interfacemanager/interfacemanager-impl/src/main/java/org/opendaylight/genius/interfacemanager/renderer/ovs/statehelpers/OvsInterfaceStateRemoveHelper.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.genius.interfacemanager.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.genius.interfacemanager.IfmUtil;
  14 import org.opendaylight.genius.interfacemanager.commons.AlivenessMonitorUtils;
  15 import org.opendaylight.genius.interfacemanager.commons.InterfaceManagerCommonUtils;
  16 import org.opendaylight.genius.interfacemanager.commons.InterfaceMetaUtils;
  17 import org.opendaylight.genius.interfacemanager.servicebindings.flowbased.utilities.FlowBasedServicesUtils;
  18 import org.opendaylight.genius.mdsalutil.NwConstants;
  19 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeConnector;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.alivenessmonitor.rev160411.AlivenessMonitorService;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.idmanager.rev160406.IdManagerService;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.IfTunnel;
  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 OvsInterfaceStateRemoveHelper {
  33     private static final Logger LOG = LoggerFactory.getLogger(OvsInterfaceStateRemoveHelper.class);
  34
  35     public static List<ListenableFuture<Void>> removeInterfaceStateConfiguration(IdManagerService idManager, IMdsalApiManager mdsalApiManager,
  36                                                                                  AlivenessMonitorService alivenessMonitorService,
  37                                                                                  NodeConnectorId nodeConnectorIdNew, NodeConnectorId nodeConnectorIdOld,
  38                                                                                  DataBroker dataBroker, String interfaceName,
  39                                                                                  FlowCapableNodeConnector fcNodeConnectorOld) {
  40         LOG.debug("Removing interface-state information for interface: {}", interfaceName);
  41         List<ListenableFuture<Void>> futures = new ArrayList<>();
  42         WriteTransaction transaction = dataBroker.newWriteOnlyTransaction();
  43
  44         //VM Migration: Use old nodeConnectorId to delete the interface entry
  45         NodeConnectorId nodeConnectorId = nodeConnectorIdOld != null && !nodeConnectorIdNew.equals(nodeConnectorIdOld) ?
  46                 nodeConnectorIdOld : nodeConnectorIdNew;
  47         // delete the port entry from interface operational DS
  48         BigInteger dpId = new BigInteger(IfmUtil.getDpnFromNodeConnectorId(nodeConnectorId));
  49
  50         //VM Migration: Update the interface state to unknown only if remove event received for same switch
  51         if(!InterfaceManagerCommonUtils.isNodePresent(dataBroker,nodeConnectorId) && nodeConnectorIdNew.equals(nodeConnectorIdOld)){
  52             //Remove event is because of connection lost between controller and switch, or switch shutdown.
  53             // Hence, dont remove the interface but set the status as "unknown"
  54             OvsInterfaceStateUpdateHelper.updateInterfaceStateOnNodeRemove(interfaceName, fcNodeConnectorOld, dataBroker,
  55                     alivenessMonitorService, transaction);
  56         }else{
  57             InterfaceManagerCommonUtils.deleteStateEntry(interfaceName, transaction);
  58
  59             org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface iface =
  60                     InterfaceManagerCommonUtils.getInterfaceFromConfigDS(interfaceName, dataBroker);
  61             if(iface != null) {
  62                 // If this interface is a tunnel interface, remove the tunnel ingress flow and stop lldp monitoring
  63                 if (InterfaceManagerCommonUtils.isTunnelInterface(iface)) {
  64                     InterfaceMetaUtils.removeLportTagInterfaceMap(idManager, transaction, interfaceName);
  65                     handleTunnelMonitoringRemoval(alivenessMonitorService, mdsalApiManager, dataBroker, dpId,
  66                             iface.getName(), iface.getAugmentation(IfTunnel.class), transaction,
  67                             nodeConnectorId, futures);
  68                     return futures;
  69                 }
  70             }
  71             // remove ingress flow only for northbound configured interfaces
  72             if(iface != null || (iface == null && interfaceName != fcNodeConnectorOld.getName())) {
  73                 FlowBasedServicesUtils.removeIngressFlow(interfaceName, dpId, transaction);
  74             }
  75         }
  76         futures.add(transaction.submit());
  77         return futures;
  78     }
  79
  80     public static void handleTunnelMonitoringRemoval(AlivenessMonitorService alivenessMonitorService, IMdsalApiManager mdsalApiManager,
  81                                                      DataBroker dataBroker, BigInteger dpId, String interfaceName,
  82                                                      IfTunnel ifTunnel, WriteTransaction transaction,
  83                                                      NodeConnectorId nodeConnectorId, List<ListenableFuture<Void>> futures){
  84         long portNo = Long.valueOf(IfmUtil.getPortNoFromNodeConnectorId(nodeConnectorId));
  85         InterfaceManagerCommonUtils.makeTunnelIngressFlow(futures, mdsalApiManager, ifTunnel, dpId, portNo, interfaceName, -1,
  86                 NwConstants.DEL_FLOW);
  87         futures.add(transaction.submit());
  88         AlivenessMonitorUtils.stopLLDPMonitoring(alivenessMonitorService, dataBroker, ifTunnel, interfaceName);
  89     }
  90 }