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<?php
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require_once('./js/log4php/Logger.php');
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require_once('./paths.php');
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//require_once('./MYDB.php');
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include_once('./MYDB.php');
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//require_once('./controller.php');
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7
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8
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class RefreshCharts{
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private $log;
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private $cache = null;
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public function __construct(){
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12
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global $redis_host;
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global $redis_port;
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global $redis_scheme;
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global $host;
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$this->log = Logger::getLogger(__CLASS__);
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Logger::configure('./js/log4php/log4php.xml');
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if(class_exists("Predis\Client")){
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try {
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//todo changed timeout from 0 to -1
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$this->cache = new Predis\Client(array("scheme" => $redis_scheme,"host" => $redis_host,"port" => $redis_port,"read_write_timeout" => -1));
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$this->log->info("redis host: ".$redis_host." and redis port: ".$redis_port);
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} catch(Exception $e) {
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$this->log->error("Error connecting to Redis server: ".$e->getMessage());
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$this->cache = null;
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}
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}
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else{
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$this->log->info("cache does not exist"); //predis
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exit;
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}
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}
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38
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39
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40
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41
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function refresh() {
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if($this->cache != null){
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$this->log->info("cache exists");
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$database = new MYDB();
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$database->doConnect($GLOBALS['schema_file']);
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$keys = $this->cache->keys("*");
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48
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$this->log->info(" ******************REFRESHING CACHE*************************");
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50
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//TODO REFRESH CHARTS AND DATA
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for($x=0;$x<count($keys);$x++) {
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$this->log->info("Looking up for key: ".$keys[$x]);
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55
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if (strpos($keys[$x],'STATS')===false)
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{
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try
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{
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$query = $this->cache->hget($keys[$x],'query');
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$persistent= $this->cache->hget($keys[$x],'persistent');
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//if($query!=null&&$persistent=='true')
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if($query!=null)
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{ $this->log->info("going to recalculate the results for query ".$query );
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$fetchMode = $this->cache->hget($keys[$x], 'fetchMode');
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if($fetchMode==null)
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{ $fetchMode=3; }
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$shadowResults = $database->doQueryNoCache($query, $fetchMode);
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$result = $this->cache->hget($keys[$x], 'results');
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// $this->log->info("Currently stored results".$result );
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$backup = $this->cache->hget($keys[$x], 'backup');
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//$this->log->info("Currently stored backup".$backup);
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74
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if(json_encode($shadowResults))
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{$shadowResults=json_encode($shadowResults);}
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$this->cache->hmset($keys[$x],array("results" => $result, "query" =>$query,"persistent" => $persistent,"shadow" => $shadowResults, "fetchMode" => $fetchMode, "backup" => $backup));
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$this->log->info("Stored Entry : ".$this->cache->hget($keys[$x],'shadow'));
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}
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else{
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81
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$this->log->info("going to delete the key: ".$keys[$x]." for persistence : ".$persistent);
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$this->cache->del($keys[$x]);
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}
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85
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}//catch
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catch(Exception $e) {
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$this->log->error('Error : '.$e->getMessage());
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89
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}
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}
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92
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93
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else
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{
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$this->log->info("Ignoring chart key: ".$keys[$x]);
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}
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99
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}
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101
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102
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103
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// for eeach key loop
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104
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$database->doDisconnect();
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106
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} else {
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$this->log->info("cache does not exist");
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}
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}
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}
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//$rc = new RefreshCharts();
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113
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//$rc->refresh();
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114
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?>
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