[ONOS-2263] - OVSDB -- Create the implementation of TunnelProvider using
OVSDB protocol.
1.Notify the Tunnel System when tunnel is added/updated/removed.

Change-Id: I98d918a55dab77005531918ecb8864dfafbc0c42
diff --git a/providers/ovsdb/tunnel/src/test/java/org/onosproject/ovsdb/provider/tunnel/OvsdbTunnelProviderTest.java b/providers/ovsdb/tunnel/src/test/java/org/onosproject/ovsdb/provider/tunnel/OvsdbTunnelProviderTest.java
new file mode 100644
index 0000000..3d1549e
--- /dev/null
+++ b/providers/ovsdb/tunnel/src/test/java/org/onosproject/ovsdb/provider/tunnel/OvsdbTunnelProviderTest.java
@@ -0,0 +1,185 @@
+/*
+ * Copyright 2015 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.ovsdb.provider.tunnel;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onlab.packet.IpAddress;
+import org.onosproject.core.DefaultGroupId;
+import org.onosproject.incubator.net.tunnel.DefaultTunnelDescription;
+import org.onosproject.incubator.net.tunnel.IpTunnelEndPoint;
+import org.onosproject.incubator.net.tunnel.Tunnel;
+import org.onosproject.incubator.net.tunnel.TunnelDescription;
+import org.onosproject.incubator.net.tunnel.TunnelEndPoint;
+import org.onosproject.incubator.net.tunnel.TunnelId;
+import org.onosproject.incubator.net.tunnel.TunnelName;
+import org.onosproject.incubator.net.tunnel.TunnelProvider;
+import org.onosproject.incubator.net.tunnel.TunnelProviderRegistry;
+import org.onosproject.incubator.net.tunnel.TunnelProviderService;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.DefaultAnnotations;
+import org.onosproject.net.DefaultLink;
+import org.onosproject.net.DefaultPath;
+import org.onosproject.net.Link;
+import org.onosproject.net.SparseAnnotations;
+import org.onosproject.net.provider.AbstractProviderService;
+import org.onosproject.net.provider.ProviderId;
+
+/**
+ * Test for ovsdb tunnel provider.
+ */
+public class OvsdbTunnelProviderTest {
+    private final OvsdbTunnelProvider provider = new OvsdbTunnelProvider();
+    private final TestTunnelRegistry tunnelRegistry = new TestTunnelRegistry();
+    private TestTunnelProviderService providerService;
+
+    @Before
+    public void setUp() {
+        provider.providerRegistry = tunnelRegistry;
+        provider.activate();
+    }
+
+    @Test
+    public void basics() {
+        assertNotNull("registration expected", providerService);
+        assertEquals("incorrect provider", provider, providerService.provider());
+    }
+
+    @Test
+    public void testTunnelAdded() {
+        TunnelEndPoint src = IpTunnelEndPoint.ipTunnelPoint(IpAddress
+                .valueOf("192.168.1.1"));
+        TunnelEndPoint dst = IpTunnelEndPoint.ipTunnelPoint(IpAddress
+                .valueOf("192.168.1.3"));
+        SparseAnnotations annotations = DefaultAnnotations.builder()
+                .set("bandwidth", "1024").build();
+        Link link = new DefaultLink(
+                                    this.provider.id(),
+                                    ConnectPoint.deviceConnectPoint("192.168.2.3/20"),
+                                    ConnectPoint.deviceConnectPoint("192.168.2.4/30"),
+                                    Link.Type.DIRECT);
+        List<Link> links = new ArrayList<Link>();
+        links.add(link);
+        TunnelDescription tunnel = new DefaultTunnelDescription(
+                                                                TunnelId.valueOf("1234"),
+                                                                src,
+                                                                dst,
+                                                                Tunnel.Type.VXLAN,
+                                                                new DefaultGroupId(0),
+                                                                this.provider.id(),
+                                                                TunnelName.tunnelName("tunnel12"),
+                                                                new DefaultPath(this.provider.id(), links, 0.3),
+                                                                annotations);
+        provider.tunnelAdded(tunnel);
+        assertEquals(1, providerService.tunnelSet.size());
+    }
+
+    @Test
+    public void testTunnelRemoved() {
+        TunnelEndPoint src = IpTunnelEndPoint.ipTunnelPoint(IpAddress
+                .valueOf("192.168.1.1"));
+        TunnelEndPoint dst = IpTunnelEndPoint.ipTunnelPoint(IpAddress
+                .valueOf("192.168.1.3"));
+        SparseAnnotations annotations = DefaultAnnotations.builder()
+                .set("bandwidth", "1024").build();
+        Link link = new DefaultLink(
+                                    this.provider.id(),
+                                    ConnectPoint.deviceConnectPoint("192.168.2.3/20"),
+                                    ConnectPoint.deviceConnectPoint("192.168.2.4/30"),
+                                    Link.Type.DIRECT);
+        List<Link> links = new ArrayList<Link>();
+        links.add(link);
+        TunnelDescription tunnel = new DefaultTunnelDescription(
+                                                                TunnelId.valueOf("1234"),
+                                                                src,
+                                                                dst,
+                                                                Tunnel.Type.VXLAN,
+                                                                new DefaultGroupId(0),
+                                                                this.provider.id(),
+                                                                TunnelName.tunnelName("tunnel1"),
+                                                                new DefaultPath(this.provider.id(), links, 0.3),
+                                                                annotations);
+        provider.tunnelRemoved(tunnel);
+        assertEquals(0, providerService.tunnelSet.size());
+    }
+
+    @After
+    public void tearDown() {
+        provider.deactivate();
+        provider.providerRegistry = null;
+    }
+
+    private class TestTunnelRegistry implements TunnelProviderRegistry {
+
+        @Override
+        public TunnelProviderService register(TunnelProvider provider) {
+            providerService = new TestTunnelProviderService(provider);
+            return providerService;
+        }
+
+        @Override
+        public void unregister(TunnelProvider provider) {
+
+        }
+
+        @Override
+        public Set<ProviderId> getProviders() {
+            return null;
+        }
+
+    }
+
+    private class TestTunnelProviderService
+            extends AbstractProviderService<TunnelProvider>
+            implements TunnelProviderService {
+        Set<TunnelDescription> tunnelSet = new HashSet<TunnelDescription>();
+
+        protected TestTunnelProviderService(TunnelProvider provider) {
+            super(provider);
+        }
+
+        @Override
+        public TunnelId tunnelAdded(TunnelDescription tunnel) {
+            tunnelSet.add(tunnel);
+            return null;
+        }
+
+        @Override
+        public void tunnelRemoved(TunnelDescription tunnel) {
+            tunnelSet.remove(tunnel);
+        }
+
+        @Override
+        public void tunnelUpdated(TunnelDescription tunnel) {
+
+        }
+
+        @Override
+        public Tunnel tunnelQueryById(TunnelId tunnelId) {
+            return null;
+        }
+
+    }
+}