1 files changed, 157 insertions, 0 deletions
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();
+        }
+    }
+}