ONOS-3124 Sketch of simplified intent domain service

Change-Id: I6d8304214897ba75a299bfd9bd90b4591ae8eb04
diff --git a/cli/src/main/java/org/onosproject/cli/net/AddTunnelCommand.java b/cli/src/main/java/org/onosproject/cli/net/AddTunnelCommand.java
new file mode 100644
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@@ -0,0 +1,67 @@
+/*
+ * 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.cli.net;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.incubator.net.domain.IntentDomainId;
+import org.onosproject.incubator.net.domain.IntentDomainService;
+import org.onosproject.incubator.net.domain.TunnelPrimitive;
+import org.onosproject.net.ConnectPoint;
+
+import java.util.NoSuchElementException;
+
+/**
+ * Installs intent domain tunnel primitive.
+ */
+@Command(scope = "onos", name = "add-domain-tunnel",
+         description = "Installs intent domain tunnel primitive")
+public class AddTunnelCommand extends AbstractShellCommand {
+
+    @Argument(index = 0, name = "one",
+              description = "Port one",
+              required = true, multiValued = false)
+    String oneString = null;
+
+    @Argument(index = 1, name = "two",
+              description = "Port two",
+              required = true, multiValued = false)
+    String twoString = null;
+
+    @Override
+    protected void execute() {
+        IntentDomainService service = get(IntentDomainService.class);
+
+        ConnectPoint one = ConnectPoint.deviceConnectPoint(oneString);
+        ConnectPoint two = ConnectPoint.deviceConnectPoint(twoString);
+
+        TunnelPrimitive tunnel = new TunnelPrimitive(appId(), one, two);
+
+        // get the first domain (there should only be one)
+        final IntentDomainId domainId;
+        try {
+            domainId = service.getDomains().iterator().next().id();
+        } catch (NoSuchElementException | NullPointerException e) {
+            print("No domains found");
+            return;
+        }
+
+        service.request(domainId, tunnel).forEach(r -> service.submit(domainId, r));
+
+        print("Intent domain tunnel submitted:\n%s", tunnel);
+    }
+}