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/*
* Copyright (c) 2018 Bell Canada, Pantheon Technologies 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.fib.management.services;
import static io.fd.honeycomb.translate.util.read.cache.EntityDumpExecutor.NO_PARAMS;
import io.fd.hc2vpp.common.translate.util.FutureJVppCustomizer;
import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer;
import io.fd.hc2vpp.fib.management.FibManagementIIds;
import io.fd.hc2vpp.fib.management.request.FibTableRequest;
import io.fd.honeycomb.translate.ModificationCache;
import io.fd.honeycomb.translate.read.ReadFailedException;
import io.fd.honeycomb.translate.util.read.cache.DumpCacheManager;
import io.fd.honeycomb.translate.write.WriteFailedException;
import io.fd.vpp.jvpp.core.dto.Ip6FibDetailsReplyDump;
import io.fd.vpp.jvpp.core.dto.Ip6FibDump;
import io.fd.vpp.jvpp.core.dto.IpFibDetailsReplyDump;
import io.fd.vpp.jvpp.core.dto.IpFibDump;
import io.fd.vpp.jvpp.core.future.FutureJVppCore;
import java.util.Collections;
import java.util.stream.Stream;
import javax.annotation.Nonnegative;
import javax.annotation.Nonnull;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
// Todo HC2VPP-317: FibTableService was created as a temporary workaround to write Fib tables in VPP.
// We need to implement proper support for Fib table management.
public class FibTableServiceImpl extends FutureJVppCustomizer implements FibTableService, JvppReplyConsumer {
private static final Logger LOG = LoggerFactory.getLogger(FibTableServiceImpl.class);
private final DumpCacheManager<IpFibDetailsReplyDump, Void> v4DumpManager;
private final DumpCacheManager<Ip6FibDetailsReplyDump, Void> v6DumpManager;
public FibTableServiceImpl(@Nonnull FutureJVppCore futureJVppCore) {
super(futureJVppCore);
v4DumpManager = new DumpCacheManager.DumpCacheManagerBuilder<IpFibDetailsReplyDump, Void>()
.acceptOnly(IpFibDetailsReplyDump.class)
.withExecutor((identifier, params) -> getReplyForRead(
futureJVppCore.ipFibDump(new IpFibDump()).toCompletableFuture(), identifier))
.build();
v6DumpManager = new DumpCacheManager.DumpCacheManagerBuilder<Ip6FibDetailsReplyDump, Void>()
.acceptOnly(Ip6FibDetailsReplyDump.class)
.withExecutor((identifier, params) -> getReplyForRead(
futureJVppCore.ip6FibDump(new Ip6FibDump()).toCompletableFuture(), identifier))
.build();
}
@Override
public void write(InstanceIdentifier<?> identifier, @Nonnegative int tableId, @Nonnull String tableName,
boolean isIpv6) throws WriteFailedException {
// Register FIB table in VPP
FibTableRequest fibTableRequest = new FibTableRequest(getFutureJVpp());
fibTableRequest.setFibName(tableName);
fibTableRequest.setIpv6(isIpv6);
fibTableRequest.setFibTable(tableId);
fibTableRequest.checkValid();
try {
fibTableRequest.write(identifier);
LOG.debug("Fib table written successfully. table-name: {}, table-id: {}, request: {}", tableName, tableId,
fibTableRequest);
} catch (WriteFailedException e) {
LOG.warn("Fib table write failed. request: {}", fibTableRequest);
throw new WriteFailedException(identifier, "Failed to write FIB table to VPP.", e);
}
}
@Override
public void checkTableExist(@Nonnegative final int index, @Nonnull final ModificationCache cache)
throws ReadFailedException, FibTableService.FibTableDoesNotExistException {
if (Stream.concat(dumpV4FibTableIdsStream(cache), dumpV6FibTableIdsStream(cache))
.noneMatch(id -> id == index)) {
throw new FibTableService.FibTableDoesNotExistException(index);
}
}
private Stream<Integer> dumpV6FibTableIdsStream(final ModificationCache cache) throws ReadFailedException {
return v6DumpManager.getDump(FibManagementIIds.FIB_MNGMNT, cache, NO_PARAMS)
.toJavaUtil()
.map(ip6FibDetailsReplyDump -> ip6FibDetailsReplyDump.ip6FibDetails)
.orElse(Collections.emptyList())
.stream()
.map(ip6FibDetails -> ip6FibDetails.tableId);
}
private Stream<Integer> dumpV4FibTableIdsStream(final ModificationCache cache) throws ReadFailedException {
return v4DumpManager.getDump(FibManagementIIds.FIB_MNGMNT, cache, NO_PARAMS)
.toJavaUtil()
.map(ipFibDetailsReplyDump -> ipFibDetailsReplyDump.ipFibDetails)
.orElse(Collections.emptyList())
.stream()
.map(ipFibDetails -> ipFibDetails.tableId);
}
}
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