vpnmanager/impl/src/main/java/org/opendaylight/netvirt/vpnmanager/VpnServiceElanDpnInterfacesListener.java

   1 /*
   2  * Copyright (c) 2018 Redhat 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
   9 package org.opendaylight.netvirt.vpnmanager;
  10
  11 import com.google.common.base.Optional;
  12
  13 import java.math.BigInteger;
  14 import java.util.ArrayList;
  15 import java.util.Collections;
  16 import java.util.Iterator;
  17 import java.util.List;
  18
  19 import javax.annotation.PostConstruct;
  20 import javax.inject.Inject;
  21 import javax.inject.Singleton;
  22
  23 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  24 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  25 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  26 import org.opendaylight.genius.datastoreutils.SingleTransactionDataBroker;
  27 import org.opendaylight.genius.interfacemanager.interfaces.IInterfaceManager;
  28 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
  29 import org.opendaylight.netvirt.fibmanager.api.IFibManager;
  30 import org.opendaylight.netvirt.vpnmanager.api.VpnHelper;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.ElanDpnInterfaces;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.dpn.interfaces.ElanDpnInterfacesList;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.dpn.interfaces.elan.dpn.interfaces.list.DpnInterfaces;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.instances.ElanInstance;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.op.data.vpn.instance.op.data.entry.VpnToDpnList;
  36 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  37
  38 import org.slf4j.Logger;
  39 import org.slf4j.LoggerFactory;
  40
  41 @Singleton
  42 public class VpnServiceElanDpnInterfacesListener
  43         extends AsyncDataTreeChangeListenerBase<DpnInterfaces, VpnServiceElanDpnInterfacesListener> {
  44
  45     private static final Logger LOG = LoggerFactory.getLogger(VpnServiceElanDpnInterfacesListener.class);
  46     private final DataBroker dataBroker;
  47     private final IInterfaceManager interfaceManager;
  48     private final IFibManager fibManager;
  49     private final JobCoordinator jobCoordinator;
  50     private final VpnUtil vpnUtil;
  51
  52     @Inject
  53     public VpnServiceElanDpnInterfacesListener(final DataBroker dataBroker, final IInterfaceManager interfaceManager,
  54             final IFibManager fibManager,final JobCoordinator jobCoordinator, VpnUtil vpnUtil) {
  55         this.dataBroker = dataBroker;
  56         this.interfaceManager = interfaceManager;
  57         this.fibManager = fibManager;
  58         this.jobCoordinator = jobCoordinator;
  59         this.vpnUtil = vpnUtil;
  60     }
  61
  62     @PostConstruct
  63     public void start() {
  64         registerListener(LogicalDatastoreType.OPERATIONAL, dataBroker);
  65     }
  66
  67     @Override
  68     public InstanceIdentifier<DpnInterfaces> getWildCardPath() {
  69         return InstanceIdentifier.builder(ElanDpnInterfaces.class).child(ElanDpnInterfacesList.class)
  70                 .child(DpnInterfaces.class).build();
  71     }
  72
  73     @Override
  74     protected void remove(InstanceIdentifier<DpnInterfaces> identifier, DpnInterfaces dpnInterfaces) {
  75
  76     }
  77
  78     @Override
  79     protected void update(InstanceIdentifier<DpnInterfaces> identifier, DpnInterfaces original,
  80             DpnInterfaces update) {
  81         LOG.info("received Dpninterfaces update event for dpn {}", update.getDpId());
  82         BigInteger dpnId = update.getDpId();
  83         String elanInstanceName = identifier.firstKeyOf(ElanDpnInterfacesList.class).getElanInstanceName();
  84         ElanInstance elanInstance = vpnUtil.getElanInstanceByName(elanInstanceName);
  85         String vpnName = vpnUtil.getVpnNameFromElanIntanceName(elanInstanceName);
  86         if (vpnName == null) {
  87             return;
  88         }
  89         String primaryRd = vpnUtil.getPrimaryRd(vpnName);
  90         if (elanInstance != null && !elanInstance.isExternal() && VpnUtil.isVlan(elanInstance)) {
  91             jobCoordinator.enqueueJob(elanInstance.getElanInstanceName(), () -> {
  92                 List<String> addedInterfaces = getUpdatedInterfaceList(update.getInterfaces(),
  93                     original.getInterfaces());
  94                 for (String addedInterface : addedInterfaces) {
  95                     if (interfaceManager.isExternalInterface(addedInterface)) {
  96                         InstanceIdentifier<VpnToDpnList> id = VpnHelper.getVpnToDpnListIdentifier(primaryRd, dpnId);
  97                         Optional<VpnToDpnList> dpnInVpn = SingleTransactionDataBroker.syncReadOptional(dataBroker,
  98                             LogicalDatastoreType.OPERATIONAL, id);
  99                         if (!dpnInVpn.isPresent() || (dpnInVpn.get().getVpnInterfaces() != null
 100                             && dpnInVpn.get().getVpnInterfaces().size() != 1)) {
 101                             return Collections.emptyList();
 102                         }
 103                         if (!vpnUtil.shouldPopulateFibForVlan(vpnName, elanInstanceName, dpnId)) {
 104                             return Collections.emptyList();
 105                         }
 106                         long vpnId = vpnUtil.getVpnId(vpnName);
 107                         fibManager.populateFibOnNewDpn(dpnId, vpnId, primaryRd, null);
 108                         break;
 109                     }
 110                 }
 111                 List<String> deletedInterfaces = getUpdatedInterfaceList(original.getInterfaces(),
 112                     update.getInterfaces());
 113                 if (!deletedInterfaces.isEmpty()) {
 114                     String routerPortUuid = vpnUtil.getRouterPordIdFromElanInstance(elanInstanceName);
 115                     if (update.getInterfaces().size() == 2 && update.getInterfaces().contains(routerPortUuid)) {
 116                         vpnUtil.removeRouterPortFromElanForVlanInDpn(vpnName, dpnId);
 117                     }
 118                 }
 119                 return Collections.emptyList();
 120             });
 121         }
 122     }
 123
 124     @Override
 125     protected void add(InstanceIdentifier<DpnInterfaces> identifier, DpnInterfaces dpnInterfaces) {
 126         BigInteger dpnId = dpnInterfaces.getDpId();
 127         String elanInstanceName = identifier.firstKeyOf(ElanDpnInterfacesList.class).getElanInstanceName();
 128         ElanInstance elanInstance = vpnUtil.getElanInstanceByName(elanInstanceName);
 129         if (!VpnUtil.isVlan(elanInstance)) {
 130             return;
 131         }
 132         String vpnName = vpnUtil.getVpnNameFromElanIntanceName(elanInstanceName);
 133         if (vpnName == null) {
 134             return;
 135         }
 136         vpnUtil.addRouterPortToElanForVlanInDpn(vpnName, dpnId);
 137     }
 138
 139     @Override
 140     protected VpnServiceElanDpnInterfacesListener getDataTreeChangeListener() {
 141         return VpnServiceElanDpnInterfacesListener.this;
 142     }
 143
 144
 145     public static List<String> getUpdatedInterfaceList(List<String> updatedInterfaceList,
 146             List<String> currentInterfaceList) {
 147         if (updatedInterfaceList == null) {
 148             return Collections.<String>emptyList();
 149         }
 150         List<String> newInterfaceList = new ArrayList<>(updatedInterfaceList);
 151         if (currentInterfaceList == null) {
 152             return newInterfaceList;
 153         }
 154         List<String> origInterfaceList = new ArrayList<>(currentInterfaceList);
 155         for (Iterator<String> iterator = newInterfaceList.iterator(); iterator.hasNext();) {
 156             String updatedInterface = iterator.next();
 157             for (String currentInterface :origInterfaceList) {
 158                 if (updatedInterface.equals(currentInterface)) {
 159                     iterator.remove();
 160                 }
 161             }
 162         }
 163         return newInterfaceList;
 164     }
 165
 166 }