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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.nat.write.ifc;
import io.fd.hc2vpp.common.translate.util.ByteDataTranslator;
import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer;
import io.fd.hc2vpp.common.translate.util.NamingContext;
import io.fd.honeycomb.translate.spi.write.WriterCustomizer;
import io.fd.honeycomb.translate.write.WriteContext;
import io.fd.honeycomb.translate.write.WriteFailedException;
import io.fd.vpp.jvpp.dto.JVppReply;
import io.fd.vpp.jvpp.snat.dto.SnatInterfaceAddDelFeature;
import io.fd.vpp.jvpp.snat.dto.SnatInterfaceAddDelFeatureReply;
import io.fd.vpp.jvpp.snat.dto.SnatInterfaceAddDelOutputFeature;
import io.fd.vpp.jvpp.snat.dto.SnatInterfaceAddDelOutputFeatureReply;
import io.fd.vpp.jvpp.snat.future.FutureJVppSnatFacade;
import java.util.concurrent.CompletionStage;
import javax.annotation.Nonnull;
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._interface.nat.rev170801.InterfaceNatVppFeatureAttributes;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
abstract class AbstractInterfaceNatCustomizer<D extends InterfaceNatVppFeatureAttributes & DataObject>
implements ByteDataTranslator, JvppReplyConsumer, WriterCustomizer<D> {
private final FutureJVppSnatFacade jvppSnat;
private final NamingContext ifcContext;
AbstractInterfaceNatCustomizer(@Nonnull final FutureJVppSnatFacade jvppSnat,
@Nonnull final NamingContext ifcContext) {
this.jvppSnat = jvppSnat;
this.ifcContext = ifcContext;
}
@Override
public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<D> id, @Nonnull final D dataAfter,
@Nonnull final WriteContext writeContext) throws WriteFailedException {
final String ifcName = getName(id);
getLog().debug("Enabling " + getType() + " NAT on interface: {}", ifcName);
getLog().debug("Enabling {} NAT: {}", dataAfter, id);
final int ifcIndex = ifcContext.getIndex(ifcName, writeContext.getMappingContext());
final JVppReply reply;
if (dataAfter.isPostRouting()) {
reply = postRoutingNat(id, ifcIndex, true);
} else {
reply = preRoutingNat(id, ifcIndex, true);
}
getLog().debug("NAT {} enabled successfully on: {}, reply: {}", dataAfter, ifcName, reply);
}
@Override
public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<D> id,
@Nonnull final D dataBefore, @Nonnull final D dataAfter,
@Nonnull final WriteContext writeContext) throws WriteFailedException {
throw new WriteFailedException.UpdateFailedException(id, dataBefore, dataAfter,
new UnsupportedOperationException("Unable to update NAT feature"));
}
@Override
public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<D> id,
@Nonnull final D dataBefore, @Nonnull final WriteContext writeContext)
throws WriteFailedException {
final String ifcName = getName(id);
getLog().debug("Disabling " + getType() + " NAT on interface: {}", ifcName);
getLog().debug("Disabling {} NAT: {}", dataBefore, id);
final int ifcIndex = ifcContext.getIndex(ifcName, writeContext.getMappingContext());
final JVppReply reply;
if (dataBefore.isPostRouting()) {
reply = postRoutingNat(id, ifcIndex, false);
} else {
reply = preRoutingNat(id, ifcIndex, false);
}
getLog().debug("NAT {} disabled successfully on: {}, reply: {}", dataBefore, ifcName, reply);
}
protected String getName(final InstanceIdentifier<D> id) {
return id.firstKeyOf(Interface.class).getName();
}
private JVppReply postRoutingNat(@Nonnull final InstanceIdentifier<D> id, final int ifcIndex, final boolean enable)
throws WriteFailedException {
final SnatInterfaceAddDelOutputFeature request = new SnatInterfaceAddDelOutputFeature();
request.isAdd = booleanToByte(enable);
request.isInside = getType().isInside;
request.swIfIndex = ifcIndex;
final CompletionStage<SnatInterfaceAddDelOutputFeatureReply> future =
jvppSnat.snatInterfaceAddDelOutputFeature(request);
return getReplyForWrite(future.toCompletableFuture(), id);
}
private JVppReply preRoutingNat(@Nonnull final InstanceIdentifier<D> id, final int ifcIndex, final boolean enable)
throws WriteFailedException {
final SnatInterfaceAddDelFeature request = new SnatInterfaceAddDelFeature();
request.isAdd = booleanToByte(enable);
request.isInside = getType().isInside;
request.swIfIndex = ifcIndex;
final CompletionStage<SnatInterfaceAddDelFeatureReply> future = jvppSnat.snatInterfaceAddDelFeature(request);
return getReplyForWrite(future.toCompletableFuture(), id);
}
enum NatType {
INBOUND((byte) 1), OUTBOUND((byte) 0);
private final byte isInside;
NatType(final byte isInside) {
this.isInside = isInside;
}
}
abstract NatType getType();
abstract Logger getLog();
}
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