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

   1 /*
   2  * Copyright (c) 2016 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.netvirt.vpnmanager;
   9
  10 import static org.opendaylight.genius.infra.Datastore.OPERATIONAL;
  11
  12 import com.google.common.base.Optional;
  13 import java.math.BigInteger;
  14 import java.util.Collection;
  15 import java.util.List;
  16 import java.util.concurrent.ExecutionException;
  17 import javax.inject.Inject;
  18 import javax.inject.Singleton;
  19 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  20 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  21 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  22 import org.opendaylight.genius.datastoreutils.SingleTransactionDataBroker;
  23 import org.opendaylight.genius.infra.Datastore.Operational;
  24 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  25 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  26 import org.opendaylight.genius.infra.TypedWriteTransaction;
  27 import org.opendaylight.netvirt.vpnmanager.api.VpnHelper;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.AddDpnEvent;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.AddInterfaceToDpnOnVpnEvent;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.OdlL3vpnListener;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.RemoveDpnEvent;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.RemoveInterfaceFromDpnOnVpnEvent;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.remove.dpn.event.RemoveEventData;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.op.data.VpnInstanceOpDataEntry;
  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 import org.slf4j.Logger;
  38 import org.slf4j.LoggerFactory;
  39
  40 @Singleton
  41 public class DpnInVpnChangeListener implements OdlL3vpnListener {
  42     private static final Logger LOG = LoggerFactory.getLogger(DpnInVpnChangeListener.class);
  43     private final DataBroker dataBroker;
  44     private final ManagedNewTransactionRunner txRunner;
  45
  46     @Inject
  47     public DpnInVpnChangeListener(DataBroker dataBroker) {
  48         this.dataBroker = dataBroker;
  49         this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
  50     }
  51
  52     @Override
  53     public void onAddDpnEvent(AddDpnEvent notification) {
  54
  55     }
  56
  57     @Override
  58     public void onRemoveDpnEvent(RemoveDpnEvent notification) {
  59
  60         RemoveEventData eventData = notification.getRemoveEventData();
  61         final String rd = eventData.getRd();
  62         final String vpnName = eventData.getVpnName();
  63         BigInteger dpnId = eventData.getDpnId();
  64
  65         LOG.trace("Remove Dpn Event notification received for rd {} VpnName {} DpnId {}", rd, vpnName, dpnId);
  66         try {
  67             synchronized (vpnName.intern()) {
  68                 InstanceIdentifier<VpnInstanceOpDataEntry> id = VpnUtil.getVpnInstanceOpDataIdentifier(rd);
  69                 Optional<VpnInstanceOpDataEntry> vpnOpValue =
  70                         SingleTransactionDataBroker.syncReadOptional(dataBroker, LogicalDatastoreType.OPERATIONAL, id);
  71                 if (vpnOpValue.isPresent()) {
  72                     VpnInstanceOpDataEntry vpnInstOpData = vpnOpValue.get();
  73                     List<VpnToDpnList> vpnToDpnList = vpnInstOpData.getVpnToDpnList();
  74                     boolean flushDpnsOnVpn = true;
  75                     for (VpnToDpnList dpn : vpnToDpnList) {
  76                         if (dpn.getDpnState() == VpnToDpnList.DpnState.Active) {
  77                             flushDpnsOnVpn = false;
  78                             break;
  79                         }
  80                     }
  81                     if (flushDpnsOnVpn) {
  82                         try {
  83                             txRunner.callWithNewWriteOnlyTransactionAndSubmit(OPERATIONAL,
  84                                 tx -> deleteDpn(vpnToDpnList, rd, tx)).get();
  85                         } catch (InterruptedException | ExecutionException e) {
  86                             LOG.error("Error removing dpnToVpnList for vpn {} ", vpnName);
  87                             throw new RuntimeException(e.getMessage(), e);
  88                         }
  89                     }
  90                 }
  91             }
  92         } catch (ReadFailedException e) {
  93             LOG.error("onRemoveDpnEvent: Failed to read data store for rd {} vpn {} dpn {}", rd, vpnName, dpnId);
  94         }
  95     }
  96
  97     protected void deleteDpn(Collection<VpnToDpnList> vpnToDpnList, String rd, TypedWriteTransaction<Operational> tx) {
  98         for (final VpnToDpnList curDpn : vpnToDpnList) {
  99             InstanceIdentifier<VpnToDpnList> vpnToDpnId = VpnHelper.getVpnToDpnListIdentifier(rd, curDpn.getDpnId());
 100             tx.delete(vpnToDpnId);
 101         }
 102     }
 103
 104     @Override
 105     public void onAddInterfaceToDpnOnVpnEvent(AddInterfaceToDpnOnVpnEvent notification) {
 106     }
 107
 108     @Override
 109     public void onRemoveInterfaceFromDpnOnVpnEvent(RemoveInterfaceFromDpnOnVpnEvent notification) {
 110     }
 111 }
 112