infra/northbound/bgp/src/main/java/io/fd/honeycomb/infra/bgp/ApplicationRibWriterFactory.java

   1 /*
   2  * Copyright (c) 2017 Cisco and/or its affiliates.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at:
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package io.fd.honeycomb.infra.bgp;
  18
  19 import com.google.common.collect.ImmutableSet;
  20 import com.google.inject.Inject;
  21 import com.google.inject.name.Named;
  22 import io.fd.honeycomb.translate.util.write.BindingBrokerWriter;
  23 import io.fd.honeycomb.translate.write.WriterFactory;
  24 import io.fd.honeycomb.translate.write.registry.ModifiableWriterRegistryBuilder;
  25 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.ApplicationRib;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.Tables;
  28 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  29
  30 /**
  31  * {@link WriterFactory} for BGP Application RIB write integration with HC writer registry.
  32  * Uses BindingBrokerWriter to write routes via dedicated broker that, unlike
  33  * {@link io.fd.honeycomb.data.impl.DataBroker DataBroker}, supports tx chains and DOMDataChangeListener registration
  34  * extensively used by ODL's bgp.
  35  * <p>
  36  * As a bonus BGP routes persisted and available for read via RESTCONF/NETCONF.
  37  */
  38 final class ApplicationRibWriterFactory implements WriterFactory {
  39
  40     @Inject
  41     @Named(BgpModule.HONEYCOMB_BGP)
  42     private DataBroker dataBroker;
  43
  44     private static final InstanceIdentifier<ApplicationRib> AR_IID =
  45             InstanceIdentifier.create(ApplicationRib.class);
  46     private static final InstanceIdentifier<Tables> TABLES_IID = AR_IID.child(Tables.class);
  47
  48     @Override
  49     public void init(final ModifiableWriterRegistryBuilder registry) {
  50         registry.subtreeAdd(ImmutableSet.of(TABLES_IID), new BindingBrokerWriter<>(InstanceIdentifier.create(ApplicationRib.class), dataBroker)
  51         );
  52     }
  53 }