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authorMarek Gradzki <mgradzki@cisco.com>2016-07-13 08:48:14 +0200
committerMarek Gradzki <mgradzki@cisco.com>2016-07-14 10:53:40 +0200
commite5ddeadb5b19272c11b08bc8378e08551393c0d8 (patch)
tree3d4c758e091fcf9212eb0f1238eff3bee3dae51b /v3po/v3po2vpp/src/main/java/io
parent9e6835b79cda20c3614c6e76c64099ab64be2831 (diff)
HONEYCOMB-49: VPP classifier model. Translation layer implementation
Change-Id: I7d91f29f621fbb7ede9b3dd5d49a9b5c3ba58565 Signed-off-by: Marek Gradzki <mgradzki@cisco.com>
Diffstat (limited to 'v3po/v3po2vpp/src/main/java/io')
-rw-r--r--v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/interfacesstate/InterfaceUtils.java21
-rw-r--r--v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vppclassifier/ClassifySessionReader.java202
-rw-r--r--v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vppclassifier/ClassifySessionWriter.java157
-rw-r--r--v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vppclassifier/ClassifyTableReader.java147
-rw-r--r--v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vppclassifier/ClassifyTableWriter.java158
-rw-r--r--v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vppclassifier/VppNodeReader.java41
6 files changed, 720 insertions, 6 deletions
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/interfacesstate/InterfaceUtils.java b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/interfacesstate/InterfaceUtils.java
index 7b4b2d01e..f902f8985 100644
--- a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/interfacesstate/InterfaceUtils.java
+++ b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/interfacesstate/InterfaceUtils.java
@@ -117,21 +117,30 @@ public final class InterfaceUtils {
return vppPhysAddrToYang(vppPhysAddress, 0);
}
- public static String vppPhysAddrToYang(@Nonnull final byte[] vppPhysAddress, int startIndex) {
+ public static String vppPhysAddrToYang(@Nonnull final byte[] vppPhysAddress, final int startIndex) {
Objects.requireNonNull(vppPhysAddress, "Empty physical address bytes");
final int endIndex = startIndex + PHYSICAL_ADDRESS_LENGTH;
checkArgument(endIndex <= vppPhysAddress.length,
"Invalid physical address size (%s) for given startIndex (%s), expected >= %s", vppPhysAddress.length,
startIndex, endIndex);
- StringBuilder physAddr = new StringBuilder();
+ return printHexBinary(vppPhysAddress, startIndex, endIndex);
+ }
+
+ public static String printHexBinary(@Nonnull final byte[] bytes) {
+ Objects.requireNonNull(bytes, "bytes array should not be null");
+ return printHexBinary(bytes, 0, bytes.length);
+ }
+
+ private static String printHexBinary(@Nonnull final byte[] bytes, final int startIndex, final int endIndex) {
+ StringBuilder str = new StringBuilder();
- appendHexByte(physAddr, vppPhysAddress[startIndex]);
+ appendHexByte(str, bytes[startIndex]);
for (int i = startIndex + 1; i < endIndex; i++) {
- physAddr.append(":");
- appendHexByte(physAddr, vppPhysAddress[i]);
+ str.append(":");
+ appendHexByte(str, bytes[i]);
}
- return physAddr.toString();
+ return str.toString();
}
/**
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vppclassifier/ClassifySessionReader.java b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vppclassifier/ClassifySessionReader.java
new file mode 100644
index 000000000..002fc62fd
--- /dev/null
+++ b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vppclassifier/ClassifySessionReader.java
@@ -0,0 +1,202 @@
+/*
+ * 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.vppclassifier;
+
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkNotNull;
+import static com.google.common.base.Preconditions.checkState;
+import static io.fd.honeycomb.v3po.translate.v3po.interfacesstate.InterfaceUtils.printHexBinary;
+
+import com.google.common.base.Optional;
+import com.google.common.primitives.UnsignedInts;
+import io.fd.honeycomb.v3po.translate.read.ReadContext;
+import io.fd.honeycomb.v3po.translate.read.ReadFailedException;
+import io.fd.honeycomb.v3po.translate.spi.read.ListReaderCustomizer;
+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.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import javax.xml.bind.DatatypeConverter;
+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.rev150603.OpaqueIndex;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev150603.VppNode;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev150603.classify.table.attributes.ClassifySession;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev150603.classify.table.attributes.ClassifySessionBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev150603.classify.table.attributes.ClassifySessionKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev150603.vpp.classifier.ClassifyTable;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev150603.vpp.classifier.ClassifyTableBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev150603.vpp.classifier.ClassifyTableKey;
+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.ClassifySessionDetails;
+import org.openvpp.jvpp.dto.ClassifySessionDetailsReplyDump;
+import org.openvpp.jvpp.dto.ClassifySessionDump;
+import org.openvpp.jvpp.future.FutureJVpp;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Reader customizer responsible for classify session read.<br> to VPP.<br> Equivalent to invoking {@code vppctl show
+ * class table verbose} command.
+ */
+public class ClassifySessionReader extends FutureJVppCustomizer
+ implements ListReaderCustomizer<ClassifySession, ClassifySessionKey, ClassifySessionBuilder>, VppNodeReader {
+
+ private static final Logger LOG = LoggerFactory.getLogger(ClassifySessionReader.class);
+ static final String CACHE_KEY = ClassifySessionReader.class.getName();
+
+ private final NamingContext classifyTableContext;
+
+ public ClassifySessionReader(@Nonnull final FutureJVpp futureJvpp,
+ @Nonnull final NamingContext classifyTableContext) {
+ super(futureJvpp);
+ this.classifyTableContext = checkNotNull(classifyTableContext, "classifyTableContext should not be null");
+ }
+
+ @Override
+ public void merge(@Nonnull final Builder<? extends DataObject> builder,
+ @Nonnull final List<ClassifySession> readData) {
+ ((ClassifyTableBuilder) builder).setClassifySession(readData);
+ }
+
+ @Nonnull
+ @Override
+ public ClassifySessionBuilder getBuilder(@Nonnull final InstanceIdentifier<ClassifySession> id) {
+ return new ClassifySessionBuilder();
+ }
+
+ @Override
+ public void readCurrentAttributes(@Nonnull final InstanceIdentifier<ClassifySession> id,
+ @Nonnull final ClassifySessionBuilder builder, @Nonnull final ReadContext ctx)
+ throws ReadFailedException {
+ LOG.debug("Reading attributes for classify session: {}", id);
+
+ final ClassifySessionKey key = id.firstKeyOf(ClassifySession.class);
+ checkArgument(key != null, "could not find ClassifySession key in {}", id);
+
+ final ClassifySessionDetailsReplyDump classifySessionDump = dumpClassifySessions(id, ctx);
+ final byte[] match = DatatypeConverter.parseHexBinary(key.getMatch().getValue().replace(":", ""));
+ final Optional<ClassifySessionDetails> classifySession =
+ findClassifySessionDetailsByMatch(classifySessionDump, match);
+
+ if (classifySession.isPresent()) {
+ final ClassifySessionDetails detail = classifySession.get();
+ builder.setHitNextIndex(readVppNode(detail.hitNextIndex, LOG));
+ if (detail.opaqueIndex != ~0) {
+ // value is specified:
+ builder.setOpaqueIndex(readOpaqueIndex(detail.opaqueIndex));
+ }
+ builder.setAdvance(detail.advance);
+ builder.setMatch(key.getMatch());
+
+ if (LOG.isTraceEnabled()) {
+ LOG.trace("Attributes for classify session {} successfully read: {}", id, builder.build());
+ }
+ }
+ }
+
+ private OpaqueIndex readOpaqueIndex(final int opaqueIndex) {
+ // We first try to map the value to a vpp node, if that fails, simply wrap the u32 value
+ // FIXME: the approach might fail if the opaqueIndex contains small value that collides
+ // with some of the adjacent nodes
+ final VppNode node = readVppNode(opaqueIndex, LOG);
+ if (node != null) {
+ return new OpaqueIndex(node);
+ } else {
+ return new OpaqueIndex(UnsignedInts.toLong(opaqueIndex));
+ }
+ }
+
+ @Nullable
+ private ClassifySessionDetailsReplyDump dumpClassifySessions(@Nonnull final InstanceIdentifier<?> id,
+ @Nonnull final ReadContext ctx)
+ throws ReadFailedException {
+ final ClassifyTableKey tableKey = id.firstKeyOf(ClassifyTable.class);
+ checkArgument(tableKey != null, "could not find ClassifyTable key in {}", id);
+
+ final String cacheKey = CACHE_KEY + tableKey;
+
+ ClassifySessionDetailsReplyDump classifySessionDump =
+ (ClassifySessionDetailsReplyDump) ctx.getModificationCache().get(cacheKey);
+ if (classifySessionDump != null) {
+ LOG.debug("Classify sessions is present in cache: {}", cacheKey);
+ return classifySessionDump;
+ }
+
+ final String tableName = tableKey.getName();
+ checkState(classifyTableContext.containsIndex(tableName, ctx.getMappingContext()),
+ "Reading classify sessions for table {}, but table index could not be found in the classify table context",
+ tableName);
+ final int tableId = classifyTableContext.getIndex(tableName, ctx.getMappingContext());
+ LOG.debug("Dumping classify sessions for classify table id={}", tableId);
+
+ try {
+ final ClassifySessionDump dumpRequest = new ClassifySessionDump();
+ dumpRequest.tableId = tableId;
+ classifySessionDump = TranslateUtils
+ .getReplyForRead(getFutureJVpp().classifySessionDump(dumpRequest).toCompletableFuture(), id);
+
+ // update the cache:
+ ctx.getModificationCache().put(cacheKey, classifySessionDump);
+ return classifySessionDump;
+ } catch (VppBaseCallException e) {
+ throw new ReadFailedException(id, e);
+ }
+ }
+
+ private static Optional<ClassifySessionDetails> findClassifySessionDetailsByMatch(
+ @Nullable final ClassifySessionDetailsReplyDump classifySessionDump, @Nonnull final byte[] match) {
+ if (classifySessionDump != null && classifySessionDump.classifySessionDetails != null) {
+ final List<ClassifySessionDetails> details = classifySessionDump.classifySessionDetails;
+ final List<ClassifySessionDetails> filteredSessions = details.stream()
+ .filter(singleDetail -> Arrays.equals(singleDetail.match, match)).collect(Collectors.toList());
+ if (filteredSessions.isEmpty()) {
+ return Optional.absent();
+ } else if (filteredSessions.size() == 1) {
+ return Optional.of(filteredSessions.get(0));
+ } else {
+ throw new IllegalStateException(String.format(
+ "Found %d classify sessions witch given match. Single session expected.",
+ filteredSessions.size()));
+ }
+ }
+ return Optional.absent();
+ }
+
+ @Nonnull
+ @Override
+ public List<ClassifySessionKey> getAllIds(@Nonnull final InstanceIdentifier<ClassifySession> id,
+ @Nonnull final ReadContext ctx) throws ReadFailedException {
+ LOG.debug("Reading list of keys for classify sessions: {}", id);
+
+ final ClassifySessionDetailsReplyDump classifySessionDump = dumpClassifySessions(id, ctx);
+ if (classifySessionDump != null && classifySessionDump.classifySessionDetails != null) {
+ return classifySessionDump.classifySessionDetails.stream()
+ .map(detail -> new ClassifySessionKey(new HexString(printHexBinary(detail.match))))
+ .collect(Collectors.toList());
+ } else {
+ return Collections.emptyList();
+ }
+ }
+}
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vppclassifier/ClassifySessionWriter.java b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vppclassifier/ClassifySessionWriter.java
new file mode 100644
index 000000000..08989ce7d
--- /dev/null
+++ b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vppclassifier/ClassifySessionWriter.java
@@ -0,0 +1,157 @@
+/*
+ * 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.vppclassifier;
+
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkNotNull;
+import static com.google.common.base.Preconditions.checkState;
+import static io.fd.honeycomb.v3po.translate.v3po.util.TranslateUtils.booleanToByte;
+
+import com.google.common.base.Optional;
+import io.fd.honeycomb.v3po.translate.spi.write.ListWriterCustomizer;
+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 io.fd.honeycomb.v3po.translate.v3po.util.WriteTimeoutException;
+import io.fd.honeycomb.v3po.translate.write.WriteContext;
+import io.fd.honeycomb.v3po.translate.write.WriteFailedException;
+import java.util.List;
+import java.util.concurrent.CompletionStage;
+import javax.annotation.Nonnull;
+import javax.xml.bind.DatatypeConverter;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev150603.OpaqueIndex;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev150603.classify.table.attributes.ClassifySession;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev150603.classify.table.attributes.ClassifySessionKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev150603.vpp.classifier.ClassifyTable;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev150603.vpp.classifier.ClassifyTableKey;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.openvpp.jvpp.VppBaseCallException;
+import org.openvpp.jvpp.dto.ClassifyAddDelSession;
+import org.openvpp.jvpp.dto.ClassifyAddDelSessionReply;
+import org.openvpp.jvpp.future.FutureJVpp;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Writer customizer responsible for classify session create/delete.<br> Sends {@code classify_add_del_session} message
+ * to VPP.<br> Equivalent to invoking {@code vppctl classify table} command.
+ */
+public class ClassifySessionWriter extends FutureJVppCustomizer
+ implements ListWriterCustomizer<ClassifySession, ClassifySessionKey> {
+
+ private static final Logger LOG = LoggerFactory.getLogger(ClassifySessionWriter.class);
+ private final NamingContext classifyTableContext;
+
+ public ClassifySessionWriter(@Nonnull final FutureJVpp futureJvpp,
+ @Nonnull final NamingContext classifyTableContext) {
+ super(futureJvpp);
+ this.classifyTableContext = checkNotNull(classifyTableContext, "classifyTableContext should not be null");
+ }
+
+ @Nonnull
+ @Override
+ public Optional<List<ClassifySession>> extract(@Nonnull final InstanceIdentifier<ClassifySession> currentId,
+ @Nonnull final DataObject parentData) {
+ return Optional.fromNullable(((ClassifyTable) parentData).getClassifySession());
+ }
+
+ @Override
+ public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<ClassifySession> id,
+ @Nonnull final ClassifySession dataAfter,
+ @Nonnull final WriteContext writeContext) throws WriteFailedException {
+ LOG.debug("Creating classify session: iid={} dataAfter={}", id, dataAfter);
+ try {
+ classifyAddDelSession(true, id, dataAfter, writeContext);
+ LOG.debug("Successfully created classify session: iid={} dataAfter={}", id, dataAfter);
+ } catch (VppBaseCallException e) {
+ throw new WriteFailedException.CreateFailedException(id, dataAfter, e);
+ }
+ }
+
+ @Override
+ public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<ClassifySession> id,
+ @Nonnull final ClassifySession dataBefore,
+ @Nonnull final ClassifySession dataAfter,
+ @Nonnull final WriteContext writeContext) throws WriteFailedException {
+ throw new UnsupportedOperationException("Classify session update is not supported");
+ }
+
+ @Override
+ public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<ClassifySession> id,
+ @Nonnull final ClassifySession dataBefore,
+ @Nonnull final WriteContext writeContext) throws WriteFailedException {
+ LOG.debug("Removing classify session: iid={} dataBefore={}", id, dataBefore);
+ try {
+ classifyAddDelSession(false, id, dataBefore, writeContext);
+ LOG.debug("Successfully removed classify session: iid={} dataBefore={}", id, dataBefore);
+ } catch (VppBaseCallException e) {
+ throw new WriteFailedException.DeleteFailedException(id, e);
+ }
+ }
+
+ private void classifyAddDelSession(final boolean isAdd, @Nonnull final InstanceIdentifier<ClassifySession> id,
+ @Nonnull final ClassifySession classifySession,
+ @Nonnull final WriteContext writeContext)
+ throws VppBaseCallException, WriteTimeoutException {
+ final ClassifyTableKey tableKey = id.firstKeyOf(ClassifyTable.class);
+ checkArgument(tableKey != null, "could not find classify table key in {}", id);
+
+ final String tableName = tableKey.getName();
+ checkState(classifyTableContext.containsIndex(tableName, writeContext.getMappingContext()),
+ "Could not find classify table index for {} in the classify table context", tableName);
+ final int tableIndex = classifyTableContext.getIndex(tableName, writeContext.getMappingContext());
+
+ final CompletionStage<ClassifyAddDelSessionReply> createClassifyTableReplyCompletionStage = getFutureJVpp()
+ .classifyAddDelSession(
+ getClassifyAddDelSessionRequest(isAdd, tableIndex, classifySession));
+
+ TranslateUtils.getReplyForWrite(createClassifyTableReplyCompletionStage.toCompletableFuture(), id);
+ }
+
+ private static ClassifyAddDelSession getClassifyAddDelSessionRequest(final boolean isAdd, final int tableIndex,
+ @Nonnull final ClassifySession classifySession) {
+ ClassifyAddDelSession request = new ClassifyAddDelSession();
+ request.isAdd = booleanToByte(isAdd);
+ request.tableIndex = tableIndex;
+
+ // mandatory:
+ // TODO implement node name to index conversion after https://jira.fd.io/browse/VPP-203 is fixed
+ request.hitNextIndex = classifySession.getHitNextIndex().getPacketHandlingAction().getIntValue();
+
+ if (classifySession.getOpaqueIndex() != null) {
+ request.opaqueIndex = getOpaqueIndexValue(classifySession.getOpaqueIndex());
+ } else {
+ request.opaqueIndex = ~0; // value not specified
+ }
+
+ // default 0:
+ request.advance = classifySession.getAdvance();
+
+ request.match = DatatypeConverter.parseHexBinary(classifySession.getMatch().getValue().replace(":", ""));
+ return request;
+ }
+
+ private static int getOpaqueIndexValue(@Nonnull final OpaqueIndex opaqueIndex) {
+ if (opaqueIndex.getUint32() != null) {
+ return opaqueIndex.getUint32().intValue();
+ } else {
+ // TODO: implement node name to index conversion after https://jira.fd.io/browse/VPP-203 is fixed
+ return opaqueIndex.getVppNode().getPacketHandlingAction().getIntValue();
+ }
+ }
+}
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vppclassifier/ClassifyTableReader.java b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vppclassifier/ClassifyTableReader.java
new file mode 100644
index 000000000..7f877ca49
--- /dev/null
+++ b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vppclassifier/ClassifyTableReader.java
@@ -0,0 +1,147 @@
+/*
+ * 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.vppclassifier;
+
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkNotNull;
+import static io.fd.honeycomb.v3po.translate.v3po.interfacesstate.InterfaceUtils.printHexBinary;
+
+import com.google.common.primitives.UnsignedInts;
+import io.fd.honeycomb.v3po.translate.read.ReadContext;
+import io.fd.honeycomb.v3po.translate.read.ReadFailedException;
+import io.fd.honeycomb.v3po.translate.spi.read.ListReaderCustomizer;
+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.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.rev150603.VppClassifierBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev150603.vpp.classifier.ClassifyTable;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev150603.vpp.classifier.ClassifyTableBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev150603.vpp.classifier.ClassifyTableKey;
+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.ClassifyTableIds;
+import org.openvpp.jvpp.dto.ClassifyTableIdsReply;
+import org.openvpp.jvpp.dto.ClassifyTableInfo;
+import org.openvpp.jvpp.dto.ClassifyTableInfoReply;
+import org.openvpp.jvpp.future.FutureJVpp;
+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 ListReaderCustomizer<ClassifyTable, ClassifyTableKey, ClassifyTableBuilder>, VppNodeReader {
+
+ private static final Logger LOG = LoggerFactory.getLogger(ClassifyTableReader.class);
+ private final NamingContext classifyTableContext;
+
+ public ClassifyTableReader(@Nonnull final FutureJVpp futureJvpp,
+ @Nonnull final NamingContext classifyTableContext) {
+ super(futureJvpp);
+ this.classifyTableContext = checkNotNull(classifyTableContext, "classifyTableContext should not be null");
+ }
+
+
+ @Override
+ public void merge(@Nonnull final Builder<? extends DataObject> builder,
+ @Nonnull final List<ClassifyTable> readData) {
+ ((VppClassifierBuilder) 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);
+ checkArgument(key != null, "could not find ClassifyTable key in {}", id);
+ final ClassifyTableInfo request = new ClassifyTableInfo();
+
+ final String tableName = key.getName();
+ if (!classifyTableContext.containsIndex(tableName, ctx.getMappingContext())) {
+ LOG.debug("Could not find classify table {} in the naming context", tableName);
+ return;
+ }
+ request.tableId = classifyTableContext.getIndex(tableName, ctx.getMappingContext());
+
+ try {
+ final ClassifyTableInfoReply reply =
+ TranslateUtils.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));
+
+
+ builder.setMissNextIndex(readVppNode(reply.missNextIndex, LOG));
+ 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.getName(reply.nextTableIndex, ctx.getMappingContext()));
+ }
+
+ if (LOG.isTraceEnabled()) {
+ LOG.trace("Attributes for classify table {} successfully read: {}", id, builder.build());
+ }
+ } catch (VppBaseCallException e) {
+ throw new ReadFailedException(id, e);
+ }
+ }
+
+ @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);
+ try {
+ final ClassifyTableIdsReply classifyTableIdsReply = TranslateUtils
+ .getReplyForRead(getFutureJVpp().classifyTableIds(new ClassifyTableIds()).toCompletableFuture(), id);
+ if (classifyTableIdsReply.ids != null) {
+ return Arrays.stream(classifyTableIdsReply.ids).mapToObj(i -> {
+ final String tableName = classifyTableContext.getName(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();
+ }
+ } catch (VppBaseCallException e) {
+ throw new ReadFailedException(id, e);
+ }
+ }
+}
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vppclassifier/ClassifyTableWriter.java b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vppclassifier/ClassifyTableWriter.java
new file mode 100644
index 000000000..4f59ffe8e
--- /dev/null
+++ b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vppclassifier/ClassifyTableWriter.java
@@ -0,0 +1,158 @@
+/*
+ * 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.vppclassifier;
+
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkNotNull;
+import static com.google.common.base.Preconditions.checkState;
+import static io.fd.honeycomb.v3po.translate.v3po.util.TranslateUtils.booleanToByte;
+
+import com.google.common.base.Optional;
+import io.fd.honeycomb.v3po.translate.MappingContext;
+import io.fd.honeycomb.v3po.translate.spi.write.ListWriterCustomizer;
+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 io.fd.honeycomb.v3po.translate.v3po.util.WriteTimeoutException;
+import io.fd.honeycomb.v3po.translate.write.WriteContext;
+import io.fd.honeycomb.v3po.translate.write.WriteFailedException;
+import java.util.List;
+import java.util.concurrent.CompletionStage;
+import javax.annotation.Nonnull;
+import javax.xml.bind.DatatypeConverter;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev150603.VppClassifier;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev150603.vpp.classifier.ClassifyTable;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev150603.vpp.classifier.ClassifyTableKey;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.openvpp.jvpp.VppBaseCallException;
+import org.openvpp.jvpp.dto.ClassifyAddDelTable;
+import org.openvpp.jvpp.dto.ClassifyAddDelTableReply;
+import org.openvpp.jvpp.future.FutureJVpp;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Writer customizer responsible for classify table create/delete. <br> Sends {@code classify_add_del_table} message to
+ * VPP.<br> Equivalent to invoking {@code vppctl classify table} command.
+ */
+public class ClassifyTableWriter extends FutureJVppCustomizer
+ implements ListWriterCustomizer<ClassifyTable, ClassifyTableKey> {
+
+ private static final Logger LOG = LoggerFactory.getLogger(ClassifyTableWriter.class);
+ private final NamingContext classifyTableContext;
+
+ public ClassifyTableWriter(@Nonnull final FutureJVpp futureJvpp,
+ @Nonnull final NamingContext classifyTableContext) {
+ super(futureJvpp);
+ this.classifyTableContext = checkNotNull(classifyTableContext, "classifyTableContext should not be null");
+ }
+
+ @Nonnull
+ @Override
+ public Optional<List<ClassifyTable>> extract(@Nonnull final InstanceIdentifier<ClassifyTable> currentId,
+ @Nonnull final DataObject parentData) {
+ return Optional.fromNullable(((VppClassifier) parentData).getClassifyTable());
+ }
+
+ @Override
+ public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<ClassifyTable> id,
+ @Nonnull final ClassifyTable dataAfter, @Nonnull final WriteContext writeContext)
+ throws WriteFailedException {
+ LOG.debug("Creating classify table: iid={} dataAfter={}", id, dataAfter);
+ try {
+ final int newTableIndex =
+ classifyAddDelTable(true, id, dataAfter, ~0 /* value not present */, writeContext.getMappingContext());
+
+ // Add classify table name <-> vpp index mapping to the naming context:
+ classifyTableContext.addName(newTableIndex, dataAfter.getName(), writeContext.getMappingContext());
+ LOG.debug("Successfully created classify table(id={]): iid={} dataAfter={}", newTableIndex, id, dataAfter);
+ } catch (VppBaseCallException e) {
+ throw new WriteFailedException.CreateFailedException(id, dataAfter, e);
+ }
+ }
+
+ @Override
+ public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<ClassifyTable> id,
+ @Nonnull final ClassifyTable dataBefore, @Nonnull final ClassifyTable dataAfter,
+ @Nonnull final WriteContext writeContext) throws WriteFailedException {
+ LOG.warn("ClassifyTable update is not supported, ignoring configuration {}", dataAfter);
+ // TODO if only leaves were updated (but not child/aug nodes), we should throw exception to deny config change
+ }
+
+ @Override
+ public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<ClassifyTable> id,
+ @Nonnull final ClassifyTable dataBefore,
+ @Nonnull final WriteContext writeContext) throws WriteFailedException {
+ LOG.debug("Removing classify table: iid={} dataBefore={}", id, dataBefore);
+ final String tableName = dataBefore.getName();
+ checkState(classifyTableContext.containsIndex(tableName, writeContext.getMappingContext()),
+ "Removing classify table {}, but index could not be found in the classify table context", tableName);
+
+ final int tableIndex = classifyTableContext.getIndex(tableName, writeContext.getMappingContext());
+ try {
+ classifyAddDelTable(false, id, dataBefore, tableIndex, writeContext.getMappingContext());
+
+ // Remove deleted interface from interface context:
+ classifyTableContext.removeName(dataBefore.getName(), writeContext.getMappingContext());
+ LOG.debug("Successfully removed classify table(id={]): iid={} dataAfter={}", tableIndex, id, dataBefore);
+ } catch (VppBaseCallException e) {
+ throw new WriteFailedException.DeleteFailedException(id, e);
+ }
+ }
+
+ private int classifyAddDelTable(final boolean isAdd, @Nonnull final InstanceIdentifier<ClassifyTable> id,
+ @Nonnull final ClassifyTable table, final int tableId, final MappingContext ctx)
+ throws VppBaseCallException, WriteTimeoutException {
+ final CompletionStage<ClassifyAddDelTableReply> createClassifyTableReplyCompletionStage =
+ getFutureJVpp().classifyAddDelTable(getClassifyAddDelTableRequest(isAdd, tableId, table, ctx));
+
+ final ClassifyAddDelTableReply reply =
+ TranslateUtils.getReplyForWrite(createClassifyTableReplyCompletionStage.toCompletableFuture(), id);
+ return reply.newTableIndex;
+
+ }
+
+ private ClassifyAddDelTable getClassifyAddDelTableRequest(final boolean isAdd, final int tableIndex,
+ @Nonnull final ClassifyTable table,
+ @Nonnull final MappingContext ctx) {
+ final ClassifyAddDelTable request = new ClassifyAddDelTable();
+ request.isAdd = booleanToByte(isAdd);
+ request.tableIndex = tableIndex;
+
+ // mandatory, all u32 values are permitted:
+ request.nbuckets = table.getNbuckets().intValue();
+ request.memorySize = table.getMemorySize().intValue();
+ request.skipNVectors = table.getSkipNVectors().intValue();
+
+ // mandatory
+ // TODO implement node name to index conversion after https://jira.fd.io/browse/VPP-203 is fixed
+ request.missNextIndex = table.getMissNextIndex().getPacketHandlingAction().getIntValue();
+
+ final String nextTable = table.getNextTable();
+ if (nextTable != null) {
+ request.nextTableIndex = classifyTableContext.getIndex(nextTable, ctx);
+ } else {
+ request.nextTableIndex = ~0; // value not specified
+ }
+ request.mask = DatatypeConverter.parseHexBinary(table.getMask().getValue().replace(":", ""));
+ checkArgument(request.mask.length % 16 == 0, "Number of mask bytes must be multiple of 16.");
+ request.matchNVectors = request.mask.length / 16;
+
+ return request;
+ }
+} \ No newline at end of file
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vppclassifier/VppNodeReader.java b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vppclassifier/VppNodeReader.java
new file mode 100644
index 000000000..aa8b4f9f3
--- /dev/null
+++ b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vppclassifier/VppNodeReader.java
@@ -0,0 +1,41 @@
+/*
+ * 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.vppclassifier;
+
+import javax.annotation.Nonnull;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev150603.PacketHandlingAction;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev150603.VppNode;
+import org.slf4j.Logger;
+
+interface VppNodeReader {
+
+ /**
+ * Converts vpp node index to YANG representation of vpp node.
+ *
+ * @param nodeIndex index of vpp node treated as signed integer.
+ * @return vpp node representation
+ */
+ default VppNode readVppNode(final int nodeIndex, @Nonnull final Logger log) {
+ final PacketHandlingAction action = PacketHandlingAction.forValue(nodeIndex);
+ if (action == null) {
+ // TODO: implement node index to name conversion after https://jira.fd.io/browse/VPP-203 is fixed
+ log.debug("VPP node index {} cannot be mapped to PacketHandlingAction", nodeIndex);
+ return null;
+ }
+ return new VppNode(action);
+ }
+}