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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.lisp.gpe.translate.write;
import io.fd.hc2vpp.common.translate.util.ByteDataTranslator;
import io.fd.hc2vpp.common.translate.util.FutureJVppCustomizer;
import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer;
import io.fd.honeycomb.translate.spi.write.ListWriterCustomizer;
import io.fd.honeycomb.translate.write.WriteContext;
import io.fd.honeycomb.translate.write.WriteFailedException;
import io.fd.vpp.jvpp.core.dto.GpeAddDelIface;
import io.fd.vpp.jvpp.core.future.FutureJVppCore;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.gpe.rev170518._native.forward.paths.tables.NativeForwardPathsTable;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.gpe.rev170518._native.forward.paths.tables.NativeForwardPathsTableKey;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Uses api to create gpe interfaces, which creates fib table as by-product.
* There is currently no other lisp-specific way to define fib table, as native paths expects existing table id
*/
public class NativeForwardPathsTableCustomizer extends FutureJVppCustomizer
implements ListWriterCustomizer<NativeForwardPathsTable, NativeForwardPathsTableKey>, ByteDataTranslator,
JvppReplyConsumer {
private static final Logger LOG = LoggerFactory.getLogger(NativeForwardPathsTableCustomizer.class);
public NativeForwardPathsTableCustomizer(@Nonnull final FutureJVppCore futureJVppCore) {
super(futureJVppCore);
}
@Override
public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<NativeForwardPathsTable> id,
@Nonnull final NativeForwardPathsTable dataAfter,
@Nonnull final WriteContext writeContext)
throws WriteFailedException {
createFibTable(id, dataAfter);
}
@Override
public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<NativeForwardPathsTable> id,
@Nonnull final NativeForwardPathsTable dataBefore,
@Nonnull final NativeForwardPathsTable dataAfter,
@Nonnull final WriteContext writeContext)
throws WriteFailedException {
// not sure if update makes sense, but just in case
deleteFibTable(id);
createFibTable(id, dataAfter);
}
@Override
public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<NativeForwardPathsTable> id,
@Nonnull final NativeForwardPathsTable dataBefore,
@Nonnull final WriteContext writeContext)
throws WriteFailedException {
deleteFibTable(id);
}
private void createFibTable(final InstanceIdentifier<NativeForwardPathsTable> id,
final NativeForwardPathsTable data) throws WriteFailedException {
getReplyForCreate(getFutureJVpp().gpeAddDelIface(getRequest(true, id)).toCompletableFuture(), id, data);
}
private void deleteFibTable(final InstanceIdentifier<NativeForwardPathsTable> id) throws WriteFailedException {
getReplyForDelete(getFutureJVpp().gpeAddDelIface(getRequest(false, id)).toCompletableFuture(), id);
}
/**
* Maps dpTable and vni to tableId,this also allows to dump lisp specific tables by dumping vni's
*/
private GpeAddDelIface getRequest(final boolean add, final InstanceIdentifier<NativeForwardPathsTable> id) {
GpeAddDelIface request = new GpeAddDelIface();
request.isL2 = 0;
// expects reversed order
request.dpTable = tableId(id);
request.vni = request.dpTable; // vni must be unique for every table
request.isAdd = booleanToByte(add);
return request;
}
static int tableId(final InstanceIdentifier<?> id) {
return id.firstKeyOf(NativeForwardPathsTable.class).getTableId().intValue();
}
}
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