filehandle );
				$this->log_filehandle = false;
			}
		}

		return $strings;
	}

	public function w3tc_usage_statistics_of_request( $storage ) {
		$storage->counter_add( 'objectcache_get_total', $this->cache_total );
		$storage->counter_add( 'objectcache_get_hits', $this->cache_hits );
		$storage->counter_add( 'objectcache_sets', $this->cache_sets );
		$storage->counter_add( 'objectcache_flushes', $this->cache_flushes );
		$storage->counter_add( 'objectcache_time_ms', (int)($this->time_total * 1000) );
	}

	public function get_reject_reason() {
		if ( is_null( $this->cache_reject_reason ) )
			return '';
		return $this->_get_reject_reason_message( $this->cache_reject_reason );
	}

	/**
	 *
	 *
	 * @param unknown $key
	 * @return string|void
	 */
	private function _get_reject_reason_message( $key ) {
		if ( !function_exists( '__' ) )
			return $key;

		switch ( $key ) {
		case 'objectcache.disabled':
			return __( 'Object caching is disabled', 'w3-total-cache' );
		case 'DONOTCACHEOBJECT':
			return __( 'DONOTCACHEOBJECT constant is defined', 'w3-total-cache' );
		default:
			return '';
		}
	}



	private function log_call( $line ) {
		if ( !$this->log_filehandle ) {
			$filename = Util_Debug::log_filename( 'objectcache-calls' );
			$this->log_filehandle = fopen( $filename, 'a' );
		}

		fputcsv ( $this->log_filehandle, $line, "\t" );
	}
}