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.controller.md.sal.common.api.data.LogicalDatastoreType;
  14 import org.opendaylight.genius.interfacemanager.IfmUtil;
  15 import org.opendaylight.genius.interfacemanager.commons.AlivenessMonitorUtils;
  16 import org.opendaylight.genius.interfacemanager.commons.InterfaceManagerCommonUtils;
  17 import org.opendaylight.genius.interfacemanager.commons.InterfaceMetaUtils;
  18 import org.opendaylight.genius.interfacemanager.servicebindings.flowbased.utilities.FlowBasedServicesUtils;
  19 import org.opendaylight.genius.mdsalutil.NwConstants;
  20 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
  21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.InterfaceKey;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeConnector;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.alivenessmonitor.rev160411.AlivenessMonitorService;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.idmanager.rev160406.IdManagerService;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._interface.child.info.InterfaceParentEntry;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._interface.child.info.InterfaceParentEntryKey;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._interface.child.info._interface.parent.entry.InterfaceChildEntry;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.IfTunnel;
  32 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  33 import org.slf4j.Logger;
  34 import org.slf4j.LoggerFactory;
  35
  36 import java.math.BigInteger;
  37 import java.util.ArrayList;
  38 import java.util.List;
  39
  40 public class OvsInterfaceStateRemoveHelper {
  41     private static final Logger LOG = LoggerFactory.getLogger(OvsInterfaceStateRemoveHelper.class);
  42
  43     public static List<ListenableFuture<Void>> removeInterfaceStateConfiguration(IdManagerService idManager, IMdsalApiManager mdsalApiManager,
  44                                                                                  AlivenessMonitorService alivenessMonitorService,
  45                                                                                  InstanceIdentifier<FlowCapableNodeConnector> key,
  46                                                                                  DataBroker dataBroker, String interfaceName, FlowCapableNodeConnector fcNodeConnectorOld) {
  47         LOG.debug("Removing interface-state information for interface: {}", interfaceName);
  48         List<ListenableFuture<Void>> futures = new ArrayList<>();
  49         WriteTransaction transaction = dataBroker.newWriteOnlyTransaction();
  50
  51         // delete the port entry from interface operational DS
  52         NodeConnectorId nodeConnectorId = InstanceIdentifier.keyOf(key.firstIdentifierOf(NodeConnector.class)).getId();
  53         BigInteger dpId = new BigInteger(IfmUtil.getDpnFromNodeConnectorId(nodeConnectorId));
  54
  55         if (!InterfaceManagerCommonUtils.isNodePresent(dataBroker, nodeConnectorId)) {
  56             //Remove event is because of connection lost between controller and switch, or switch shutdown.
  57             // Hence, dont remove the interface but set the status as "unknown"
  58             OvsInterfaceStateUpdateHelper.updateInterfaceStateOnNodeRemove(key, interfaceName, dataBroker, alivenessMonitorService, transaction);
  59
  60         } else {
  61             InterfaceManagerCommonUtils.deleteStateEntry(interfaceName, transaction);
  62
  63             org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface iface =
  64                     InterfaceManagerCommonUtils.getInterfaceFromConfigDS(interfaceName, dataBroker);
  65             if (iface != null) {
  66                 // If this interface is a tunnel interface, remove the tunnel ingress flow and stop lldp monitoring
  67                 if (InterfaceManagerCommonUtils.isTunnelInterface(iface)) {
  68                     InterfaceMetaUtils.removeLportTagInterfaceMap(idManager, transaction, interfaceName);
  69                     handleTunnelMonitoringRemoval(alivenessMonitorService, mdsalApiManager, dataBroker, dpId,
  70                             iface.getName(), iface.getAugmentation(IfTunnel.class), transaction,
  71                             nodeConnectorId, futures);
  72                     return futures;
  73                 }
  74             }
  75             FlowBasedServicesUtils.removeIngressFlow(interfaceName, dpId, transaction);
  76         }
  77         futures.add(transaction.submit());
  78         return futures;
  79     }
  80
  81     public static void handleTunnelMonitoringRemoval(AlivenessMonitorService alivenessMonitorService, IMdsalApiManager mdsalApiManager,
  82                                                      DataBroker dataBroker, BigInteger dpId, String interfaceName,
  83                                                      IfTunnel ifTunnel, WriteTransaction transaction,
  84                                                      NodeConnectorId nodeConnectorId, List<ListenableFuture<Void>> futures) {
  85         long portNo = Long.valueOf(IfmUtil.getPortNoFromNodeConnectorId(nodeConnectorId));
  86         InterfaceManagerCommonUtils.makeTunnelIngressFlow(futures, mdsalApiManager, ifTunnel, dpId, portNo, interfaceName, -1,
  87                 NwConstants.DEL_FLOW);
  88         futures.add(transaction.submit());
  89         AlivenessMonitorUtils.stopLLDPMonitoring(alivenessMonitorService, dataBroker, ifTunnel, interfaceName);
  90     }
  91 }