class Flow {

    public boolean filter(String path) {
        FlowPart flowPart = getPart(path, FlowStatus.CLEAN);
        if (flowPart == null) {
            return false;
        }
        flowPart.setFilterTime(currentTime());
        flowPart.incrementFilterCount();
        return true;
    }

    public  Flow();
    public  Flow(String application);

}