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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.v3po.translate.v3po.interfaces;
import static io.fd.honeycomb.v3po.translate.v3po.utils.V3poUtils.booleanToByte;
import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import io.fd.honeycomb.v3po.translate.v3po.util.AbstractInterfaceTypeCustomizer;
import io.fd.honeycomb.v3po.translate.v3po.util.NamingContext;
import io.fd.honeycomb.v3po.translate.v3po.util.VppApiInvocationException;
import io.fd.honeycomb.v3po.translate.v3po.utils.V3poUtils;
import io.fd.honeycomb.v3po.translate.write.WriteContext;
import io.fd.honeycomb.v3po.translate.write.WriteFailedException;
import java.util.concurrent.CompletionStage;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.InterfaceType;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VlanTag;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VlanType;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VppInterfaceAugmentation;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces._interface.SubInterface;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.openvpp.jvpp.dto.CreateSubif;
import org.openvpp.jvpp.dto.CreateSubifReply;
import org.openvpp.jvpp.future.FutureJVpp;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Writer Customizer responsible for sub interface creation.<br>
* Sends {@code create_subif} message to VPP.<br>
* Equivalent of invoking {@code vppclt create subif} command.
*/
public class SubInterfaceCustomizer extends AbstractInterfaceTypeCustomizer<SubInterface> {
private static final Logger LOG = LoggerFactory.getLogger(SubInterfaceCustomizer.class);
private final NamingContext interfaceContext;
public SubInterfaceCustomizer(@Nonnull final FutureJVpp futureJvpp, @Nonnull final NamingContext interfaceContext) {
super(futureJvpp);
this.interfaceContext = Preconditions.checkNotNull(interfaceContext, "interfaceContext should not be null");
}
@Nonnull
@Override
public Optional<SubInterface> extract(@Nonnull final InstanceIdentifier<SubInterface> currentId,
@Nonnull final DataObject parentData) {
return Optional.fromNullable(((VppInterfaceAugmentation) parentData).getSubInterface());
}
@Override
protected Class<? extends InterfaceType> getExpectedInterfaceType() {
return org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.SubInterface.class;
}
@Override
public void writeInterface(@Nonnull final InstanceIdentifier<SubInterface> id,
@Nonnull final SubInterface dataAfter, @Nonnull final WriteContext writeContext)
throws WriteFailedException.CreateFailedException {
try {
createSubInterface(id.firstKeyOf(Interface.class).getName(), dataAfter);
} catch (VppApiInvocationException e) {
throw new WriteFailedException.CreateFailedException(id, dataAfter, e);
}
}
private void createSubInterface(final String swIfName, final SubInterface subInterface) throws VppApiInvocationException {
final String superIfName = subInterface.getSuperInterface();
final int swIfIndex = interfaceContext.getIndex(superIfName);
LOG.debug("Creating sub interface of {}(id={}): name={}, subInterface={}", superIfName, swIfIndex, swIfName, subInterface);
final CompletionStage<CreateSubifReply> createSubifReplyCompletionStage =
getFutureJVpp().createSubif(getCreateSubifRequest(subInterface, swIfIndex));
final CreateSubifReply reply =
V3poUtils.getReply(createSubifReplyCompletionStage.toCompletableFuture());
if (reply.retval < 0) {
LOG.debug("Failed to create sub interface for: {}, subInterface: {}", swIfName, subInterface);
throw new VppApiInvocationException("createSubif", reply.context, reply.retval);
} else {
LOG.debug("Sub interface created successfully for: {}, subInterface: {}", swIfName, subInterface);
// Add new interface to our interface context
interfaceContext.addName(reply.swIfIndex, swIfName);
}
}
private CreateSubif getCreateSubifRequest(final SubInterface subInterface, final int swIfIndex) {
CreateSubif request = new CreateSubif();
request.subId = Math.toIntExact(subInterface.getIdentifier().intValue());
request.swIfIndex = swIfIndex;
switch (subInterface.getNumberOfTags()) {
case 0:
request.noTags = 1;
break;
case 1:
request.oneTag = 1;
break;
case 2:
request.twoTags = 1;
break;
}
request.dot1Ad = booleanToByte(VlanType._802dot1q.equals(subInterface.getVlanType()));
request.exactMatch = booleanToByte(subInterface.isExactMatch());
request.defaultSub = booleanToByte(subInterface.isDefaultSubif());
request.outerVlanIdAny = booleanToByte(subInterface.isMatchAnyInnerId());
request.innerVlanIdAny = booleanToByte(subInterface.isMatchAnyInnerId());
request.outerVlanId = vlanTagToChar(subInterface.getOuterId());
request.innerVlanId = vlanTagToChar(subInterface.getInnerId());
return request;
}
private static char vlanTagToChar(@Nullable VlanTag tag) {
if (tag == null) {
return 0; // tell VPP that optional argument is missing
} else {
return (char)tag.getValue().intValue();
}
}
@Override
public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<SubInterface> id,
@Nonnull final SubInterface dataBefore, @Nonnull final SubInterface dataAfter,
@Nonnull final WriteContext writeContext) throws WriteFailedException.UpdateFailedException {
if (dataBefore.equals(dataAfter)) {
LOG.debug("dataBefore equals dataAfter, update will not be performed");
return;
}
throw new UnsupportedOperationException("Sub interface update is not supported");
}
@Override
public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<SubInterface> id,
@Nonnull final SubInterface dataBefore, @Nonnull final WriteContext writeContext)
throws WriteFailedException.DeleteFailedException {
throw new UnsupportedOperationException("Sub interface delete is not supported");
}
}
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