diff options
Diffstat (limited to 'vpp-classifier/impl/src/main/java/io/fd/hc2vpp/vpp/classifier/read/ClassifyTableReader.java')
-rw-r--r-- | vpp-classifier/impl/src/main/java/io/fd/hc2vpp/vpp/classifier/read/ClassifyTableReader.java | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/vpp-classifier/impl/src/main/java/io/fd/hc2vpp/vpp/classifier/read/ClassifyTableReader.java b/vpp-classifier/impl/src/main/java/io/fd/hc2vpp/vpp/classifier/read/ClassifyTableReader.java new file mode 100644 index 000000000..27d3e1075 --- /dev/null +++ b/vpp-classifier/impl/src/main/java/io/fd/hc2vpp/vpp/classifier/read/ClassifyTableReader.java @@ -0,0 +1,177 @@ +/* + * Copyright (c) 2017 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.hc2vpp.vpp.classifier.read; + +import static com.google.common.base.Preconditions.checkNotNull; + +import com.google.common.base.Optional; +import com.google.common.base.Preconditions; +import com.google.common.primitives.UnsignedInts; +import io.fd.hc2vpp.common.translate.util.FutureJVppCustomizer; +import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer; +import io.fd.hc2vpp.common.translate.util.MacTranslator; +import io.fd.hc2vpp.v3po.interfacesstate.InterfaceDataTranslator; +import io.fd.hc2vpp.vpp.classifier.context.VppClassifierContextManager; +import io.fd.honeycomb.translate.read.ReadContext; +import io.fd.honeycomb.translate.read.ReadFailedException; +import io.fd.honeycomb.translate.spi.read.Initialized; +import io.fd.honeycomb.translate.spi.read.InitializingListReaderCustomizer; +import io.fd.vpp.jvpp.core.dto.ClassifyTableIds; +import io.fd.vpp.jvpp.core.dto.ClassifyTableIdsReply; +import io.fd.vpp.jvpp.core.dto.ClassifyTableInfo; +import io.fd.vpp.jvpp.core.dto.ClassifyTableInfoReply; +import io.fd.vpp.jvpp.core.future.FutureJVppCore; +import java.util.Arrays; +import java.util.Collections; +import java.util.List; +import java.util.stream.Collectors; +import javax.annotation.Nonnull; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.HexString; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev161214.VppClassifier; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev161214.VppClassifierStateBuilder; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev161214.VppNode; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev161214.VppNodeName; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev161214.vpp.classifier.state.ClassifyTable; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev161214.vpp.classifier.state.ClassifyTableBuilder; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev161214.vpp.classifier.state.ClassifyTableKey; +import org.opendaylight.yangtools.concepts.Builder; +import org.opendaylight.yangtools.yang.binding.DataObject; +import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * Reader customizer responsible for classify table read.<br> to VPP.<br> Equivalent to invoking {@code vppctl show + * class table} command. + */ +public class ClassifyTableReader extends FutureJVppCustomizer + implements InitializingListReaderCustomizer<ClassifyTable, ClassifyTableKey, ClassifyTableBuilder>, VppNodeReader, + MacTranslator, InterfaceDataTranslator, JvppReplyConsumer { + + private static final Logger LOG = LoggerFactory.getLogger(ClassifyTableReader.class); + private final VppClassifierContextManager classifyTableContext; + + public ClassifyTableReader(@Nonnull final FutureJVppCore futureJVppCore, + @Nonnull final VppClassifierContextManager classifyTableContext) { + super(futureJVppCore); + this.classifyTableContext = checkNotNull(classifyTableContext, "classifyTableContext should not be null"); + } + + + @Override + public void merge(@Nonnull final Builder<? extends DataObject> builder, + @Nonnull final List<ClassifyTable> readData) { + ((VppClassifierStateBuilder) builder).setClassifyTable(readData); + } + + @Nonnull + @Override + public ClassifyTableBuilder getBuilder(@Nonnull final InstanceIdentifier<ClassifyTable> id) { + return new ClassifyTableBuilder(); + } + + @Override + public void readCurrentAttributes(@Nonnull final InstanceIdentifier<ClassifyTable> id, + @Nonnull final ClassifyTableBuilder builder, @Nonnull final ReadContext ctx) + throws ReadFailedException { + LOG.debug("Reading attributes for classify table: {}", id); + + final ClassifyTableKey key = id.firstKeyOf(ClassifyTable.class); + Preconditions.checkArgument(key != null, "could not find ClassifyTable key in {}", id); + final ClassifyTableInfo request = new ClassifyTableInfo(); + + final String tableName = key.getName(); + if (!classifyTableContext.containsTable(tableName, ctx.getMappingContext())) { + LOG.debug("Could not find classify table {} in the naming context", tableName); + return; + } + request.tableId = classifyTableContext.getTableIndex(tableName, ctx.getMappingContext()); + + + final ClassifyTableInfoReply reply = + getReplyForRead(getFutureJVpp().classifyTableInfo(request).toCompletableFuture(), id); + + // mandatory values: + builder.setName(tableName); + builder.setKey(key); + builder.setNbuckets(UnsignedInts.toLong(reply.nbuckets)); + builder.setSkipNVectors(UnsignedInts.toLong(reply.skipNVectors)); + + // optional value read from context + final Optional<String> tableBaseNode = + classifyTableContext.getTableBaseNode(tableName, ctx.getMappingContext()); + if (tableBaseNode.isPresent()) { + builder.setClassifierNode(new VppNodeName(tableBaseNode.get())); + } + + final Optional<VppNode> node = + readVppNode(reply.tableId, reply.missNextIndex, classifyTableContext, ctx.getMappingContext(), LOG); + if (node.isPresent()) { + builder.setMissNext(node.get()); + } else { + builder.setMissNext(new VppNode(new VppNodeName("unknown"))); // TODO(HC2VPP-9): remove this workaround + } + builder.setMask(new HexString(printHexBinary(reply.mask))); + builder.setActiveSessions(UnsignedInts.toLong(reply.activeSessions)); + + if (reply.nextTableIndex != ~0) { + // next table index is present: + builder.setNextTable(classifyTableContext.getTableName(reply.nextTableIndex, ctx.getMappingContext())); + } + + if (LOG.isTraceEnabled()) { + LOG.trace("Attributes for classify table {} successfully read: {}", id, builder.build()); + } + } + + @Nonnull + @Override + public List<ClassifyTableKey> getAllIds(@Nonnull final InstanceIdentifier<ClassifyTable> id, + @Nonnull final ReadContext context) throws ReadFailedException { + LOG.debug("Reading list of keys for classify tables: {}", id); + + final ClassifyTableIdsReply classifyTableIdsReply = + getReplyForRead(getFutureJVpp().classifyTableIds(new ClassifyTableIds()).toCompletableFuture(), + id); + if (classifyTableIdsReply.ids != null) { + return Arrays.stream(classifyTableIdsReply.ids).mapToObj(i -> { + final String tableName = classifyTableContext.getTableName(i, context.getMappingContext()); + LOG.trace("Classify table with name: {} and index: {} found in VPP", tableName, i); + return new ClassifyTableKey(tableName); + }).collect(Collectors.toList()); + } else { + return Collections.emptyList(); + } + } + + @Override + public Initialized<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev161214.vpp.classifier.ClassifyTable> init( + @Nonnull final InstanceIdentifier<ClassifyTable> id, @Nonnull final ClassifyTable readValue, + @Nonnull final ReadContext ctx) { + return Initialized.create(getCfgId(id), + new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev161214.vpp.classifier.ClassifyTableBuilder(readValue) + .setName(readValue.getName()) + .build()); + } + + static InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev161214.vpp.classifier.ClassifyTable> getCfgId( + final InstanceIdentifier<ClassifyTable> id) { + return InstanceIdentifier.create(VppClassifier.class) + .child(org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev161214.vpp.classifier.ClassifyTable.class, + new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev161214.vpp.classifier.ClassifyTableKey(id.firstKeyOf(ClassifyTable.class).getName())); + } +} |