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