diff options
author | Jan Srnicek <jsrnicek@cisco.com> | 2017-03-08 14:01:34 +0100 |
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committer | Marek Gradzki <mgradzki@cisco.com> | 2017-03-09 07:09:36 +0000 |
commit | bf1d5db448edc1ae352960f14bca9ccb41612186 (patch) | |
tree | cdf6f5feebf650050bde23ffe7a9a2f8d6389a94 /vpp-classifier/impl/src/main/java/io/fd/hc2vpp/vpp/classifier/write/ClassifySessionWriter.java | |
parent | 6532b1524bb841cac2b559415b85ac6e9d2ff934 (diff) |
HC2VPP-7 - split vpp-classifiers to separate module
Split vpp-classifiers and vpp-classifiers acls' to separate modules.
Contains TODO's for future change of dependencies
Change-Id: I94f92ce2ec8960c67bd406f085f2fe928079ee23
Signed-off-by: Jan Srnicek <jsrnicek@cisco.com>
Diffstat (limited to 'vpp-classifier/impl/src/main/java/io/fd/hc2vpp/vpp/classifier/write/ClassifySessionWriter.java')
-rw-r--r-- | vpp-classifier/impl/src/main/java/io/fd/hc2vpp/vpp/classifier/write/ClassifySessionWriter.java | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/vpp-classifier/impl/src/main/java/io/fd/hc2vpp/vpp/classifier/write/ClassifySessionWriter.java b/vpp-classifier/impl/src/main/java/io/fd/hc2vpp/vpp/classifier/write/ClassifySessionWriter.java new file mode 100644 index 000000000..00e858955 --- /dev/null +++ b/vpp-classifier/impl/src/main/java/io/fd/hc2vpp/vpp/classifier/write/ClassifySessionWriter.java @@ -0,0 +1,165 @@ +/* + * 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.write; + +import static com.google.common.base.Preconditions.checkNotNull; + +import com.google.common.base.Optional; +import com.google.common.base.Preconditions; +import io.fd.hc2vpp.common.translate.util.ByteDataTranslator; +import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer; +import io.fd.hc2vpp.vpp.classifier.context.VppClassifierContextManager; +import io.fd.honeycomb.translate.MappingContext; +import io.fd.honeycomb.translate.spi.write.ListWriterCustomizer; +import io.fd.honeycomb.translate.write.WriteContext; +import io.fd.honeycomb.translate.write.WriteFailedException; +import io.fd.vpp.jvpp.VppBaseCallException; +import io.fd.vpp.jvpp.core.dto.ClassifyAddDelSession; +import io.fd.vpp.jvpp.core.dto.ClassifyAddDelSessionReply; +import io.fd.vpp.jvpp.core.future.FutureJVppCore; +import java.util.concurrent.CompletionStage; +import javax.annotation.Nonnull; +import javax.annotation.Nullable; +import javax.xml.bind.DatatypeConverter; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev161214.OpaqueIndex; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev161214.classify.table.base.attributes.ClassifySession; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev161214.classify.table.base.attributes.ClassifySessionKey; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev161214.vpp.classifier.ClassifyTable; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.rev161214.vpp.classifier.ClassifyTableKey; +import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; +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 VppNodeWriter + implements ListWriterCustomizer<ClassifySession, ClassifySessionKey>, ByteDataTranslator, JvppReplyConsumer { + + private static final Logger LOG = LoggerFactory.getLogger(ClassifySessionWriter.class); + private final VppClassifierContextManager classifyTableContext; + + public ClassifySessionWriter(@Nonnull final FutureJVppCore futureJVppCore, + @Nonnull final VppClassifierContextManager classifyTableContext) { + super(futureJVppCore); + this.classifyTableContext = checkNotNull(classifyTableContext, "classifyTableContext should not be null"); + } + + @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, WriteFailedException { + final ClassifyTableKey tableKey = id.firstKeyOf(ClassifyTable.class); + Preconditions.checkArgument(tableKey != null, "could not find classify table key in {}", id); + + final String tableName = tableKey.getName(); + Preconditions.checkState(classifyTableContext.containsTable(tableName, writeContext.getMappingContext()), + "Could not find classify table index for {} in the classify table context", tableName); + final int tableIndex = classifyTableContext.getTableIndex(tableName, writeContext.getMappingContext()); + + final ClassifyTable classifyTable = + getClassifyTable(writeContext, id.firstIdentifierOf(ClassifyTable.class), isAdd); + final int hitNextIndex = getNodeIndex(classifySession.getHitNext(), classifyTable, classifyTableContext, + writeContext.getMappingContext(), id); + final int opaqueIndex = + getOpaqueIndex(classifySession.getOpaqueIndex(), classifyTable, writeContext.getMappingContext(), id); + + final CompletionStage<ClassifyAddDelSessionReply> createClassifyTableReplyCompletionStage = getFutureJVpp() + .classifyAddDelSession( + getClassifyAddDelSessionRequest(isAdd, classifySession, tableIndex, hitNextIndex, opaqueIndex)); + + getReplyForWrite(createClassifyTableReplyCompletionStage.toCompletableFuture(), id); + } + + private ClassifyTable getClassifyTable(final WriteContext writeContext, + @Nonnull final InstanceIdentifier<ClassifyTable> id, + final boolean isAdd) { + final Optional<ClassifyTable> classifyTable; + if (isAdd) { + classifyTable = writeContext.readAfter(id); + } else { + classifyTable = writeContext.readBefore(id); + } + return classifyTable.get(); + } + + private ClassifyAddDelSession getClassifyAddDelSessionRequest(final boolean isAdd, + @Nonnull final ClassifySession classifySession, + final int tableIndex, + final int hitNextIndex, + final int opaqueIndex) { + ClassifyAddDelSession request = new ClassifyAddDelSession(); + request.isAdd = booleanToByte(isAdd); + request.tableIndex = tableIndex; + request.hitNextIndex = hitNextIndex; + request.opaqueIndex = opaqueIndex; + + // default 0: + request.advance = classifySession.getAdvance(); + + request.match = DatatypeConverter.parseHexBinary(classifySession.getMatch().getValue().replace(":", "")); + return request; + } + + private int getOpaqueIndex(@Nullable final OpaqueIndex opaqueIndex, final ClassifyTable classifyTable, + final MappingContext ctx, final InstanceIdentifier<ClassifySession> id) + throws VppBaseCallException, WriteFailedException { + if (opaqueIndex == null) { + return ~0; // value not specified + } + if (opaqueIndex.getUint32() != null) { + return opaqueIndex.getUint32().intValue(); + } else { + return getNodeIndex(opaqueIndex.getVppNode(), classifyTable, classifyTableContext, ctx, id); + } + } +} |