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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 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.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.interfaces._interface.L2;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces._interface.l2.Interconnection;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces._interface.l2.interconnection.BridgeBased;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces._interface.l2.interconnection.XconnectBased;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class L2Customizer extends VppApiCustomizer implements ChildWriterCustomizer<L2> {
private static final Logger LOG = LoggerFactory.getLogger(L2Customizer.class);
public L2Customizer(final org.openvpp.vppjapi.vppApi vppApi) {
super(vppApi);
}
@Nonnull
@Override
public Optional<L2> extract(@Nonnull final InstanceIdentifier<L2> currentId, @Nonnull final DataObject parentData) {
return Optional.fromNullable(((VppInterfaceAugmentation) parentData).getL2());
}
@Override
public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<L2> id, @Nonnull final L2 dataAfter,
@Nonnull final Context writeContext)
throws WriteFailedException {
final String ifcName = id.firstKeyOf(Interface.class).getName();
final int swIfc = getSwIfc(ifcName);
try {
setL2(id, swIfc, ifcName, dataAfter);
} catch (VppApiInvocationException e) {
LOG.warn("Write of L2 failed", e);
throw new WriteFailedException.CreateFailedException(id, dataAfter, e);
}
}
@Override
public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<L2> id, @Nonnull final L2 dataBefore,
@Nonnull final L2 dataAfter, @Nonnull final Context writeContext)
throws WriteFailedException {
final String ifcName = id.firstKeyOf(Interface.class).getName();
final int swIfc = getSwIfc(ifcName);
// TODO handle update properly (if possible)
try {
setL2(id, swIfc, ifcName, dataAfter);
} catch (VppApiInvocationException e) {
LOG.warn("Update of L2 failed", e);
throw new WriteFailedException.UpdateFailedException(id, dataBefore, dataAfter, e);
}
}
private int getSwIfc(final String ifcName) {
int swIfcIndex = getVppApi().swIfIndexFromName(ifcName);
checkArgument(swIfcIndex != -1, "Interface %s does not exist", ifcName);
return swIfcIndex;
}
@Override
public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<L2> id, @Nonnull final L2 dataBefore,
@Nonnull final Context writeContext) {
// TODO implement delete (if possible)
}
private void setL2(final InstanceIdentifier<L2> id, final int swIfIndex, final String ifcName, final L2 vppL2)
throws VppApiInvocationException, WriteFailedException {
LOG.debug("Setting L2 for interface: %s", ifcName);
// Nothing besides interconnection here
setInterconnection(id, swIfIndex, ifcName, vppL2);
}
private void setInterconnection(final InstanceIdentifier<L2> id, final int swIfIndex, final String ifcName,
final L2 vppL2)
throws VppApiInvocationException, WriteFailedException {
Interconnection ic = vppL2.getInterconnection();
if (ic instanceof XconnectBased) {
setXconnectBasedL2(swIfIndex, ifcName, (XconnectBased) ic);
} else if (ic instanceof BridgeBased) {
setBridgeBasedL2(swIfIndex, ifcName, (BridgeBased) ic);
} else {
// FIXME how does choice extensibility work
// FIXME it is not even possible to create a dedicated customizer for Interconnection, since it's not a DataObject
// FIXME we might need a choice customizer
// THis choice is already from augment, so its probably not possible to augment augmented choice
LOG.error("Unable to handle Interconnection of type {}", ic.getClass());
throw new WriteFailedException(id, "Unable to handle Interconnection of type " + ic.getClass());
}
}
private void setBridgeBasedL2(final int swIfIndex, final String ifcName, final BridgeBased bb)
throws VppApiInvocationException {
LOG.debug("Setting bridge based interconnection(bridge-domain=%s) for interface: %s",
bb.getBridgeDomain(), ifcName);
String bdName = bb.getBridgeDomain();
int bdId = getVppApi().bridgeDomainIdFromName(bdName);
checkArgument(bdId > 0, "Unable to set Interconnection for Interface: %s, bridge domain: %s does not exist",
ifcName, bdName);
byte bvi = bb.isBridgedVirtualInterface()
? (byte) 1
: (byte) 0;
byte shg = bb.getSplitHorizonGroup().byteValue();
final int ctxId = getVppApi().swInterfaceSetL2Bridge(swIfIndex, bdId, shg, bvi, (byte) 1 /* enable */);
final int rv = V3poUtils.waitForResponse(ctxId, getVppApi());
if (rv < 0) {
LOG.warn("Failed to update bridge based interconnection flags for: {}, interconnection: {}", ifcName,
bb);
throw new VppApiInvocationException("swInterfaceSetL2Bridge", ctxId, rv);
} else {
LOG.debug("Bridge based interconnection updated successfully for: {}, interconnection: {}", ifcName,
bb);
}
}
private void setXconnectBasedL2(final int swIfIndex, final String ifcName, final XconnectBased ic)
throws VppApiInvocationException {
String outSwIfName = ic.getXconnectOutgoingInterface();
LOG.debug("Setting xconnect based interconnection(outgoing ifc=%s) for interface: %s", outSwIfName,
ifcName);
int outSwIfIndex = getVppApi().swIfIndexFromName(outSwIfName);
checkArgument(outSwIfIndex > 0,
"Unable to set Interconnection for Interface: %s, outgoing interface: %s does not exist",
ifcName, outSwIfIndex);
int ctxId = getVppApi().swInterfaceSetL2Xconnect(swIfIndex, outSwIfIndex, (byte) 1 /* enable */);
final int rv = V3poUtils.waitForResponse(ctxId, getVppApi());
if (rv < 0) {
LOG.warn("Failed to update xconnect based interconnection flags for: {}, interconnection: {}",
ifcName, ic);
throw new VppApiInvocationException("swInterfaceSetL2Xconnect", ctxId, rv);
} else {
LOG.debug("Xconnect based interconnection updated successfully for: {}, interconnection: {}", ifcName,
ic);
}
}
}
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