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/*
* Copyright (c) 2018 Bell Canada, Pantheon Technologies 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.srv6.write.steering;
import io.fd.hc2vpp.common.translate.util.FutureJVppCustomizer;
import io.fd.hc2vpp.common.translate.util.NamingContext;
import io.fd.hc2vpp.srv6.util.Srv6Util;
import io.fd.hc2vpp.srv6.write.steering.request.L2SteeringRequest;
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.future.FutureJVppCore;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.hc2vpp.params.xml.ns.yang.vpp.oc.srte.policy.rev180514.sr.interfaces.Interface;
import org.opendaylight.yang.gen.v1.urn.hc2vpp.params.xml.ns.yang.vpp.oc.srte.policy.rev180514.sr.interfaces.InterfaceKey;
import org.opendaylight.yang.gen.v1.urn.hc2vpp.params.xml.ns.yang.vpp.oc.srte.policy.rev180514.sr.interfaces._interface.Config;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Address;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
public class InterfacesConfigCustomizer extends FutureJVppCustomizer implements
ListWriterCustomizer<Interface, InterfaceKey> {
private final NamingContext interfaceContext;
public InterfacesConfigCustomizer(@Nonnull final FutureJVppCore futureJVppCore,
@Nonnull final NamingContext interfaceContext) {
super(futureJVppCore);
this.interfaceContext = interfaceContext;
}
@Override
public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<Interface> instanceIdentifier,
@Nonnull final Interface anInterface, @Nonnull final WriteContext writeContext)
throws WriteFailedException {
if (anInterface.getConfig() != null) {
writeInterfaces(instanceIdentifier, anInterface.getConfig(), writeContext, true);
}
}
@Override
public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<Interface> instanceIdentifier,
@Nonnull final Interface anInterface, @Nonnull final WriteContext writeContext)
throws WriteFailedException {
if (anInterface.getConfig() != null) {
writeInterfaces(instanceIdentifier, anInterface.getConfig(), writeContext, false);
}
}
private void writeInterfaces(final @Nonnull InstanceIdentifier<Interface> instanceIdentifier,
final @Nonnull Config config, final @Nonnull WriteContext writeContext,
final boolean isWrite)
throws WriteFailedException {
Ipv6Address bsid = Srv6Util.extractBsid(instanceIdentifier, writeContext, isWrite);
if (bsid == null) {
throw new WriteFailedException.CreateFailedException(instanceIdentifier, config,
new Throwable("Failed to extract BSID from policy for prefix"));
}
if (config.getInputInterface() != null) {
// forward all traffic to policy for current interface
int index = interfaceContext.getIndex(config.getInputInterface(), writeContext.getMappingContext());
sendL2Steering(instanceIdentifier, bsid, index, getFutureJVpp(), isWrite);
}
}
private void sendL2Steering(final InstanceIdentifier<Interface> instanceIdentifier, final Ipv6Address bsid,
final int inputInterface, final FutureJVppCore api, final boolean isWrite)
throws WriteFailedException {
L2SteeringRequest request = new L2SteeringRequest(api);
request.setBindingSid(bsid);
request.setInputInterfaceIndex(inputInterface);
if (isWrite) {
request.write(instanceIdentifier);
} else {
request.delete(instanceIdentifier);
}
}
}
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