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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.lisp.translate.read;
import static io.fd.honeycomb.translate.util.read.cache.EntityDumpExecutor.NO_PARAMS;
import com.google.common.base.Optional;
import io.fd.honeycomb.translate.read.ReadContext;
import io.fd.honeycomb.translate.read.ReadFailedException;
import io.fd.honeycomb.translate.spi.read.ListReaderCustomizer;
import io.fd.honeycomb.translate.util.RWUtils;
import io.fd.honeycomb.translate.util.read.cache.DumpCacheManager;
import io.fd.honeycomb.translate.vpp.util.AddressTranslator;
import io.fd.honeycomb.translate.vpp.util.FutureJVppCustomizer;
import io.fd.honeycomb.translate.vpp.util.JvppReplyConsumer;
import io.fd.vpp.jvpp.core.dto.LispMapResolverDetails;
import io.fd.vpp.jvpp.core.dto.LispMapResolverDetailsReplyDump;
import io.fd.vpp.jvpp.core.dto.LispMapResolverDump;
import io.fd.vpp.jvpp.core.future.FutureJVppCore;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.stream.Collectors;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev161214.map.resolvers.grouping.MapResolversBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev161214.map.resolvers.grouping.map.resolvers.MapResolver;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev161214.map.resolvers.grouping.map.resolvers.MapResolverBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev161214.map.resolvers.grouping.map.resolvers.MapResolverKey;
import org.opendaylight.yangtools.concepts.Builder;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class MapResolverCustomizer extends FutureJVppCustomizer
implements ListReaderCustomizer<MapResolver, MapResolverKey, MapResolverBuilder>, AddressTranslator,
JvppReplyConsumer {
private static final Logger LOG = LoggerFactory.getLogger(MapResolverCustomizer.class);
private final DumpCacheManager<LispMapResolverDetailsReplyDump, Void> dumpManager;
public MapResolverCustomizer(FutureJVppCore futureJvpp) {
super(futureJvpp);
this.dumpManager =
new DumpCacheManager.DumpCacheManagerBuilder<LispMapResolverDetailsReplyDump, Void>()
.withExecutor((identifier, params) -> getReplyForRead(
futureJvpp.lispMapResolverDump(new LispMapResolverDump()).toCompletableFuture(),
identifier))
.build();
}
@Override
public MapResolverBuilder getBuilder(InstanceIdentifier<MapResolver> id) {
return new MapResolverBuilder();
}
@Override
public void readCurrentAttributes(InstanceIdentifier<MapResolver> id, MapResolverBuilder builder, ReadContext ctx)
throws ReadFailedException {
LOG.debug("Reading attributes...");
final Optional<LispMapResolverDetailsReplyDump> dumpOptional =
dumpManager.getDump(id, ctx.getModificationCache(), NO_PARAMS);
if (!dumpOptional.isPresent() || dumpOptional.get().lispMapResolverDetails.isEmpty()) {
LOG.warn("No data dumped");
return;
}
final MapResolverKey key = id.firstKeyOf(MapResolver.class);
final LispMapResolverDetails mapResolverDetails =
dumpOptional.get().lispMapResolverDetails.stream()
.filter(a -> addressesEqual(key.getIpAddress(),
arrayToIpAddressReversed(byteToBoolean(a.isIpv6), a.ipAddress)))
.collect(RWUtils.singleItemCollector());
builder.setKey(key);
builder.setIpAddress(
arrayToIpAddress(byteToBoolean(mapResolverDetails.isIpv6), mapResolverDetails.ipAddress));
}
// safest way to compare addresses - prevents returning false while using different types from hierarchy
// Ex. Key for MapResolver contains Ipv4Address as value but we translate addresses from binary data to Ipv4AddressNoZone
private boolean addressesEqual(final IpAddress left, final IpAddress right) {
return Arrays.equals(left.getValue(), right.getValue());
}
@Override
public List<MapResolverKey> getAllIds(InstanceIdentifier<MapResolver> id, ReadContext context)
throws ReadFailedException {
LOG.debug("Dumping MapResolver...");
final Optional<LispMapResolverDetailsReplyDump> dumpOptional =
dumpManager.getDump(id, context.getModificationCache(), NO_PARAMS);
if (!dumpOptional.isPresent() || dumpOptional.get().lispMapResolverDetails.isEmpty()) {
return Collections.emptyList();
}
return dumpOptional.get().lispMapResolverDetails.stream()
.map(resolver -> new MapResolverKey(
arrayToIpAddressReversed(byteToBoolean(resolver.isIpv6), resolver.ipAddress)))
.collect(Collectors.toList());
}
@Override
public void merge(Builder<? extends DataObject> builder, List<MapResolver> readData) {
((MapResolversBuilder) builder).setMapResolver(readData);
}
}
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