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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.policer.read;
import static com.google.common.base.Preconditions.checkNotNull;
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.hc2vpp.common.translate.util.NamingContext;
import io.fd.hc2vpp.vpp.classifier.context.VppClassifierContextManager;
import io.fd.honeycomb.translate.ModificationCache;
import io.fd.honeycomb.translate.read.ReadContext;
import io.fd.honeycomb.translate.read.ReadFailedException;
import io.fd.honeycomb.translate.spi.read.ReaderCustomizer;
import io.fd.honeycomb.translate.util.read.cache.DumpCacheManager;
import io.fd.honeycomb.translate.util.read.cache.EntityDumpExecutor;
import io.fd.vpp.jvpp.core.dto.PolicerClassifyDetailsReplyDump;
import io.fd.vpp.jvpp.core.dto.PolicerClassifyDump;
import io.fd.vpp.jvpp.core.future.FutureJVppCore;
import java.util.Optional;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang._interface.policer.rev170315.PolicerInterfaceStateAugmentationBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang._interface.policer.rev170315._interface.policer.attributes.Policer;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang._interface.policer.rev170315._interface.policer.attributes.PolicerBuilder;
import org.opendaylight.yangtools.concepts.Builder;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
final class InterfacePolicerCustomizer extends FutureJVppCustomizer
implements ReaderCustomizer<Policer, PolicerBuilder>,
JvppReplyConsumer, ByteDataTranslator {
private static final byte TABLE_IP4 = 0;
private static final byte TABLE_IP6 = 1;
private static final byte TABLE_L2 = 2;
private final DumpCacheManager<PolicerClassifyDetailsReplyDump, Byte> dumpManager;
private final NamingContext interfaceContext;
private final VppClassifierContextManager classifyTableContext;
InterfacePolicerCustomizer(@Nonnull final FutureJVppCore futureJVppCore,
@Nonnull final NamingContext interfaceContext,
@Nonnull final VppClassifierContextManager classifyTableContext) {
super(futureJVppCore);
this.interfaceContext = checkNotNull(interfaceContext, "interfaceContext should not be null");
this.classifyTableContext = checkNotNull(classifyTableContext, "classifyTableContext should not be null");
dumpManager = new DumpCacheManager.DumpCacheManagerBuilder<PolicerClassifyDetailsReplyDump, Byte>()
.withExecutor(executor())
.acceptOnly(PolicerClassifyDetailsReplyDump.class)
.build();
}
private EntityDumpExecutor<PolicerClassifyDetailsReplyDump, Byte> executor() {
return (id, type) -> {
PolicerClassifyDump request = new PolicerClassifyDump();
request.type = type;
return getReplyForRead(getFutureJVpp().policerClassifyDump(request).toCompletableFuture(), id);
};
}
@Nonnull
@Override
public PolicerBuilder getBuilder(@Nonnull final InstanceIdentifier<Policer> instanceIdentifier) {
return new PolicerBuilder();
}
@Override
public void readCurrentAttributes(@Nonnull final InstanceIdentifier<Policer> id,
@Nonnull final PolicerBuilder builder,
@Nonnull final ReadContext ctx)
throws ReadFailedException {
final String ifcName = id.firstKeyOf(Interface.class).getName();
final int ifcIndex = interfaceContext.getIndex(ifcName, ctx.getMappingContext());
// FIXME: only first dump will result in jvpp call, so either we improve
// DumpCacheManager(HONEYCOMB-348) or we need to do it directly (probably without caching):
final Optional<Integer> ip4 = readTableIndex(id, ifcIndex, TABLE_IP4, ctx.getModificationCache());
if (ip4.isPresent()) {
builder.setIp4Table(classifyTableContext.getTableName(ip4.get(), ctx.getMappingContext()));
}
final Optional<Integer> ip6 = readTableIndex(id, ifcIndex, TABLE_IP6, ctx.getModificationCache());
if (ip6.isPresent()) {
builder.setIp6Table(classifyTableContext.getTableName(ip6.get(), ctx.getMappingContext()));
}
final Optional<Integer> l2 = readTableIndex(id, ifcIndex, TABLE_L2, ctx.getModificationCache());
if (l2.isPresent()) {
builder.setL2Table(classifyTableContext.getTableName(l2.get(), ctx.getMappingContext()));
}
}
private Optional<Integer> readTableIndex(@Nonnull final InstanceIdentifier<Policer> id, final int ifcIndex,
final byte type,
final ModificationCache cache) throws ReadFailedException {
final com.google.common.base.Optional<PolicerClassifyDetailsReplyDump> dump =
dumpManager.getDump(id, cache, type);
if (!dump.isPresent() || dump.get().policerClassifyDetails.isEmpty()) {
return Optional.empty();
}
return dump.get().policerClassifyDetails.stream().filter(detail -> detail.swIfIndex == ifcIndex).findFirst()
.map(details -> details.tableIndex);
}
@Override
public void merge(@Nonnull final Builder<? extends DataObject> builder, @Nonnull final Policer policer) {
((PolicerInterfaceStateAugmentationBuilder) builder).setPolicer(policer);
}
}
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