interfacemgr/interfacemgr-impl/src/main/java/org/opendaylight/vpnservice/interfacemgr/renderer/ovs/statehelpers/OvsInterfaceTopologyStateUpdateHelper.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.vpnservice.interfacemgr.renderer.ovs.statehelpers;
   9
  10 import com.google.common.util.concurrent.ListenableFuture;
  11 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  12 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  13 import org.opendaylight.vpnservice.interfacemgr.IfmUtil;
  14 import org.opendaylight.vpnservice.interfacemgr.commons.InterfaceManagerCommonUtils;
  15 import org.opendaylight.vpnservice.interfacemgr.commons.InterfaceMetaUtils;
  16 import org.opendaylight.vpnservice.interfacemgr.renderer.ovs.utilities.SouthboundUtils;
  17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.InterfaceKey;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentation;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.meta.rev151007.bridge._interface.info.BridgeEntry;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.meta.rev151007.bridge._interface.info.BridgeEntryKey;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.meta.rev151007.bridge._interface.info.bridge.entry.BridgeInterfaceEntry;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rev150331.IfTunnel;
  24 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28 import java.math.BigInteger;
  29 import java.util.ArrayList;
  30 import java.util.List;
  31
  32 public class OvsInterfaceTopologyStateUpdateHelper {
  33     private static final Logger LOG = LoggerFactory.getLogger(OvsInterfaceTopologyStateUpdateHelper.class);
  34     /*
  35      *  This code is used to handle only a dpnId change scenario for a particular change,
  36      * which is not expected to happen in usual cases.
  37      */
  38     public static List<ListenableFuture<Void>> updateBridgeRefEntry(InstanceIdentifier<OvsdbBridgeAugmentation> bridgeIid,
  39                                                                     OvsdbBridgeAugmentation bridgeNew,
  40                                                                     OvsdbBridgeAugmentation bridgeOld,
  41                                                                     DataBroker dataBroker) {
  42         List<ListenableFuture<Void>> futures = new ArrayList<>();
  43         WriteTransaction writeTransaction = dataBroker.newWriteOnlyTransaction();
  44
  45         BigInteger dpnIdNew = IfmUtil.getDpnId(bridgeNew.getDatapathId());
  46         BigInteger dpnIdOld = IfmUtil.getDpnId(bridgeOld.getDatapathId());
  47
  48         //delete bridge reference entry for the old dpn in interface meta operational DS
  49         InterfaceMetaUtils.deleteBridgeRefEntry(dpnIdOld, writeTransaction);
  50
  51         // create bridge reference entry in interface meta operational DS
  52         InterfaceMetaUtils.createBridgeRefEntry(dpnIdNew, bridgeIid, writeTransaction);
  53
  54         // handle pre-provisioning of tunnels for the newly connected dpn
  55         BridgeEntry bridgeEntry = InterfaceMetaUtils.getBridgeEntryFromConfigDS(dpnIdNew, dataBroker);
  56         if (bridgeEntry == null) {
  57             futures.add(writeTransaction.submit());
  58             return futures;
  59         }
  60         SouthboundUtils.addAllPortsToBridge(bridgeEntry, dataBroker, bridgeIid, bridgeNew, writeTransaction);
  61
  62         futures.add(writeTransaction.submit());
  63         return futures;
  64     }
  65 }