vpnservice/bgpmanager/bgpmanager-impl/src/main/java/org/opendaylight/netvirt/bgpmanager/FibDSWriter.java

   1 /*
   2  * Copyright (c) 2015 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.bgpmanager;
   9
  10 import com.google.common.base.Preconditions;
  11 import java.util.List;
  12 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  13 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  14 import org.opendaylight.netvirt.fibmanager.api.RouteOrigin;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.fibmanager.rev150330.FibEntries;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.fibmanager.rev150330.fibentries.VrfTables;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.fibmanager.rev150330.fibentries.VrfTablesKey;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.fibmanager.rev150330.vrfentries.VrfEntry;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.fibmanager.rev150330.vrfentries.VrfEntryBuilder;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.fibmanager.rev150330.vrfentries.VrfEntryKey;
  21 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  22 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier.InstanceIdentifierBuilder;
  23 import org.slf4j.Logger;
  24 import org.slf4j.LoggerFactory;
  25
  26 public class FibDSWriter {
  27     private static final Logger LOG = LoggerFactory.getLogger(FibDSWriter.class);
  28     private final DataBroker dataBroker;
  29
  30     public FibDSWriter(final DataBroker dataBroker) {
  31         this.dataBroker = dataBroker;
  32     }
  33
  34     public synchronized void addFibEntryToDS(String rd, String macAddress, String prefix, List<String> nextHopList,
  35                                              VrfEntry.EncapType encapType, int label, long l3vni,
  36                                              String gatewayMacAddress, RouteOrigin origin) {
  37         if (rd == null || rd.isEmpty()) {
  38             LOG.error("Prefix {} not associated with vpn", prefix);
  39             return;
  40         }
  41
  42         Preconditions.checkNotNull(nextHopList, "NextHopList can't be null");
  43
  44         for (String nextHop : nextHopList) {
  45             if (nextHop == null || nextHop.isEmpty()) {
  46                 LOG.error("nextHop list contains null element");
  47                 return;
  48             }
  49             LOG.debug("Created vrfEntry for {} nexthop {} label {}", prefix, nextHop, label);
  50
  51         }
  52
  53         // Looking for existing prefix in MDSAL database
  54         InstanceIdentifier<VrfEntry> vrfEntryId =
  55                 InstanceIdentifier.builder(FibEntries.class)
  56                         .child(VrfTables.class, new VrfTablesKey(rd))
  57                         .child(VrfEntry.class, new VrfEntryKey(prefix)).build();
  58
  59         VrfEntryBuilder vrfEntryBuilder = new VrfEntryBuilder().setDestPrefix(prefix)
  60                 .setNextHopAddressList(nextHopList).setLabel((long)label).setOrigin(origin.getValue());
  61         buildVpnEncapSpecificInfo(vrfEntryBuilder, encapType, (long)label, l3vni, macAddress, gatewayMacAddress);
  62         BgpUtil.write(dataBroker, LogicalDatastoreType.CONFIGURATION, vrfEntryId, vrfEntryBuilder.build());
  63     }
  64
  65     private static void buildVpnEncapSpecificInfo(VrfEntryBuilder builder, VrfEntry.EncapType encapType, long label,
  66                                                   long l3vni, String macAddress, String gatewayMac) {
  67         if (encapType.equals(VrfEntry.EncapType.Mplsgre)) {
  68             builder.setLabel(label);
  69         } else {
  70             builder.setL3vni(l3vni).setGatewayMacAddress(gatewayMac);
  71         }
  72         builder.setEncapType(encapType);
  73     }
  74
  75     public synchronized void removeFibEntryFromDS(String rd, String prefix) {
  76
  77         if (rd == null || rd.isEmpty()) {
  78             LOG.error("Prefix {} not associated with vpn", prefix);
  79             return;
  80         }
  81         LOG.debug("Removing fib entry with destination prefix {} from vrf table for rd {}", prefix, rd);
  82
  83         InstanceIdentifierBuilder<VrfEntry> idBuilder =
  84                 InstanceIdentifier.builder(FibEntries.class).child(VrfTables.class, new VrfTablesKey(rd)).child(
  85                         VrfEntry.class, new VrfEntryKey(prefix));
  86         InstanceIdentifier<VrfEntry> vrfEntryId = idBuilder.build();
  87         BgpUtil.delete(dataBroker, LogicalDatastoreType.CONFIGURATION, vrfEntryId);
  88
  89     }
  90
  91     public synchronized void removeVrfFromDS(String rd) {
  92         LOG.debug("Removing vrf table for  rd {}", rd);
  93
  94         InstanceIdentifierBuilder<VrfTables> idBuilder =
  95                 InstanceIdentifier.builder(FibEntries.class).child(VrfTables.class, new VrfTablesKey(rd));
  96         InstanceIdentifier<VrfTables> vrfTableId = idBuilder.build();
  97
  98         BgpUtil.delete(dataBroker, LogicalDatastoreType.CONFIGURATION, vrfTableId);
  99
 100     }
 101 }