HONEYCOMB-125: write support for ARP termination table

Change-Id: I231edbf27f83401d4f6d20a2b5acaf4b7a36b984
Signed-off-by: Marek Gradzki <mgradzki@cisco.com>

1 files changed, 131 insertions, 0 deletions

diff --git a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/vpp/ArpTerminationTableEntryCustomizer.java b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/vpp/ArpTerminationTableEntryCustomizer.java
new file mode 100644
index 000000000..d59c2bfa2
--- /dev/null
+++ b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/vpp/ArpTerminationTableEntryCustomizer.java
@@ -0,0 +1,131 @@
+/*
+ * 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.translate.v3po.vpp;
+
+import static io.fd.honeycomb.translate.v3po.util.TranslateUtils.booleanToByte;
+
+import com.google.common.base.Preconditions;
+import io.fd.honeycomb.translate.spi.write.ListWriterCustomizer;
+import io.fd.honeycomb.translate.v3po.util.FutureJVppCustomizer;
+import io.fd.honeycomb.translate.v3po.util.NamingContext;
+import io.fd.honeycomb.translate.v3po.util.TranslateUtils;
+import io.fd.honeycomb.translate.v3po.util.WriteTimeoutException;
+import io.fd.honeycomb.translate.write.WriteContext;
+import io.fd.honeycomb.translate.write.WriteFailedException;
+import java.util.concurrent.CompletionStage;
+import javax.annotation.Nonnull;
+import org.apache.commons.lang3.builder.ReflectionToStringBuilder;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4AddressNoZone;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.bridge.domain.attributes.arp.termination.table.ArpTerminationTableEntry;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.bridge.domain.attributes.arp.termination.table.ArpTerminationTableEntryKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.vpp.bridge.domains.BridgeDomain;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.openvpp.jvpp.VppBaseCallException;
+import org.openvpp.jvpp.dto.BdIpMacAddDel;
+import org.openvpp.jvpp.dto.BdIpMacAddDelReply;
+import org.openvpp.jvpp.future.FutureJVpp;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Writer Customizer responsible for ARP termination table management.<br> Sends {@code bd_ip_mac_add_del} message to
+ * VPP.<br> Equivalent of invoking {@code vppctl set bridge-domain arp term} command.
+ */
+public class ArpTerminationTableEntryCustomizer extends FutureJVppCustomizer
+    implements ListWriterCustomizer<ArpTerminationTableEntry, ArpTerminationTableEntryKey> {
+
+    private static final Logger LOG = LoggerFactory.getLogger(ArpTerminationTableEntryCustomizer.class);
+
+    private final NamingContext bdContext;
+
+    public ArpTerminationTableEntryCustomizer(@Nonnull final FutureJVpp futureJvpp,
+                                              @Nonnull final NamingContext bdContext) {
+        super(futureJvpp);
+        this.bdContext = Preconditions.checkNotNull(bdContext, "bdContext should not be null");
+    }
+
+    @Override
+    public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<ArpTerminationTableEntry> id,
+                                       @Nonnull final ArpTerminationTableEntry dataAfter,
+                                       @Nonnull final WriteContext writeContext)
+        throws WriteFailedException {
+        try {
+            LOG.debug("Creating ARP termination table entry: {} {}", id, dataAfter);
+            bdIpMacAddDel(id, dataAfter, writeContext, true);
+            LOG.debug("L2 ARP termination table entry created successfully: {} {}", id, dataAfter);
+        } catch (VppBaseCallException e) {
+            LOG.warn("Failed to create ARP termination table entry: {} {}", id, dataAfter);
+            throw new WriteFailedException.CreateFailedException(id, dataAfter, e);
+        }
+    }
+
+    @Override
+    public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<ArpTerminationTableEntry> id,
+                                        @Nonnull final ArpTerminationTableEntry dataBefore,
+                                        @Nonnull final ArpTerminationTableEntry dataAfter,
+                                        @Nonnull final WriteContext writeContext) throws WriteFailedException {
+        throw new UnsupportedOperationException(
+            "ARP termination table entry update is not supported. It has to be deleted and then created.");
+    }
+
+    @Override
+    public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<ArpTerminationTableEntry> id,
+                                        @Nonnull final ArpTerminationTableEntry dataBefore,
+                                        @Nonnull final WriteContext writeContext)
+        throws WriteFailedException {
+        try {
+            LOG.debug("Deleting ARP termination table entry entry: {} {}", id, dataBefore);
+            bdIpMacAddDel(id, dataBefore, writeContext, false);
+            LOG.debug("ARP termination table entry deleted successfully: {} {}", id, dataBefore);
+        } catch (VppBaseCallException e) {
+            LOG.warn("Failed to delete ARP termination table entry: {} {}", id, dataBefore);
+            throw new WriteFailedException.DeleteFailedException(id, e);
+        }
+    }
+
+    private void bdIpMacAddDel(@Nonnull final InstanceIdentifier<ArpTerminationTableEntry> id,
+                               @Nonnull final ArpTerminationTableEntry entry,
+                               final WriteContext writeContext, boolean isAdd)
+        throws VppBaseCallException, WriteTimeoutException {
+        final String bdName = id.firstKeyOf(BridgeDomain.class).getName();
+        final int bdId = bdContext.getIndex(bdName, writeContext.getMappingContext());
+
+        final BdIpMacAddDel request = createRequest(entry, bdId, isAdd);
+        LOG.debug("Sending l2FibAddDel request: {}", ReflectionToStringBuilder.toString(request));
+        final CompletionStage<BdIpMacAddDelReply> replyCompletionStage =
+            getFutureJVpp().bdIpMacAddDel(request);
+
+        TranslateUtils.getReplyForWrite(replyCompletionStage.toCompletableFuture(), id);
+    }
+
+    private BdIpMacAddDel createRequest(final ArpTerminationTableEntry entry, final int bdId, boolean isAdd) {
+        final BdIpMacAddDel request = new BdIpMacAddDel();
+        request.bdId = bdId;
+        request.isAdd = booleanToByte(isAdd);
+        request.macAddress = TranslateUtils.parseMac(entry.getPhysAddress().getValue());
+
+        final IpAddress ipAddress = entry.getIpAddress();
+        if (ipAddress.getIpv6Address() != null) {
+            // FIXME: vpp does not support ipv6 in arp-termination table (based on analysis of l2_bd.c)
+            throw new UnsupportedOperationException("IPv6 address for ARP termination table is not supported yet");
+        }
+
+        request.ipAddress = TranslateUtils.ipv4AddressNoZoneToArray(new Ipv4AddressNoZone(ipAddress.getIpv4Address()));
+        return request;
+    }
+}