diff options
Diffstat (limited to 'v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/VhostUserCustomizer.java')
-rw-r--r-- | v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/VhostUserCustomizer.java | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/VhostUserCustomizer.java b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/VhostUserCustomizer.java new file mode 100644 index 000000000..a9bf069b2 --- /dev/null +++ b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/VhostUserCustomizer.java @@ -0,0 +1,130 @@ +/* + * 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.translate.v3po.interfacesstate; + +import static io.fd.honeycomb.translate.v3po.interfacesstate.InterfaceUtils.isInterfaceOfType; + +import io.fd.honeycomb.translate.read.ReadContext; +import io.fd.honeycomb.translate.spi.read.ReaderCustomizer; +import io.fd.honeycomb.translate.read.ReadFailedException; +import io.fd.honeycomb.translate.v3po.util.FutureJVppCustomizer; +import io.fd.honeycomb.translate.v3po.util.NamingContext; +import io.fd.honeycomb.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.VppBaseCallException; +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 ReaderCustomizer<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 { + try { + final InterfaceKey key = id.firstKeyOf(Interface.class); + final int index = interfaceContext.getIndex(key.getName(), ctx.getMappingContext()); + if (!isInterfaceOfType(getFutureJVpp(), ctx.getModificationCache(), id, 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.getReplyForRead(swInterfaceVhostUserDetailsReplyDumpCompletionStage.toCompletableFuture(), id); + + 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); + } catch (VppBaseCallException e) { + LOG.warn("Failed to readCurrentAttributes for: {}", id, e); + throw new ReadFailedException(id, e); + } + } +} |