DatabaseService subsystem: add admin commands, etc.

Change-Id: I24124579f5e0b03ccbf35a03230ae5a7aff95f22
diff --git a/cli/src/main/java/org/onlab/onos/cli/TabletAddCommand.java b/cli/src/main/java/org/onlab/onos/cli/TabletAddCommand.java
new file mode 100644
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+++ b/cli/src/main/java/org/onlab/onos/cli/TabletAddCommand.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2014 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.onlab.onos.cli;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onlab.onos.cluster.ControllerNode;
+import org.onlab.onos.cluster.DefaultControllerNode;
+import org.onlab.onos.cluster.NodeId;
+import org.onlab.onos.store.service.DatabaseAdminService;
+import org.onlab.packet.IpAddress;
+
+/**
+ * Adds a new controller cluster node.
+ */
+@Command(scope = "onos", name = "tablet-add",
+         description = "Adds a new member to tablet")
+public class TabletAddCommand extends AbstractShellCommand {
+
+    @Argument(index = 0, name = "nodeId", description = "Node ID",
+              required = true, multiValued = false)
+    String nodeId = null;
+
+    // TODO context aware completer to get IP from ClusterService?
+    @Argument(index = 1, name = "ip", description = "Node IP address",
+              required = true, multiValued = false)
+    String ip = null;
+
+    @Argument(index = 2, name = "tcpPort", description = "Node TCP listen port",
+              required = false, multiValued = false)
+    int tcpPort = 9876;
+
+    // TODO add tablet name argument when we support multiple tablets
+
+    @Override
+    protected void execute() {
+        DatabaseAdminService service = get(DatabaseAdminService.class);
+        ControllerNode node = new DefaultControllerNode(new NodeId(nodeId),
+                                                        IpAddress.valueOf(ip),
+                                                        tcpPort);
+        service.addMember(node);
+    }
+}