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/*
* Copyright (c) 2016 Intel 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.vppnsh.impl.config;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Preconditions.checkState;
import io.fd.honeycomb.translate.MappingContext;
import io.fd.honeycomb.translate.spi.write.ListWriterCustomizer;
import io.fd.honeycomb.translate.vpp.util.ByteDataTranslator;
import io.fd.honeycomb.translate.vpp.util.JvppReplyConsumer;
import io.fd.honeycomb.translate.vpp.util.NamingContext;
import io.fd.honeycomb.translate.write.WriteContext;
import io.fd.honeycomb.translate.write.WriteFailedException;
import io.fd.honeycomb.vppnsh.impl.util.FutureJVppNshCustomizer;
import io.fd.vpp.jvpp.nsh.dto.NshAddDelMap;
import io.fd.vpp.jvpp.nsh.dto.NshAddDelMapReply;
import io.fd.vpp.jvpp.nsh.future.FutureJVppNsh;
import java.util.concurrent.CompletionStage;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VxlanGpe;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.maps.NshMap;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.maps.NshMapKey;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Writer customizer responsible for NshMap create/delete.
*/
public class NshMapWriterCustomizer extends FutureJVppNshCustomizer
implements ListWriterCustomizer<NshMap, NshMapKey>, ByteDataTranslator, JvppReplyConsumer {
private static final Logger LOG = LoggerFactory.getLogger(NshMapWriterCustomizer.class);
private final NamingContext nshMapContext;
private final NamingContext interfaceContext;
public NshMapWriterCustomizer(@Nonnull final FutureJVppNsh futureJVppNsh,
@Nonnull final NamingContext nshMapContext,
@Nonnull final NamingContext interfaceContext) {
super(futureJVppNsh);
this.nshMapContext = checkNotNull(nshMapContext, "nshMapContext should not be null");
this.interfaceContext = checkNotNull(interfaceContext, "interfaceContext should not be null");
}
@Override
public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<NshMap> id,
@Nonnull final NshMap dataAfter, @Nonnull final WriteContext writeContext)
throws WriteFailedException {
LOG.debug("Creating nsh map: iid={} dataAfter={}", id, dataAfter);
final int newMapIndex =
nshAddDelMap(true, id, dataAfter, ~0 /* value not present */, writeContext.getMappingContext());
// Add nsh map name <-> vpp index mapping to the naming context:
nshMapContext.addName(newMapIndex, dataAfter.getName(), writeContext.getMappingContext());
LOG.debug("Successfully created nsh map(id={]): iid={} dataAfter={}", newMapIndex, id, dataAfter);
}
@Override
public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<NshMap> id,
@Nonnull final NshMap dataBefore, @Nonnull final NshMap dataAfter,
@Nonnull final WriteContext writeContext) throws WriteFailedException {
throw new UnsupportedOperationException("Nsh map update is not supported");
}
@Override
public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<NshMap> id,
@Nonnull final NshMap dataBefore,
@Nonnull final WriteContext writeContext) throws WriteFailedException {
LOG.debug("Removing nsh map: iid={} dataBefore={}", id, dataBefore);
final String mapName = dataBefore.getName();
checkState(nshMapContext.containsIndex(mapName, writeContext.getMappingContext()),
"Removing nsh map {}, but index could not be found in the nsh map context", mapName);
final int mapIndex = nshMapContext.getIndex(mapName, writeContext.getMappingContext());
nshAddDelMap(false, id, dataBefore, mapIndex, writeContext.getMappingContext());
// Remove deleted interface from interface context:
nshMapContext.removeName(dataBefore.getName(), writeContext.getMappingContext());
LOG.debug("Successfully removed nsh map(id={]): iid={} dataAfter={}", mapIndex, id, dataBefore);
}
private int nshAddDelMap(final boolean isAdd, @Nonnull final InstanceIdentifier<NshMap> id,
@Nonnull final NshMap map, final int mapId, final MappingContext ctx)
throws WriteFailedException {
final CompletionStage<NshAddDelMapReply> createNshMapReplyCompletionStage =
getFutureJVppNsh().nshAddDelMap(getNshAddDelMapRequest(isAdd, mapId, map, ctx));
final NshAddDelMapReply reply = getReplyForWrite(createNshMapReplyCompletionStage.toCompletableFuture(), id);
return reply.mapIndex;
}
private NshAddDelMap getNshAddDelMapRequest(final boolean isAdd, final int mapIndex,
@Nonnull final NshMap map,
@Nonnull final MappingContext ctx) {
final NshAddDelMap request = new NshAddDelMap();
request.isAdd = booleanToByte(isAdd);
request.nspNsi = (map.getNsp().intValue() << 8) | map.getNsi();
request.mappedNspNsi = (map.getMappedNsp().intValue() << 8) | map.getMappedNsi();
if (map.getEncapType() == VxlanGpe.class) {
request.nextNode = 2;
}
checkState(interfaceContext.containsIndex(map.getEncapIfName(), ctx),
"Mapping does not contains mapping for provider interface Name ".concat(map.getEncapIfName()));
request.swIfIndex = interfaceContext.getIndex(map.getEncapIfName(), ctx);
return request;
}
}
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