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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.hc2vpp.bgp.inet;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import com.sun.istack.internal.Nullable;
import io.fd.hc2vpp.common.translate.util.Ipv4Translator;
import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer;
import io.fd.honeycomb.translate.bgp.RouteWriter;
import io.fd.honeycomb.translate.write.WriteFailedException;
import io.fd.vpp.jvpp.core.dto.IpAddDelRoute;
import io.fd.vpp.jvpp.core.future.FutureJVppCore;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
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.rib.rev130925.BgpRib;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.bgp.rib.Rib;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.bgp.rib.rib.LocRib;
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.CNextHop;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.Ipv4NextHopCase;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
final class Ipv4Writer implements RouteWriter<Ipv4Route>, Ipv4Translator, JvppReplyConsumer, RouteRequestProducer {
private static final Logger LOG = LoggerFactory.getLogger(Ipv4Writer.class);
@SuppressWarnings("unchecked")
private static final InstanceIdentifier<Ipv4Route> ID = InstanceIdentifier.create(BgpRib.class).child(Rib.class)
.child(LocRib.class).child(Tables.class).child((Class) Ipv4Routes.class)
.child(Ipv4Route.class);
private final FutureJVppCore vppApi;
Ipv4Writer(@Nonnull final FutureJVppCore vppApi) {
this.vppApi = checkNotNull(vppApi, "vppApi should not be null");
}
@Override
public void create(@Nonnull final InstanceIdentifier<Ipv4Route> id,
@Nullable final Ipv4Route route)
throws WriteFailedException.CreateFailedException {
final IpAddDelRoute request = request(route, true);
LOG.debug("Translating id={}, route={} to {}", id, route, request);
getReplyForCreate(vppApi.ipAddDelRoute(request).toCompletableFuture(), id, route);
LOG.debug("VPP FIB updated successfully (added id={}).", id);
}
@Override
public void delete(@Nonnull final InstanceIdentifier<Ipv4Route> id,
@Nullable final Ipv4Route route)
throws WriteFailedException.DeleteFailedException {
LOG.debug("Removing id={}, route={}", id, route);
getReplyForDelete(vppApi.ipAddDelRoute(request(route, false)).toCompletableFuture(), id);
LOG.debug("VPP FIB updated successfully (removed id={}).", id);
}
@Override
public void update(@Nonnull final InstanceIdentifier<Ipv4Route> id,
@Nullable final Ipv4Route routeBefore,
@Nullable final Ipv4Route routeAfter)
throws WriteFailedException.UpdateFailedException {
throw new WriteFailedException.UpdateFailedException(id, routeBefore, routeAfter,
new UnsupportedOperationException("Operation not supported"));
}
private IpAddDelRoute request(final Ipv4Route route, boolean isAdd) {
// TODO(HC2VPP-177): add support for request.nextHopWeight for multiple path case
final CNextHop cNextHop = route.getAttributes().getCNextHop();
checkArgument(cNextHop instanceof Ipv4NextHopCase, "only ipv4 next hop is supported, but was %s (route = %s)",
cNextHop, route);
final IpAddDelRoute request = ipAddDelRoute(isAdd);
final Ipv4Address nextHop = ((Ipv4NextHopCase) cNextHop).getIpv4NextHop().getGlobal();
request.nextHopAddress = ipv4AddressNoZoneToArray(nextHop.getValue());
final Ipv4Prefix destinationAddress = route.getPrefix();
request.dstAddress = ipv4AddressPrefixToArray(destinationAddress);
request.dstAddressLength = extractPrefix(destinationAddress);
return request;
}
@Nonnull
@Override
public InstanceIdentifier<Ipv4Route> getManagedDataObjectType() {
return ID;
}
}
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