Move CacheTools in TimeUtils

Benjamin Renard
1 parent 2190f380
Showing 4 changed files with 264 additions and 260 deletions Show diff stats
php/classes/CatalogCacheMgr.php
php/classes/IntervalCacheObject.php
php/classes/TimeTableCacheMgr.php
php/classes/TimeUtils.php
@@ -3,14 +3,14 @@
 /**
  * @class CatalogCacheMgr
  */
- 
- 
+
+
 class CatIntervalCacheObject extends IntervalCacheObject
 {
-	// for catalog   
+	// for catalog
 	private $params      = array();
-	
-	public function toArray() 
+
+	public function toArray()
 	{
 		$result = array(
 			"cacheId" => $this->id,
@@ -19,54 +19,54 @@ class CatIntervalCacheObject extends IntervalCacheObject
 		);
 		if ($this->isNew)
 			$result["isNew"] = true;
-			
+
 		if ($this->isModified)
 			$result["isModified"] = true;
-			
-		for ($i = 0; $i < count($this->params); $i++) 
+
+		for ($i = 0; $i < count($this->params); $i++)
 		{
 			$paramObject = array();
 			$index = 'param'.sprintf("%d",$i+2);
-			$result[$index] = $this->params[$i];		    
-		}		 
-		return $result; 
+			$result[$index] = $this->params[$i];
+		}
+		return $result;
 	}
-	// for catalog 
-	public function setParams($params) 
+	// for catalog
+	public function setParams($params)
 	{
-		$this->params = $params;		
+		$this->params = $params;
 	}
-	
-	public function getParams() 
-	{		  	   
-	   return $this->params;		
+
+	public function getParams()
+	{
+	   return $this->params;
 	}
-			
-	public function writeBin($handle, $paramsNumber, $paramsSizes, $paramsTypes) 
+
+	public function writeBin($handle, $paramsNumber, $paramsSizes, $paramsTypes)
 	{
 		fwrite($handle,pack('L6',$this->id,$this->index,$this->start,$this->stop,$this->isNew,$this->isModified));
-		for ($i = 0; $i < $paramsNumber; $i++) 
+		for ($i = 0; $i < $paramsNumber; $i++)
 		{
 			if ($paramsTypes[$i] == '2') // string
 			{
 				fwrite($handle,pack('d', strlen($this->params[$i])));
 				fwrite($handle, $this->params[$i],strlen($this->params[$i]));
 			}
-			else 
+			else
 			{
-				if ($paramsTypes[$i] == '1') 
-						$paramString = CacheTools::iso2stamp($this->params[$i]);
+				if ($paramsTypes[$i] == '1')
+						$paramString = TimeUtils::iso2stamp($this->params[$i]);
 				else
 						$paramString = $this->params[$i];
-		
+
 				$paramArray =  explode(',',$paramString);
 				for ($j = 0; $j < $paramsSizes[$i]; $j++) fwrite($handle,pack('d', $paramArray[$j]));
 			}
-		}	        
+		}
 	}
-	
-	public function loadBin($handle, $paramsNumber, $paramsSizes, $paramsTypes) 
+
+	public function loadBin($handle, $paramsNumber, $paramsSizes, $paramsTypes)
 	{
 		$array = unpack('L6int',fread($handle,6*4));
 		$this->id         = $array['int1'];
@@ -75,45 +75,45 @@ class CatIntervalCacheObject extends IntervalCacheObject
 		$this->stop       = $array['int4'];
 		$this->isNew      = $array['int5'];
 		$this->isModified = $array['int6'];
-		
+
 		for ($i = 0; $i < $paramsNumber; $i++) {
 		  $this->params[$i] = null;
-		  
-		  for ($j = 0; $j < $paramsSizes[$i]; $j++) 
+
+		  for ($j = 0; $j < $paramsSizes[$i]; $j++)
 		  {
 				$val = unpack('dval',fread($handle,8));
-				
+
 				if ($paramsTypes[$i] == '2') // string
 				{
 					$this->params[$i] = fread($handle,$val['val']);
 				}
-				else 
+				else
 				{
 					if ($paramsTypes[$i] == '1')
-						$this->params[$i] .= CacheTools::stamp2iso($val['val']);
-					else 
+						$this->params[$i] .= TimeUtils::stamp2iso($val['val']);
+					else
 						$this->params[$i] .= $val['val'];
-						
+
 					if ($j != $paramsSizes[$i] - 1) $this->params[$i] .= ',';
 				}
-			}		       
+			}
 		}
-		 
+
 	}
-	
-	public function dump() 
+
+	public function dump()
 	{
 		echo " => Interval : id = ".$this->id.", index = ".$this->index.", start = ".$this->start.", stop = ".$this->stop.", isNew = ".$this->isNew.", isModified = ".$this->isModified.PHP_EOL;
 	}
-} 
- 
+}
+
 class CatalogCacheObject extends TimeTableCacheObject
 {
 	private $paramsNumber;
 	private $paramsSizes = array();
 	private $paramsTypes = array();
-        
-	public function addInterval($startIso, $stopIso, $params, $isNew = false, $index = -1) 
+
+	public function addInterval($startIso, $stopIso, $params, $isNew = false, $index = -1)
 	{
 		$interval = new CatIntervalCacheObject($this->lastId, count($this->intervals));
 		++$this->lastId;
@@ -124,88 +124,88 @@ class CatalogCacheObject extends TimeTableCacheObject
 		$interval->setIsNew($isNew);
 		array_push($this->intervals, $interval);
-		
+
 		if ($index < 0)
 			array_push($this->indexes, count($this->intervals) - 1);
 		else
 			array_splice($this->indexes, $index, 0, array(count($this->intervals) - 1));
-			
+
 		if ($isNew)
 			$this->isModified = true;
-			
+
 		return $interval;
 	}
-    
+
 	public function setParamsNumber($number)
 	{
 	    $this->paramsNumber = $number;
 	}
-	
+
 	public function setParamsSizes($params)
 	{
-		for ($i = 0; $i < $this->paramsNumber; $i++)	         
-			$this->paramsSizes[$i] = $params[$i]['size'];		   
+		for ($i = 0; $i < $this->paramsNumber; $i++)
+			$this->paramsSizes[$i] = $params[$i]['size'];
 	}
-	
+
 	public function setParamsTypes($params)
 	{
-		for ($i = 0; $i < $this->paramsNumber; $i++)	         
-			$this->paramsTypes[$i] = $params[$i]['type'];		   
+		for ($i = 0; $i < $this->paramsNumber; $i++)
+			$this->paramsTypes[$i] = $params[$i]['type'];
 	}
-	
-	public function writeBin($handle) 
+
+	public function writeBin($handle)
 	{
 		//Magic key ("TTC")
 		fwrite($handle,pack('C3',ord('T'),ord('T'),ord('C')));
-		
+
 		//Version
 		fwrite($handle,pack('L',TimeTableCacheObject::$format_version));
-	
+
 		//Token
 		for ($i = 0; $i < TimeTableCacheObject::$token_len; ++$i)
 			fwrite($handle,pack('C',ord($this->token[$i])));
-	  
+
 		//Modified
 		fwrite($handle,pack('L',$this->isModified));
-	  
+
 		//Filter
 		$this->filter->writeBin($handle);
-	  
+
 		//Sort
 		$this->sort->writeBin($handle);
-	  
+
 		//Params Number
 		fwrite($handle,pack('L',$this->paramsNumber));
-	
+
 		//Params Sizes
-		for ($i = 0; $i < $this->paramsNumber; $i++) 
+		for ($i = 0; $i < $this->paramsNumber; $i++)
 			fwrite($handle,pack('L',$this->paramsSizes[$i]));
-			
+
 		//Params Types
-		for ($i = 0; $i < $this->paramsNumber; $i++) 
+		for ($i = 0; $i < $this->paramsNumber; $i++)
 			fwrite($handle,pack('L',$this->paramsTypes[$i]));
-             
+
 		//Intervals
 		fwrite($handle,pack('L2', count($this->intervals), $this->lastId));
-	  
+
 		foreach($this->intervals as $interval)
 			$interval->writeBin($handle,$this->paramsNumber,$this->paramsSizes, $this->paramsTypes);
-	  
+
 		//Indexes
 		fwrite($handle,pack('L',count($this->indexes)));
 		foreach($this->indexes as $index)
 			fwrite($handle,pack('L',$index));
 	}
-    
+
     public function loadBin($handle) {
 		//Magic key ("TTC")
 		if (!$res = unpack('C3key',fread($handle,3)))
 			return false;
-		
+
 		if (($res['key1'] != ord('T')) || ($res['key2'] != ord('T')) || ($res['key3'] != ord('C')))
 			return false;
-		
+
 		//Version
 		if (!$res = unpack('Lversion',fread($handle,4)))
 			return false;
@@ -221,23 +221,23 @@ class CatalogCacheObject extends TimeTableCacheObject
 			$token .= chr($res['token']);
 		}
 		$this->token = $token;
-		
+
 		//Modified
 		if (!$res = unpack('Lmodified',fread($handle,4)))
 			return false;
 		$this->isModified = $res['modified'];
-		
+
 		//Filter
 		$this->filter->loadBin($handle);
-		
+
 		//Sort
 		$this->sort->loadBin($handle);
-		
+
 		//ParamsNumber
 		if (!$res = unpack('Lnumber',fread($handle,4)))
 			return false;
 		$this->paramsNumber = $res['number'];
-	
+
 		//ParamsSizes
 		for ($i = 0; $i < $this->paramsNumber; $i++) {
 		  if (!$res = unpack('Lsize',fread($handle,4)))
@@ -254,14 +254,14 @@ class CatalogCacheObject extends TimeTableCacheObject
 		$res = unpack('L2data',fread($handle,2*4));
 		$nbIntervals  = $res['data1'];
 		$this->lastId = $res['data2'];
-		
+
 		for ($i = 0; $i < $nbIntervals; ++$i)
 		{
 			$interval = new CatIntervalCacheObject(-1);
-			$interval->loadBin($handle, $this->paramsNumber, $this->paramsSizes, $this->paramsTypes);			
+			$interval->loadBin($handle, $this->paramsNumber, $this->paramsSizes, $this->paramsTypes);
 			array_push($this->intervals, $interval);
 		}
-		
+
 		//Indexes
 		$res = unpack('Ldata',fread($handle,4));
 		$nbIndexes  = $res['data'];
@@ -270,29 +270,29 @@ class CatalogCacheObject extends TimeTableCacheObject
 			$res = unpack('Lindex',fread($handle,4));
 			array_push($this->indexes, $res['index']);
 		}
-		
+
 		return true;
 	}
-	
-	public function modifyIntervalFromId($obj) {	
-		
+
+	public function modifyIntervalFromId($obj) {
+
 		foreach ($this->intervals as $interval)
 		{
 			if ($interval->getId() == $obj->cacheId)
-			{				
-				foreach((array)$obj as $key => $val) {				
-				 					
+			{
+				foreach((array)$obj as $key => $val) {
+
 					if ($key == 'start')
 						$interval->setStartFromISO($val);
 					else if ($key == 'stop')
-						$interval->setStopFromISO($val); 	
+						$interval->setStopFromISO($val);
 					else {
 					       if (strpos($key, 'param') === false)
 							continue;
 						$params = $interval->getParams();
 						$paramIndex = (int)substr($key,5);
 						$params[$paramIndex-2] = $val;
-						$interval->setParams($params);						 
+						$interval->setParams($params);
 					}
 				}
 				$interval->setIsModified(true);
@@ -300,33 +300,33 @@ class CatalogCacheObject extends TimeTableCacheObject
 				return true;
 			}
 		}
-		
+
 		return false;
 	}
 }
-class CatalogCacheMgr extends TimeTableCacheMgr 
+class CatalogCacheMgr extends TimeTableCacheMgr
 {
-		
+
 	protected static $cache_file = "cacheCat";
-	
+
 	protected $ttMgr = null;
 	protected $cache = null;
 	function __construct() {
-	         	        
+
 		$this->ttMgr = new CatalogMgr();
 	}
-	
-	
+
+
 	public function initFromTmpObject($folderId, $name) {
-	 
-		//Create new cache		 
+
+		//Create new cache
 		$this->cache = new CatalogCacheObject();
 		//Load intervals from TmpObject file (Statistics Module)
 		$intervals_res = $this->ttMgr->getTmpObject($folderId, $name);
- 
+
 		if (!isset($intervals_res))
 			return array('success' => false, 'message' => 'Cannot get Tmp Object');
@@ -336,28 +336,28 @@ class CatalogCacheMgr extends TimeTableCacheMgr
 			{
 				//Add interval
 				$this->cache->addInterval($interval['start'], $interval['stop'], $interval['paramTable']);
-				
+
 			}
 		}
 		$this->cache->setIsModified(true);
-		
+
 		$paramHeaders = $intervals_res['parameters'];
-		
+
 		$this->cache->setParamsNumber(count($paramHeaders));
 		$this->cache->setParamsSizes($paramHeaders);
 		$this->cache->setParamsTypes($paramHeaders);
-		
-		unset($intervals_res);		
-		
+
+		unset($intervals_res);
+
 		//Update cache
 		$this->cache->updateIndexes();
 		//Save cache file
-		return array('success'=>$this->saveToFile(), 'token'=>$this->cache->getToken(), 
+		return array('success'=>$this->saveToFile(), 'token'=>$this->cache->getToken(),
 		             'status'=>$this->cache->getStatus(), 'parameters'=>$paramHeaders);
 	}
-	
+
 	public function initFromUploadedFile($name, $format)
 	{
 		//Create new cache
@@ -380,29 +380,29 @@ class CatalogCacheMgr extends TimeTableCacheMgr
 		$this->cache->setIsModified(true);
 		$paramHeaders = $intervals_res['parameters'];
-		
+
 		$this->cache->setParamsNumber(count($paramHeaders));
 		$this->cache->setParamsSizes($paramHeaders);
 		$this->cache->setParamsTypes($paramHeaders);
-		
+
 		unset($intervals_res);
-		
+
 		//Update cache
 		$this->cache->updateIndexes();
 		//Save cache file
-		return array('success'=>$this->saveToFile(), 'token'=>$this->cache->getToken(), 
+		return array('success'=>$this->saveToFile(), 'token'=>$this->cache->getToken(),
 		'status'=>$this->cache->getStatus(), 'parameters'=>$paramHeaders);
 	}
-	
-	public function initFromTT($id, $typeTT) 
+
+	public function initFromTT($id, $typeTT)
 	{
 		//Create new cache
 		$this->cache = new CatalogCacheObject();
 		//Load intervals from catalog file and add to cache
 		$intervals_res = $this->ttMgr->loadIntervalsFromTT($id,$typeTT);
-		
+
 		if (!$intervals_res['success'])
 			return $intervals_res;
@@ -411,13 +411,13 @@ class CatalogCacheMgr extends TimeTableCacheMgr
 			//Add interval
 			$this->cache->addInterval($interval['start'], $interval['stop'], $interval['paramTable']);
 		}
-		
+
 		$paramHeaders = $intervals_res['parameters'];
-	 
+
 		$this->cache->setParamsNumber(count($paramHeaders));
 		$this->cache->setParamsSizes($paramHeaders);
 		$this->cache->setParamsTypes($paramHeaders);
-		
+
 		unset($intervals_res);
 		//Update cache
@@ -429,8 +429,8 @@ class CatalogCacheMgr extends TimeTableCacheMgr
 	}
-	protected function loadFromFile() 
-	{	
+	protected function loadFromFile()
+	{
 		if (!file_exists($this->getCacheFilePath()))
 			return false;
 		$this->cache = new CatalogCacheObject();
@@ -445,30 +445,30 @@ class CatalogCacheMgr extends TimeTableCacheMgr
 		fclose($handle);
 	return $result;
 	}
-	
-	protected function getCacheFilePath() 
+
+	protected function getCacheFilePath()
 	{
 		return USERTTDIR.(self::$cache_file);
 	}
-	public function saveInTT($id, $action, $token) 
-	{	
+	public function saveInTT($id, $action, $token)
+	{
 		if (!$this->loadFromFile())
 			return array('success' => false, 'message' => 'Cannot load cache file');
 		if ($token != $this->cache->getToken())
 			return array('success' => false, 'message' => 'Cache token check error');
-		
+
 		$this->cache->updateIndexes();
 		$this->saveToFile();
-		
+
 		$intervals = $this->cache->getIntervalsArray(NULL,NULL,true);
-		
+
 		$this->cache->reset();
 	return $this->ttMgr->saveIntervals($id, $intervals, $action);
 	}
-	
+
 	public function addInterval($index, $start, $stop, $params) {
 		if (!$this->loadFromFile())
 			return array('success' => false, 'message' => 'Cannot load cache file');
@@ -481,42 +481,42 @@ class CatalogCacheMgr extends TimeTableCacheMgr
 		if (!isset($stop))
 			$stop = date('Y-m-d\TH:i:s');
-			
+
 		if (!isset($params))
-			$params = [];		 		
-		
+			$params = [];
+
 		$this->cache->addInterval($start, $stop, $params, true, $index);
-		
+
 		//$this->cache->updateIndexes();
-		
+
 		$this->saveToFile();
-		
+
 		return array('success' => true, 'index' => $index, 'status' => $this->cache->getStatus());
 	}
-	
+
 	public function modifyIntervalFromId($obj) {
 		if (!$this->loadFromFile())
 			return array('success' => false, 'message' => 'Cannot load cache file');
 		$this->cache->modifyIntervalFromId($obj);
-		
+
 		$this->saveToFile();
-		
+
 		return array('success' => true, 'status' => $this->cache->getStatus());
 	}
-	
+
 	public function initTTCache($nparams) {
 		//Create new cache
 		$this->cache = new CatalogCacheObject();
 		$this->cache->setParamsNumber((int)$nparams);
 		$paramHeaders = array();
-		
+
 		for ($i = 0; $i < (int)$nparams; $i++) {
 			$paramHeaders[$i]['id'] = 'id_'.(string)($i+1);
 			$paramHeaders[$i]['name'] = 'param_'.(string)($i+1);
 			$paramHeaders[$i]['size'] = 1;
 			$paramHeaders[$i]['type'] = 'Float';
-			
+
 		}
 		$this->cache->setParamsSizes($paramHeaders);
 		$this->cache->setParamsTypes($paramHeaders);
@@ -525,4 +525,4 @@ class CatalogCacheMgr extends TimeTableCacheMgr
 			     'status' => $this->cache->getStatus(), 'parameters' => $paramHeaders);
 	}
    }
-?>
 \ No newline at end of file
+?>
@@ -16,11 +16,11 @@ class IntervalCacheObject
 	public function getId() {
 		return $this->id;
 	}
-	
+
 	public function getIndex() {
 		return $this->index;
 	}
-	
+
 	public function setIndex($index) {
 		$this->index = $index;
 	}
@@ -28,35 +28,35 @@ class IntervalCacheObject
 	public function getStartToStamp() {
 		return $this->start;
 	}
-	
+
 	public function getStartToISO() {
-		return CacheTools::stamp2iso($this->start);
+		return TimeUtils::stamp2iso($this->start);
 	}
 	public function setStartFromStamp($stamp) {
 		$this->start = $stamp;
 	}
-	
+
 	public function setStartFromISO($iso) {
-		$this->start = CacheTools::iso2stamp($iso);
+		$this->start = TimeUtils::iso2stamp($iso);
 	}
 	public function getStopToStamp() {
 		return $this->stop;
 	}
-	
+
 	public function getStopToISO() {
-		return CacheTools::stamp2iso($this->stop);
+		return TimeUtils::stamp2iso($this->stop);
 	}
 	public function setStopFromStamp($stamp) {
 		$this->stop = $stamp;
 	}
-	
+
 	public function setStopFromISO($iso) {
-		$this->stop = CacheTools::iso2stamp($iso);
+		$this->stop = TimeUtils::iso2stamp($iso);
 	}
-	
+
 	public function getDuration() {
 		return ($this->stop-$this->start);
 	}
@@ -76,7 +76,7 @@ class IntervalCacheObject
 	public function setIsNew($isNew) {
 		$this->isNew = $isNew;
 	}
-	
+
 	public function toArray() {
 		$result = array(
 			"cacheId" => $this->id,
@@ -87,16 +87,16 @@ class IntervalCacheObject
 			$result["isNew"] = true;
 		if ($this->isModified)
 			$result["isModified"] = true;
-		
+
 		return $result;
 	}
-	
-	
+
+
 	public function writeBin($handle) {
 		fwrite($handle,pack('L6',$this->id,$this->index,$this->start,$this->stop,$this->isNew,$this->isModified));
 	}
-	
+
 	public function loadBin($handle) {
 		$array = unpack('L6int',fread($handle,6*4));
 		$this->id         = $array['int1'];
@@ -106,7 +106,7 @@ class IntervalCacheObject
 		$this->isNew      = $array['int5'];
 		$this->isModified = $array['int6'];
 	}
-	
+
 	public function dump() {
 		echo " => Interval : id = ".$this->id.", index = ".$this->index.", start = ".$this->start.", stop = ".$this->stop.", isNew = ".$this->isNew.", isModified = ".$this->isModified.PHP_EOL;
 	}
 <?php
-class CacheTools
-{
-	public static function iso2stamp($iso) {
-		try {
-			$time = new DateTime($iso);
-		}
-		catch (Exception $e) {
-			$time = new DateTime('1970-01-01T00:00:00Z');
-		}
-		$stamp = $time->format('U');
-		unset($time);
-		return $stamp;
-	}
-	
-	public static function stamp2iso($stamp) {
-		return date('Y-m-d\TH:i:s',$stamp);
-	}
-}
 class SortPartCacheObject
 {
@@ -26,31 +8,31 @@ class SortPartCacheObject
 	public static $TYPE_DURATION_SEC  = 3;
 	public static $TYPE_DURATION_MIN  = 4;
 	public static $TYPE_DURATION_HOUR = 5;
-	
+
 	public static $DIRECTION_UNKNOWN = 0;
 	public static $DIRECTION_ASC     = 1;
 	public static $DIRECTION_DES     = 2;
-	
+
 	protected $type;
 	protected $dir;
-	
+
 	function __construct() {
 		$this->type = self::$TYPE_UNKNOWN;
 		$this->dir  = self::$DIRECTION_UNKNOWN;
 	}
-	
+
 	public function getType() {
 		return $this->type;
 	}
-	
+
 	public function getDir() {
 		return $this->dir;
 	}
-	
+
 	public function isSame($part) {
 		return (($this->type == $part->getType()) && ($this->dir == $part->getDir()));
 	}
-	
+
 	public function compare($interval_a, $interval_b) {
 		switch ($this->type) {
 			case self::$TYPE_START :
@@ -59,7 +41,7 @@ class SortPartCacheObject
 						case self::$DIRECTION_ASC :
 							return ($interval_b->getStartToStamp() - $interval_a->getStartToStamp());
 						default :
-							return ($interval_a->getStartToStamp() - $interval_b->getStartToStamp());	
+							return ($interval_a->getStartToStamp() - $interval_b->getStartToStamp());
 					}
 				}
 				break;
@@ -90,7 +72,7 @@ class SortPartCacheObject
 		}
 		return 0;
 	}
-	
+
 	public function loadFromObject($part_obj) {
 		switch ($part_obj->property)
 		{
@@ -112,7 +94,7 @@ class SortPartCacheObject
 			default:
 				$this->type = self::$TYPE_UNKNOWN;
 		}
-	
+
 		switch ($part_obj->direction)
 		{
 			case 'ASC' :
@@ -125,17 +107,17 @@ class SortPartCacheObject
 				$this->dir = self::$DIRECTION_UNKNOWN;
 		}
 	}
-	
+
 	public function writeBin($handle) {
 		fwrite($handle,pack('L2',$this->type,$this->dir));
 	}
-	
+
 	public function loadBin($handle) {
 		$res = unpack('L2data',fread($handle,4*2));
 		$this->type = $res['data1'];
 		$this->dir   = $res['data2'];
 	}
-	
+
 	public function dump() {
 		echo "   => SortPartCacheObject : type = ";
 		switch ($this->type)
@@ -202,7 +184,7 @@ class SortCacheObject
 			array_push($this->parts, $part);
 		}
 	}
-	
+
 	public function isSameFromObject($sort_obj) {
 		$sort = new SortCacheObject();
 		$sort->loadFromObject($sort_obj);
@@ -221,23 +203,23 @@ class SortCacheObject
 				return false;
 			}
 		}
-			
+
 		return true;
 	}
 	public function apply($intervals) {
 		$sorted_indexes = array();
-		
+
 		global $global_parts, $global_intervals;
 		$global_parts = $this->parts;
 		$global_intervals = $intervals;
-		
+
 		foreach ($intervals as $interval)
 			array_push($sorted_indexes, $interval->getIndex());
-		
+
 		if (count($global_parts) == 0)
 			return $sorted_indexes;
-		
+
 		usort($sorted_indexes, function ($index_a, $index_b) {
 			global $global_parts, $global_intervals;
 			foreach ($global_parts as $part)
@@ -284,38 +266,38 @@ class FilterPartCacheObject
 	public static $TYPE_DURATION_SEC  = 3;
 	public static $TYPE_DURATION_MIN  = 4;
 	public static $TYPE_DURATION_HOUR = 5;
-	
+
 	public static $OPERATION_UNKNOWN   = 0;
 	public static $OPERATION_LT        = 1;
 	public static $OPERATION_GT        = 2;
 	public static $OPERATION_EQ        = 3;
-	
+
 	protected $type;
 	protected $op;
 	protected $value;
-	
+
 	function __construct() {
 		$this->type  = self::$TYPE_UNKNOWN;
 		$this->op    = self::$OPERATION_UNKNOWN;
 		$this->value = 0.;
 	}
-	
+
 	public function getType() {
 		return $this->type;
 	}
-	
+
 	public function getOp() {
 		return $this->op;
 	}
-	
+
 	public function getValue() {
 		return $this->value;
 	}
-	
+
 	public function isSame($part) {
 		return (($this->type == $part->getType()) && ($this->op == $part->getOp()) && ($this->value == $part->getValue()));
 	}
-	
+
 	public function toFiltered($interval) {
 		switch ($this->type) {
 			case self::$TYPE_START :
@@ -371,17 +353,17 @@ class FilterPartCacheObject
 				return false;
 		}
 	}
-	
+
 	public function loadFromObject($part_obj) {
 		$this->value = 0.;
 		switch ($part_obj->field)
 		{
 			case 'start'        :
-				$this->value = CacheTools::iso2stamp($part_obj->value);
+				$this->value = TimeUtils::iso2stamp($part_obj->value);
 				$this->type = self::$TYPE_START;
 				break;
 			case 'stop'         :
-				$this->value = CacheTools::iso2stamp($part_obj->value);
+				$this->value = TimeUtils::iso2stamp($part_obj->value);
 				$this->type = self::$TYPE_STOP;
 				break;
 			case 'durationMin'  :
@@ -400,7 +382,7 @@ class FilterPartCacheObject
 				$this->value = 0.;
 				$this->type = self::$TYPE_UNKNOWN;
 		}
-		
+
 		switch ($part_obj->comparison)
 		{
 			case 'lt' :
@@ -416,21 +398,21 @@ class FilterPartCacheObject
 				$this->op = self::$OPERATION_UNKNOWN;
 		}
 	}
-	
+
 	public function writeBin($handle) {
 		fwrite($handle,pack('L2',$this->type,$this->op));
 		fwrite($handle,pack('f',$this->value));
 	}
-	
+
 	public function loadBin($handle) {
 		$res = unpack('L2data',fread($handle,4*2));
 		$this->type = $res['data1'];
 		$this->op   = $res['data2'];
-		
+
 		$res = unpack('fvalue',fread($handle,4));
 		$this->value = $res['value'];
 	}
-	
+
 	public function dump() {
 		echo "   => FilterPartCacheObject : type = ";
 		switch ($this->type)
@@ -475,27 +457,27 @@ class FilterPartCacheObject
 class FilterCacheObject
 {
 	protected $parts = array();
-	
+
 	function __construct() {
-		
+
 	}
-	
+
 	public function getParts() {
 		return $this->parts;
 	}
-	
+
 	public function reset() {
 		$this->parts = array();
 	}
-	
+
 	public function isEmpty() {
 		return (count($this->parts) == 0);
 	}
-	
+
 	public function loadFromJSON($filter_json) {
 		$this->reset();
 		$filter_obj = json_decode($filter_json);
-		
+
 		foreach ($filter_obj as $filter_part)
 		{
 			$part = new FilterPartCacheObject();
@@ -503,11 +485,11 @@ class FilterCacheObject
 			array_push($this->parts, $part);
 		}
 	}
-	
+
 	public function isSame($filter) {
 		if (count($this->parts) != count($filter->getParts()))
 			return false;
-		
+
 		$identique = true;
 		for ($i = 0; $i < count($this->parts); ++$i)
 		{
@@ -516,16 +498,16 @@ class FilterCacheObject
 				return false;
 			}
 		}
-			
+
 		return true;
 	}
-	
+
 	public function isSameFromJSON($filter_json) {
 		$filter = new FilterCacheObject();
 		$filter->loadFromJSON($filter_json);
 		return $this->isSame($filter);
 	}
-	
+
 	public function toFiltered($interval) {
 		foreach ($this->parts as $part)
 		{
@@ -534,13 +516,13 @@ class FilterCacheObject
 		}
 		return false;
 	}
-	
+
 	public function writeBin($handle) {
 		fwrite($handle,pack('L',count($this->parts)));
 		foreach ($this->parts as $part)
 			$part->writeBin($handle);
 	}
-	
+
 	public function loadBin($handle) {
 		$this->reset();
 		$res = unpack('Lcount',fread($handle,4));
@@ -551,7 +533,7 @@ class FilterCacheObject
 			array_push($this->parts, $part);
 		}
 	}
-	
+
 	public function dump() {
 		echo " => FilterCacheObject : number of parts = ".count($this->parts).PHP_EOL;
 		foreach ($this->parts as $part)
@@ -562,7 +544,7 @@ class FilterCacheObject
  class TimeTableCacheMgr
 {
 	protected static $cache_file                = "cacheTT";
-	
+
 	protected $ttMgr = null;
 	protected $cache = null;
@@ -574,7 +556,7 @@ class FilterCacheObject
 	public function initTTCache() {
 		//Create new cache
 		$this->cache = new TimeTableCacheObject();
-		
+
 		//Save cache file
 		return array('success' => $this->saveToFile(), 'token' => $this->cache->getToken(), 'status' => $this->cache->getStatus());
 	}
@@ -585,7 +567,7 @@ class FilterCacheObject
 		//Load intervals from TT file and add to cache
 		$intervals_res = $this->ttMgr->loadIntervalsFromTT($id,$typeTT);
-		
+
 		if (!$intervals_res['success'])
 			return $intervals_res;
@@ -594,7 +576,7 @@ class FilterCacheObject
 			//Add interval
 			$this->cache->addInterval($interval['start'], $interval['stop']);
 		}
-		
+
 		unset($intervals_res);
 		//Update cache
@@ -650,9 +632,9 @@ class FilterCacheObject
 		}
 		$this->cache->setIsModified(true);
-		
+
 		unset($intervals_res);
-		
+
 		//Update cache
 		$this->cache->updateIndexes();
@@ -680,9 +662,9 @@ class FilterCacheObject
 		}
 		$this->cache->setIsModified(true);
-		
+
 		unset($intervals_res);
-		
+
 		//Update cache
 		$this->cache->updateIndexes();
@@ -696,14 +678,14 @@ class FilterCacheObject
 		if ($token != $this->cache->getToken())
 			return array('success' => false, 'message' => 'Cache token check error');
-		
+
 		$this->cache->updateIndexes();
 		$this->saveToFile();
-		
+
 		$intervals = $this->cache->getIntervalsArray(NULL,NULL,true);
-		
+
 		$this->cache->reset();
-		
+
 		$res_intervals = array();
 		foreach ($intervals as $interval)
 		{
@@ -717,7 +699,7 @@ class FilterCacheObject
 		}
 		unset($intervals);
-		
+
 		return $this->ttMgr->saveIntervals($id, $res_intervals, $action);
 	}
@@ -742,7 +724,7 @@ class FilterCacheObject
 				$this->cache->getFilter()->reset();
 			}
 		}
-		
+
 		if (isset($sort_obj))
 		{
 			if (!$this->cache->getSort()->isSameFromObject($sort_obj))
@@ -759,7 +741,7 @@ class FilterCacheObject
 				$this->cache->getSort()->reset();
 			}
 		}
-		
+
 		if ($needToUpdate)
 		{
 			$this->cache->updateIndexes();
@@ -789,13 +771,13 @@ class FilterCacheObject
 		if (!isset($stop))
 			$stop = date('Y-m-d\TH:i:s');
-		
+
 		$this->cache->addInterval($start, $stop, true, $index);
-		
+
 		//$this->cache->updateIndexes();
-		
+
 		$this->saveToFile();
-		
+
 		return array('success' => true, 'index' => $index, 'status' => $this->cache->getStatus());
 	}
@@ -804,7 +786,7 @@ class FilterCacheObject
 			return array('success' => false, 'message' => 'Cannot load cache file');
 		$this->cache->removeIntervalFromId($id);
-		
+
 		$this->cache->updateIndexes();
 		$this->saveToFile();
@@ -817,38 +799,38 @@ class FilterCacheObject
 			return array('success' => false, 'message' => 'Cannot load cache file');
 		$this->cache->modifyIntervalFromId($id, $start, $stop);
-		
+
 		$this->saveToFile();
-		
+
 		return array('success' => true, 'status' => $this->cache->getStatus());
 	}
-	
+
 	public function operationIntervals($extendTime, $shiftTime) {
 		if (!$this->loadFromFile())
 			return array('success' => false, 'message' => 'Cannot load cache file');
-		
+
 		$this->cache->operationIntervals($extendTime, $shiftTime);
-		
+
 		$this->saveToFile();
-		
+
 		return array('success' => true, 'status' => $this->cache->getStatus());
 	}
-	
+
 	public function mergeIntervals() {
 		if (!$this->loadFromFile())
 			return array('success' => false, 'message' => 'Cannot load cache file');
-		
+
 		$this->cache->mergeIntervals();
-		
+
 		$this->saveToFile();
-		
+
 		return array('success' => true, 'status' => $this->cache->getStatus());
 	}
-	
+
 	public function getStatistics() {
 		if (!$this->loadFromFile())
 			return array('success' => false, 'message' => 'Cannot load cache file');
-		
+
 		return array('success' => true, "result" => $this->cache->getStatistics(), 'status' => $this->cache->getStatus());
 	}
@@ -860,11 +842,11 @@ class FilterCacheObject
 		}
 		$this->cache->dump();
 	}
-	
+
 	protected function getCacheFilePath() {
 		return USERTTDIR.(self::$cache_file);
 	}
-	
+
 	protected function saveToFile() {
 		if (!isset($this->cache))
 			return false;
@@ -879,7 +861,7 @@ class FilterCacheObject
 		fclose($handle);
 		return $result;
 	}
-	
+
 	protected function loadFromFile() {
 		if (!file_exists($this->getCacheFilePath()))
 			return false;
@@ -0,0 +1,22 @@
+<?php
+
+class TimeUtils
+{
+	public static function iso2stamp($iso) {
+		try {
+			$time = new DateTime($iso);
+		}
+		catch (Exception $e) {
+			$time = new DateTime('1970-01-01T00:00:00Z');
+		}
+		$stamp = $time->format('U');
+		unset($time);
+		return $stamp;
+	}
+
+	public static function stamp2iso($stamp) {
+		return date('Y-m-d\TH:i:s',$stamp);
+	}
+}
+
+?>