CORD-1615 add CLI command to support the removal of state machines

Change-Id: I428bff2a8e502cc7b1c73f804792c36a8f847b57
diff --git a/src/main/java/org/opencord/aaa/AaaResetDeviceCommand.java b/src/main/java/org/opencord/aaa/AaaResetDeviceCommand.java
new file mode 100644
index 0000000..f58d3de
--- /dev/null
+++ b/src/main/java/org/opencord/aaa/AaaResetDeviceCommand.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2017-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.opencord.aaa;
+
+import org.apache.karaf.shell.commands.Command;
+import org.apache.karaf.shell.commands.Argument;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onlab.packet.MacAddress;
+
+@Command(scope = "onos", name = "aaa-reset-device",
+         description = "Resets the authentication state machine for a given device")
+public class AaaResetDeviceCommand extends AbstractShellCommand {
+    @Argument(index = 0, name = "mac", description = "MAC of device to reset authention state",
+              required = true, multiValued = true)
+    private String[] macs = null;
+
+    @Override
+    protected void execute() {
+        for (String mac : macs) {
+            StateMachine.deleteByMac(MacAddress.valueOf(mac));
+        }
+    }
+}