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.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentation;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbTerminationPointAugmentation;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.InterfaceBfdStatus;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.meta.rev151007.bridge._interface.info.BridgeEntry;
  21 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  22 import org.slf4j.Logger;
  23 import org.slf4j.LoggerFactory;
  24
  25 import java.math.BigInteger;
  26 import java.util.ArrayList;
  27 import java.util.List;
  28
  29 public class OvsInterfaceTopologyStateUpdateHelper {
  30     private static final Logger LOG = LoggerFactory.getLogger(OvsInterfaceTopologyStateUpdateHelper.class);
  31     /*
  32      *  This code is used to handle only a dpnId change scenario for a particular change,
  33      * which is not expected to happen in usual cases.
  34      */
  35     public static List<ListenableFuture<Void>> updateBridgeRefEntry(InstanceIdentifier<OvsdbBridgeAugmentation> bridgeIid,
  36                                                                     OvsdbBridgeAugmentation bridgeNew,
  37                                                                     OvsdbBridgeAugmentation bridgeOld,
  38                                                                     DataBroker dataBroker) {
  39         List<ListenableFuture<Void>> futures = new ArrayList<>();
  40         WriteTransaction writeTransaction = dataBroker.newWriteOnlyTransaction();
  41
  42         BigInteger dpnIdNew = IfmUtil.getDpnId(bridgeNew.getDatapathId());
  43         BigInteger dpnIdOld = IfmUtil.getDpnId(bridgeOld.getDatapathId());
  44
  45         //delete bridge reference entry for the old dpn in interface meta operational DS
  46         InterfaceMetaUtils.deleteBridgeRefEntry(dpnIdOld, writeTransaction);
  47
  48         // create bridge reference entry in interface meta operational DS
  49         InterfaceMetaUtils.createBridgeRefEntry(dpnIdNew, bridgeIid, writeTransaction);
  50
  51         // handle pre-provisioning of tunnels for the newly connected dpn
  52         BridgeEntry bridgeEntry = InterfaceMetaUtils.getBridgeEntryFromConfigDS(dpnIdNew, dataBroker);
  53         if (bridgeEntry == null) {
  54             futures.add(writeTransaction.submit());
  55             return futures;
  56         }
  57         SouthboundUtils.addAllPortsToBridge(bridgeEntry, dataBroker, bridgeIid, bridgeNew, writeTransaction);
  58
  59         futures.add(writeTransaction.submit());
  60         return futures;
  61     }
  62
  63     public static List<ListenableFuture<Void>> updateTunnelState(DataBroker dataBroker,
  64                                                                  OvsdbTerminationPointAugmentation terminationPointNew,
  65                                                                  OvsdbTerminationPointAugmentation terminationPointOld) {
  66         List<ListenableFuture<Void>> futures = new ArrayList<ListenableFuture<Void>>();
  67
  68         if (InterfaceManagerCommonUtils.getInterfaceStateFromOperDS(terminationPointNew.getName(), dataBroker) == null) {
  69             return futures;
  70         }
  71         // update opstate of interface if TEP has gone down/up as a result of BFD monitoring
  72         LOG.debug("updating tunnel state for interface {}", terminationPointNew.getName());
  73         WriteTransaction transaction = dataBroker.newWriteOnlyTransaction();
  74         InterfaceManagerCommonUtils.updateOpState(transaction, terminationPointNew.getName(), getTunnelOpState(terminationPointNew.getInterfaceBfdStatus()));
  75         futures.add(transaction.submit());
  76         return futures;
  77     }
  78
  79     private static org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus
  80     getTunnelOpState(List<InterfaceBfdStatus> tunnelBfdStatus) {
  81         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus
  82                 livenessState = org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus.Down;
  83         if (tunnelBfdStatus != null && !tunnelBfdStatus.isEmpty()) {
  84             for (InterfaceBfdStatus bfdState : tunnelBfdStatus) {
  85                 if (bfdState.getBfdStatusKey().equalsIgnoreCase(SouthboundUtils.BFD_OP_STATE)) {
  86                     String bfdOpState = bfdState.getBfdStatusValue();
  87                     if (bfdOpState.equalsIgnoreCase(SouthboundUtils.BFD_STATE_UP)) {
  88                         livenessState = org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus.Up;
  89                     } else {
  90                         livenessState = org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus.Down;
  91                     }
  92                     break;
  93                 }
  94             }
  95         }
  96         return livenessState;
  97     }
  98 }