interfacemgr/interfacemgr-impl/src/main/java/org/opendaylight/vpnservice/interfacemgr/servicebindings/flowbased/statehelpers/FlowBasedServicesStateUnbindHelper.java

   1 /*
   2  * Copyright (c) 2015 Ericsson India Global Services Pvt Ltd. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.vpnservice.interfacemgr.servicebindings.flowbased.statehelpers;
   9
  10 import java.math.BigInteger;
  11 import java.util.ArrayList;
  12 import java.util.Collections;
  13 import java.util.Comparator;
  14 import java.util.List;
  15
  16 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  17 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  18 import org.opendaylight.vpnservice.interfacemgr.IfmConstants;
  19 import org.opendaylight.vpnservice.interfacemgr.IfmUtil;
  20 import org.opendaylight.vpnservice.interfacemgr.commons.InterfaceManagerCommonUtils;
  21 import org.opendaylight.vpnservice.interfacemgr.servicebindings.flowbased.utilities.FlowBasedServicesUtils;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.L2vlan;
  23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.Tunnel;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.InterfaceKey;
  25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.servicebinding.rev151015.service.bindings.ServicesInfo;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.servicebinding.rev151015.service.bindings.services.info.BoundServices;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 import com.google.common.util.concurrent.ListenableFuture;
  33
  34 public class FlowBasedServicesStateUnbindHelper {
  35     private static final Logger LOG = LoggerFactory.getLogger(FlowBasedServicesStateUnbindHelper.class);
  36
  37     public static List<ListenableFuture<Void>> unbindServicesFromInterface(Interface ifaceState,
  38                                                                            DataBroker dataBroker) {
  39         List<ListenableFuture<Void>> futures = new ArrayList<>();
  40
  41         ServicesInfo servicesInfo = FlowBasedServicesUtils.getServicesInfoForInterface(ifaceState.getName(), dataBroker);
  42         if (servicesInfo == null) {
  43             return futures;
  44         }
  45
  46         List<BoundServices> allServices = servicesInfo.getBoundServices();
  47         if (allServices == null || allServices.isEmpty()) {
  48             return futures;
  49         }
  50
  51         InterfaceKey interfaceKey = new InterfaceKey(ifaceState.getName());
  52         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface iface =
  53                     InterfaceManagerCommonUtils.getInterfaceFromConfigDS(interfaceKey, dataBroker);
  54
  55         if (ifaceState.getType().isAssignableFrom(L2vlan.class)) {
  56             return unbindServiceOnVlan(allServices, iface, ifaceState.getIfIndex(), dataBroker);
  57         } else if (ifaceState.getType().isAssignableFrom(Tunnel.class)){
  58              return unbindServiceOnTunnel(allServices, iface, ifaceState.getIfIndex(), dataBroker);
  59         }
  60         return futures;
  61     }
  62
  63     private static List<ListenableFuture<Void>> unbindServiceOnTunnel(
  64             List<BoundServices> allServices,
  65             org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface iface,
  66             Integer ifIndex, DataBroker dataBroker) {
  67         List<ListenableFuture<Void>> futures = new ArrayList<>();
  68         WriteTransaction t = dataBroker.newWriteOnlyTransaction();
  69
  70         NodeConnectorId nodeConnectorId = FlowBasedServicesUtils.getNodeConnectorIdFromInterface(iface, dataBroker);
  71         if(nodeConnectorId == null){
  72             return futures;
  73         }
  74         BoundServices highestPriorityBoundService = FlowBasedServicesUtils.getHighestPriorityService(allServices);
  75
  76         BigInteger dpId = new BigInteger(IfmUtil.getDpnFromNodeConnectorId(nodeConnectorId));
  77         FlowBasedServicesUtils.removeIngressFlow(iface, highestPriorityBoundService, dpId, t);
  78
  79         for (BoundServices boundService : allServices) {
  80             if (!boundService.equals(highestPriorityBoundService)) {
  81                 FlowBasedServicesUtils.removeLPortDispatcherFlow(dpId, iface, boundService, t, boundService.getServicePriority());
  82             }
  83         }
  84
  85         futures.add(t.submit());
  86         return futures;
  87     }
  88
  89     private static List<ListenableFuture<Void>> unbindServiceOnVlan(
  90             List<BoundServices> allServices,
  91             org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface iface,
  92             Integer ifIndex, DataBroker dataBroker) {
  93         List<ListenableFuture<Void>> futures = new ArrayList<>();
  94         WriteTransaction t = dataBroker.newWriteOnlyTransaction();
  95         NodeConnectorId nodeConnectorId = FlowBasedServicesUtils.getNodeConnectorIdFromInterface(iface, dataBroker);
  96         if (nodeConnectorId == null) {
  97             return futures;
  98         }
  99         BigInteger dpId = new BigInteger(IfmUtil.getDpnFromNodeConnectorId(nodeConnectorId));
 100         Collections.sort(allServices, new Comparator<BoundServices>() {
 101             @Override
 102             public int compare(BoundServices serviceInfo1, BoundServices serviceInfo2) {
 103                 return serviceInfo2.getServicePriority().compareTo(serviceInfo1.getServicePriority());
 104             }
 105         });
 106         BoundServices highestPriority = allServices.remove(0);
 107         FlowBasedServicesUtils.removeLPortDispatcherFlow(dpId, iface, highestPriority, t, IfmConstants.DEFAULT_SERVICE_INDEX);
 108         for (BoundServices boundService : allServices) {
 109                 FlowBasedServicesUtils.removeLPortDispatcherFlow(dpId, iface, boundService, t, boundService.getServicePriority());
 110         }
 111         futures.add(t.submit());
 112         return futures;
 113
 114     }
 115
 116 }