Adding a grid topology simulator to the null provider.
Change-Id: Ie655840febc11d3986f1c8ec5c8ef2374014794c
diff --git a/providers/null/src/main/java/org/onosproject/provider/nil/cli/NullDeviceCommand.java b/providers/null/src/main/java/org/onosproject/provider/nil/cli/NullDeviceCommand.java
new file mode 100644
index 0000000..00bc5b9
--- /dev/null
+++ b/providers/null/src/main/java/org/onosproject/provider/nil/cli/NullDeviceCommand.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2016 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.provider.nil.cli;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.net.DeviceId;
+import org.onosproject.provider.nil.NullProviders;
+
+import static org.onosproject.cli.UpDownCompleter.DOWN;
+import static org.onosproject.cli.UpDownCompleter.UP;
+
+/**
+ * Servers or repairs a simulated link.
+ */
+@Command(scope = "onos", name = "null-device",
+ description = "Severs or repairs a simulated link")
+public class NullDeviceCommand extends AbstractShellCommand {
+
+ @Argument(index = 0, name = "id", description = "Device identifier",
+ required = true, multiValued = false)
+ String id = null;
+
+ @Argument(index = 1, name = "cmd", description = "up/down",
+ required = true, multiValued = false)
+ String cmd = null;
+
+
+ @Override
+ protected void execute() {
+ NullProviders service = get(NullProviders.class);
+ DeviceId deviceId = DeviceId.deviceId(id);
+
+ if (cmd.equals(UP)) {
+ service.repairDevice(deviceId);
+ } else if (cmd.equals(DOWN)) {
+ service.failDevice(deviceId);
+ } else {
+ error("Illegal command %s; must be up or down", cmd);
+ }
+ }
+
+}