getDebugInstance()->output(sprintf("[%s:] Konstruktor erreicht.
\n", $this->__toString() )); // Set description $this->setPartDescr("BZIP2-Kompressor"); // Create an unique ID $this->createUniqueID(); } /** * Create a new compressor channel based a given compression handler * * @return $cInstance An instance of this class */ public final static function createBzip2Compressor () { // Get new instance if ((function_exists('bzcompress')) && (function_exists('bzdecompress'))) { // Compressor can maybe be used $cInstance = new Bzip2Compressor(); // Debug message if ((defined('DEBUG_COMPRESSOR')) || (defined('DEBUG_ALL'))) $cInstance->getDebugInstance()->output(sprintf("[%s:] BZIP2-Kompression wird verwendet.
\n", $cInstance->__toString() )); } else { // Routines not found! $cInstance = null; // Debug message if ((defined('DEBUG_COMPRESSOR')) || (defined('DEBUG_ALL'))) $cInstance->getDebugInstance()->output(sprintf("[%s:] BZIP2-Kompressionsroutinen nicht gefunden.
\n", $cInstance->__toString() )); } // Return the compressor instance return $cInstance; } /** * BZIP2 compression stream * * @param $streamData Mixed non-object stream data * @return $streamData The compressed stream data * @throws InvalidObjectException If the stream is an object */ public function compressStream ($streamData) { if (is_object($streamData)) { // Throw an exception throw new InvalidObjectException($streamData, self::EXCEPTION_UNEXPECTED_OBJECT); } // Return the compressed stream return bzcompress($streamData, 1); } /** * BZIP2 decompression stream * * @param $streamData Mixed non-object stream data * @return $streamData The decompressed stream data * @throws InvalidObjectException If the stream is an object */ public function decompressStream ($streamData) { if (is_object($streamData)) { // Throw an exception throw new InvalidObjectException($streamData, self::EXCEPTION_UNEXPECTED_OBJECT); } // Return the decompressed stream return bzdecompress($streamData); } /** * Getter for the file extension of this compressor * * @return $string Returns always "bz2" */ public final function getCompressorExtension () { if ((defined('DEBUG_COMPRESSOR')) || (defined('DEBUG_ALL'))) $this->getDebugInstance()->output(sprintf("[%s:] Dateierweiterung angefordert.
\n", $this->__toString() )); return "bz2"; } } // [EOF] ?>