1 files changed, 142 insertions, 0 deletions
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/read/RewriteCustomizer.java b/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/read/RewriteCustomizer.java
new file mode 100644
index 000000000..54164cc10
--- /dev/null
+++ b/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/read/RewriteCustomizer.java
@@ -0,0 +1,142 @@
+/*
+ * 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.read;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static com.google.common.base.Preconditions.checkState;
+
+import io.fd.hc2vpp.common.translate.util.TagRewriteOperation;
+import io.fd.hc2vpp.v3po.read.cache.InterfaceCacheDumpManager;
+import io.fd.hc2vpp.v3po.util.SubInterfaceUtils;
+import io.fd.honeycomb.translate.read.ReadContext;
+import io.fd.honeycomb.translate.read.ReadFailedException;
+import io.fd.honeycomb.translate.spi.read.ReaderCustomizer;
+import io.fd.jvpp.core.dto.SwInterfaceDetails;
+import java.util.ArrayList;
+import java.util.List;
+import javax.annotation.Nonnull;
+import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319._802dot1ad;
+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.sub._interface.l2.config.attributes.L2Builder;
+import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.tag.rewrite.PushTags;
+import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.tag.rewrite.PushTagsBuilder;
+import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.tag.rewrite.PushTagsKey;
+import org.opendaylight.yang.gen.v1.urn.ieee.params.xml.ns.yang.dot1q.types.rev150626.CVlan;
+import org.opendaylight.yang.gen.v1.urn.ieee.params.xml.ns.yang.dot1q.types.rev150626.Dot1qTagVlanType;
+import org.opendaylight.yang.gen.v1.urn.ieee.params.xml.ns.yang.dot1q.types.rev150626.Dot1qVlanId;
+import org.opendaylight.yang.gen.v1.urn.ieee.params.xml.ns.yang.dot1q.types.rev150626.SVlan;
+import org.opendaylight.yang.gen.v1.urn.ieee.params.xml.ns.yang.dot1q.types.rev150626.dot1q.tag.Dot1qTagBuilder;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev180220.interfaces.Interface;
+import org.opendaylight.yangtools.concepts.Builder;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Customizer for reading vlan tag-rewrite configuration state form the VPP.
+ */
+public class RewriteCustomizer
+        implements ReaderCustomizer<Rewrite, RewriteBuilder>, InterfaceDataTranslator {
+
+    // No initialization necessary since its parent Subinterface L2 customzier sets the entire subtree during
+    // initialization
+
+    private static final Logger LOG = LoggerFactory.getLogger(RewriteCustomizer.class);
+    private final InterfaceCacheDumpManager dumpManager;
+
+    public RewriteCustomizer(@Nonnull final InterfaceCacheDumpManager dumpManager) {
+        this.dumpManager = checkNotNull(dumpManager, "dumpManager should not be null");
+    }
+
+    @Override
+    public void merge(@Nonnull final Builder<? extends DataObject> parentBuilder,
+                      @Nonnull final Rewrite readValue) {
+        ((L2Builder) parentBuilder).setRewrite(readValue);
+    }
+
+    @Nonnull
+    @Override
+    public RewriteBuilder getBuilder(@Nonnull final InstanceIdentifier<Rewrite> id) {
+        return new RewriteBuilder();
+    }
+
+    @Override
+    public void readCurrentAttributes(@Nonnull final InstanceIdentifier<Rewrite> id,
+                                      @Nonnull final RewriteBuilder builder, @Nonnull final ReadContext ctx)
+            throws ReadFailedException {
+        final String subInterfaceName = getSubInterfaceName(id);
+        LOG.debug("Reading attributes for sub interface: {}", subInterfaceName);
+
+        final SwInterfaceDetails iface = dumpManager.getInterfaceDetail(id, ctx, subInterfaceName);
+        LOG.debug("VPP sub-interface details: {}", iface);
+
+        checkState(isSubInterface(iface), "Interface returned by the VPP is not a sub-interface");
+
+        final TagRewriteOperation operation = TagRewriteOperation.get(iface.vtrOp);
+        if (TagRewriteOperation.disabled == operation) {
+            LOG.debug("Tag rewrite operation is disabled for ");
+            return;
+        }
+
+        builder.setVlanType(iface.vtrPushDot1Q == 1
+                ? _802dot1q.class
+                : _802dot1ad.class);
+
+        setPushTags(builder, iface);
+        setPopTags(builder, operation);
+    }
+
+    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 setPopTags(final RewriteBuilder builder, final TagRewriteOperation operation) {
+        final byte numberOfTagsToPop = operation.getPopTags();
+        if (numberOfTagsToPop != 0) {
+            builder.setPopTags(Short.valueOf(numberOfTagsToPop));
+        }
+    }
+
+    private void setPushTags(final RewriteBuilder builder, final SwInterfaceDetails iface) {
+        final List<PushTags> tags = new ArrayList<>();
+        if (iface.vtrTag1 != 0) {
+            tags.add(buildTag((short) 0, SVlan.class, iface.vtrTag1));
+        }
+        if (iface.vtrTag2 != 0) {
+            tags.add(buildTag((short) 1, CVlan.class, iface.vtrTag2));
+        }
+        if (tags.size() > 0) {
+            builder.setPushTags(tags);
+        }
+    }
+
+    private PushTags buildTag(final short index, final Class<? extends Dot1qTagVlanType> tagType, final int vlanId) {
+        final PushTagsBuilder tag = new PushTagsBuilder();
+        tag.setIndex(index);
+        tag.withKey(new PushTagsKey(index));
+        final Dot1qTagBuilder dtag = new Dot1qTagBuilder();
+        dtag.setTagType(tagType);
+        dtag.setVlanId(new Dot1qVlanId(vlanId));
+        tag.setDot1qTag(dtag.build());
+        return tag.build();
+    }
+}