1 files changed, 135 insertions, 0 deletions
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/write/RewriteCustomizer.java b/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/write/RewriteCustomizer.java
new file mode 100644
index 000000000..15eb7b0b4
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+++ b/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/write/RewriteCustomizer.java
@@ -0,0 +1,135 @@
+/*
+ * 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.hc2vpp.v3po.write;
+
+import io.fd.hc2vpp.common.translate.util.ByteDataTranslator;
+import io.fd.hc2vpp.common.translate.util.FutureJVppCustomizer;
+import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer;
+import io.fd.hc2vpp.common.translate.util.NamingContext;
+import io.fd.hc2vpp.common.translate.util.TagRewriteOperation;
+import io.fd.hc2vpp.v3po.util.SubInterfaceUtils;
+import io.fd.honeycomb.translate.spi.write.WriterCustomizer;
+import io.fd.honeycomb.translate.write.WriteContext;
+import io.fd.honeycomb.translate.write.WriteFailedException;
+import io.fd.jvpp.core.dto.L2InterfaceVlanTagRewrite;
+import io.fd.jvpp.core.dto.L2InterfaceVlanTagRewriteReply;
+import io.fd.jvpp.core.future.FutureJVppCore;
+import java.util.List;
+import java.util.concurrent.CompletionStage;
+import javax.annotation.Nonnull;
+import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319._802dot1q;
+import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.interfaces._interface.sub.interfaces.SubInterface;
+import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.rewrite.attributes.Rewrite;
+import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.rewrite.attributes.RewriteBuilder;
+import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.tag.rewrite.PushTags;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev180220.interfaces.Interface;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Writer Customizer responsible for vlan tag rewrite.<br> Sends {@code l2_interface_vlan_tag_rewrite} message to
+ * VPP.<br> Equivalent of invoking {@code vppctl set interface l2 tag-rewrite} command.
+ */
+public class RewriteCustomizer extends FutureJVppCustomizer
+        implements WriterCustomizer<Rewrite>, ByteDataTranslator, JvppReplyConsumer {
+
+    private static final Logger LOG = LoggerFactory.getLogger(RewriteCustomizer.class);
+    private final NamingContext interfaceContext;
+
+    public RewriteCustomizer(@Nonnull final FutureJVppCore futureJVppCore,
+                             @Nonnull final NamingContext interfaceContext) {
+        super(futureJVppCore);
+        this.interfaceContext = interfaceContext;
+    }
+
+    @Override
+    public void writeCurrentAttributes(final InstanceIdentifier<Rewrite> id, final Rewrite dataAfter,
+                                       final WriteContext writeContext)
+            throws WriteFailedException {
+        final String subifName = getSubInterfaceName(id);
+        setTagRewrite(id, subifName, dataAfter, writeContext);
+    }
+
+    private static String getSubInterfaceName(final InstanceIdentifier<Rewrite> id) {
+        return SubInterfaceUtils.getSubInterfaceName(id.firstKeyOf(Interface.class).getName(),
+                Math.toIntExact(id.firstKeyOf(SubInterface.class).getIdentifier()));
+    }
+
+    private void setTagRewrite(final InstanceIdentifier<Rewrite> id, final String ifname, final Rewrite rewrite,
+                               final WriteContext writeContext) throws WriteFailedException {
+        final int swIfIndex = interfaceContext.getIndex(ifname, writeContext.getMappingContext());
+        LOG.debug("Setting tag rewrite for interface {}(id=): {}", ifname, swIfIndex, rewrite);
+
+        final CompletionStage<L2InterfaceVlanTagRewriteReply> replyCompletionStage =
+                getFutureJVpp().l2InterfaceVlanTagRewrite(getTagRewriteRequest(swIfIndex, rewrite));
+
+        getReplyForWrite(replyCompletionStage.toCompletableFuture(), id);
+        LOG.debug("Tag rewrite for interface {}(id=) set successfully: {}", ifname, swIfIndex, rewrite);
+    }
+
+    private L2InterfaceVlanTagRewrite getTagRewriteRequest(final int swIfIndex, final Rewrite rewrite) {
+        final L2InterfaceVlanTagRewrite request = new L2InterfaceVlanTagRewrite();
+        request.swIfIndex = swIfIndex;
+        request.pushDot1Q = booleanToByte(_802dot1q.class == rewrite.getVlanType());
+
+        final List<PushTags> pushTags = rewrite.getPushTags();
+        final Short popTags = rewrite.getPopTags();
+
+        final int numberOfTagsToPop = popTags == null
+                ? 0
+                : popTags.intValue();
+        final int numberOfTagsToPush = pushTags == null
+                ? 0
+                : pushTags.size();
+
+        request.vtrOp = TagRewriteOperation.get(numberOfTagsToPop, numberOfTagsToPush).ordinal();
+
+        if (numberOfTagsToPush > 0) {
+            for (final PushTags tag : pushTags) {
+                if (tag.getIndex() == 0) {
+                    request.tag1 = tag.getDot1qTag().getVlanId().getValue();
+                } else {
+                    request.tag2 = tag.getDot1qTag().getVlanId().getValue();
+                }
+            }
+        }
+
+        LOG.debug("Generated tag rewrite request: {}", request);
+        return request;
+    }
+
+    @Override
+    public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<Rewrite> id,
+                                        @Nonnull final Rewrite dataBefore,
+                                        @Nonnull final Rewrite dataAfter, @Nonnull final WriteContext writeContext)
+            throws WriteFailedException {
+        final String subifName = getSubInterfaceName(id);
+        setTagRewrite(id, subifName, dataAfter, writeContext);
+    }
+
+    @Override
+    public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<Rewrite> id,
+                                        @Nonnull final Rewrite dataBefore, @Nonnull final WriteContext writeContext)
+            throws WriteFailedException {
+        final String subifName = getSubInterfaceName(id);
+
+        LOG.debug("Disabling tag rewrite for interface {}", subifName);
+        final Rewrite rewrite = new RewriteBuilder().build(); // rewrite without push and pops will cause delete
+        setTagRewrite(id, subifName, rewrite, writeContext);
+    }
+}