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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 io.fd.honeycomb.translate.util.read.cache.EntityDumpExecutor.NO_PARAMS;
import com.google.common.base.Optional;
import com.google.common.primitives.Longs;
import com.google.common.primitives.UnsignedInts;
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.read.ReadContext;
import io.fd.honeycomb.translate.read.ReadFailedException;
import io.fd.honeycomb.translate.spi.read.Initialized;
import io.fd.honeycomb.translate.spi.read.InitializingListReaderCustomizer;
import io.fd.honeycomb.translate.util.read.cache.DumpCacheManager;
import io.fd.vpp.jvpp.core.dto.PolicerDetails;
import io.fd.vpp.jvpp.core.dto.PolicerDetailsReplyDump;
import io.fd.vpp.jvpp.core.dto.PolicerDump;
import io.fd.vpp.jvpp.core.future.FutureJVppCore;
import java.math.BigInteger;
import java.util.Collections;
import java.util.List;
import java.util.stream.Collectors;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Dscp;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.DscpType;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.MeterActionDrop;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.MeterActionMarkDscp;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.MeterActionTransmit;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.MeterActionType;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.MeterType;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.PolicerRateType;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.PolicerRoundType;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.Policers;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.PolicersStateBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.VppDscpType;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.policer.base.attributes.ConformAction;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.policer.base.attributes.ConformActionBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.policer.base.attributes.ExceedAction;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.policer.base.attributes.ExceedActionBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.policer.base.attributes.ViolateAction;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.policer.base.attributes.ViolateActionBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.policers.state.Policer;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.policers.state.PolicerBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.policers.state.PolicerKey;
import org.opendaylight.yangtools.concepts.Builder;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
final class PolicerCustomizer extends FutureJVppCustomizer
implements InitializingListReaderCustomizer<Policer, PolicerKey, PolicerBuilder>,
JvppReplyConsumer, ByteDataTranslator {
private final DumpCacheManager<PolicerDetailsReplyDump, Void> dumpManager;
PolicerCustomizer(@Nonnull final FutureJVppCore futureJVppCore) {
super(futureJVppCore);
dumpManager = new DumpCacheManager.DumpCacheManagerBuilder<PolicerDetailsReplyDump, Void>()
.withExecutor(
(id, param) -> getReplyForRead(getFutureJVpp().policerDump(new PolicerDump()).toCompletableFuture(),
id))
.acceptOnly(PolicerDetailsReplyDump.class)
.build();
}
@Nonnull
@Override
public List<PolicerKey> getAllIds(@Nonnull final InstanceIdentifier<Policer> id,
@Nonnull final ReadContext ctx) throws ReadFailedException {
final Optional<PolicerDetailsReplyDump> dump = dumpManager.getDump(id, ctx.getModificationCache(), NO_PARAMS);
if (!dump.isPresent() || dump.get().policerDetails.isEmpty()) {
return Collections.emptyList();
}
return dump.get().policerDetails.stream().map(detail -> new PolicerKey(toString(detail.name)))
.collect(Collectors.toList());
}
@Override
public void merge(@Nonnull final Builder<? extends DataObject> builder, @Nonnull final List<Policer> list) {
((PolicersStateBuilder) builder).setPolicer(list);
}
@Nonnull
@Override
public PolicerBuilder getBuilder(@Nonnull final InstanceIdentifier<Policer> id) {
return new PolicerBuilder();
}
@Override
public void readCurrentAttributes(@Nonnull final InstanceIdentifier<Policer> id,
@Nonnull final PolicerBuilder builder,
@Nonnull final ReadContext ctx) throws ReadFailedException {
final Optional<PolicerDetailsReplyDump> dump = dumpManager.getDump(id, ctx.getModificationCache(), NO_PARAMS);
if (!dump.isPresent() || dump.get().policerDetails.isEmpty()) {
return;
}
final PolicerKey key = id.firstKeyOf(Policer.class);
final java.util.Optional<PolicerDetails> result =
dump.get().policerDetails.stream().filter(detail -> key.equals(new PolicerKey(toString(detail.name)))).findFirst();
if (!result.isPresent()) {
return;
}
final PolicerDetails details = result.get();
builder.setName(toString(details.name));
builder.setCir(UnsignedInts.toLong(details.cir));
builder.setEir(UnsignedInts.toLong(details.eir));
// TODO(HC2VPP-117): policer init fails if cb is configured (looks like byte ordering issue on VPP side)
builder.setCb(toUnsignedBigInteger(details.cb));
builder.setEb(toUnsignedBigInteger(details.eb));
builder.setRateType(PolicerRateType.forValue(details.rateType));
builder.setRoundType(PolicerRoundType.forValue(details.roundType));
builder.setType(MeterType.forValue(details.type));
builder.setColorAware(byteToBoolean(details.colorAware));
builder.setConformAction(parseConformAction(details));
builder.setExceedAction(parseExceedAction(details));
builder.setViolateAction(parseViolateAction(details));
// operational only data:
builder.setSingleRate(byteToBoolean(details.singleRate));
builder.setScale(UnsignedInts.toLong(details.scale));
builder.setCirTokensPerPeriod(UnsignedInts.toLong(details.cirTokensPerPeriod));
builder.setPirTokensPerPeriod(UnsignedInts.toLong(details.pirTokensPerPeriod));
builder.setCurrentLimit(UnsignedInts.toLong(details.currentLimit));
builder.setCurrentBucket(UnsignedInts.toLong(details.currentBucket));
builder.setExtendedLimit(UnsignedInts.toLong(details.extendedLimit));
builder.setExtendedBucket(UnsignedInts.toLong(details.extendedBucket));
builder.setLastUpdateTime(toUnsignedBigInteger(details.lastUpdateTime));
}
private BigInteger toUnsignedBigInteger(final long value) {
return new BigInteger(1, Longs.toByteArray(value));
}
private Class<? extends MeterActionType> parseMeterActionType(final byte actionType) {
switch (actionType) {
case 0:
return MeterActionDrop.class;
case 1:
return MeterActionTransmit.class;
case 2:
return MeterActionMarkDscp.class;
default:
throw new IllegalArgumentException("Unsupported meter action type " + actionType);
}
}
private DscpType parseDscp(final byte dscp, final byte conformActionType) {
if (dscp == -1 || conformActionType != 2) {
return null;
}
VppDscpType vppDcspType = VppDscpType.forValue(dscp);
if (vppDcspType != null) {
return new DscpType(vppDcspType);
}
return new DscpType(new Dscp((short) dscp));
}
private ConformAction parseConformAction(final PolicerDetails details) {
ConformActionBuilder action = new ConformActionBuilder();
action.setMeterActionType(parseMeterActionType(details.conformActionType));
action.setDscp(parseDscp(details.conformDscp, details.conformActionType));
return action.build();
}
private ExceedAction parseExceedAction(final PolicerDetails details) {
ExceedActionBuilder action = new ExceedActionBuilder();
action.setMeterActionType(parseMeterActionType(details.exceedActionType));
action.setDscp(parseDscp(details.exceedDscp, details.conformActionType));
return action.build();
}
private ViolateAction parseViolateAction(final PolicerDetails details) {
ViolateActionBuilder action = new ViolateActionBuilder();
action.setMeterActionType(parseMeterActionType(details.violateActionType));
action.setDscp(parseDscp(details.violateDscp, details.conformActionType));
return action.build();
}
@Nonnull
@Override
public Initialized<? extends DataObject> init(@Nonnull final InstanceIdentifier<Policer> id,
@Nonnull final Policer policer,
@Nonnull final ReadContext readContext) {
return Initialized.create(getCfgId(id),
new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.policers.PolicerBuilder(
policer)
.setName(policer.getName())
.build());
}
private static InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.policers.Policer> getCfgId(
final InstanceIdentifier<Policer> id) {
final PolicerKey key = id.firstKeyOf(Policer.class);
return InstanceIdentifier.create(Policers.class).child(
org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.policers.Policer.class,
new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.policers.PolicerKey(
key.getName()));
}
}
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