Modify a annotation and refactor Web UI.

Change-Id: I985733e8f4e7d0cda292ed4a240d1250db8e2316
diff --git a/apps/openstacktelemetry/app/src/test/java/org/onosproject/openstacktelemetry/util/OpenstackTelemetryUtilTest.java b/apps/openstacktelemetry/app/src/test/java/org/onosproject/openstacktelemetry/util/OpenstackTelemetryUtilTest.java
new file mode 100644
index 0000000..d6d147f
--- /dev/null
+++ b/apps/openstacktelemetry/app/src/test/java/org/onosproject/openstacktelemetry/util/OpenstackTelemetryUtilTest.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2018-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.openstacktelemetry.util;
+
+import org.junit.Test;
+import org.onlab.packet.IPv4;
+
+import static org.junit.Assert.assertEquals;
+import static org.onosproject.openstacktelemetry.util.OpenstackTelemetryUtil.getProtocolNameFromType;
+import static org.onosproject.openstacktelemetry.util.OpenstackTelemetryUtil.getProtocolTypeFromString;
+
+public class OpenstackTelemetryUtilTest {
+
+    private static final String PROTOCOL_TCP_L = "TCP";
+    private static final String PROTOCOL_TCP_S = "tcp";
+    private static final String PROTOCOL_UDP_L = "UDP";
+    private static final String PROTOCOL_UDP_S = "udp";
+    private static final String PROTOCOL_ANY_L = "ANY";
+    private static final String PROTOCOL_ANY_S = "any";
+
+    /**
+     * Tests getting a protocol type from a protocol name.
+     */
+    @Test
+    public void testGetProtocolTypeFromString() {
+        assertEquals(IPv4.PROTOCOL_TCP, getProtocolTypeFromString(PROTOCOL_TCP_L));
+        assertEquals(IPv4.PROTOCOL_TCP, getProtocolTypeFromString(PROTOCOL_TCP_S));
+
+        assertEquals(IPv4.PROTOCOL_UDP, getProtocolTypeFromString(PROTOCOL_UDP_L));
+        assertEquals(IPv4.PROTOCOL_UDP, getProtocolTypeFromString(PROTOCOL_UDP_S));
+
+        assertEquals(0, getProtocolTypeFromString(PROTOCOL_ANY_L));
+        assertEquals(0, getProtocolTypeFromString(PROTOCOL_ANY_S));
+    }
+
+    /**
+     * Tests getting a protocol name from a protocol type.
+     */
+    @Test
+    public void testGetProtocolNameFromType() {
+        assertEquals(PROTOCOL_TCP_S, getProtocolNameFromType(IPv4.PROTOCOL_TCP));
+        assertEquals(PROTOCOL_UDP_S, getProtocolNameFromType(IPv4.PROTOCOL_UDP));
+        assertEquals(PROTOCOL_ANY_S, getProtocolNameFromType((byte) 0));
+    }
+}