class_LanguageSystem.php

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<?php
class LanguageSystem extends BaseFrameworkSystem implements ManageableLanguage {
        private $basePath = "";

        private $langCode = "xx"; // This will later be overwritten!

        private $langStrings = null;

        private static $thisInstance = null;

        protected function __construct () {
                // Call parent constructor
                parent::__construct(__CLASS__);

                // Clean up a little
                $this->removeNumberFormaters();
                $this->removeSystemArray();
        }

        public final static function createLanguageSystem ($basePath) {
                // Get a new instance
                $langInstance = new LanguageSystem();

                // Is the base path valid?
                if (empty($basePath)) {
                        // Language path is empty
                        throw new LanguagePathIsEmptyException($langInstance, self::EXCEPTION_UNEXPECTED_EMPTY_STRING);
                } elseif (!is_string($basePath)) {
                        // Is not a string
                        throw new InvalidLanguagePathStringException(array($langInstance, $basePath), self::EXCEPTION_INVALID_STRING);
                } elseif (!is_dir($basePath)) {
                        // Is not a path
                        throw new LanguagePathIsNoDirectoryException(array($langInstance, $basePath), self::EXCEPTION_INVALID_PATH_NAME);
                } elseif (!is_readable($basePath)) {
                        // Is not readable
                        throw new LanguagePathReadProtectedException(array($langInstance, $basePath), self::EXCEPTION_READ_PROTECED_PATH);
                }

                // Set the base path
                $langInstance->setBasePath($basePath);

                // Initialize the variable stack
                $langInstance->initLanguageStrings();

                // Set language code from default config
                $langInstance->setLanguageCode(FrameworkConfiguration::getInstance()->readConfig('default_lang'));

                // Remember this instance
                self::$thisInstance = $langInstance;

                // Return the prepared instance
                return $langInstance;
        }

        public final static function getInstance () {
                return self::$thisInstance;
        }

        protected final function setBasePath ($basePath) {
                // And set it
                $this->basePath = (string) $basePath;
        }

        protected final function setLanguageCode ($langCode) {
                // Cast it
                $langCode = (string) $langCode;

                // And set it (only 2 chars)
                $this->langCode = substr($langCode, 0, 2);
        }

        public function initLanguageStrings () {
                $this->langStrings = new FrameworkArrayObject("FakedLanguageStrings");
        }

        public final function getLanguageCode () {
                return $this->langCode;
        }

        public function getMessage ($messageId) {
                // Default is missing message text
                $messageText = sprintf("!%s!",
                        $messageId
                );

                // Try to look it up in the cache variable
                if ($this->langStrings->offsetExists($messageId)) {
                        // Return the message string
                        $messageText = $this->langStrings->offsetGet($messageId);
                }

                // Return the text
                return $messageText;
        }
}

// [EOF]
?>