+++ /dev/null
-<?php
-/**
- * Middleware for selecting the right compressor channel
- *
- *
- * @author Roland Haeder <webmaster@ship-simu.org>
- * @version 0.0
- * @copyright Copyright(c) 2007, 2008 Roland Haeder, this is free software
- * @license GNU GPL 3.0 or any newer version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-class CompressorChannel extends BaseMiddleware {
- // Output handler instance
- private $compressor = null;
-
- // Public constructor
- private function __construct () {
- // Call parent constructor!
- parent::constructor(__CLASS__);
-
- // Set description
- $this->setPartDescr("Komprimierungshandler");
-
- // Create an unique ID
- $this->createUniqueID();
- }
-
- // Create a new compressor channel based a given compression handler
- public final static function createCompressorChannel ($baseDir) {
- // Get new instance
- $cInstance = new CompressorChannel();
-
- // Is the compressor handler set?
- if (
- (is_null($cInstance->getCompressor()))
- || (!is_object($cInstance->getCompressor()))
- || (!method_exists($cInstance->getCompressor(), 'compressStream'))
- || (!method_exists($cInstance->getCompressor(), 'decompressStream'))
- ) {
- // Get a directory pointer
- $dirPointer = FrameworkDirectoryPointer::createFrameworkDirectoryPointer($baseDir);
-
- // Read all directories but no sub directories
- while ($dir = $dirPointer->readDirectoryExcept(array("..", ".", ".htaccess"))) {
- // Is this a class file?
- if ((substr($dir, 0, 6) == "class_") && (substr($dir, -4, 4) == $cInstance->getConfigInstance()->readConfig("php_extension"))) {
- // Get the compressor's name. That's why you must name
- // your files like your classes and also that's why you
- // must keep on class in one file.
- $class = substr($dir, 6, -4);
-
- // Create eval command
- $eval = sprintf("\$tempInstance = %s::create%s();",
- $class,
- $class
- );
-
- // Debug message
- if ((defined('DEBUG_EVAL')) || (defined('DEBUG_ALL'))) $cInstance->getDebugInstance()->output(sprintf("[%s:] Konstruierte PHP-Anweisung: <pre><em>%s</em></pre><br />\n",
- $cInstance->__toString(),
- htmlentities($eval)
- ));
-
- // Run it. This will create an instance to the current class
- eval($eval);
-
- // Is the instance valid? We have the stream handler here
- if ((!is_null($tempInstance)) && (method_exists($tempInstance, 'compressStream')) && (method_exists($tempInstance, 'decompressStream'))) {
- // Okay, this handler is valid
- $cInstance->setCompressor($tempInstance);
-
- // No more searches required because we have found a valid compressor stream
- break;
- }
- }
- }
-
- // Close the directory
- $dirPointer->closeDirectory();
- }
-
- // Check again if there is a compressor
- if (
- (is_null($cInstance->getCompressor()))
- || (!is_object($cInstance->getCompressor()))
- || (!method_exists($cInstance->getCompressor(), 'compressStream'))
- || (!method_exists($cInstance->getCompressor(), 'decompressStream'))
- ) {
- // Set the null compressor handler
- $cInstance->setCompressor(NullCompressor::createNullCompressor());
- }
-
- // Return the compressor instance
- return $cInstance;
- }
-
- /**
- * Getter for compressor instance
- *
- * @return $compressor The compressor instance
- */
- public final function getCompressor () {
- return $this->compressor;
- }
-
- /**
- * Setter for compressor
- *
- * @param $compressorInstance The compressor instance we shall use
- * @return void
- */
- public final function setCompressor (Compressor $compressorInstance) {
- $this->compressor = $compressorInstance;
- }
-
- /**
- * Getter for the file extension of the current compressor
- */
- public final function getCompressorExtension () {
- // Get compressor extension from current compressor
- return $this->getCompressor()->getCompressorExtension();
- }
-}
-
-// [EOF]
-?>