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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.request;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import io.fd.hc2vpp.srv6.write.DeleteRequest;
import io.fd.hc2vpp.srv6.write.WriteRequest;
import io.fd.honeycomb.translate.write.WriteFailedException;
import io.fd.jvpp.core.dto.SrSteeringAddDel;
import io.fd.jvpp.core.future.FutureJVppCore;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
/**
* Request for steering of L3 traffic
*/
public class L3SteeringRequest extends SteeringRequest implements WriteRequest, DeleteRequest {
public static final byte VPP_IPV4_TYPE = 4;
public static final byte VPP_IPV6_TYPE = 6;
public static final byte VPP_UNRESOLVED_TYPE = 0;
/**
* Where to install FIB entry for this steering
*/
private int fibTableIndex;
/**
* V4/V6 address for traffic type
*/
private IpPrefix prefix;
public L3SteeringRequest(final FutureJVppCore api) {
super(api);
}
@Override
public void checkValid() {
super.checkValid();
checkNotNull(prefix, "Prefix is null");
checkArgument(resolveTrafficType(prefix) == 4 || resolveTrafficType(prefix) == 6,
"IpPrefix format not recognized");
}
@Override
public void delete(final InstanceIdentifier<?> identifier) throws WriteFailedException {
checkValid();
getReplyForDelete(getApi().srSteeringAddDel(bindRequest(true)).toCompletableFuture(), identifier);
}
@Override
public void write(final InstanceIdentifier<?> identifier) throws WriteFailedException {
checkValid();
getReplyForWrite(getApi().srSteeringAddDel(bindRequest(false)).toCompletableFuture(), identifier);
}
private SrSteeringAddDel bindRequest(final boolean isDel) {
final SrSteeringAddDel request = new SrSteeringAddDel();
request.isDel = booleanToByte(isDel);
request.bsidAddr = ipv6AddressNoZoneToArray(getBindingSid());
request.tableId = fibTableIndex;
request.trafficType = resolveTrafficType(prefix);
request.prefixAddr = ipPrefixToArray(prefix);
request.maskWidth = extractPrefix(prefix);
return request;
}
public void setFibTableIndex(final int fibTableIndex) {
this.fibTableIndex = fibTableIndex;
}
private byte resolveTrafficType(IpPrefix prefix) {
if (prefix.getIpv4Prefix() != null) {
return VPP_IPV4_TYPE;
} else if (prefix.getIpv6Prefix() != null) {
return VPP_IPV6_TYPE;
}
return VPP_UNRESOLVED_TYPE;
}
public void setPrefix(final IpPrefix prefix) {
this.prefix = prefix;
}
}
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