bgp/openconfig-spi/src/main/java/org/opendaylight/protocol/bgp/openconfig/spi/SimpleBGPTableTypeRegistryProvider.java

   1 /*
   2  * Copyright (c) 2016 Cisco Systems, Inc. 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
   9 package org.opendaylight.protocol.bgp.openconfig.spi;
  10
  11 import com.google.common.base.Preconditions;
  12 import com.google.common.collect.BiMap;
  13 import com.google.common.collect.HashBiMap;
  14 import java.util.Optional;
  15 import javax.annotation.Nonnull;
  16 import javax.annotation.concurrent.GuardedBy;
  17 import org.opendaylight.protocol.bgp.parser.BgpTableTypeImpl;
  18 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.types.rev151009.AfiSafiType;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev171207.BgpTableType;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.TablesKey;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.AddressFamily;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.SubsequentAddressFamily;
  23 import org.opendaylight.yangtools.concepts.AbstractRegistration;
  24
  25 public final class SimpleBGPTableTypeRegistryProvider implements BGPTableTypeRegistryProvider {
  26
  27     @GuardedBy("this")
  28     private final BiMap<BgpTableType, Class<? extends AfiSafiType>> tableTypes = HashBiMap.create();
  29     @GuardedBy("this")
  30     private final BiMap<TablesKey, Class<? extends AfiSafiType>> tableKeys = HashBiMap.create();
  31
  32     @Override
  33     public synchronized AbstractRegistration registerBGPTableType(final Class<? extends AddressFamily> afi,
  34             final Class<? extends SubsequentAddressFamily> safi, final Class<? extends AfiSafiType> afiSafiType) {
  35         final BgpTableType tableType = new BgpTableTypeImpl(afi, safi);
  36         final Class<? extends AfiSafiType> prev = this.tableTypes.putIfAbsent(tableType, afiSafiType);
  37         Preconditions.checkState(prev == null, "AFI %s SAFI %s is already registered with %s",
  38                 afi, safi, prev);
  39         final TablesKey tableKey = new TablesKey(tableType.getAfi(), tableType.getSafi());
  40         this.tableKeys.put(tableKey, afiSafiType);
  41
  42         return new AbstractRegistration() {
  43             @Override
  44             protected void removeRegistration() {
  45                 synchronized (SimpleBGPTableTypeRegistryProvider.this) {
  46                     SimpleBGPTableTypeRegistryProvider.this.tableTypes.remove(tableType);
  47                     SimpleBGPTableTypeRegistryProvider.this.tableKeys.remove(tableKey);
  48                 }
  49             }
  50         };
  51     }
  52
  53     @Override
  54     public synchronized Optional<BgpTableType> getTableType(final Class<? extends AfiSafiType> afiSafiType) {
  55         final BgpTableType tableType = this.tableTypes.inverse().get(afiSafiType);
  56         return Optional.ofNullable(tableType);
  57     }
  58
  59     @Nonnull
  60     @Override
  61     public Optional<TablesKey> getTableKey(@Nonnull final Class<? extends AfiSafiType> afiSafiType) {
  62         final TablesKey tableKey = this.tableKeys.inverse().get(afiSafiType);
  63         return Optional.ofNullable(tableKey);
  64     }
  65
  66     @Override
  67     public synchronized Optional<Class<? extends AfiSafiType>> getAfiSafiType(final BgpTableType bgpTableType) {
  68         final Class<? extends AfiSafiType> afiSafi = this.tableTypes.get(bgpTableType);
  69         return Optional.ofNullable(afiSafi);
  70     }
  71
  72     @Nonnull
  73     @Override
  74     public Optional<Class<? extends AfiSafiType>> getAfiSafiType(@Nonnull final TablesKey tablesKey) {
  75         final Class<? extends AfiSafiType> afiSafi = this.tableKeys.get(tablesKey);
  76         return Optional.ofNullable(afiSafi);
  77     }
  78
  79 }