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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 com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import com.google.common.base.Optional;
import io.fd.honeycomb.v3po.translate.Context;
import io.fd.honeycomb.v3po.translate.spi.write.ChildWriterCustomizer;
import io.fd.honeycomb.v3po.translate.v3po.util.VppApiCustomizer;
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.WriteFailedException;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.EthernetCsmacd;
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.VppInterfaceAugmentation;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VxlanTunnel;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class VppInterfaceCustomizer extends VppApiCustomizer
implements ChildWriterCustomizer<VppInterfaceAugmentation> {
private static final Logger LOG = LoggerFactory.getLogger(VppInterfaceCustomizer.class);
public VppInterfaceCustomizer(final org.openvpp.vppjapi.vppApi vppApi) {
super(vppApi);
}
@Nonnull
@Override
public Optional<VppInterfaceAugmentation> extract(
@Nonnull final InstanceIdentifier<VppInterfaceAugmentation> currentId,
@Nonnull final DataObject parentData) {
return Optional.fromNullable(((Interface) parentData).getAugmentation(VppInterfaceAugmentation.class));
}
@Override
public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<VppInterfaceAugmentation> id,
@Nonnull final VppInterfaceAugmentation dataAfter,
@Nonnull final Context writeContext)
throws WriteFailedException {
final Interface ifc = (Interface) writeContext.get(InterfaceCustomizer.IFC_AFTER_CTX);
try {
setInterface(id, ifc, dataAfter);
} catch (VppApiInvocationException e) {
LOG.warn("Update of VppInterfaceAugment failed", e);
throw new WriteFailedException.CreateFailedException(id, dataAfter, e);
}
}
@Override
public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<VppInterfaceAugmentation> id,
@Nonnull final VppInterfaceAugmentation dataBefore,
@Nonnull final VppInterfaceAugmentation dataAfter,
@Nonnull final Context writeContext)
throws WriteFailedException.UpdateFailedException {
final Interface ifcBefore = (Interface) writeContext.get(InterfaceCustomizer.IFC_BEFORE_CTX);
final Interface ifc = (Interface) writeContext.get(InterfaceCustomizer.IFC_AFTER_CTX);
try {
updateInterface(id, ifc, dataBefore, dataAfter);
} catch (VppApiInvocationException e) {
LOG.warn("Update of VppInterfaceAugment failed", e);
throw new WriteFailedException.UpdateFailedException(id, dataBefore, dataAfter, e);
}
}
@Override
public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<VppInterfaceAugmentation> id,
@Nonnull final VppInterfaceAugmentation dataBefore,
@Nonnull final Context writeContext) {
final Interface ifcBefore = (Interface) writeContext.get(InterfaceCustomizer.IFC_BEFORE_CTX);
LOG.info("Deleting interface: {}, type: {}", ifcBefore.getName(), ifcBefore.getType().getSimpleName());
if (ifcBefore.getType().isAssignableFrom(EthernetCsmacd.class)) {
LOG.error("Interface {}, type: {} cannot be deleted",
ifcBefore.getName(), ifcBefore.getType().getSimpleName());
/* FIXME: Add additional interface types here.
*
* } else if (swIf.getType().isAssignableFrom(*.class)) {
*/
}
}
private void updateInterface(final InstanceIdentifier<VppInterfaceAugmentation> id, final Interface swIf,
final VppInterfaceAugmentation dataBefore,
final VppInterfaceAugmentation dataAfter) throws VppApiInvocationException {
LOG.info("Updating interface {}, type: {}", swIf.getName(), swIf.getType().getSimpleName());
LOG.debug("Updating interface {}", swIf);
Class<? extends InterfaceType> ifType = checkNotNull(swIf.getType(), "Interface type missing for %s", swIf);
String swIfName = swIf.getName();
int swIfIndex = getVppApi().swIfIndexFromName(swIfName);
checkArgument(swIfIndex != -1, "Updating non-existing vpp interface: %s", swIfName);
// TODO handle updates properly
if (VxlanTunnel.class.isAssignableFrom(ifType)) {
updateVxlanTunnelInterface(swIf);
} else if (EthernetCsmacd.class.isAssignableFrom(ifType)) {
updateEthernetCsmacdInterface(swIf, swIfName, swIfIndex);
}
}
private void setInterface(final InstanceIdentifier<VppInterfaceAugmentation> id, final Interface swIf,
final VppInterfaceAugmentation dataAfter)
throws VppApiInvocationException, WriteFailedException {
LOG.info("Setting interface {}, type: {}", swIf.getName(), swIf.getType().getSimpleName());
LOG.debug("Setting interface {}", swIf);
Class<? extends InterfaceType> ifType = checkNotNull(swIf.getType(), "Interface type missing for %s", swIf);
String swIfName = swIf.getName();
int swIfIndex = getVppApi().swIfIndexFromName(swIfName);
checkArgument(swIfIndex == -1, "Creating already-existing vpp interface: %s", swIfName);
if (VxlanTunnel.class.isAssignableFrom(ifType)) {
createVxlanTunnelInterface(swIf, swIfName);
} else if (EthernetCsmacd.class.isAssignableFrom(ifType)) {
createEthernetCsmacdInterface(id, swIfName, dataAfter);
}
}
private void createVxlanTunnelInterface(final Interface swIf, final String swIfName)
throws VppApiInvocationException {
LOG.debug("Creating {} interface {}", swIf.getType().getSimpleName(), swIf.getName());
// FIXME, Vxlan child writer needs to be handled before this is
int newSwIfIndex = getVppApi().swIfIndexFromName(swIfName);
setInterfaceFlags(swIfName, newSwIfIndex, swIf.isEnabled()
? (byte) 1
: (byte) 0);
setDescription(swIf);
}
private void updateVxlanTunnelInterface(final Interface swIf) {
LOG.debug("Updating {} interface {}", swIf.getType().getSimpleName(), swIf.getName());
// TODO handle
}
private void createEthernetCsmacdInterface(final InstanceIdentifier<VppInterfaceAugmentation> id,
final String swIfName, final VppInterfaceAugmentation dataAfter) throws WriteFailedException {
LOG.warn("Unable to create interface: {}, type: {}", swIfName, EthernetCsmacd.class);
throw new WriteFailedException.CreateFailedException(id, dataAfter);
}
private void updateEthernetCsmacdInterface(final Interface swIf,
final String swIfName, final int swIfIndex)
throws VppApiInvocationException {
LOG.debug("Updating {} interface {}", swIf.getType().getSimpleName(), swIf.getName());
byte enabled = swIf.isEnabled()
? (byte) 1
: (byte) 0;
setInterfaceFlags(swIfName, swIfIndex, enabled);
setDescription(swIf);
}
private void setInterfaceFlags(final String swIfName, final int swIfIndex, final byte enabled)
throws VppApiInvocationException {
int ctxId = getVppApi().swInterfaceSetFlags(swIfIndex, enabled, enabled, (byte) 0 /* deleted */);
LOG.debug("Updating interface flags for: {}, index: {}, enabled: {}, ctxId: {}", swIfName, swIfIndex,
enabled, ctxId);
final int rv = V3poUtils.waitForResponse(ctxId, getVppApi());
if (rv < 0) {
LOG.warn("Failed to update interface flags for: {}, index: {}, enabled: {}, ctxId: {}", swIfName, swIfIndex,
enabled, ctxId);
throw new VppApiInvocationException("swInterfaceSetFlags", ctxId, rv);
} else {
LOG.debug("Interface flags updated successfully for: {}, index: {}, enabled: {}, ctxId: {}",
swIfName, swIfIndex, enabled, ctxId);
}
}
private void setDescription(final Interface swIf) {
if (swIf.getDescription() != null) {
getVppApi().setInterfaceDescription(swIf.getName(), swIf.getDescription());
} else {
getVppApi().setInterfaceDescription(swIf.getName(), "");
}
}
}
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