ONOS-2184 - Initial implementation of Virtual network Intent service.

Change-Id: I03103b4eca797cd32480fbd0e3b4cf0385b50ef2
diff --git a/cli/src/main/java/org/onosproject/cli/net/vnet/VirtualNetworkIntentCreateCommand.java b/cli/src/main/java/org/onosproject/cli/net/vnet/VirtualNetworkIntentCreateCommand.java
new file mode 100644
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+++ b/cli/src/main/java/org/onosproject/cli/net/vnet/VirtualNetworkIntentCreateCommand.java
@@ -0,0 +1,82 @@
+/*
+ * 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.cli.net.vnet;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.cli.net.ConnectivityIntentCommand;
+import org.onosproject.incubator.net.virtual.NetworkId;
+import org.onosproject.incubator.net.virtual.VirtualNetworkIntent;
+import org.onosproject.incubator.net.virtual.VirtualNetworkService;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.flow.TrafficSelector;
+import org.onosproject.net.flow.TrafficTreatment;
+import org.onosproject.net.intent.Constraint;
+import org.onosproject.net.intent.Intent;
+import org.onosproject.net.intent.IntentService;
+
+import java.util.List;
+
+/**
+ * Installs virtual network intents.
+ */
+@Command(scope = "onos", name = "add-vnet-intent",
+        description = "Installs virtual network connectivity intent")
+public class VirtualNetworkIntentCreateCommand extends ConnectivityIntentCommand {
+
+    @Argument(index = 0, name = "networkId", description = "Network ID",
+            required = true, multiValued = false)
+    Long networkId = null;
+
+    @Argument(index = 1, name = "ingressDevice",
+            description = "Ingress Device/Port Description",
+            required = true, multiValued = false)
+    String ingressDeviceString = null;
+
+    @Argument(index = 2, name = "egressDevice",
+            description = "Egress Device/Port Description",
+            required = true, multiValued = false)
+    String egressDeviceString = null;
+
+    @Override
+    protected void execute() {
+        VirtualNetworkService service = get(VirtualNetworkService.class);
+        IntentService virtualNetworkIntentService = service.get(NetworkId.networkId(networkId), IntentService.class);
+
+        ConnectPoint ingress = ConnectPoint.deviceConnectPoint(ingressDeviceString);
+        ConnectPoint egress = ConnectPoint.deviceConnectPoint(egressDeviceString);
+
+        TrafficSelector selector = buildTrafficSelector();
+        TrafficTreatment treatment = buildTrafficTreatment();
+
+        List<Constraint> constraints = buildConstraints();
+
+        Intent intent = VirtualNetworkIntent.builder()
+                .networkId(NetworkId.networkId(networkId))
+                .appId(appId())
+                .key(key())
+                .selector(selector)
+                .treatment(treatment)
+                .ingressPoint(ingress)
+                .egressPoint(egress)
+                .constraints(constraints)
+                .priority(priority())
+                .build();
+        virtualNetworkIntentService.submit(intent);
+        print("Virtual intent submitted:\n%s", intent.toString());
+    }
+}