
use Symfony\Component\Intl\Data\Util\RecursiveArrayAccess;
use Symfony\Component\Intl\Exception\MissingResourceException;
use Symfony\Component\Intl\Exception\OutOfBoundsException;
use Symfony\Component\Intl\Exception\ResourceBundleNotFoundException;
use Symfony\Component\Intl\Locale;
/**
* Default implementation of {@link BundleEntryReaderInterface}.
*
* @author Bernhard Schussek <bschussek@gmail.com>
*
* @see BundleEntryReaderInterface
*
* @internal
*/
class BundleEntryReader implements BundleEntryReaderInterface
{
private $reader;
/**
* A mapping of locale aliases to locales.
*/
private $localeAliases = [];
/**
* Creates an entry reader based on the given resource bundle reader.
*/
public function __construct(BundleReaderInterface $reader)
{
$this->reader = $reader;
}
/**
* Stores a mapping of locale aliases to locales.
*
* This mapping is used when reading entries and merging them with their
* fallback locales. If an entry is read for a locale alias (e.g. "mo")
* that points to a locale with a fallback locale ("ro_MD"), the reader
* can continue at the correct fallback locale ("ro").
*
* @param array $localeAliases A mapping of locale aliases to locales
*/
public function setLocaleAliases(array $localeAliases)
{
$this->localeAliases = $localeAliases;
}
/**
* {@inheritdoc}
*/
public function read(string $path, string $locale)
{
return $this->reader->read($path, $locale);
}
/**
* {@inheritdoc}
*/
public function readEntry(string $path, string $locale, array $indices, bool $fallback = true)
{
$entry = null;
$isMultiValued = false;
$readSucceeded = false;
$exception = null;
$currentLocale = $locale;
$testedLocales = [];
while (null !== $currentLocale) {
// Resolve any aliases to their target locales
if (isset($this->localeAliases[$currentLocale])) {
$currentLocale = $this->localeAliases[$currentLocale];
}
try {
$data = $this->reader->read($path, $currentLocale);
$currentEntry = RecursiveArrayAccess::get($data, $indices);
$readSucceeded = true;
$isCurrentTraversable = $currentEntry instanceof \Traversable;
$isCurrentMultiValued = $isCurrentTraversable || \is_array($currentEntry);
// Return immediately if fallback is disabled or we are dealing
// with a scalar non-null entry
if (!$fallback || (!$isCurrentMultiValued && null !== $currentEntry)) {
return $currentEntry;
}
// =========================================================
// Fallback is enabled, entry is either multi-valued or NULL
// =========================================================
// If entry is multi-valued, convert to array
if ($isCurrentTraversable) {
$currentEntry = iterator_to_array($currentEntry);
}
// If previously read entry was multi-valued too, merge them
if ($isCurrentMultiValued && $isMultiValued) {
$currentEntry = array_merge($currentEntry, $entry);
}
// Keep the previous entry if the current entry is NULL
if (null !== $currentEntry) {
$entry = $currentEntry;
}
// If this or the previous entry was multi-valued, we are dealing
// with a merged, multi-valued entry now
$isMultiValued = $isMultiValued || $isCurrentMultiValued;
} catch (ResourceBundleNotFoundException $e) {
// Continue if there is a fallback locale for the current
// locale
$exception = $e;
} catch (OutOfBoundsException $e) {
// Remember exception and rethrow if we cannot find anything in
// the fallback locales either
$exception = $e;
}
// Remember which locales we tried
$testedLocales[] = $currentLocale;
// Check whether fallback is allowed
if (!$fallback) {
break;
}
// Then determine fallback locale
$currentLocale = Locale::getFallback($currentLocale);
}
// Multi-valued entry was merged
if ($isMultiValued) {
return $entry;
}
// Entry is still NULL, but no read error occurred
if ($readSucceeded) {
return $entry;
}
// Entry is still NULL, read error occurred. Throw an exception
// containing the detailed path and locale
$errorMessage = sprintf(
'Couldn\'t read the indices [%s] for the locale "%s" in "%s".',
implode('][', $indices),
$locale,
$path
);
// Append fallback locales, if any
if (\count($testedLocales) > 1) {
// Remove original locale
array_shift($testedLocales);
$errorMessage .= sprintf(
' The indices also couldn\'t be found for the fallback locale(s) "%s".',
implode('", "', $testedLocales)
);
}
throw new MissingResourceException($errorMessage, 0, $exception);
}
}

vendor/symfony/intl/Data/Bundle/Reader/BundleEntryReader.php line 72