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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.ImmutableList;
import com.google.inject.Inject;
import io.fd.honeycomb.binding.init.ProviderTrait;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import org.opendaylight.controller.md.sal.binding.impl.BindingToNormalizedNodeCodec;
import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
import org.opendaylight.controller.md.sal.dom.broker.impl.PingPongDataBroker;
import org.opendaylight.controller.sal.core.api.model.SchemaService;
import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonService;
import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider;
import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceRegistration;
import org.opendaylight.protocol.bgp.mode.api.PathSelectionMode;
import org.opendaylight.protocol.bgp.openconfig.spi.BGPOpenConfigMappingService;
import org.opendaylight.protocol.bgp.rib.impl.RIBImpl;
import org.opendaylight.protocol.bgp.rib.impl.spi.BGPDispatcher;
import org.opendaylight.protocol.bgp.rib.impl.spi.RIB;
import org.opendaylight.protocol.bgp.rib.spi.RIBExtensionConsumerContext;
import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.multiprotocol.rev151009.bgp.common.afi.safi.list.AfiSafi;
import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.multiprotocol.rev151009.bgp.common.afi.safi.list.AfiSafiBuilder;
import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.types.rev151009.IPV4LABELLEDUNICAST;
import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.types.rev151009.IPV4UNICAST;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.AsNumber;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev160614.AfiSafi2;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev160614.AfiSafi2Builder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.RibId;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.TablesKey;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.BgpId;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.ClusterIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
final class BgpRIBProvider extends ProviderTrait<RIB> {
private static final Logger LOG = LoggerFactory.getLogger(BgpRIBProvider.class);
@Inject
private BgpConfiguration cfg;
@Inject
private RIBExtensionConsumerContext extensions;
@Inject
private BGPDispatcher dispatcher;
@Inject
private BindingToNormalizedNodeCodec codec;
@Inject
private DOMDataBroker domBroker;
@Inject
private BGPOpenConfigMappingService mappingService;
@Inject
private SchemaService schemaService;
@Override
protected RIB create() {
final AsNumber asNumber = new AsNumber(cfg.bgpAsNumber.get().longValue());
final Ipv4Address routerId = new Ipv4Address(cfg.bgpBindingAddress.get());
final ClusterIdentifier clusterId = new ClusterIdentifier(routerId);
LOG.debug("Creating BGP RIB: routerId={}, asNumber={}", routerId, asNumber);
// TODO configure other BGP Multiprotocol extensions:
final List<AfiSafi> afiSafi = ImmutableList.of(
new AfiSafiBuilder().setAfiSafiName(IPV4UNICAST.class)
.addAugmentation(AfiSafi2.class,
new AfiSafi2Builder().setReceive(cfg.isBgpMultiplePathsEnabled())
.setSendMax(cfg.bgpSendMaxMaths.get().shortValue()).build())
.build(),
new AfiSafiBuilder().setAfiSafiName(IPV4LABELLEDUNICAST.class)
.addAugmentation(AfiSafi2.class,
new AfiSafi2Builder().setReceive(cfg.isBgpMultiplePathsEnabled())
.setSendMax(cfg.bgpSendMaxMaths.get().shortValue()).build())
.build()
);
final Map<TablesKey, PathSelectionMode> pathSelectionModes = mappingService.toPathSelectionMode(afiSafi)
.entrySet().stream().collect(Collectors.toMap(entry ->
new TablesKey(entry.getKey().getAfi(), entry.getKey().getSafi()), Map.Entry::getValue));
// based on RIBImpl.createRib
final RIBImpl rib =
new RIBImpl(new NoopClusterSingletonServiceProvider(), new RibId(cfg.bgpProtocolInstanceName.get()),
asNumber, new BgpId(routerId), clusterId, extensions, dispatcher, codec,
new PingPongDataBroker(domBroker), mappingService.toTableTypes(afiSafi), pathSelectionModes,
extensions.getClassLoadingStrategy(), null);
// required for proper RIB's CodecRegistry initialization (based on RIBImpl.start)
schemaService.registerSchemaContextListener(rib);
LOG.debug("BGP RIB created successfully: {}", rib);
return rib;
}
/**
* HC does not support clustering, but BGP uses {@link ClusterSingletonServiceProvider}
* to initialize {@link RIBImpl}. Therefore we provide this dummy implementation.
*/
private static final class NoopClusterSingletonServiceProvider implements ClusterSingletonServiceProvider {
private static final Logger LOG = LoggerFactory.getLogger(NoopClusterSingletonServiceProvider.class);
private static final ClusterSingletonServiceRegistration REGISTRATION =
() -> LOG.debug("Closing ClusterSingletonServiceRegistration");
@Override
public ClusterSingletonServiceRegistration registerClusterSingletonService(
final ClusterSingletonService clusterSingletonService) {
clusterSingletonService.instantiateServiceInstance();
return REGISTRATION;
}
@Override
public void close() throws Exception {
LOG.debug("Closing NoopClusterSingletonServiceProvider");
}
}
}
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