From: Roland Häder <roland@mxchange.org>
Date: Wed, 31 Aug 2011 20:29:04 +0000 (+0000)
Subject: Added ZlibCompressor class, GzipCompressor used zlib functions by mistake
X-Git-Url: https://git.mxchange.org/?p=core.git;a=commitdiff_plain;h=907685768720562b2776d0f80ed832e0bd6e11a2

Added ZlibCompressor class, GzipCompressor used zlib functions by mistake
---

diff --git a/.gitattributes b/.gitattributes
index 679412da..c2dc9ba6 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -280,6 +280,7 @@ inc/classes/main/compressor/.htaccess svneol=native#text/plain
 inc/classes/main/compressor/class_Bzip2Compressor.php svneol=native#text/plain
 inc/classes/main/compressor/class_GzipCompressor.php svneol=native#text/plain
 inc/classes/main/compressor/class_NullCompressor.php svneol=native#text/plain
+inc/classes/main/compressor/class_ZlibCompressor.php svneol=native#text/plain
 inc/classes/main/console/.htaccess svneol=native#text/plain
 inc/classes/main/console/class_ConsoleTools.php svneol=native#text/plain
 inc/classes/main/container/.htaccess svneol=native#text/plain
diff --git a/inc/classes/main/compressor/class_ZlibCompressor.php b/inc/classes/main/compressor/class_ZlibCompressor.php
new file mode 100644
index 00000000..695e400d
--- /dev/null
+++ b/inc/classes/main/compressor/class_ZlibCompressor.php
@@ -0,0 +1,99 @@
+<?php
+/**
+ * ZLIB compression and decompression class
+ *
+ * @author		Roland Haeder <webmaster@ship-simu.org>
+ * @version		0.0.0
+ * @copyright	Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2011 Core Developer Team
+ * @license		GNU GPL 3.0 or any newer version
+ * @link		http://www.ship-simu.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 ZlibCompressor 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 createZlibCompressor () {
+		// Routines not found by default
+		$compressorInstance = NULL;
+
+		// Get new instance
+		if ((function_exists('gzcompress')) && (function_exists('gzuncompress'))) {
+			// Compressor can maybe be used
+			$compressorInstance = new ZlibCompressor();
+		} // END - if
+
+		// Return the compressor instance
+		return $compressorInstance;
+	}
+
+	/**
+	 * ZLIB 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 gzcompress($streamData, 1);
+	}
+
+	/**
+	 * ZLIB 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 gzuncompress($streamData);
+	}
+
+	/**
+	 * Getter for the file extension of this compressor
+	 *
+	 * @return	$string		Returns always 'gz'
+	 */
+	public final function getCompressorExtension () {
+		return 'z';
+	}
+}
+
+// [EOF]
+?>