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