vpnservice/vpnmanager/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 com.google.common.base.Optional;
  11 import com.google.common.util.concurrent.CheckedFuture;
  12 import com.google.common.util.concurrent.ListenableFuture;
  13 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  14 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  15 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  16 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  17 import org.opendaylight.genius.datastoreutils.DataStoreJobCoordinator;
  18 import org.opendaylight.genius.mdsalutil.*;
  19 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.AddDpnEvent;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.OdlL3vpnListener;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.RemoveDpnEvent;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.remove.dpn.event.RemoveEventData;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.op.data.VpnInstanceOpDataEntry;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.op.data.vpn.instance.op.data.entry
  26         .VpnToDpnList;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.idmanager.rev160406.IdManagerService;
  28 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 import java.math.BigInteger;
  33 import java.util.ArrayList;
  34 import java.util.Collection;
  35 import java.util.List;
  36 import java.util.concurrent.Callable;
  37 import java.util.concurrent.ExecutionException;
  38
  39 public class DpnInVpnChangeListener implements OdlL3vpnListener {
  40     private static final Logger LOG = LoggerFactory.getLogger(DpnInVpnChangeListener.class);
  41     private DataBroker dataBroker;
  42     private IMdsalApiManager mdsalManager;
  43     private IdManagerService idManager;
  44
  45     public DpnInVpnChangeListener(DataBroker dataBroker) {
  46         this.dataBroker = dataBroker;
  47     }
  48
  49     public void onAddDpnEvent(AddDpnEvent notification) {
  50
  51     }
  52
  53     public void onRemoveDpnEvent(RemoveDpnEvent notification) {
  54
  55         RemoveEventData eventData = notification.getRemoveEventData();
  56         final String rd = eventData.getRd();
  57         final String vpnName = eventData.getVpnName();
  58         BigInteger dpnId = eventData.getDpnId();
  59
  60         LOG.trace("Remove Dpn Event notification received for rd {} VpnName {} DpnId {}", rd , vpnName, dpnId);
  61
  62         synchronized (vpnName.intern()) {
  63             InstanceIdentifier<VpnInstanceOpDataEntry> id = VpnUtil.getVpnInstanceOpDataIdentifier(rd);
  64             Optional<VpnInstanceOpDataEntry> vpnOpValue = VpnUtil.read(dataBroker, LogicalDatastoreType.OPERATIONAL, id);
  65
  66             if (vpnOpValue.isPresent()) {
  67                 VpnInstanceOpDataEntry vpnInstOpData = vpnOpValue.get();
  68                 List<VpnToDpnList> vpnToDpnList = vpnInstOpData.getVpnToDpnList();
  69                 boolean flushDpnsOnVpn = true;
  70                 for (VpnToDpnList dpn: vpnToDpnList) {
  71                     if (dpn.getDpnState() == VpnToDpnList.DpnState.Active) {
  72                         flushDpnsOnVpn = false;
  73                         break;
  74                     }
  75                 }
  76                 if (flushDpnsOnVpn) {
  77                     WriteTransaction writeTxn = dataBroker.newWriteOnlyTransaction();
  78                     deleteDpn(vpnToDpnList , rd , writeTxn);
  79                     CheckedFuture<Void, TransactionCommitFailedException> futures = writeTxn.submit();
  80                     try {
  81                         futures.get();
  82                     } catch (InterruptedException | ExecutionException e) {
  83                         LOG.error("Error removing dpnToVpnList for vpn {} ", vpnName);
  84                         throw new RuntimeException(e.getMessage());
  85                     }
  86                 }
  87             }
  88         }
  89     }
  90
  91     protected void deleteDpn(Collection<VpnToDpnList> vpnToDpnList, String rd, WriteTransaction writeTxn) {
  92         for (final VpnToDpnList curDpn : vpnToDpnList) {
  93             InstanceIdentifier<VpnToDpnList> VpnToDpnId = VpnUtil.getVpnToDpnListIdentifier(rd, curDpn.getDpnId());
  94             writeTxn.delete(LogicalDatastoreType.OPERATIONAL, VpnToDpnId);
  95         }
  96     }
  97 }
  98