LanguageStore.php

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<?php
namespace TYPO3\CMS\Core\Localization;

class LanguageStore implements \TYPO3\CMS\Core\SingletonInterface {

    protected $supportedExtensions;

    protected $configuration;

    protected $data;

    public function __construct() {
        $this->initialize();
    }

    public function initialize() {
        if (isset($GLOBALS['TYPO3_CONF_VARS']['SYS']['lang']['format']['priority']) && trim($GLOBALS['TYPO3_CONF_VARS']['SYS']['lang']['format']['priority']) !== '') {
            $this->supportedExtensions = \TYPO3\CMS\Core\Utility\GeneralUtility::trimExplode(',', $GLOBALS['TYPO3_CONF_VARS']['SYS']['lang']['format']['priority']);
        } else {
            $this->supportedExtensions = array('xlf', 'xml', 'php');
        }
    }

    public function hasData($fileReference, $languageKey) {
        if (isset($this->data[$fileReference][$languageKey]) && is_array($this->data[$fileReference][$languageKey])) {
            return TRUE;
        }
        return FALSE;
    }

    public function getData($fileReference) {
        return $this->data[$fileReference];
    }

    public function getDataByLanguage($fileReference, $languageKey) {
        return $this->data[$fileReference][$languageKey];
    }

    public function setData($fileReference, $languageKey, $data) {
        $this->data[$fileReference][$languageKey] = $data;
        return $this;
    }

    public function flushData($fileReference) {
        unset($this->data[$fileReference]);
        return $this;
    }

    public function setConfiguration($fileReference, $languageKey, $charset) {
        $this->configuration[$fileReference] = array(
            'fileReference' => $fileReference,
            'fileExtension' => FALSE,
            'parserClass' => NULL,
            'languageKey' => $languageKey,
            'charset' => $charset
        );
        $fileWithoutExtension = \TYPO3\CMS\Core\Utility\GeneralUtility::getFileAbsFileName($this->getFileReferenceWithoutExtension($fileReference));
        foreach ($this->supportedExtensions as $extension) {
            if (@is_file(($fileWithoutExtension . '.' . $extension))) {
                $this->configuration[$fileReference]['fileReference'] = $fileWithoutExtension . '.' . $extension;
                $this->configuration[$fileReference]['fileExtension'] = $extension;
                break;
            }
        }
        if ($this->configuration[$fileReference]['fileExtension'] === FALSE) {
            throw new \TYPO3\CMS\Core\Localization\Exception\FileNotFoundException(sprintf('Source localization file (%s) not found', $fileReference), 1306410755);
        }
        $extension = $this->configuration[$fileReference]['fileExtension'];
        if (isset($GLOBALS['TYPO3_CONF_VARS']['SYS']['lang']['parser'][$extension]) && trim($GLOBALS['TYPO3_CONF_VARS']['SYS']['lang']['parser'][$extension]) !== '') {
            $this->configuration[$fileReference]['parserClass'] = $GLOBALS['TYPO3_CONF_VARS']['SYS']['lang']['parser'][$extension];
        } else {
            throw new \TYPO3\CMS\Core\Localization\Exception\InvalidParserException('TYPO3 Fatal Error: l10n parser for file extension "' . $extension . '" is not configured! Please check you configuration.', 1301579637);
        }
        if (!class_exists($this->configuration[$fileReference]['parserClass']) || trim($this->configuration[$fileReference]['parserClass']) === '') {
            throw new \TYPO3\CMS\Core\Localization\Exception\InvalidParserException('TYPO3 Fatal Error: l10n parser "' . $this->configuration[$fileReference]['parserClass'] . '" cannot be found or is an empty parser!', 1270853900);
        }
        return $this;
    }

    public function getFileReferenceWithoutExtension($fileReference) {
        if (!isset($this->configuration[$fileReference]['fileReferenceWithoutExtension'])) {
            $this->configuration[$fileReference]['fileReferenceWithoutExtension'] = preg_replace('/\\.[a-z0-9]+$/i', '', $fileReference);
        }
        return $this->configuration[$fileReference]['fileReferenceWithoutExtension'];
    }

    public function getParserInstance($fileReference) {
        if (isset($this->configuration[$fileReference]['parserClass']) && trim($this->configuration[$fileReference]['parserClass']) !== '') {
            return \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance((string) $this->configuration[$fileReference]['parserClass']);
        } else {
            throw new \TYPO3\CMS\Core\Localization\Exception\InvalidParserException(sprintf('Invalid parser configuration for the current file (%s)', $fileReference), 1307293692);
        }
    }

    public function getAbsoluteFileReference($fileReference) {
        if (isset($this->configuration[$fileReference]['fileReference']) && trim($this->configuration[$fileReference]['fileReference']) !== '') {
            return (string) $this->configuration[$fileReference]['fileReference'];
        } else {
            throw new \InvalidArgumentException(sprintf('Invalid file reference configuration for the current file (%s)', $fileReference), 1307293693);
        }
    }

    public function getSupportedExtensions() {
        return $this->supportedExtensions;
    }

}