HONEYCOMB-91: write customizer for L2FibEntry

Change-Id: I80353d9468924df755b7dfe2fca33515becdb8b5
Signed-off-by: Marek Gradzki <mgradzki@cisco.com>

1 files changed, 150 insertions, 0 deletions

diff --git a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vpp/L2FibEntryCustomizer.java b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vpp/L2FibEntryCustomizer.java
new file mode 100644
index 000000000..712938190
--- /dev/null
+++ b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/vpp/L2FibEntryCustomizer.java
@@ -0,0 +1,150 @@
+/*
+ * 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.vpp;
+
+import static io.fd.honeycomb.v3po.translate.v3po.util.TranslateUtils.booleanToByte;
+import static io.fd.honeycomb.v3po.translate.v3po.util.TranslateUtils.parseMac;
+
+import com.google.common.base.Optional;
+import com.google.common.base.Preconditions;
+import com.google.common.primitives.Longs;
+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.write.WriteContext;
+import io.fd.honeycomb.v3po.translate.write.WriteFailedException;
+import java.util.List;
+import java.util.concurrent.CompletionStage;
+import javax.annotation.Nonnull;
+import org.apache.commons.lang3.builder.ReflectionToStringBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.L2FibFilter;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.l2.fib.attributes.L2FibTable;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.l2.fib.attributes.l2.fib.table.L2FibEntry;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.l2.fib.attributes.l2.fib.table.L2FibEntryKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.vpp.bridge.domains.BridgeDomain;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.openvpp.jvpp.VppBaseCallException;
+import org.openvpp.jvpp.dto.L2FibAddDel;
+import org.openvpp.jvpp.dto.L2FibAddDelReply;
+import org.openvpp.jvpp.future.FutureJVpp;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Writer Customizer responsible for L2 FIB create/delete operations.<br> Sends {@code l2_fib_add_del} message to
+ * VPP.<br> Equivalent of invoking {@code vppctl l2fib add/del} command.
+ */
+public class L2FibEntryCustomizer extends FutureJVppCustomizer
+        implements ListWriterCustomizer<L2FibEntry, L2FibEntryKey> {
+
+    private static final Logger LOG = LoggerFactory.getLogger(L2FibEntryCustomizer.class);
+
+    private final NamingContext bdContext;
+    private final NamingContext interfaceContext;
+
+    public L2FibEntryCustomizer(@Nonnull final FutureJVpp futureJvpp, @Nonnull final NamingContext bdContext,
+                                @Nonnull final NamingContext interfaceContext) {
+        super(futureJvpp);
+        this.bdContext = Preconditions.checkNotNull(bdContext, "bdContext should not be null");
+        this.interfaceContext = Preconditions.checkNotNull(interfaceContext, "interfaceContext should not be null");
+    }
+
+    @Nonnull
+    @Override
+    public Optional<List<L2FibEntry>> extract(@Nonnull final InstanceIdentifier<L2FibEntry> currentId,
+                                              @Nonnull final DataObject parentData) {
+        return Optional.fromNullable(((L2FibTable) parentData).getL2FibEntry());
+    }
+
+    @Override
+    public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<L2FibEntry> id,
+                                       @Nonnull final L2FibEntry dataAfter, @Nonnull final WriteContext writeContext)
+            throws WriteFailedException.CreateFailedException {
+        try {
+            LOG.debug("Creating L2 FIB entry: {} {}", id, dataAfter);
+            l2FibAddDel(id, dataAfter, writeContext, true);
+            LOG.debug("L2 FIB entry created successfully: {} {}", id, dataAfter);
+        } catch (VppBaseCallException e) {
+            LOG.warn("Failed to create L2 FIB entry: {} {}", id, dataAfter);
+            throw new WriteFailedException.CreateFailedException(id, dataAfter, e);
+        }
+    }
+
+    @Override
+    public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<L2FibEntry> id,
+                                        @Nonnull final L2FibEntry dataBefore, @Nonnull final L2FibEntry dataAfter,
+                                        @Nonnull final WriteContext writeContext) throws WriteFailedException {
+        throw new UnsupportedOperationException(
+                "L2 FIB entry update is not supported. It has to be deleted and then created.");
+    }
+
+    @Override
+    public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<L2FibEntry> id,
+                                        @Nonnull final L2FibEntry dataBefore, @Nonnull final WriteContext writeContext)
+            throws WriteFailedException.DeleteFailedException {
+        try {
+            LOG.debug("Deleting L2 FIB entry: {} {}", id, dataBefore);
+            l2FibAddDel(id, dataBefore, writeContext, false);
+            LOG.debug("L2 FIB entry deleted successfully: {} {}", id, dataBefore);
+        } catch (VppBaseCallException e) {
+            LOG.warn("Failed to delete L2 FIB entry: {} {}", id, dataBefore);
+            throw new WriteFailedException.DeleteFailedException(id, e);
+        }
+    }
+
+    private void l2FibAddDel(@Nonnull final InstanceIdentifier<L2FibEntry> id, @Nonnull final L2FibEntry entry,
+                             final WriteContext writeContext, boolean isAdd) throws VppBaseCallException {
+        final String bdName = id.firstKeyOf(BridgeDomain.class).getName();
+        final int bdId = bdContext.getIndex(bdName, writeContext.getMappingContext());
+
+        int swIfIndex = -1;
+        final String swIfName = entry.getOutgoingInterface();
+        if (swIfName != null) {
+            swIfIndex = interfaceContext.getIndex(swIfName, writeContext.getMappingContext());
+        }
+
+        final L2FibAddDel l2FibRequest = createL2FibRequest(entry, bdId, swIfIndex, isAdd);
+        LOG.debug("Sending l2FibAddDel request: {}", ReflectionToStringBuilder.toString(l2FibRequest));
+        final CompletionStage<L2FibAddDelReply> l2FibAddDelReplyCompletionStage =
+                getFutureJVpp().l2FibAddDel(l2FibRequest);
+
+        TranslateUtils.getReply(l2FibAddDelReplyCompletionStage.toCompletableFuture());
+    }
+
+    private L2FibAddDel createL2FibRequest(final L2FibEntry entry, final int bdId, final int swIfIndex, boolean isAdd) {
+        final L2FibAddDel request = new L2FibAddDel();
+        request.mac = macToLong(entry.getPhysAddress().getValue());
+        request.bdId = bdId;
+        request.swIfIndex = swIfIndex;
+        request.isAdd = booleanToByte(isAdd);
+        if (isAdd) {
+            request.staticMac = booleanToByte(entry.isStaticConfig());
+            request.filterMac = booleanToByte(L2FibFilter.class == entry.getAction());
+        }
+        return request;
+    }
+
+    // mac address is string of the form: 11:22:33:44:55:66
+    // but VPP expects long value in the format 11:22:33:44:55:66:XX:XX
+    private static long macToLong(final String macAddress) {
+        final byte[] mac = parseMac(macAddress);
+        return Longs.fromBytes(mac[0], mac[1], mac[2], mac[3],
+                mac[4], mac[5], (byte) 0, (byte) 0);
+    }
+}