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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
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+++ b/infra/northbound/bgp/src/main/java/io/fd/honeycomb/infra/bgp/BgpWriterFactoryProvider.java
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+/*
+ * 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)
+ );
+ }
+ }
+}