ONOS extensions for use of egress tables.

This patch depends on 17671 onos-loxi patch. When we make
the new loxi release we need to change the prebuild
openflowj in lib/BUCK to that of the actual release number.

It provides support for programming l2 unfiltered groups,
the egress vlan table and the egress tpid table.

Depends-On: I3cea6ed2234147c8dbe440ae1701856a60706e7c
Change-Id: I7525f5856300eac25548b5219a5dffed12b291ad
diff --git a/drivers/default/src/main/java/org/onosproject/driver/extensions/codec/OfdpaMatchAllowVlanTranslationCodec.java b/drivers/default/src/main/java/org/onosproject/driver/extensions/codec/OfdpaMatchAllowVlanTranslationCodec.java
new file mode 100644
index 0000000..c72aa2c
--- /dev/null
+++ b/drivers/default/src/main/java/org/onosproject/driver/extensions/codec/OfdpaMatchAllowVlanTranslationCodec.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2017-present Open Networking Foundation
+ *
+ * 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 org.onosproject.driver.extensions.codec;
+
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.onosproject.codec.CodecContext;
+import org.onosproject.codec.JsonCodec;
+import org.onosproject.driver.extensions.OfdpaMatchAllowVlanTranslation;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.onlab.util.Tools.nullIsIllegal;
+
+/**
+ * JSON Codec for Ofdpa match allow vlan translation class.
+ */
+public class OfdpaMatchAllowVlanTranslationCodec extends JsonCodec<OfdpaMatchAllowVlanTranslation> {
+
+    private static final String ALLOW_VLAN_TRANSLATION = "allowVlanTranslation";
+    private static final String MISSING_MEMBER_MESSAGE = " member is required in OfdpaMatchAllowVlanTranslation";
+    private static final String MISSING_ALLOW_VLAN_TRANSLATION_MESSAGE = "Allow Vlan Translation cannot be null";
+
+    @Override
+    public ObjectNode encode(OfdpaMatchAllowVlanTranslation allowVlanTranslation, CodecContext context) {
+        checkNotNull(allowVlanTranslation, MISSING_ALLOW_VLAN_TRANSLATION_MESSAGE);
+        return context.mapper().createObjectNode().put(ALLOW_VLAN_TRANSLATION,
+                                                       allowVlanTranslation.allowVlanTranslation());
+    }
+
+    @Override
+    public OfdpaMatchAllowVlanTranslation decode(ObjectNode json, CodecContext context) {
+        if (json == null || !json.isObject()) {
+            return null;
+        }
+
+        // parse ofdpa match allow vlan translation
+        short allowVlanTranslation = (short) nullIsIllegal(json.get(ALLOW_VLAN_TRANSLATION),
+                                                           ALLOW_VLAN_TRANSLATION + MISSING_MEMBER_MESSAGE).asLong();
+        return new OfdpaMatchAllowVlanTranslation(allowVlanTranslation);
+    }
+}