diff options
Diffstat (limited to 'infra/northbound/bgp/src/main/java/io/fd/honeycomb/infra/bgp/BgpWriterFactoryProvider.java')
-rw-r--r-- | infra/northbound/bgp/src/main/java/io/fd/honeycomb/infra/bgp/BgpWriterFactoryProvider.java | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/infra/northbound/bgp/src/main/java/io/fd/honeycomb/infra/bgp/BgpWriterFactoryProvider.java b/infra/northbound/bgp/src/main/java/io/fd/honeycomb/infra/bgp/BgpWriterFactoryProvider.java new file mode 100644 index 000000000..81faabbe5 --- /dev/null +++ b/infra/northbound/bgp/src/main/java/io/fd/honeycomb/infra/bgp/BgpWriterFactoryProvider.java @@ -0,0 +1,102 @@ +/* + * Copyright (c) 2017 Cisco and/or its affiliates. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package io.fd.honeycomb.infra.bgp; + +import com.google.common.collect.Sets; +import com.google.inject.Inject; +import com.google.inject.name.Named; +import io.fd.honeycomb.infra.distro.ProviderTrait; +import io.fd.honeycomb.translate.util.write.BindingBrokerWriter; +import io.fd.honeycomb.translate.write.WriterFactory; +import io.fd.honeycomb.translate.write.registry.ModifiableWriterRegistryBuilder; +import org.opendaylight.controller.md.sal.binding.api.DataBroker; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.routes.Ipv4Routes; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.routes.ipv4.routes.Ipv4Route; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.labeled.unicast.rev150525.labeled.unicast.LabelStack; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.labeled.unicast.rev150525.labeled.unicast.routes.LabeledUnicastRoutes; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.labeled.unicast.rev150525.labeled.unicast.routes.list.LabeledUnicastRoute; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.Attributes; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.attributes.LocalPref; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.attributes.Origin; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.ApplicationRib; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.Tables; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.ipv4.next.hop._case.Ipv4NextHop; +import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; + +final class BgpWriterFactoryProvider extends ProviderTrait<WriterFactory> { + @Inject + @Named(BgpModule.HONEYCOMB_BGP) + private DataBroker bgpDataBroker; + @Override + protected BgpWriterFactory create() { + return new BgpWriterFactory(bgpDataBroker); + } + + /** + * {@link WriterFactory} for BGP cfg write integration with HC writer registry. + * Using BindingBrokerWriter to write BGP configuration data via dedicated broker that, unlike + * {@link io.fd.honeycomb.data.impl.DataBroker}, supports tx chains and DOMDataChangeListener registration + * extensively used by ODL's bgp. + * + * As a bonus BGP route configuration is persisted and available for read via RESTCONF/NETCONF. + */ + private static final class BgpWriterFactory implements WriterFactory { + private final DataBroker dataBroker; + + private static final InstanceIdentifier<ApplicationRib> AR_IID = + InstanceIdentifier.create(ApplicationRib.class); + private static final InstanceIdentifier<Tables> TABLES_IID = AR_IID.child(Tables.class); + private static final InstanceIdentifier<Ipv4Routes> IPV4_ROUTES_IID = TABLES_IID.child((Class) Ipv4Routes.class); + private static final InstanceIdentifier<Ipv4Route> IPV4_ROUTE_IID = IPV4_ROUTES_IID.child(Ipv4Route.class); + private static final InstanceIdentifier<LabeledUnicastRoutes> LABELED_UNICAST_ROUTES_IID = TABLES_IID.child((Class) LabeledUnicastRoutes.class); + private static final InstanceIdentifier<LabeledUnicastRoute> LABELED_UNICAST_ROUTE_IID = LABELED_UNICAST_ROUTES_IID.child(LabeledUnicastRoute.class); + + private BgpWriterFactory(final DataBroker dataBroker) { + this.dataBroker = dataBroker; + } + + // TODO (HONEYCOMB-359): + // BGP models are huge, we need some kind of wildcarded subtree writer, that works for whole subtree. + // 1) we can either move checking handledTypes to writers (getHandledTypes, isAffected, writer.getHandedTypes, ...) + // but then precondition check in flatWriterRegistry might be slower (we need to check if we have all writers + // in order to avoid unnecessary reverts). + // + // 2) alternative is to compute all child nodes during initialization (might introduce some footprint penalty). + @Override + public void init(final ModifiableWriterRegistryBuilder registry) { + registry.subtreeAdd( + Sets.newHashSet( + TABLES_IID, + IPV4_ROUTES_IID, + IPV4_ROUTES_IID.child(Ipv4Route.class), + IPV4_ROUTE_IID.child(Attributes.class), + IPV4_ROUTE_IID.child(Attributes.class).child(Origin.class), + IPV4_ROUTE_IID.child(Attributes.class).child(LocalPref.class), + IPV4_ROUTE_IID.child(Attributes.class).child(Ipv4NextHop.class), + LABELED_UNICAST_ROUTES_IID, + LABELED_UNICAST_ROUTE_IID, + LABELED_UNICAST_ROUTE_IID.child(Attributes.class), + LABELED_UNICAST_ROUTE_IID.child(Attributes.class).child(Origin.class), + LABELED_UNICAST_ROUTE_IID.child(Attributes.class).child(LocalPref.class), + LABELED_UNICAST_ROUTE_IID.child(Attributes.class).child(Ipv4NextHop.class), + LABELED_UNICAST_ROUTE_IID.child(LabelStack.class) + ), + new BindingBrokerWriter<>(InstanceIdentifier.create(ApplicationRib.class), dataBroker) + ); + } + } +} |