itm/itm-impl/src/main/java/org/opendaylight/vpnservice/itm/confighelpers/ItmInternalTunnelDeleteWorker.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.itm.confighelpers;
   9
  10 import java.math.BigInteger;
  11 import java.util.ArrayList;
  12 import java.util.List;
  13 import java.util.concurrent.Callable;
  14
  15 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  16 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  18 import org.opendaylight.vpnservice.itm.impl.ItmUtils;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.idmanager.rev150403.IdManagerService;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.DpnEndpoints;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.TunnelList;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.dpn.endpoints.DPNTEPsInfo;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.dpn.endpoints.dpn.teps.info.TunnelEndPoints;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.tunnel.list.InternalTunnel;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.tunnel.list.InternalTunnelKey;
  27 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  28 import org.slf4j.Logger;
  29 import org.slf4j.LoggerFactory;
  30
  31 import com.google.common.base.Optional;
  32 import com.google.common.util.concurrent.ListenableFuture;
  33
  34 public class ItmInternalTunnelDeleteWorker {
  35    private static final Logger logger = LoggerFactory.getLogger(ItmInternalTunnelDeleteWorker.class) ;
  36
  37     public static List<ListenableFuture<Void>> deleteTunnels(DataBroker dataBroker, IdManagerService idManagerService,
  38                                                              List<DPNTEPsInfo> dpnTepsList, List<DPNTEPsInfo> meshedDpnList)
  39     {
  40         List<ListenableFuture<Void>> futures = new ArrayList<>();
  41         WriteTransaction t = dataBroker.newWriteOnlyTransaction();
  42         try {
  43             if (dpnTepsList == null || dpnTepsList.size() == 0) {
  44                 logger.debug("no vtep to delete");
  45                 return null ;
  46             }
  47
  48             if (meshedDpnList == null || meshedDpnList.size() == 0) {
  49                 logger.debug("No Meshed Vteps");
  50                 return null ;
  51             }
  52             for (DPNTEPsInfo srcDpn : dpnTepsList) {
  53                 logger.trace("Processing srcDpn " + srcDpn);
  54                 for (TunnelEndPoints srcTep : srcDpn.getTunnelEndPoints()) {
  55                     logger.trace("Processing srcTep " + srcTep);
  56                     String srcTZone = srcTep.getTransportZone();
  57
  58                     // run through all other DPNS other than srcDpn
  59                     for (DPNTEPsInfo dstDpn : meshedDpnList) {
  60                         if (!(srcDpn.getDPNID().equals(dstDpn.getDPNID()))) {
  61                             for (TunnelEndPoints dstTep : dstDpn.getTunnelEndPoints()) {
  62                                 logger.trace("Processing dstTep " + dstTep);
  63                                 if (dstTep.getTransportZone().equals(srcTZone)) {
  64                                     // remove all trunk interfaces
  65                                     logger.trace("Invoking removeTrunkInterface between source TEP {} , Destination TEP {} " ,srcTep , dstTep);
  66                                     removeTrunkInterface(dataBroker, idManagerService, srcTep, dstTep, srcDpn.getDPNID(), dstDpn.getDPNID(), t, futures);
  67                                 }
  68                             }
  69                         }
  70                     }
  71
  72                     // removing vtep / dpn from Tunnels OpDs.
  73                     InstanceIdentifier<TunnelEndPoints> tepPath =
  74                                     InstanceIdentifier.builder(DpnEndpoints.class).child(DPNTEPsInfo.class, srcDpn.getKey())
  75                                                     .child(TunnelEndPoints.class, srcTep.getKey()).build();
  76
  77                     logger.trace("Tep Removal from DPNTEPSINFO CONFIG DS " + srcTep);
  78                     t.delete(LogicalDatastoreType.CONFIGURATION, tepPath);
  79                     InstanceIdentifier<DPNTEPsInfo> dpnPath =
  80                                     InstanceIdentifier.builder(DpnEndpoints.class).child(DPNTEPsInfo.class, srcDpn.getKey())
  81                                                     .build();
  82                     Optional<DPNTEPsInfo> dpnOptional =
  83                                     ItmUtils.read(LogicalDatastoreType.CONFIGURATION, dpnPath, dataBroker);
  84                     if (dpnOptional.isPresent()) {
  85                         DPNTEPsInfo dpnRead = dpnOptional.get();
  86                         // remove dpn if no vteps exist on dpn
  87                         if (dpnRead.getTunnelEndPoints() == null || dpnRead.getTunnelEndPoints().size() == 0) {
  88                             logger.debug( "Removing Terminating Service Table Flow ") ;
  89                            // setUpOrRemoveTerminatingServiceTable(dpnRead.getDPNID(), false);
  90                             logger.trace("DPN Removal from DPNTEPSINFO CONFIG DS " + dpnRead);
  91                             t.delete(LogicalDatastoreType.CONFIGURATION, dpnPath);
  92                             InstanceIdentifier<DpnEndpoints> tnlContainerPath =
  93                                             InstanceIdentifier.builder(DpnEndpoints.class).build();
  94                             Optional<DpnEndpoints> containerOptional =
  95                                             ItmUtils.read(LogicalDatastoreType.CONFIGURATION,
  96                                                             tnlContainerPath, dataBroker);
  97                             // remove container if no DPNs are present
  98                             if (containerOptional.isPresent()) {
  99                                 DpnEndpoints deps = containerOptional.get();
 100                                 if (deps.getDPNTEPsInfo() == null || deps.getDPNTEPsInfo().isEmpty()) {
 101                                     logger.trace("Container Removal from DPNTEPSINFO CONFIG DS");
 102                                     t.delete(LogicalDatastoreType.CONFIGURATION, tnlContainerPath);
 103                                 }
 104                             }
 105                         }
 106                     }
 107                 }
 108             }
 109             futures.add( t.submit() );
 110         } catch (Exception e1) {
 111             logger.error("exception while deleting tep", e1);
 112         }
 113         return futures ;
 114     }
 115
 116     private static void removeTrunkInterface(DataBroker dataBroker, IdManagerService idManagerService,
 117                                              TunnelEndPoints srcTep, TunnelEndPoints dstTep, BigInteger srcDpnId, BigInteger dstDpnId,
 118                                              WriteTransaction t, List<ListenableFuture<Void>> futures) {
 119         String trunkfwdIfName =
 120                         ItmUtils.getTrunkInterfaceName(idManagerService, srcTep.getInterfaceName(), srcTep.getIpAddress()
 121                                         .getIpv4Address().getValue(), dstTep.getIpAddress().getIpv4Address()
 122                                         .getValue());
 123         logger.trace("Removing forward Trunk Interface " + trunkfwdIfName);
 124         InstanceIdentifier<Interface> trunkIdentifier = ItmUtils.buildId(trunkfwdIfName);
 125         logger.debug(  " Removing Trunk Interface Name - {} , Id - {} from Config DS {}, {} ", trunkfwdIfName, trunkIdentifier ) ;
 126         t.delete(LogicalDatastoreType.CONFIGURATION, trunkIdentifier);
 127
 128         // also update itm-state ds -- Delete the forward tunnel-interface from the tunnel list
 129         InstanceIdentifier<InternalTunnel> path = InstanceIdentifier.create(
 130                 TunnelList.class)
 131                     .child(InternalTunnel.class, new InternalTunnelKey( srcDpnId, dstDpnId));
 132         t.delete(LogicalDatastoreType.CONFIGURATION,path) ;
 133         // Release the Id for the forward trunk
 134         ItmUtils.releaseId(idManagerService, trunkfwdIfName);
 135
 136         String trunkRevIfName =
 137                         ItmUtils.getTrunkInterfaceName(idManagerService, dstTep.getInterfaceName(), dstTep.getIpAddress()
 138                                         .getIpv4Address().getValue(), srcTep.getIpAddress().getIpv4Address()
 139                                         .getValue());
 140         logger.trace("Removing Reverse Trunk Interface " + trunkRevIfName);
 141         trunkIdentifier = ItmUtils.buildId(trunkfwdIfName);
 142         logger.debug(  " Removing Trunk Interface Name - {} , Id - {} from Config DS {}, {} ", trunkfwdIfName, trunkIdentifier ) ;
 143         t.delete(LogicalDatastoreType.CONFIGURATION, trunkIdentifier);
 144
 145      // also update itm-state ds -- Delete the reverse tunnel-interface from the tunnel list
 146         path = InstanceIdentifier.create(
 147                 TunnelList.class)
 148                     .child(InternalTunnel.class, new InternalTunnelKey(dstDpnId, srcDpnId));
 149         t.delete(LogicalDatastoreType.CONFIGURATION,path) ;
 150
 151         // Release the Id for the Reverse trunk
 152         ItmUtils.releaseId(idManagerService, trunkRevIfName);
 153     }
 154 }