[ONOS-6169] Implement codec for LispAppDataAddress with unit test

Change-Id: I1209bbb5f3e96010ef6df87fe8d0906564942ad4
diff --git a/drivers/lisp/src/main/java/org/onosproject/drivers/lisp/extensions/codec/LispMappingExtensionCodecContextAdapter.java b/drivers/lisp/src/main/java/org/onosproject/drivers/lisp/extensions/codec/LispMappingExtensionCodecContextAdapter.java
new file mode 100644
index 0000000..8563f2a
--- /dev/null
+++ b/drivers/lisp/src/main/java/org/onosproject/drivers/lisp/extensions/codec/LispMappingExtensionCodecContextAdapter.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2017-present Open Networking Laboratory
+ *
+ * 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.drivers.lisp.extensions.codec;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.onosproject.codec.CodecContext;
+import org.onosproject.codec.CodecService;
+import org.onosproject.codec.JsonCodec;
+
+/**
+ * An adapter that provides LISP mapping extension codec context.
+ */
+public class LispMappingExtensionCodecContextAdapter implements CodecContext {
+
+    private final ObjectMapper mapper = new ObjectMapper();
+    private final CodecService manager;
+
+    /**
+     * Constructs a new mock codec context.
+     *
+     * @param manager codec manager
+     */
+    public LispMappingExtensionCodecContextAdapter(CodecService manager) {
+        this.manager = manager;
+    }
+
+    @Override
+    public ObjectMapper mapper() {
+        return mapper;
+    }
+
+    @Override
+    public <T> JsonCodec<T> codec(Class<T> entityClass) {
+        return manager.getCodec(entityClass);
+    }
+
+    @Override
+    public <T> T getService(Class<T> serviceClass) {
+        return null;
+    }
+}