vpnservice/elanmanager/elanmanager-impl/src/main/java/org/opendaylight/vpnservice/elan/internal/ElanForwardingEntriesHandler.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.elan.internal;
   9
  10
  11 import com.google.common.base.Optional;
  12 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  13 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
  14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  15 import org.opendaylight.vpnservice.elan.utils.ElanUtils;
  16 import org.opendaylight.vpnservice.interfacemgr.globals.InterfaceInfo;
  17 import org.opendaylight.vpnservice.itm.api.IITMProvider;
  18 import org.opendaylight.vpnservice.mdsalutil.AbstractDataChangeListener;
  19 import org.opendaylight.vpnservice.mdsalutil.MDSALUtil;
  20 import org.opendaylight.vpnservice.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.vpnservice.elan.rev150602.ElanInterfaces;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.elan.rev150602.elan.instances.ElanInstance;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.elan.rev150602.elan.interfaces.ElanInterface;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.elan.rev150602.forwarding.entries.MacEntry;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.elan.rev150602.forwarding.entries.MacEntryBuilder;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.elan.rev150602.forwarding.entries.MacEntryKey;
  28 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  29 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33
  34 public class ElanForwardingEntriesHandler extends AbstractDataChangeListener<ElanInterface> implements AutoCloseable {
  35
  36     private static final Logger logger = LoggerFactory.getLogger(ElanForwardingEntriesHandler.class);
  37     private DataBroker broker;
  38     private ListenerRegistration<DataChangeListener> listenerRegistration;
  39
  40     public ElanForwardingEntriesHandler(DataBroker db){
  41         super(ElanInterface.class);
  42         this.broker = db;
  43     }
  44
  45     private InstanceIdentifier<?> getWildCardPath() {
  46         return InstanceIdentifier.create(ElanInterfaces.class).child(ElanInterface.class);
  47     }
  48
  49     public void updateElanInterfaceForwardingTablesList(String elanInstanceName, String interfaceName, String existingInterfaceName, MacEntry mac) {
  50         if(existingInterfaceName == interfaceName) {
  51             logger.error(String.format("Static MAC address %s has already been added for the same ElanInstance %s on the same Logical Interface Port %s."
  52                     + " No operation will be done.", mac.getMacAddress().toString(), elanInstanceName, interfaceName));
  53         } else {
  54             logger.warn(String.format("Static MAC address %s had already been added for ElanInstance %s on Logical Interface Port %s. "
  55                     + "This would be considered as MAC movement scenario and old static mac will be removed and new static MAC will be added"
  56                     + "for ElanInstance %s on Logical Interface Port %s", mac.getMacAddress().toString(), elanInstanceName, interfaceName, elanInstanceName, interfaceName));
  57             //Update the  ElanInterface Forwarding Container & ElanForwarding Container
  58             deleteElanInterfaceForwardingTablesList(existingInterfaceName, mac);
  59             createElanInterfaceForwardingTablesList(interfaceName, mac);
  60             updateElanForwardingTablesList(elanInstanceName, interfaceName, mac);
  61         }
  62
  63     }
  64
  65     public void addElanInterfaceForwardingTableList(ElanInstance elanInstance, String interfaceName, PhysAddress physAddress) {
  66         MacEntry macEntry = new MacEntryBuilder().setIsStaticAddress(true).setMacAddress(physAddress).setInterface(interfaceName).setKey(new MacEntryKey(physAddress)).build();
  67         createElanForwardingTablesList(elanInstance.getElanInstanceName(), macEntry);
  68         createElanInterfaceForwardingTablesList(interfaceName, macEntry);
  69     }
  70
  71     public void deleteElanInterfaceForwardingTablesList(String interfaceName, MacEntry mac) {
  72         InstanceIdentifier<MacEntry> existingMacEntryId = ElanUtils.getInterfaceMacEntriesIdentifierOperationalDataPath(interfaceName, mac.getMacAddress());
  73         MacEntry existingInterfaceMacEntry = ElanUtils.getInterfaceMacEntriesOperationalDataPathFromId(existingMacEntryId);
  74         if(existingInterfaceMacEntry != null) {
  75             ElanUtils.delete(broker, LogicalDatastoreType.OPERATIONAL, existingMacEntryId);
  76         }
  77     }
  78
  79     public void createElanInterfaceForwardingTablesList(String interfaceName, MacEntry mac) {
  80         InstanceIdentifier<MacEntry> existingMacEntryId = ElanUtils.getInterfaceMacEntriesIdentifierOperationalDataPath(interfaceName, mac.getMacAddress());
  81         MacEntry existingInterfaceMacEntry = ElanUtils.getInterfaceMacEntriesOperationalDataPathFromId(existingMacEntryId);
  82         if(existingInterfaceMacEntry == null) {
  83             MacEntry macEntry = new MacEntryBuilder().setMacAddress(mac.getMacAddress()).setInterface(interfaceName).setIsStaticAddress(true).setKey(new MacEntryKey(mac.getMacAddress())).build();
  84             MDSALUtil.syncWrite(broker, LogicalDatastoreType.OPERATIONAL, existingMacEntryId, macEntry);
  85
  86         }
  87     }
  88
  89     public void updateElanForwardingTablesList(String elanName, String interfaceName, MacEntry mac) {
  90         InstanceIdentifier<MacEntry> macEntryId =  ElanUtils.getMacEntryOperationalDataPath(elanName, mac.getMacAddress());
  91         MacEntry existingMacEntry = ElanUtils.getMacEntryFromElanMacId(macEntryId);
  92         if(existingMacEntry != null) {
  93             ElanUtils.delete(broker, LogicalDatastoreType.OPERATIONAL, macEntryId);
  94             MacEntry newMacEntry = new MacEntryBuilder().setInterface(interfaceName).setIsStaticAddress(true).setMacAddress(mac.getMacAddress()).setKey(new MacEntryKey(mac.getMacAddress())).build();
  95             MDSALUtil.syncWrite(broker, LogicalDatastoreType.OPERATIONAL, macEntryId, newMacEntry);
  96         }
  97     }
  98
  99     private void createElanForwardingTablesList(String elanName, MacEntry macEntry) {
 100         InstanceIdentifier<MacEntry> macEntryId = ElanUtils.getMacEntryOperationalDataPath(elanName, macEntry.getMacAddress());
 101         Optional<MacEntry> existingMacEntry = ElanUtils.read(broker, LogicalDatastoreType.OPERATIONAL, macEntryId);
 102         if(!existingMacEntry.isPresent()) {
 103             MDSALUtil.syncWrite(broker, LogicalDatastoreType.OPERATIONAL, macEntryId, macEntry);
 104         }
 105     }
 106
 107     public void deleteElanInterfaceForwardingEntries(ElanInstance elanInfo, InterfaceInfo interfaceInfo, MacEntry macEntry) {
 108         InstanceIdentifier<MacEntry> macEntryId = ElanUtils.getMacEntryOperationalDataPath(elanInfo.getElanInstanceName(), macEntry.getMacAddress());
 109         ElanUtils.delete(broker, LogicalDatastoreType.OPERATIONAL, macEntryId);
 110         deleteElanInterfaceForwardingTablesList(interfaceInfo.getInterfaceName(), macEntry);
 111         ElanUtils.deleteMacFlows(elanInfo, interfaceInfo, macEntry);
 112     }
 113
 114     public void deleteElanInterfaceMacForwardingEntries(String interfaceName, PhysAddress physAddress) {
 115         InstanceIdentifier<MacEntry> macEntryId = ElanUtils.getInterfaceMacEntriesIdentifierOperationalDataPath(interfaceName, physAddress);
 116         ElanUtils.delete(broker, LogicalDatastoreType.OPERATIONAL, macEntryId);
 117     }
 118
 119     @Override
 120     protected void remove(InstanceIdentifier<ElanInterface> identifier, ElanInterface del) {
 121
 122     }
 123
 124     @Override
 125     protected void update(InstanceIdentifier<ElanInterface> identifier, ElanInterface original, ElanInterface update) {
 126
 127     }
 128
 129     @Override
 130     protected void add(InstanceIdentifier<ElanInterface> identifier, ElanInterface add) {
 131
 132     }
 133
 134     @Override
 135     public void close() throws Exception {
 136         if (listenerRegistration != null) {
 137             try {
 138                 listenerRegistration.close();
 139             } catch (final Exception e) {
 140                 logger.error("Error when cleaning up Elan DataChangeListener.", e);
 141             }
 142             listenerRegistration = null;
 143         }
 144     }
 145 }