Refactor LISP package to separate ctrl interface and impl classes

Change-Id: I4e94ff54299e886cd0e8b3ce38591b0900290f54
diff --git a/protocols/lisp/ctl/src/test/java/org/onosproject/lisp/ctl/impl/LispMessageEncoderTest.java b/protocols/lisp/ctl/src/test/java/org/onosproject/lisp/ctl/impl/LispMessageEncoderTest.java
new file mode 100644
index 0000000..a7fd2de
--- /dev/null
+++ b/protocols/lisp/ctl/src/test/java/org/onosproject/lisp/ctl/impl/LispMessageEncoderTest.java
@@ -0,0 +1,94 @@
+/*
+ * Copyright 2016-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.lisp.ctl.impl;
+
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.Lists;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import io.netty.channel.socket.DatagramPacket;
+import org.junit.Test;
+import org.onosproject.lisp.msg.protocols.LispType;
+
+import java.nio.charset.StandardCharsets;
+import java.util.List;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.notNullValue;
+
+/**
+ * Tests for LISP message encoder.
+ */
+public class LispMessageEncoderTest {
+
+    static class MockLispMessage extends LispMessageAdapter {
+        LispType type;
+
+        public MockLispMessage(LispType type) {
+            super(type);
+            this.type = type;
+        }
+
+        @Override
+        public void writeTo(ByteBuf buffer) {
+            String message = "LISP message [" + type.toString() + "] ";
+            buffer.writeBytes(message.getBytes(StandardCharsets.UTF_8));
+        }
+    }
+
+    @Test
+    public void testEncodeOneEntry() throws Exception {
+        LispMessageEncoder encoder = new LispMessageEncoder();
+        MockLispMessage message = new MockLispMessage(LispType.LISP_MAP_REQUEST);
+
+        List<DatagramPacket> list = Lists.newArrayList();
+        encoder.encode(null, message, list);
+
+        assertThat(list, notNullValue());
+
+        String expected = "LISP message [LISP_MAP_REQUEST] ";
+        String returned = new String(list.get(0).content().array(),
+                        StandardCharsets.UTF_8).substring(0, expected.length());
+        assertThat(returned, is(expected));
+    }
+
+    //@Test
+    public void testEncode() throws Exception {
+        LispMessageEncoder encoder = new LispMessageEncoder();
+        MockLispMessage request = new MockLispMessage(LispType.LISP_MAP_REQUEST);
+        MockLispMessage reply = new MockLispMessage(LispType.LISP_MAP_REPLY);
+        MockLispMessage register = new MockLispMessage(LispType.LISP_MAP_REGISTER);
+        MockLispMessage notify = new MockLispMessage(LispType.LISP_MAP_NOTIFY);
+
+        ByteBuf buff = Unpooled.buffer();
+        List<MockLispMessage> messages = ImmutableList.of(request, reply, register, notify);
+        encoder.encode(null, messages, Lists.newArrayList());
+
+        assertThat(buff, notNullValue());
+
+        StringBuilder expBuilder = new StringBuilder();
+        expBuilder.append("LISP message [LISP_MAP_REQUEST] ");
+        expBuilder.append("LISP message [LISP_MAP_REPLY] ");
+        expBuilder.append("LISP message [LISP_MAP_REGISTER] ");
+        expBuilder.append("LISP message [LISP_MAP_NOTIFY] ");
+
+        String expected = expBuilder.toString();
+        String returned = new String(buff.array(),
+                        StandardCharsets.UTF_8).substring(0, expected.length());
+        assertThat(returned, is(expected));
+    }
+}