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/*
* Copyright (c) 2016 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.v3po.translate.v3po.interfacesstate;
import static com.google.common.base.Preconditions.checkState;
import static java.util.Objects.requireNonNull;
import io.fd.honeycomb.v3po.translate.read.ReadContext;
import io.fd.honeycomb.v3po.translate.read.ReadFailedException;
import io.fd.honeycomb.v3po.translate.v3po.util.NamingContext;
import io.fd.honeycomb.v3po.translate.v3po.util.TranslateUtils;
import java.util.Optional;
import java.util.concurrent.CompletableFuture;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.l2.base.attributes.Interconnection;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.l2.base.attributes.interconnection.BridgeBasedBuilder;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.openvpp.jvpp.VppBaseCallException;
import org.openvpp.jvpp.dto.BridgeDomainDetails;
import org.openvpp.jvpp.dto.BridgeDomainDetailsReplyDump;
import org.openvpp.jvpp.dto.BridgeDomainDump;
import org.openvpp.jvpp.dto.BridgeDomainSwIfDetails;
import org.openvpp.jvpp.dto.SwInterfaceDetails;
import org.openvpp.jvpp.future.FutureJVpp;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Utility class providing Interconnection read support.
*/
// FIXME this should be customizer, but it is not possible because Interconnection is not a DataObject
final class InterconnectionReadUtils {
private static final Logger LOG = LoggerFactory.getLogger(InterconnectionReadUtils.class);
private final FutureJVpp futureJvpp;
private final NamingContext interfaceContext;
private final NamingContext bridgeDomainContext;
InterconnectionReadUtils(@Nonnull final FutureJVpp futureJvpp,
@Nonnull final NamingContext interfaceContext,
@Nonnull final NamingContext bridgeDomainContext) {
this.futureJvpp = requireNonNull(futureJvpp, "futureJvpp should not be null");
this.interfaceContext = requireNonNull(interfaceContext, "interfaceContext should not be null");
this.bridgeDomainContext = requireNonNull(bridgeDomainContext, "bridgeDomainContext should not be null");
}
@Nullable
Interconnection readInterconnection(@Nonnull final InstanceIdentifier<?> id, @Nonnull final String ifaceName, @Nonnull final ReadContext ctx)
throws ReadFailedException {
final int ifaceId = interfaceContext.getIndex(ifaceName, ctx.getMappingContext());
final SwInterfaceDetails iface = InterfaceUtils.getVppInterfaceDetails(futureJvpp, id, ifaceName,
ifaceId, ctx.getModificationCache());
LOG.debug("Interface details for interface: {}, details: {}", ifaceName, iface);
final BridgeDomainDetailsReplyDump dumpReply = getDumpReply(id);
final Optional<BridgeDomainSwIfDetails> bdForInterface = getBridgeDomainForInterface(ifaceId, dumpReply);
if (bdForInterface.isPresent()) {
final BridgeDomainSwIfDetails bdSwIfDetails = bdForInterface.get();
final BridgeBasedBuilder bbBuilder = new BridgeBasedBuilder();
bbBuilder.setBridgeDomain(bridgeDomainContext.getName(bdSwIfDetails.bdId, ctx.getMappingContext()));
// Set BVI if the bridgeDomainDetails.bviSwIfIndex == current sw if index
final Optional<BridgeDomainDetails> bridgeDomainForInterface =
getBridgeDomainForInterface(dumpReply, bdForInterface.get().bdId);
// Since we already found an interface assigned to a bridge domain, the details for BD must be present
checkState(bridgeDomainForInterface.isPresent());
if (bridgeDomainForInterface.get().bviSwIfIndex == ifaceId) {
bbBuilder.setBridgedVirtualInterface(true);
} else {
bbBuilder.setBridgedVirtualInterface(false);
}
if (bdSwIfDetails.shg != 0) {
bbBuilder.setSplitHorizonGroup((short) bdSwIfDetails.shg);
}
return bbBuilder.build();
}
// TODO is there a way to check if interconnection is XconnectBased?
return null;
}
private Optional<BridgeDomainSwIfDetails> getBridgeDomainForInterface(final int ifaceId,
final BridgeDomainDetailsReplyDump reply) {
if (null == reply || null == reply.bridgeDomainSwIfDetails || reply.bridgeDomainSwIfDetails.isEmpty()) {
return Optional.empty();
}
// interface can be added to only one BD only
return reply.bridgeDomainSwIfDetails.stream().filter(a -> a.swIfIndex == ifaceId).findFirst();
}
private Optional<BridgeDomainDetails> getBridgeDomainForInterface(final BridgeDomainDetailsReplyDump reply,
int bdId) {
return reply.bridgeDomainDetails.stream().filter(a -> a.bdId == bdId).findFirst();
}
private BridgeDomainDetailsReplyDump getDumpReply(@Nonnull final InstanceIdentifier<?> id) throws ReadFailedException {
try {
// We need to perform full bd dump, because there is no way
// to ask VPP for BD details given interface id/name (TODO add it to vpp.api?)
// TODO cache dump result
final BridgeDomainDump request = new BridgeDomainDump();
request.bdId = -1;
final CompletableFuture<BridgeDomainDetailsReplyDump> bdCompletableFuture =
futureJvpp.bridgeDomainSwIfDump(request).toCompletableFuture();
return TranslateUtils.getReply(bdCompletableFuture);
} catch (VppBaseCallException e) {
throw new ReadFailedException(id,e);
}
}
}
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