import org.opendaylight.controller.sal.core.PeerBandwidth; //导入依赖的package包/类
public static Set<Property> OFPortToProps(OFPhysicalPort port) {
    Set<Property> props = new HashSet<Property>();
    Bandwidth bw = InventoryServiceHelper.OFPortToBandWidth(port
            .getCurrentFeatures());
    if (bw != null) {
        props.add(bw);
    }

    Bandwidth abw = InventoryServiceHelper.OFPortToBandWidth(port.getAdvertisedFeatures());
    if (abw != null) {
            AdvertisedBandwidth a = new AdvertisedBandwidth(abw.getValue());
            if (a != null) {
                    props.add(a);
            }
    }
    Bandwidth sbw = InventoryServiceHelper.OFPortToBandWidth(port.getSupportedFeatures());
    if (sbw != null) {
            SupportedBandwidth s = new SupportedBandwidth(sbw.getValue());
            if (s != null) {
                    props.add(s);
            }
    }
    Bandwidth pbw = InventoryServiceHelper.OFPortToBandWidth(port.getPeerFeatures());
    if (pbw != null) {
            PeerBandwidth p = new PeerBandwidth(pbw.getValue());
            if (p != null) {
                    props.add(p);
            }
    }
    props.add(new Name(port.getName()));
    props.add(InventoryServiceHelper.OFPortToConfig(port.getConfig()));
    props.add(InventoryServiceHelper.OFPortToState(port.getState()));
    return props;
}