How to use

cancelPackets

method

in

org.onosproject.net.packet.PacketService

private void cancelPackets() {
  packetService.cancelPackets(buildArpSelector(), CONTROL, appId);
  packetService.cancelPackets(buildNeighborSolicitationSelector(),
      CONTROL, appId);
  packetService.cancelPackets(buildNeighborAdvertisementSelector(),
      CONTROL, appId);
}

/**
 * Withdraws packet intercepts.
 */
private void withdrawIntercepts() {
  TrafficSelector.Builder selector = DefaultTrafficSelector.builder();
  selector.matchEthType(TYPE_LLDP);
  packetService.cancelPackets(selector.build(), PacketPriority.CONTROL, appId);
  selector.matchEthType(TYPE_BSN);
  packetService.cancelPackets(selector.build(), PacketPriority.CONTROL, appId);
}

private void requestPackets() {
  if (arpEnabled) {
    packetService.requestPackets(buildArpSelector(), CONTROL, appId);
  } else {
    packetService.cancelPackets(buildArpSelector(), CONTROL, appId);
  }
  if (ndpEnabled) {
    packetService.requestPackets(buildNeighborSolicitationSelector(),
        CONTROL, appId);
    packetService.requestPackets(buildNeighborAdvertisementSelector(),
        CONTROL, appId);
  } else {
    packetService.cancelPackets(buildNeighborSolicitationSelector(),
        CONTROL, appId);
    packetService.cancelPackets(buildNeighborAdvertisementSelector(),
        CONTROL, appId);
  }
}

/**
 * Cancel requested packet in via packet service.
 */
private void withdrawIntercepts() {
  TrafficSelector.Builder selectorBuilder =
      DefaultTrafficSelector.builder();
  selectorBuilder.matchEthType(TYPE_ARP);
  packetService.cancelPackets(selectorBuilder.build(), CONTROL, appId);
  selectorBuilder = DefaultTrafficSelector.builder();
  selectorBuilder.matchEthType(TYPE_IPV6);
  selectorBuilder.matchIPProtocol(PROTOCOL_ICMP6);
  selectorBuilder.matchIcmpv6Type(NEIGHBOR_SOLICITATION);
  packetService.cancelPackets(selectorBuilder.build(), CONTROL, appId);
  selectorBuilder = DefaultTrafficSelector.builder();
  selectorBuilder.matchEthType(TYPE_IPV6);
  selectorBuilder.matchIPProtocol(PROTOCOL_ICMP6);
  selectorBuilder.matchIcmpv6Type(NEIGHBOR_ADVERTISEMENT);
  packetService.cancelPackets(selectorBuilder.build(), CONTROL, appId);
}

/**
 * Requests packet intercepts.
 */
private void requestIntercepts() {
  TrafficSelector.Builder selector = DefaultTrafficSelector.builder();
  selector.matchEthType(TYPE_LLDP);
  packetService.requestPackets(selector.build(), PacketPriority.CONTROL, appId);
  selector.matchEthType(TYPE_BSN);
  if (useBddp) {
    packetService.requestPackets(selector.build(), PacketPriority.CONTROL, appId);
  } else {
    packetService.cancelPackets(selector.build(), PacketPriority.CONTROL, appId);
  }
}

                 CONTROL, appId);
} else {
  packetService.cancelPackets(selectorBuilder.build(),
                CONTROL, appId);
                 CONTROL, appId);
} else {
  packetService.cancelPackets(selectorBuilder.build(),
                CONTROL, appId);