diff options
Diffstat (limited to 'nsh/impl/src/main/java/io/fd/hc2vpp/vppnsh/impl/config/NshEntryWriterCustomizer.java')
-rwxr-xr-x | nsh/impl/src/main/java/io/fd/hc2vpp/vppnsh/impl/config/NshEntryWriterCustomizer.java | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/nsh/impl/src/main/java/io/fd/hc2vpp/vppnsh/impl/config/NshEntryWriterCustomizer.java b/nsh/impl/src/main/java/io/fd/hc2vpp/vppnsh/impl/config/NshEntryWriterCustomizer.java new file mode 100755 index 000000000..50b0fa6f8 --- /dev/null +++ b/nsh/impl/src/main/java/io/fd/hc2vpp/vppnsh/impl/config/NshEntryWriterCustomizer.java @@ -0,0 +1,151 @@ +/* + * Copyright (c) 2016 Intel 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.vppnsh.impl.config; + +import static com.google.common.base.Preconditions.checkNotNull; +import static com.google.common.base.Preconditions.checkState; + +import io.fd.honeycomb.translate.MappingContext; +import io.fd.honeycomb.translate.spi.write.ListWriterCustomizer; +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.write.WriteContext; +import io.fd.honeycomb.translate.write.WriteFailedException; +import io.fd.hc2vpp.vppnsh.impl.util.FutureJVppNshCustomizer; +import io.fd.vpp.jvpp.nsh.dto.NshAddDelEntry; +import io.fd.vpp.jvpp.nsh.dto.NshAddDelEntryReply; +import io.fd.vpp.jvpp.nsh.future.FutureJVppNsh; +import java.util.concurrent.CompletionStage; +import javax.annotation.Nonnull; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Ethernet; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Ipv4; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Ipv6; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.MdType1; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.NshMdType1Augment; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.entries.NshEntry; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.entries.NshEntryKey; +import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * Writer customizer responsible for NshEntry create/delete. + */ +public class NshEntryWriterCustomizer extends FutureJVppNshCustomizer + implements ListWriterCustomizer<NshEntry, NshEntryKey>, ByteDataTranslator, JvppReplyConsumer { + + private static final Logger LOG = LoggerFactory.getLogger(NshEntryWriterCustomizer.class); + private final NamingContext nshEntryContext; + + public NshEntryWriterCustomizer(@Nonnull final FutureJVppNsh futureJVppNsh, + @Nonnull final NamingContext nshEntryContext) { + super(futureJVppNsh); + this.nshEntryContext = checkNotNull(nshEntryContext, "nshEntryContext should not be null"); + } + + @Override + public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<NshEntry> id, + @Nonnull final NshEntry dataAfter, @Nonnull final WriteContext writeContext) + throws WriteFailedException { + LOG.debug("Creating nsh entry: iid={} dataAfter={}", id, dataAfter); + final int newEntryIndex = + nshAddDelEntry(true, id, dataAfter, ~0 /* value not present */, writeContext.getMappingContext()); + // Add nsh entry name <-> vpp index mapping to the naming context: + nshEntryContext.addName(newEntryIndex, dataAfter.getName(), writeContext.getMappingContext()); + LOG.debug("Successfully created nsh entry(id={]): iid={} dataAfter={}", newEntryIndex, id, dataAfter); + } + + @Override + public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<NshEntry> id, + @Nonnull final NshEntry dataBefore, @Nonnull final NshEntry dataAfter, + @Nonnull final WriteContext writeContext) throws WriteFailedException { + throw new UnsupportedOperationException("Nsh entry update is not supported"); + } + + @Override + public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<NshEntry> id, + @Nonnull final NshEntry dataBefore, + @Nonnull final WriteContext writeContext) throws WriteFailedException { + LOG.debug("Removing nsh entry: iid={} dataBefore={}", id, dataBefore); + final String entryName = dataBefore.getName(); + checkState(nshEntryContext.containsIndex(entryName, writeContext.getMappingContext()), + "Removing nsh entry {}, but index could not be found in the nsh entry context", entryName); + + final int entryIndex = nshEntryContext.getIndex(entryName, writeContext.getMappingContext()); + nshAddDelEntry(false, id, dataBefore, entryIndex, writeContext.getMappingContext()); + + // Remove deleted interface from interface context: + nshEntryContext.removeName(dataBefore.getName(), writeContext.getMappingContext()); + LOG.debug("Successfully removed nsh entry(id={]): iid={} dataAfter={}", entryIndex, id, dataBefore); + } + + private int nshAddDelEntry(final boolean isAdd, @Nonnull final InstanceIdentifier<NshEntry> id, + @Nonnull final NshEntry entry, final int entryId, final MappingContext ctx) + throws WriteFailedException { + final CompletionStage<NshAddDelEntryReply> createNshEntryReplyCompletionStage = + getFutureJVppNsh().nshAddDelEntry(getNshAddDelEntryRequest(isAdd, entryId, entry, ctx)); + + final NshAddDelEntryReply reply = + getReplyForWrite(createNshEntryReplyCompletionStage.toCompletableFuture(), id); + return reply.entryIndex; + + } + + private void getNshEntryMdType1Request(@Nonnull final NshEntry entry, + @Nonnull NshAddDelEntry request) { + final NshMdType1Augment nshMdType1Augment = entry.getAugmentation(NshMdType1Augment.class); + if (nshMdType1Augment != null) { + request.c1 = (int) nshMdType1Augment.getC1().longValue(); + request.c2 = (int) nshMdType1Augment.getC2().longValue(); + request.c3 = (int) nshMdType1Augment.getC3().longValue(); + request.c4 = (int) nshMdType1Augment.getC4().longValue(); + } + } + + private NshAddDelEntry getNshAddDelEntryRequest(final boolean isAdd, final int entryIndex, + @Nonnull final NshEntry entry, + @Nonnull final MappingContext ctx) { + final NshAddDelEntry request = new NshAddDelEntry(); + request.isAdd = booleanToByte(isAdd); + + request.verOC = (byte) entry.getVersion().shortValue(); + request.length = (byte) entry.getLength().intValue(); + if (entry.getNextProtocol() == Ipv4.class) { + request.nextProtocol = 1; + } else if (entry.getNextProtocol() == Ipv6.class) { + request.nextProtocol = 2; + } else if (entry.getNextProtocol() == Ethernet.class) { + request.nextProtocol = 3; + } else { + request.nextProtocol = 0; + } + + if (entry.getMdType() == MdType1.class) { + request.mdType = 1; + getNshEntryMdType1Request(entry, request); + } else if (entry.getMdType() == MdType1.class) { + request.mdType = 2; + } else { + request.mdType = 0; + } + + request.nspNsi = (entry.getNsp().intValue() << 8) | entry.getNsi(); + + return request; + } +} |