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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.interfacesstate;
import static io.fd.honeycomb.v3po.translate.v3po.interfacesstate.InterfaceUtils.isInterfaceOfType;
import io.fd.honeycomb.v3po.translate.read.ReadContext;
import io.fd.honeycomb.v3po.translate.read.ReadFailedException;
import io.fd.honeycomb.v3po.translate.spi.read.ChildReaderCustomizer;
import io.fd.honeycomb.v3po.translate.v3po.util.FutureJVppCustomizer;
import io.fd.honeycomb.v3po.translate.v3po.util.NamingContext;
import io.fd.honeycomb.v3po.translate.v3po.util.TranslateUtils;
import java.math.BigInteger;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CompletionStage;
import java.util.stream.Collectors;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.InterfaceKey;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VhostUserRole;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VppInterfaceStateAugmentationBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces.state._interface.VhostUser;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces.state._interface.VhostUserBuilder;
import org.opendaylight.yangtools.concepts.Builder;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.openvpp.jvpp.dto.SwInterfaceVhostUserDetails;
import org.openvpp.jvpp.dto.SwInterfaceVhostUserDetailsReplyDump;
import org.openvpp.jvpp.dto.SwInterfaceVhostUserDump;
import org.openvpp.jvpp.future.FutureJVpp;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class VhostUserCustomizer extends FutureJVppCustomizer
implements ChildReaderCustomizer<VhostUser, VhostUserBuilder> {
private static final Logger LOG = LoggerFactory.getLogger(VhostUserCustomizer.class);
public static final String DUMPED_VHOST_USERS_CONTEXT_KEY = VhostUserCustomizer.class.getName() + "dumpedVhostUsersDuringGetAllIds";
private NamingContext interfaceContext;
public VhostUserCustomizer(@Nonnull final FutureJVpp jvpp, @Nonnull final NamingContext interfaceContext) {
super(jvpp);
this.interfaceContext = interfaceContext;
}
@Override
public void merge(@Nonnull Builder<? extends DataObject> parentBuilder, @Nonnull VhostUser readValue) {
((VppInterfaceStateAugmentationBuilder) parentBuilder).setVhostUser(readValue);
}
@Nonnull
@Override
public VhostUserBuilder getBuilder(@Nonnull InstanceIdentifier<VhostUser> id) {
return new VhostUserBuilder();
}
@Override
public void readCurrentAttributes(@Nonnull final InstanceIdentifier<VhostUser> id,
@Nonnull final VhostUserBuilder builder,
@Nonnull final ReadContext ctx) throws ReadFailedException {
final InterfaceKey key = id.firstKeyOf(Interface.class);
// Relying here that parent InterfaceCustomizer was invoked first (PREORDER)
// to fill in the context with initial ifc mapping
final int index = interfaceContext.getIndex(key.getName(), ctx.getMappingContext());
if (!isInterfaceOfType(ctx.getModificationCache(), index, org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VhostUser.class)) {
return;
}
LOG.debug("Reading attributes for vhpost user interface: {}", key.getName());
@SuppressWarnings("unchecked")
Map<Integer, SwInterfaceVhostUserDetails> mappedVhostUsers =
(Map<Integer, SwInterfaceVhostUserDetails>) ctx.getModificationCache().get(DUMPED_VHOST_USERS_CONTEXT_KEY);
if(mappedVhostUsers == null) {
// Full VhostUser dump has to be performed here, no filter or anything is here to help so at least we cache it
final SwInterfaceVhostUserDump request = new SwInterfaceVhostUserDump();
final CompletionStage<SwInterfaceVhostUserDetailsReplyDump> swInterfaceVhostUserDetailsReplyDumpCompletionStage =
getFutureJVpp().swInterfaceVhostUserDump(request);
final SwInterfaceVhostUserDetailsReplyDump reply =
TranslateUtils.getReply(swInterfaceVhostUserDetailsReplyDumpCompletionStage.toCompletableFuture());
if(null == reply || null == reply.swInterfaceVhostUserDetails) {
mappedVhostUsers = Collections.emptyMap();
} else {
final List<SwInterfaceVhostUserDetails> swInterfaceVhostUserDetails = reply.swInterfaceVhostUserDetails;
// Cache interfaces dump in per-tx context to later be used in readCurrentAttributes
mappedVhostUsers = swInterfaceVhostUserDetails.stream()
.collect(Collectors.toMap(t -> t.swIfIndex, swInterfaceDetails -> swInterfaceDetails));
}
ctx.getModificationCache().put(DUMPED_VHOST_USERS_CONTEXT_KEY, mappedVhostUsers);
}
// Relying here that parent InterfaceCustomizer was invoked first to fill in the context with initial ifc mapping
final SwInterfaceVhostUserDetails swInterfaceVhostUserDetails = mappedVhostUsers.get(index);
LOG.trace("Vhost user interface: {} attributes returned from VPP: {}", key.getName(), swInterfaceVhostUserDetails);
builder.setRole(swInterfaceVhostUserDetails.isServer == 1 ? VhostUserRole.Server : VhostUserRole.Client);
builder.setFeatures(BigInteger.valueOf(swInterfaceVhostUserDetails.features));
builder.setNumMemoryRegions((long) swInterfaceVhostUserDetails.numRegions);
builder.setSocket(TranslateUtils.toString(swInterfaceVhostUserDetails.sockFilename));
builder.setVirtioNetHdrSize((long) swInterfaceVhostUserDetails.virtioNetHdrSz);
builder.setConnectError(Integer.toString(swInterfaceVhostUserDetails.sockErrno));
LOG.debug("Vhost user interface: {}, id: {} attributes read as: {}", key.getName(), index, builder);
}
}
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