tnhfw / tnh-fw

core/classes/cache/FileCache.php

Spacing +62 added lines, -62 removed lines

@@ -24,7 +24,7 @@ 
 	 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 	*/
 
-	class FileCache implements CacheInterface{
+	class FileCache implements CacheInterface {
 		
 		/**
 		 * Whether to enable compression of the cache data file.
@@ -39,23 +39,23 @@ 
 		private $logger;
 		
 		
-		public function __construct(Log $logger = null){
-			if(! $this->isSupported()){
+		public function __construct(Log $logger = null) {
+			if (!$this->isSupported()) {
 				show_error('The cache for file system is not available. Check the cache directory if is exists or is writable.');
 			}
 			/**
 	         * instance of the Log class
 	         */
-	        if(is_object($logger)){
+	        if (is_object($logger)) {
 	          $this->logger = $logger;
 	        }
-	        else{
-	            $this->logger =& class_loader('Log', 'classes');
+	        else {
+	            $this->logger = & class_loader('Log', 'classes');
 	            $this->logger->setLogger('Library::FileCache');
 	        }
 			
 			//if Zlib extension is not loaded set compressCacheData to false
-			if(! extension_loaded('zlib')){
+			if (!extension_loaded('zlib')) {
 				$this->logger->warning('The zlib extension is not loaded set cache compress data to FALSE');
 				$this->compressCacheData = false;
 			}
@@ -66,17 +66,17 @@ 
 		 * @param  string $key the key to identify the cache data
 		 * @return mixed      the cache data if exists else return false
 		 */
-		public function get($key){
-			$this->logger->debug('Getting cache data for key ['. $key .']');
+		public function get($key) {
+			$this->logger->debug('Getting cache data for key [' . $key . ']');
 			$filePath = $this->getFilePath($key);
-			if(! file_exists($filePath)){
-				$this->logger->info('No cache file found for the key ['. $key .'], return false');
+			if (!file_exists($filePath)) {
+				$this->logger->info('No cache file found for the key [' . $key . '], return false');
 				return false;
 			}
-			$this->logger->info('The cache file [' .$filePath. '] for the key ['. $key .'] exists, check if the cache data is valid');
-			$handle = fopen($filePath,'r');
-			if(! is_resource($handle)){
-				$this->logger->error('Can not open the file cache [' .$filePath. '] for the key ['. $key .'], return false');
+			$this->logger->info('The cache file [' . $filePath . '] for the key [' . $key . '] exists, check if the cache data is valid');
+			$handle = fopen($filePath, 'r');
+			if (!is_resource($handle)) {
+				$this->logger->error('Can not open the file cache [' . $filePath . '] for the key [' . $key . '], return false');
 				return false;
 			}
 			// Getting a shared lock 
@@ -84,20 +84,20 @@ 
 		    $data = file_get_contents($filePath);
       		fclose($handle);
       		$data = @unserialize($this->compressCacheData ? gzinflate($data) : $data);
-      		if (! $data) {
-      			$this->logger->error('Can not unserialize the cache data for the key ['. $key .'], return false');
+      		if (!$data) {
+      			$this->logger->error('Can not unserialize the cache data for the key [' . $key . '], return false');
 		         // If unserializing somehow didn't work out, we'll delete the file
 		         unlink($filePath);
 		         return false;
 	      	}
 	      	if (time() > $data['expire']) {
-	      		$this->logger->info('The cache data for the key ['. $key .'] already expired delete the cache file [' .$filePath. ']');
+	      		$this->logger->info('The cache data for the key [' . $key . '] already expired delete the cache file [' . $filePath . ']');
 		        // Unlinking when the file was expired
 		        unlink($filePath);
 		        return false;
 		     }
-		     else{
-		     	$this->logger->info('The cache not yet expire, now return the cache data for key ['. $key .'], the cache will expire at [' . date('Y-m-d H:i:s', $data['expire']) . ']');
+		     else {
+		     	$this->logger->info('The cache not yet expire, now return the cache data for key [' . $key . '], the cache will expire at [' . date('Y-m-d H:i:s', $data['expire']) . ']');
 		     	return $data['data'];
 		     }
 		}
@@ -110,13 +110,13 @@ 
 		 * @param integer $ttl  the cache life time
 		 * @return boolean true if success otherwise will return false
 		 */
-		public function set($key, $data, $ttl = 0){
+		public function set($key, $data, $ttl = 0) {
 			$expire = time() + $ttl;
-			$this->logger->debug('Setting cache data for key ['. $key .'], time to live [' .$ttl. '], expire at [' . date('Y-m-d H:i:s', $expire) . ']');
+			$this->logger->debug('Setting cache data for key [' . $key . '], time to live [' . $ttl . '], expire at [' . date('Y-m-d H:i:s', $expire) . ']');
 			$filePath = $this->getFilePath($key);
-			$handle = fopen($filePath,'w');
-			if(! is_resource($handle)){
-				$this->logger->error('Can not open the file cache [' .$filePath. '] for the key ['. $key .'], return false');
+			$handle = fopen($filePath, 'w');
+			if (!is_resource($handle)) {
+				$this->logger->error('Can not open the file cache [' . $filePath . '] for the key [' . $key . '], return false');
 				return false;
 			}
 			flock($handle, LOCK_EX); // exclusive lock, will get released when the file is closed
@@ -129,13 +129,13 @@ 
 									)
 								);		   
 		    $result = fwrite($handle, $this->compressCacheData ? gzdeflate($cacheData, 9) : $cacheData);
-		    if(! $result){
-		    	$this->logger->error('Can not write cache data into file [' .$filePath. '] for the key ['. $key .'], return false');
+		    if (!$result) {
+		    	$this->logger->error('Can not write cache data into file [' . $filePath . '] for the key [' . $key . '], return false');
 		    	fclose($handle);
 		    	return false;
 		    }
-		    else{
-		    	$this->logger->info('Cache data saved into file [' .$filePath. '] for the key ['. $key .']');
+		    else {
+		    	$this->logger->info('Cache data saved into file [' . $filePath . '] for the key [' . $key . ']');
 		    	fclose($handle);
 				chmod($filePath, 0640);
 				return true;
@@ -149,16 +149,16 @@ 
 		 * @return boolean      true if the cache is delete, false if can't delete 
 		 * the cache or the cache with the given key not exist
 		 */
-		public function delete($key){
-			$this->logger->debug('Deleting of cache data for key [' .$key. ']');
+		public function delete($key) {
+			$this->logger->debug('Deleting of cache data for key [' . $key . ']');
 			$filePath = $this->getFilePath($key);
-			$this->logger->info('The file path for the key [' .$key. '] is [' .$filePath. ']');
-			if(! file_exists($filePath)){
+			$this->logger->info('The file path for the key [' . $key . '] is [' . $filePath . ']');
+			if (!file_exists($filePath)) {
 				$this->logger->info('This cache file does not exists skipping');
 				return false;
 			}
-			else{
-				$this->logger->info('Found cache file [' .$filePath. '] remove it');
+			else {
+				$this->logger->info('Found cache file [' . $filePath . '] remove it');
 	      		unlink($filePath);
 				return true;
 			}
@@ -172,25 +172,25 @@ 
 		 * 'expire' => expiration time of the cache (Unix timestamp),
 		 * 'ttl' => the time to live of the cache in second
 		 */
-		public function getInfo($key){
-			$this->logger->debug('Getting of cache info for key [' .$key. ']');
+		public function getInfo($key) {
+			$this->logger->debug('Getting of cache info for key [' . $key . ']');
 			$filePath = $this->getFilePath($key);
-			$this->logger->info('The file path for the key [' .$key. '] is [' .$filePath. ']');
-			if(! file_exists($filePath)){
+			$this->logger->info('The file path for the key [' . $key . '] is [' . $filePath . ']');
+			if (!file_exists($filePath)) {
 				$this->logger->info('This cache file does not exists skipping');
 				return false;
 			}
-			else{
-				$this->logger->info('Found cache file [' .$filePath. '] check the validity');
+			else {
+				$this->logger->info('Found cache file [' . $filePath . '] check the validity');
 	      		$data = file_get_contents($filePath);
 				$data = @unserialize($this->compressCacheData ? gzinflate($data) : $data);
-				if(! $data){
+				if (!$data) {
 					$this->logger->warning('Can not unserialize the cache data for file [' . $filePath . ']');
 					return false;
 				}
-				else{
+				else {
 					$this->logger->info('This cache data is OK check for expire');
-					if(isset($data['expire']) && $data['expire'] > time()){
+					if (isset($data['expire']) && $data['expire'] > time()) {
 						$this->logger->info('This cache not yet expired return cache informations');
 						$info = array(
 							'mtime' => $data['mtime'],
@@ -199,7 +199,7 @@ 
 							);
 						return $info;
 					}
-					else{
+					else {
 						$this->logger->info('This cache already expired return false');
 						return false;
 					}
@@ -211,26 +211,26 @@ 
 		/**
 		 * Used to delete expired cache data
 		 */
-		public function deleteExpiredCache(){
+		public function deleteExpiredCache() {
 			$this->logger->debug('Deleting of expired cache files');
 			$list = glob(CACHE_PATH . '*.cache');
-			if(! $list){
+			if (!$list) {
 				$this->logger->info('No cache files were found skipping');
 			}
-			else{
+			else {
 				$this->logger->info('Found [' . count($list) . '] cache files to remove if expired');
 				foreach ($list as $file) {
 					$this->logger->debug('Processing the cache file [' . $file . ']');
 					$data = file_get_contents($file);
 		      		$data = @unserialize($this->compressCacheData ? gzinflate($data) : $data);
-		      		if(! $data){
+		      		if (!$data) {
 		      			$this->logger->warning('Can not unserialize the cache data for file [' . $file . ']');
 		      		}
-		      		else if(time() > $data['expire']){
+		      		else if (time() > $data['expire']) {
 		      			$this->logger->info('The cache data for file [' . $file . '] already expired remove it');
 		      			unlink($file);
 		      		}
-		      		else{
+		      		else {
 		      			$this->logger->info('The cache data for file [' . $file . '] not yet expired skip it');
 		      		}
 				}
@@ -240,13 +240,13 @@ 
 		/**
 		 * Remove all file from cache folder
 		 */
-		public function clean(){
+		public function clean() {
 			$this->logger->debug('Deleting of all cache files');
 			$list = glob(CACHE_PATH . '*.cache');
-			if(! $list){
+			if (!$list) {
 				$this->logger->info('No cache files were found skipping');
 			}
-			else{
+			else {
 				$this->logger->info('Found [' . count($list) . '] cache files to remove');
 				foreach ($list as $file) {
 					$this->logger->debug('Processing the cache file [' . $file . ']');
@@ -258,7 +258,7 @@ 
 	    /**
 	     * @return boolean
 	     */
-	    public function isCompressCacheData(){
+	    public function isCompressCacheData() {
 	        return $this->compressCacheData;
 	    }
 
@@ -267,14 +267,14 @@ 
 	     *
 	     * @return self
 	     */
-	    public function setCompressCacheData($status = true){
+	    public function setCompressCacheData($status = true) {
 			//if Zlib extension is not loaded set compressCacheData to false
-			if($status === true && ! extension_loaded('zlib')){
+			if ($status === true && !extension_loaded('zlib')) {
 				
 				$this->logger->warning('The zlib extension is not loaded set cache compress data to FALSE');
 				$this->compressCacheData = false;
 			}
-			else{
+			else {
 				$this->compressCacheData = $status;
 			}
 			return $this;
@@ -285,7 +285,7 @@ 
 		 *
 		 * @return bool
 		 */
-		public function isSupported(){
+		public function isSupported() {
 			return CACHE_PATH && is_dir(CACHE_PATH) && is_writable(CACHE_PATH);
 		}
 
@@ -293,7 +293,7 @@ 
 	     * Return the Log instance
 	     * @return Log
 	     */
-	    public function getLogger(){
+	    public function getLogger() {
 	      return $this->logger;
 	    }
 
@@ -301,7 +301,7 @@ 
 	     * Set the log instance
 	     * @param Log $logger the log object
 	     */
-	    public function setLogger(Log $logger){
+	    public function setLogger(Log $logger) {
 	      $this->logger = $logger;
 	      return $this;
 	    }
@@ -312,7 +312,7 @@ 
 		* @param $key the cache item key
 		* @return string the full cache file path for this key
 		*/
-		private function getFilePath($key){
+		private function getFilePath($key) {
 			return CACHE_PATH . md5($key) . '.cache';
 		}
 	}