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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.write;
import static com.google.common.base.Preconditions.checkArgument;
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.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.PolicerAddDel;
import io.fd.vpp.jvpp.core.dto.PolicerAddDelReply;
import io.fd.vpp.jvpp.core.future.FutureJVppCore;
import java.nio.charset.StandardCharsets;
import javax.annotation.Nonnull;
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.MeterActionParams;
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.policer.base.attributes.ConformAction;
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.ViolateAction;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.policers.Policer;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.policer.rev170315.policers.PolicerKey;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class PolicerCustomizer extends FutureJVppCustomizer implements ListWriterCustomizer<Policer, PolicerKey>,
JvppReplyConsumer, ByteDataTranslator {
private static final Logger LOG = LoggerFactory.getLogger(PolicerCustomizer.class);
private final NamingContext policerContext;
public PolicerCustomizer(@Nonnull final FutureJVppCore futureJVppCore, @Nonnull final NamingContext policerContext) {
super(futureJVppCore);
this.policerContext = checkNotNull(policerContext, "policerContext should not be null");
}
@Override
public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<Policer> id, @Nonnull final Policer dataAfter,
@Nonnull final WriteContext ctx) throws WriteFailedException {
LOG.debug("Writing Policer {} dataAfter={}", id, dataAfter);
final int policerIndex = policerAddDel(id, dataAfter, true);
policerContext.addName(policerIndex, dataAfter.getName(), ctx.getMappingContext());
}
@Override
public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<Policer> id,
@Nonnull final Policer dataBefore,
@Nonnull final Policer dataAfter, @Nonnull final WriteContext ctx)
throws WriteFailedException {
LOG.debug("Updating Policer {} dataBefore={} dataAfter={}", id, dataBefore, dataAfter);
policerAddDel(id, dataAfter, true);
}
@Override
public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<Policer> id,
@Nonnull final Policer dataBefore,
@Nonnull final WriteContext ctx)
throws WriteFailedException {
LOG.debug("Removing Policer {} dataBefore={}", id, dataBefore);
policerAddDel(id, dataBefore, false);
policerContext.removeName(dataBefore.getName(), ctx.getMappingContext());
}
private int policerAddDel(final InstanceIdentifier<Policer> id, final Policer policer, final boolean isAdd)
throws WriteFailedException {
final PolicerAddDel request = new PolicerAddDel();
request.isAdd = booleanToByte(isAdd);
request.name = policer.getName().getBytes(StandardCharsets.US_ASCII);
// policer_add_del expects host order unlike most of the other VPP APIs
// jvpp by default converts ordering to network order, so we need additional reverse
if (policer.getCir() != null) {
request.cir = Integer.reverseBytes(policer.getCir().intValue());
}
if (policer.getEir() != null) {
request.eir = Integer.reverseBytes(policer.getEir().intValue());
}
if (policer.getCb() != null) {
request.cb = Long.reverseBytes(policer.getCb().longValue());
}
if (policer.getEb() != null) {
request.eb = Long.reverseBytes(policer.getEb().longValue());
}
if (policer.getRateType() != null) {
request.rateType = (byte) policer.getRateType().getIntValue();
}
if (policer.getRoundType() != null) {
request.roundType = (byte) policer.getRoundType().getIntValue();
}
if (policer.getType() != null) {
request.type = (byte) policer.getType().getIntValue();
}
request.colorAware = booleanToByte(policer.isColorAware());
final ConformAction conformAction = policer.getConformAction();
if (conformAction != null) {
request.conformActionType = parseActiontype(conformAction.getMeterActionType());
request.conformDscp = parseDscp(conformAction);
}
final ExceedAction exceedAction = policer.getExceedAction();
if (exceedAction != null) {
request.exceedActionType = parseActiontype(exceedAction.getMeterActionType());
request.exceedDscp = parseDscp(exceedAction);
}
final ViolateAction violateAction = policer.getViolateAction();
if (violateAction != null) {
request.violateActionType = parseActiontype(violateAction.getMeterActionType());
request.violateDscp = parseDscp(violateAction);
}
LOG.debug("Policer config change id={} request={}", id, request);
final PolicerAddDelReply reply =
getReplyForWrite(getFutureJVpp().policerAddDel(request).toCompletableFuture(), id);
return reply.policerIndex;
}
private byte parseDscp(@Nonnull MeterActionParams actionParams) {
final DscpType dscp = actionParams.getDscp();
if (dscp == null) {
return 0;
}
final Class<? extends MeterActionType> meterActionType = actionParams.getMeterActionType();
checkArgument(MeterActionMarkDscp.class == meterActionType,
"dcsp is supported only for meter-action-mark-dscp, but %s defined", meterActionType);
if (dscp.getVppDscpType() != null) {
return (byte) dscp.getVppDscpType().getIntValue();
}
if (dscp.getDscp() != null) {
return dscp.getDscp().getValue().byteValue();
}
return 0;
}
private byte parseActiontype(@Nonnull final Class<? extends MeterActionType> meterActionType) {
if (MeterActionDrop.class == meterActionType) {
return 0;
} else if (MeterActionTransmit.class == meterActionType) {
return 1;
} else if (MeterActionMarkDscp.class == meterActionType) {
return 2;
} else {
throw new IllegalArgumentException("Unsupported meter action type " + meterActionType);
}
}
}
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