vpnservice/elanmanager/elanmanager-impl/src/main/java/org/opendaylight/netvirt/elan/internal/ElanSmacFlowEventListener.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.netvirt.elan.internal;
   9
  10 import java.math.BigInteger;
  11
  12 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  13 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  15 import org.opendaylight.genius.mdsalutil.NwConstants;
  16 import org.opendaylight.netvirt.elan.utils.ElanConstants;
  17 import org.opendaylight.netvirt.elan.utils.ElanUtils;
  18 import org.opendaylight.genius.interfacemanager.globals.InterfaceInfo;
  19 import org.opendaylight.genius.interfacemanager.interfaces.IInterfaceManager;
  20 import org.opendaylight.genius.mdsalutil.MetaDataUtil;
  21 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.PhysAddress;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowAdded;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowRemoved;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowUpdated;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.NodeErrorNotification;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.NodeExperimenterErrorNotification;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SalFlowListener;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SalFlowService;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SwitchFlowRemoved;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.tag.name.map.ElanTagName;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.forwarding.entries.MacEntry;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._if.indexes._interface.map.IfIndexInterface;
  34 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37
  38 import com.google.common.base.Optional;
  39 import com.google.common.util.concurrent.FutureCallback;
  40 import com.google.common.util.concurrent.Futures;
  41 import com.google.common.util.concurrent.ListenableFuture;
  42
  43 @SuppressWarnings("deprecation")
  44 public class ElanSmacFlowEventListener implements SalFlowListener {
  45
  46     private  ElanServiceProvider elanServiceProvider = null;
  47     private static volatile ElanSmacFlowEventListener elanSmacFlowEventListener = null;
  48     private static final Logger logger = LoggerFactory.getLogger(ElanSmacFlowEventListener.class);
  49
  50     public ElanSmacFlowEventListener(ElanServiceProvider elanServiceProvider) {
  51         this.elanServiceProvider = elanServiceProvider;
  52     }
  53
  54     public static ElanSmacFlowEventListener getElanSmacFlowEventListener(ElanServiceProvider elanServiceProvider) {
  55         if (elanSmacFlowEventListener == null)
  56             synchronized (ElanPacketInHandler.class) {
  57                 if (elanSmacFlowEventListener == null) {
  58                     elanSmacFlowEventListener = new ElanSmacFlowEventListener(elanServiceProvider);
  59                 }
  60             }
  61         return elanSmacFlowEventListener;
  62     }
  63
  64
  65     public void setMdSalApiManager(IMdsalApiManager mdsalManager) {
  66     }
  67     @Override
  68     public void onFlowAdded(FlowAdded arg0) {
  69         // TODO Auto-generated method stub
  70
  71     }
  72
  73     @Override
  74     public void onFlowRemoved(FlowRemoved flowRemoved) {
  75         short tableId = flowRemoved.getTableId();
  76         if (tableId == NwConstants.ELAN_SMAC_TABLE) {
  77             BigInteger metadata = flowRemoved.getMatch().getMetadata().getMetadata();
  78             long elanTag = MetaDataUtil.getElanTagFromMetadata(metadata);
  79             ElanTagName elanTagInfo = ElanUtils.getElanInfoByElanTag(elanTag);
  80             if (elanTagInfo == null) {
  81                 return;
  82             }
  83             final String srcMacAddress = flowRemoved.getMatch().getEthernetMatch()
  84                 .getEthernetSource().getAddress().getValue().toUpperCase();
  85             int portTag = MetaDataUtil.getLportFromMetadata(metadata).intValue();
  86             if (portTag == 0) {
  87                 logger.debug(String.format("Flow removed event on SMAC flow entry. But having port Tag as 0 "));
  88                 return;
  89             }
  90             Optional<IfIndexInterface> existingInterfaceInfo = ElanUtils.getInterfaceInfoByInterfaceTag(portTag);
  91             if (!existingInterfaceInfo.isPresent()) {
  92                 logger.debug("Interface is not available for port Tag {}", portTag);
  93                 return;
  94             }
  95             String interfaceName = existingInterfaceInfo.get().getInterfaceName();
  96             PhysAddress physAddress = new PhysAddress(srcMacAddress);
  97             if (interfaceName == null) {
  98                 logger.error(String.format("LPort record not found for tag %d", portTag));
  99                 return;
 100             }
 101             MacEntry macEntry = ElanUtils.getInterfaceMacEntriesOperationalDataPath(interfaceName, physAddress);
 102             InterfaceInfo interfaceInfo = elanServiceProvider.getInterfaceManager().getInterfaceInfo(interfaceName);
 103             if (macEntry != null && interfaceInfo != null) {
 104                 WriteTransaction deleteFlowTx = elanServiceProvider.getBroker().newWriteOnlyTransaction();
 105                 ElanUtils.deleteMacFlows(ElanUtils.getElanInstanceByName(elanTagInfo.getName()), interfaceInfo, macEntry, deleteFlowTx);
 106                 ListenableFuture<Void> result = deleteFlowTx.submit();
 107                 addCallBack(result, srcMacAddress);
 108             }
 109             InstanceIdentifier<MacEntry> macEntryIdForElanInterface =  ElanUtils.getInterfaceMacEntriesIdentifierOperationalDataPath(interfaceName, physAddress);
 110             InstanceIdentifier<MacEntry> macEntryIdForElanInstance  =  ElanUtils.getMacEntryOperationalDataPath(elanTagInfo.getName(), physAddress);
 111             WriteTransaction tx = elanServiceProvider.getBroker().newWriteOnlyTransaction();
 112             tx.delete(LogicalDatastoreType.OPERATIONAL, macEntryIdForElanInterface);
 113             tx.delete(LogicalDatastoreType.OPERATIONAL, macEntryIdForElanInstance);
 114             ListenableFuture<Void> writeResult = tx.submit();
 115             addCallBack(writeResult, srcMacAddress);
 116         }
 117
 118     }
 119
 120     private void addCallBack(ListenableFuture<Void> writeResult, String srcMacAddress) {
 121         //WRITE Callback
 122         Futures.addCallback(writeResult, new FutureCallback<Void>() {
 123             @Override
 124             public void onSuccess(Void noarg) {
 125                 logger.debug("Successfully removed macEntry {} from Operational Datastore", srcMacAddress);
 126             }
 127
 128             @Override
 129             public void onFailure(Throwable error) {
 130                 logger.debug("Error {} while removing macEntry {} from Operational Datastore", error, srcMacAddress);
 131             }
 132         });
 133     }
 134
 135     @Override
 136     public void onFlowUpdated(FlowUpdated arg0) {
 137         // TODO Auto-generated method stub
 138
 139     }
 140
 141     @Override
 142     public void onNodeErrorNotification(NodeErrorNotification arg0) {
 143         // TODO Auto-generated method stub
 144
 145     }
 146
 147     @Override
 148     public void onNodeExperimenterErrorNotification(NodeExperimenterErrorNotification arg0) {
 149         // TODO Auto-generated method stub
 150
 151     }
 152
 153     @Override
 154     public void onSwitchFlowRemoved(SwitchFlowRemoved switchFlowRemoved) {
 155
 156     }
 157
 158
 159 }