+/*
+ * Copyright (c) 2015 Ericsson India Global Services Pvt Ltd. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.vpnservice.itm.confighelpers;
+
+import java.math.BigInteger;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.Callable;
+
+import org.opendaylight.controller.md.sal.binding.api.DataBroker;
+import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
+import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
+import org.opendaylight.vpnservice.itm.impl.ItmUtils;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.itm.op.rev150701.Tunnels;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.itm.op.rev150701.tunnels.DPNTEPsInfo;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.itm.op.rev150701.tunnels.dpn.teps.info.TunnelEndPoints;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.Optional;
+import com.google.common.util.concurrent.ListenableFuture;
+
+public class ItmInternalTunnelDeleteWorker {
+ private static final Logger logger = LoggerFactory.getLogger(ItmInternalTunnelDeleteWorker.class) ;
+
+ public static List<ListenableFuture<Void>> deleteTunnels(DataBroker dataBroker, List<DPNTEPsInfo> dpnTepsList, List<DPNTEPsInfo> meshedDpnList)
+ {
+ List<ListenableFuture<Void>> futures = new ArrayList<>();
+ WriteTransaction t = dataBroker.newWriteOnlyTransaction();
+ try {
+ if (dpnTepsList == null || dpnTepsList.size() == 0) {
+ logger.debug("no vtep to delete");
+ return null ;
+ }
+
+ if (meshedDpnList == null || meshedDpnList.size() == 0) {
+ logger.debug("No Meshed Vteps");
+ return null ;
+ }
+ for (DPNTEPsInfo srcDpn : dpnTepsList) {
+ logger.trace("Processing srcDpn " + srcDpn);
+ for (TunnelEndPoints srcTep : srcDpn.getTunnelEndPoints()) {
+ logger.trace("Processing srcTep " + srcTep);
+ String srcTZone = srcTep.getTransportZone();
+
+ // run through all other DPNS other than srcDpn
+ for (DPNTEPsInfo dstDpn : meshedDpnList) {
+ if (!(srcDpn.getDPNID().equals(dstDpn.getDPNID()))) {
+ for (TunnelEndPoints dstTep : dstDpn.getTunnelEndPoints()) {
+ logger.trace("Processing dstTep " + dstTep);
+ if (dstTep.getTransportZone().equals(srcTZone)) {
+ // remove all trunk interfaces
+ logger.trace("Invoking removeTrunkInterface between source TEP {} , Destination TEP {} " ,srcTep , dstTep);
+ removeTrunkInterface(dataBroker, srcTep, dstTep, srcDpn.getDPNID(), dstDpn.getDPNID(), t, futures);
+ }
+ }
+ }
+ }
+
+ // removing vtep / dpn from Tunnels OpDs.
+ InstanceIdentifier<TunnelEndPoints> tepPath =
+ InstanceIdentifier.builder(Tunnels.class).child(DPNTEPsInfo.class, srcDpn.getKey())
+ .child(TunnelEndPoints.class, srcTep.getKey()).build();
+
+ logger.trace("Tep Removal from DPNTEPSINFO CONFIG DS " + srcTep);
+ t.delete(LogicalDatastoreType.CONFIGURATION, tepPath);
+ InstanceIdentifier<DPNTEPsInfo> dpnPath =
+ InstanceIdentifier.builder(Tunnels.class).child(DPNTEPsInfo.class, srcDpn.getKey())
+ .build();
+ Optional<DPNTEPsInfo> dpnOptional =
+ ItmUtils.read(LogicalDatastoreType.CONFIGURATION, dpnPath, dataBroker);
+ if (dpnOptional.isPresent()) {
+ DPNTEPsInfo dpnRead = dpnOptional.get();
+ // remove dpn if no vteps exist on dpn
+ if (dpnRead.getTunnelEndPoints() == null || dpnRead.getTunnelEndPoints().size() == 0) {
+ logger.debug( "Removing Terminating Service Table Flow ") ;
+ // setUpOrRemoveTerminatingServiceTable(dpnRead.getDPNID(), false);
+ logger.trace("DPN Removal from DPNTEPSINFO CONFIG DS " + dpnRead);
+ t.delete(LogicalDatastoreType.CONFIGURATION, dpnPath);
+ InstanceIdentifier<Tunnels> tnlContainerPath =
+ InstanceIdentifier.builder(Tunnels.class).build();
+ Optional<Tunnels> containerOptional =
+ ItmUtils.read(LogicalDatastoreType.CONFIGURATION,
+ tnlContainerPath, dataBroker);
+ // remove container if no DPNs are present
+ if (containerOptional.isPresent()) {
+ Tunnels tnls = containerOptional.get();
+ if (tnls.getDPNTEPsInfo() == null || tnls.getDPNTEPsInfo().isEmpty()) {
+ logger.trace("Container Removal from DPNTEPSINFO CONFIG DS");
+ t.delete(LogicalDatastoreType.CONFIGURATION, tnlContainerPath);
+ }
+ }
+ }
+ }
+ }
+ }
+ futures.add( t.submit() );
+ } catch (Exception e1) {
+ logger.error("exception while deleting tep", e1);
+ }
+ return futures ;
+ }
+
+ private static void removeTrunkInterface(DataBroker dataBroker, TunnelEndPoints srcTep, TunnelEndPoints dstTep, BigInteger srcDpnId, BigInteger dstDpnId,
+ WriteTransaction t, List<ListenableFuture<Void>> futures) {
+ String trunkfwdIfName =
+ ItmUtils.getTrunkInterfaceName(srcTep.getInterfaceName(), srcTep.getIpAddress()
+ .getIpv4Address().getValue(), dstTep.getIpAddress().getIpv4Address()
+ .getValue());
+ logger.trace("Removing forward Trunk Interface " + trunkfwdIfName);
+ InstanceIdentifier<Interface> trunkIdentifier = ItmUtils.buildId(trunkfwdIfName);
+ logger.debug( " Removing Trunk Interface Name - {} , Id - {} from Config DS {}, {} ", trunkfwdIfName, trunkIdentifier ) ;
+ t.delete(LogicalDatastoreType.CONFIGURATION, trunkIdentifier);
+ String trunkRevIfName =
+ ItmUtils.getTrunkInterfaceName(dstTep.getInterfaceName(), dstTep.getIpAddress()
+ .getIpv4Address().getValue(), srcTep.getIpAddress().getIpv4Address()
+ .getValue());
+ logger.trace("Removing Reverse Trunk Interface " + trunkRevIfName);
+ trunkIdentifier = ItmUtils.buildId(trunkfwdIfName);
+ logger.debug( " Removing Trunk Interface Name - {} , Id - {} from Config DS {}, {} ", trunkfwdIfName, trunkIdentifier ) ;
+ t.delete(LogicalDatastoreType.CONFIGURATION, trunkIdentifier);
+ }
+}