--- /dev/null
+<?php
+// Own namespace
+namespace CoreFramework\Compressor\Null;
+
+// Import framework stuff
+use CoreFramework\Compressor\Compressor;
+use CoreFramework\Object\BaseFrameworkSystem;
+
+/**
+ * Null compression and decompression class
+ *
+ * @author Roland Haeder <webmaster@shipsimu.org>
+ * @version 0.0.0
+ * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2017 Core Developer Team
+ * @license GNU GPL 3.0 or any newer version
+ * @link http://www.shipsimu.org
+ *
+ * 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 NullCompressor extends BaseFrameworkSystem implements Compressor {
+ /**
+ * Protected constructor
+ *
+ * @return void
+ */
+ protected function __construct () {
+ // Call parent constructor!
+ parent::__construct(__CLASS__);
+ }
+
+ /**
+ * Create a new compressor channel based a given compression handler
+ *
+ * @return $compressorInstance An instance of this class
+ */
+ public static final function createNullCompressor () {
+ // Get new instance
+ $compressorInstance = new NullCompressor();
+
+ // Return the compressor instance
+ return $compressorInstance;
+ }
+
+ /**
+ * Null 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);
+ } // END - if
+
+ // Return the compressed stream
+ return $streamData;
+ }
+
+ /**
+ * Null 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);
+ } // END - if
+
+ // Return the decompressed stream
+ return $streamData;
+ }
+
+ /**
+ * Getter for the file extension of this compressor
+ *
+ * @return $string Returns always 'null'
+ */
+ public final function getCompressorExtension () {
+ return 'null';
+ }
+
+}