protected function getDataFromCache($key) {
        $self = $this;
        return (new Promise(function($r, $c) use ($self, $key) {
            $self->cache
                ->get($key)
                ->then(function($data) {
                    return $data !== null ? $data : reject(null);
                })->then(function($data) use ($r) {
                    $r($data);
                }, function() use ($c, $key) {
                    $message = sprintf('Failed to get session data from cache for "%s"', $key);
                    $c(new SessionException($message));
                });
        }));
    }
protected function getDataFromCache($key) {
        $self = $this;
        return (new Promise(function($r, $c) use ($self, $key) {
            $self->cache
                ->get($key)
                ->then(function($data) {
                    return $data !== null ? $data : reject(null);
                })->then(function($data) use ($r) {
                    $r($data);
                }, function() use ($c, $key) {
                    $message = sprintf('Failed to get session data from cache for "%s"', $key);
                    $c(new SessionException($message));
                });
        }));
    }
protected function getDataFromCache ( $ key ) { $ self = $ this ; return ( new Promise ( function ( $ r , $ c ) use ( $ self , $ key ) { $ self -> cache -> get ( $ key ) -> then ( function ( $ data ) { return $ data !== null ? $ data : reject ( null ) ; } ) -> then ( function ( $ data ) use ( $ r ) { $ r ( $ data ) ; } , function ( ) use ( $ c , $ key ) { $ message = sprintf ( 'Failed to get session data from cache for "%s"' , $ key ) ; $ c ( new SessionException ( $ message ) ) ; } ) ; } ) ) ; }
Get data from cache storage
@param string $key
@return ExtendedPromiseInterface
Get data from cache storage