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/*
* Copyright (c) 2019 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.v3po.write;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Preconditions.checkState;
import io.fd.hc2vpp.common.translate.util.NamingContext;
import io.fd.honeycomb.translate.util.RWUtils;
import io.fd.honeycomb.translate.write.DataValidationFailedException.CreateValidationFailedException;
import io.fd.honeycomb.translate.write.DataValidationFailedException.DeleteValidationFailedException;
import io.fd.honeycomb.translate.write.DataValidationFailedException.UpdateValidationFailedException;
import io.fd.honeycomb.translate.write.Validator;
import io.fd.honeycomb.translate.write.WriteContext;
import java.util.List;
import java.util.Optional;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.interfaces._interface.sub.interfaces.SubInterface;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.sub._interface.ip4.attributes.Ipv4;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.sub._interface.ip6.attributes.Ipv6;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.sub._interface.routing.attributes.Routing;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
public class SubInterfaceRoutingValidator implements Validator<Routing> {
public SubInterfaceRoutingValidator(@Nonnull final NamingContext interfaceContext) {
checkNotNull(interfaceContext, "interfaceContext should not be null");
}
@Override
public void validateWrite(@Nonnull final InstanceIdentifier<Routing> id, @Nonnull final Routing dataAfter,
@Nonnull final WriteContext writeContext)
throws CreateValidationFailedException {
try {
checkInterfaceAddressConf(id, writeContext, true);
} catch (Exception e) {
throw new CreateValidationFailedException(id, dataAfter, e);
}
}
@Override
public void validateUpdate(@Nonnull final InstanceIdentifier<Routing> id, @Nonnull final Routing dataBefore,
@Nonnull final Routing dataAfter, @Nonnull final WriteContext writeContext)
throws UpdateValidationFailedException {
try {
checkInterfaceAddressConf(id, writeContext, true);
} catch (Exception e) {
throw new UpdateValidationFailedException(id, dataBefore, dataAfter, e);
}
}
@Override
public void validateDelete(@Nonnull final InstanceIdentifier<Routing> id, @Nonnull final Routing dataBefore,
@Nonnull final WriteContext writeContext)
throws DeleteValidationFailedException {
try {
checkInterfaceAddressConf(id, writeContext, false);
} catch (Exception e) {
throw new DeleteValidationFailedException(id, e);
}
}
private void checkInterfaceAddressConf(@Nonnull final InstanceIdentifier<Routing> id,
@Nonnull final WriteContext ctx,
boolean checkBefore) {
checkState(isAddressNotPresentForSubInterface(id, ctx, checkBefore),
"Cannot change routing configuration, if address is present for sub-interface");
}
/**
* Returns true if interface does not have v4/v6 addresses configured
*/
private boolean isAddressNotPresentForSubInterface(@Nonnull final InstanceIdentifier<Routing> id,
@Nonnull final WriteContext ctx,
boolean checkBefore) {
final Optional<SubInterface> subInterfaceData = checkBefore
?
ctx.readBefore(RWUtils.cutId(id, SubInterface.class))
:
ctx.readAfter(RWUtils.cutId(id, SubInterface.class));
if (subInterfaceData.isPresent()) {
final SubInterface subInterface = subInterfaceData.get();
final boolean v4NotPresent =
java.util.Optional.ofNullable(subInterface.getIpv4()).map(Ipv4::getAddress).map(List::isEmpty)
.orElse(true);
final boolean v6NotPresent =
java.util.Optional.ofNullable(subInterface.getIpv6()).map(Ipv6::getAddress).map(List::isEmpty)
.orElse(true);
return v4NotPresent && v6NotPresent;
}
return true;
}
}
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