[ONOS-4045]Adding mastership service to NetconfProvider

Change-Id: Id39cbef54a079ab6e080a9d3f60770c4bea90b3f

@@ -18,6 +18,7 @@ package org.onosproject.drivers.netconf;
 
 import com.google.common.base.Preconditions;
 import org.onosproject.drivers.utilities.XmlConfigParser;
+import org.onosproject.mastership.MastershipService;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.behaviour.ControllerConfig;
 import org.onosproject.net.behaviour.ControllerInfo;
@@ -44,21 +45,29 @@ public class NetconfControllerConfig extends AbstractHandlerBehaviour
 
     private final Logger log = getLogger(NetconfControllerConfig.class);
 
+
     @Override
     public List<ControllerInfo> getControllers() {
         DriverHandler handler = handler();
         NetconfController controller = handler.get(NetconfController.class);
-        DeviceId ofDeviceId = handler.data().deviceId();
+        MastershipService mastershipService = handler.get(MastershipService.class);
+        DeviceId deviceId = handler.data().deviceId();
         Preconditions.checkNotNull(controller, "Netconf controller is null");
         List<ControllerInfo> controllers = new ArrayList<>();
+        if (mastershipService.isLocalMaster(deviceId)) {
             try {
-            String reply = controller.getDevicesMap().get(ofDeviceId).getSession().
+                String reply = controller.getNetconfDevice(deviceId).getSession().
                         getConfig("running");
                 log.debug("Reply XML {}", reply);
                 controllers.addAll(XmlConfigParser.parseStreamControllers(XmlConfigParser.
                         loadXml(new ByteArrayInputStream(reply.getBytes(StandardCharsets.UTF_8)))));
             } catch (IOException e) {
-            log.error("Cannot communicate with device {} ", ofDeviceId);
+                log.error("Cannot communicate with device {} ", deviceId, e);
+            }
+        } else {
+            log.warn("I'm not master for {} please use master, {} to execute command",
+                     deviceId,
+                     mastershipService.getMasterFor(deviceId));
         }
         return controllers;
     }
@@ -69,6 +78,8 @@ public class NetconfControllerConfig extends AbstractHandlerBehaviour
         NetconfController controller = handler.get(NetconfController.class);
         DeviceId deviceId = handler.data().deviceId();
         Preconditions.checkNotNull(controller, "Netconf controller is null");
+        MastershipService mastershipService = handler.get(MastershipService.class);
+        if (mastershipService.isLocalMaster(deviceId)) {
             try {
                 NetconfDevice device = controller.getNetconfDevice(deviceId);
                 String config = null;
@@ -92,7 +103,11 @@ public class NetconfControllerConfig extends AbstractHandlerBehaviour
             } catch (IOException e) {
                 log.error("Cannot comunicate to device {} , exception {}", deviceId, e.getMessage());
             }
-
+        } else {
+            log.warn("I'm not master for {} please use master, {} to execute command",
+                     deviceId,
+                     mastershipService.getMasterFor(deviceId));
+        }
     }
 
     //TODO maybe put method getNetconfClientService like in ovsdb if we need it

@@ -46,31 +46,31 @@ public interface NetconfController {
      * Tries to connect to a specific NETCONF device, if the connection is succesful
      * it creates and adds the device to the ONOS core as a NetconfDevice.
      *
-     * @param deviceInfo info about the device to add
+     * @param deviceId deviceId of the device to connect
      * @return NetconfDevice Netconf device
      * @throws NetconfException when device is not available
      */
-    NetconfDevice connectDevice(NetconfDeviceInfo deviceInfo) throws NetconfException;
+    NetconfDevice connectDevice(DeviceId deviceId) throws NetconfException;
 
     /**
      * Disconnects a Netconf device and removes it from the core.
      *
-     * @param deviceInfo info about the device to remove
+     * @param deviceId id of the device to remove
+     * @param remove   true if device is to be removed from core
      */
-    void disconnectDevice(NetconfDeviceInfo deviceInfo);
+    void disconnectDevice(DeviceId deviceId, boolean remove);
 
     /**
      * Removes a Netconf device from the core.
      *
-     * @param deviceInfo info about the device to remove
+     * @param deviceId id of the device to remove
      */
-    void removeDevice(NetconfDeviceInfo deviceInfo);
+    void removeDevice(DeviceId deviceId);
 
     /**
      * Gets all the nodes information.
      *
      * @return map of devices
-     *
      */
     Map<DeviceId, NetconfDevice> getDevicesMap();
 
@@ -97,5 +97,4 @@ public interface NetconfController {
      * @return NetconfDevice Netconf device
      */
     NetconfDevice getNetconfDevice(IpAddress ip, int port);
-
 }

@@ -16,22 +16,25 @@
 
 package org.onosproject.netconf;
 
+import org.onosproject.net.DeviceId;
+
 /**
  * Allows for providers interested in node events to be notified.
  */
 public interface NetconfDeviceListener {
 
     /**
-     * Notifies that the node was added.
+     * Notifies that the device was added.
      *
-     * @param nodeId the node where the event occurred
+     * @param deviceId the device that was added
      */
-    void deviceAdded(NetconfDeviceInfo nodeId);
+    void deviceAdded(DeviceId deviceId);
 
     /**
-     * Notifies that the node was removed.
+     * Notifies that the device was removed.
      *
-     * @param nodeId the node where the event occurred
+     * @param deviceId the device that was removed
      */
-    void deviceRemoved(NetconfDeviceInfo nodeId);
+
+    void deviceRemoved(DeviceId deviceId);
 }

@@ -35,7 +35,7 @@ public class DefaultNetconfDevice implements NetconfDevice {
             .getLogger(DefaultNetconfDevice.class);
 
     private NetconfDeviceInfo netconfDeviceInfo;
-    private boolean deviceState = false;
+    private boolean deviceState = true;
     protected NetconfSessionFactory sessionFactory = new SshNetconfSessionFactory();
     private NetconfSession netconfSession;
 
@@ -53,10 +53,10 @@ public class DefaultNetconfDevice implements NetconfDevice {
         try {
             netconfSession = sessionFactory.createNetconfSession(deviceInfo);
         } catch (IOException e) {
+            deviceState = false;
             throw new NetconfException("Cannot create connection and session for device " +
                                                deviceInfo, e);
         }
-        deviceState = true;
     }
 
     @Override

@@ -19,9 +19,16 @@ package org.onosproject.netconf.ctl;
 import org.apache.felix.scr.annotations.Activate;
 import org.apache.felix.scr.annotations.Component;
 import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.IpAddress;
+import org.onosproject.net.Device;
 import org.onosproject.net.DeviceId;
+import org.onosproject.net.device.DeviceService;
+import org.onosproject.net.key.DeviceKeyId;
+import org.onosproject.net.key.DeviceKeyService;
+import org.onosproject.net.key.UsernamePassword;
 import org.onosproject.netconf.NetconfController;
 import org.onosproject.netconf.NetconfDevice;
 import org.onosproject.netconf.NetconfDeviceFactory;
@@ -34,6 +41,7 @@ import org.osgi.service.component.ComponentContext;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import java.util.Arrays;
 import java.util.Map;
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
@@ -45,6 +53,11 @@ import java.util.concurrent.CopyOnWriteArraySet;
 @Component(immediate = true)
 @Service
 public class NetconfControllerImpl implements NetconfController {
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected DeviceService deviceService;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected DeviceKeyService deviceKeyService;
 
     public static final Logger log = LoggerFactory
             .getLogger(NetconfControllerImpl.class);
@@ -95,55 +108,93 @@ public class NetconfControllerImpl implements NetconfController {
     }
 
     @Override
-    public NetconfDevice connectDevice(NetconfDeviceInfo deviceInfo) throws NetconfException {
-        if (netconfDeviceMap.containsKey(deviceInfo.getDeviceId())) {
-            log.info("Device {} is already present", deviceInfo);
-            return netconfDeviceMap.get(deviceInfo.getDeviceId());
+    public NetconfDevice connectDevice(DeviceId deviceId) throws NetconfException {
+        if (netconfDeviceMap.containsKey(deviceId)) {
+            log.debug("Device {} is already present", deviceId);
+            return netconfDeviceMap.get(deviceId);
+        } else {
+            log.debug("Creating NETCONF device {}", deviceId);
+            Device device = deviceService.getDevice(deviceId);
+            String ip;
+            int port;
+            if (device != null) {
+                ip = device.annotations().value("ipaddress");
+                port = Integer.parseInt(device.annotations().value("port"));
+            } else {
+                String[] info = deviceId.toString().split(":");
+                if (info.length == 3) {
+                    ip = info[1];
+                    port = Integer.parseInt(info[2]);
                 } else {
-            log.info("Creating NETCONF device {}", deviceInfo);
-            NetconfDevice device = createDevice(deviceInfo);
-            device.getSession().addDeviceOutputListener(downListener);
-            return device;
+                    ip = Arrays.asList(info).stream().filter(el -> !el.equals(info[0])
+                    && !el.equals(info[info.length - 1]))
+                            .reduce((t, u) -> t + ":" + u)
+                            .get();
+                    log.debug("ip v6 {}", ip);
+                    port = Integer.parseInt(info[info.length - 1]);
+                }
+            }
+            try {
+                UsernamePassword deviceKey = deviceKeyService.getDeviceKey(
+                        DeviceKeyId.deviceKeyId(deviceId.toString())).asUsernamePassword();
+
+                NetconfDeviceInfo deviceInfo = new NetconfDeviceInfo(deviceKey.username(),
+                                                                     deviceKey.password(),
+                                                                     IpAddress.valueOf(ip),
+                                                                     port);
+                NetconfDevice netconfDevicedevice = createDevice(deviceInfo);
+
+                netconfDevicedevice.getSession().addDeviceOutputListener(downListener);
+                return netconfDevicedevice;
+            } catch (NullPointerException e) {
+                throw new NetconfException("No Device Key for device " + deviceId, e);
+            }
         }
     }
 
     @Override
-    public void disconnectDevice(NetconfDeviceInfo deviceInfo) {
-        if (!netconfDeviceMap.containsKey(deviceInfo.getDeviceId())) {
-            log.warn("Device {} is not present", deviceInfo);
+    public void disconnectDevice(DeviceId deviceId, boolean remove) {
+        if (!netconfDeviceMap.containsKey(deviceId)) {
+            log.warn("Device {} is not present", deviceId);
         } else {
-            stopDevice(deviceInfo);
+            stopDevice(deviceId, remove);
+        }
+    }
+
+    private void stopDevice(DeviceId deviceId, boolean remove) {
+        netconfDeviceMap.get(deviceId).disconnect();
+        netconfDeviceMap.remove(deviceId);
+        if (remove) {
+            for (NetconfDeviceListener l : netconfDeviceListeners) {
+                l.deviceRemoved(deviceId);
+            }
         }
     }
 
     @Override
-    public void removeDevice(NetconfDeviceInfo deviceInfo) {
-        if (!netconfDeviceMap.containsKey(deviceInfo.getDeviceId())) {
-            log.warn("Device {} is not present", deviceInfo);
+    public void removeDevice(DeviceId deviceId) {
+        if (!netconfDeviceMap.containsKey(deviceId)) {
+            log.warn("Device {} is not present", deviceId);
+            for (NetconfDeviceListener l : netconfDeviceListeners) {
+                l.deviceRemoved(deviceId);
+            }
         } else {
-            netconfDeviceMap.remove(deviceInfo.getDeviceId());
+            netconfDeviceMap.remove(deviceId);
             for (NetconfDeviceListener l : netconfDeviceListeners) {
-                l.deviceRemoved(deviceInfo);
+                l.deviceRemoved(deviceId);
             }
         }
     }
 
     private NetconfDevice createDevice(NetconfDeviceInfo deviceInfo) throws NetconfException {
         NetconfDevice netconfDevice = deviceFactory.createNetconfDevice(deviceInfo);
+        netconfDeviceMap.put(deviceInfo.getDeviceId(), netconfDevice);
         for (NetconfDeviceListener l : netconfDeviceListeners) {
-            l.deviceAdded(deviceInfo);
+            l.deviceAdded(deviceInfo.getDeviceId());
         }
-        netconfDeviceMap.put(deviceInfo.getDeviceId(), netconfDevice);
         return netconfDevice;
     }
 
-    private void stopDevice(NetconfDeviceInfo deviceInfo) {
-        netconfDeviceMap.get(deviceInfo.getDeviceId()).disconnect();
-        netconfDeviceMap.remove(deviceInfo.getDeviceId());
-        for (NetconfDeviceListener l : netconfDeviceListeners) {
-            l.deviceRemoved(deviceInfo);
-        }
-    }
 
     @Override
     public Map<DeviceId, NetconfDevice> getDevicesMap() {
@@ -155,6 +206,8 @@ public class NetconfControllerImpl implements NetconfController {
         return netconfDeviceMap.keySet();
     }
 
+
+
     //Device factory for the specific NetconfDeviceImpl
     private class DefaultNetconfDeviceFactory implements NetconfDeviceFactory {
 
@@ -171,7 +224,7 @@ public class NetconfControllerImpl implements NetconfController {
         @Override
         public void event(NetconfDeviceOutputEvent event) {
             if (event.type().equals(NetconfDeviceOutputEvent.Type.DEVICE_UNREGISTERED)) {
-                removeDevice(event.getDeviceInfo());
+                removeDevice(event.getDeviceInfo().getDeviceId());
             }
         }
 

@@ -375,13 +375,12 @@ public class NetconfSessionImpl implements NetconfSession {
 
     private boolean close(boolean force) throws NetconfException {
         StringBuilder rpc = new StringBuilder();
-        rpc.append("<rpc>");
+        rpc.append("<rpc xmlns=\"urn:ietf:params:xml:ns:netconf:base:1.0\">");
         if (force) {
-            rpc.append("<kill-configuration/>");
+            rpc.append("<kill-session/>");
         } else {
-            rpc.append("<close-configuration/>");
+            rpc.append("<close-session/>");
         }
-        rpc.append("<close-configuration/>");
         rpc.append("</rpc>");
         rpc.append(ENDPATTERN);
         return checkReply(sendRequest(rpc.toString())) || close(true);

@@ -22,6 +22,8 @@ import org.junit.Before;
 import org.junit.Test;
 import org.onlab.packet.IpAddress;
 import org.onosproject.net.DeviceId;
+import org.onosproject.net.device.DeviceService;
+import org.onosproject.net.key.DeviceKeyService;
 import org.onosproject.netconf.NetconfDevice;
 import org.onosproject.netconf.NetconfDeviceFactory;
 import org.onosproject.netconf.NetconfDeviceInfo;
@@ -44,12 +46,14 @@ import static org.junit.Assert.*;
  * Unit tests for the Netconf controller implementation test.
  */
 public class NetconfControllerImplTest {
+
     NetconfControllerImpl ctrl;
 
     //DeviceInfo
     NetconfDeviceInfo deviceInfo1;
     NetconfDeviceInfo deviceInfo2;
     NetconfDeviceInfo badDeviceInfo3;
+    NetconfDeviceInfo deviceInfoIpV6;
 
     //Devices & DeviceId
     NetconfDevice device1;
@@ -68,21 +72,29 @@ public class NetconfControllerImplTest {
     private static final String DEVICE_1_IP = "10.10.10.11";
     private static final String DEVICE_2_IP = "10.10.10.12";
     private static final String BAD_DEVICE_IP = "10.10.10.13";
+    private static final String DEVICE_IPV6 = "2001:db8::1";
 
     private static final int DEVICE_1_PORT = 11;
     private static final int DEVICE_2_PORT = 12;
     private static final int BAD_DEVICE_PORT = 13;
+    private static final int IPV6_DEVICE_PORT = 14;
+
+    private static DeviceService deviceService = new NetconfDeviceServiceMock();
+    private static DeviceKeyService deviceKeyService = new NetconfDeviceKeyServiceMock();
 
 
     @Before
     public void setUp() throws Exception {
         ctrl = new NetconfControllerImpl();
         ctrl.deviceFactory = new TestNetconfDeviceFactory();
+        ctrl.deviceService = deviceService;
+        ctrl.deviceKeyService = deviceKeyService;
 
         //Creating mock devices
         deviceInfo1 = new NetconfDeviceInfo("device1", "001", IpAddress.valueOf(DEVICE_1_IP), DEVICE_1_PORT);
         deviceInfo2 = new NetconfDeviceInfo("device2", "002", IpAddress.valueOf(DEVICE_2_IP), DEVICE_2_PORT);
         badDeviceInfo3 = new NetconfDeviceInfo("device3", "003", IpAddress.valueOf(BAD_DEVICE_IP), BAD_DEVICE_PORT);
+        deviceInfoIpV6 = new NetconfDeviceInfo("deviceIpv6", "004", IpAddress.valueOf(DEVICE_IPV6), IPV6_DEVICE_PORT);
 
         device1 = new TestNetconfDevice(deviceInfo1);
         deviceId1 = deviceInfo1.getDeviceId();
@@ -168,7 +180,7 @@ public class NetconfControllerImplTest {
     public void testConnectBadDevice() throws Exception {
         reflectedDeviceMap.clear();
         try {
-            ctrl.connectDevice(badDeviceInfo3);
+            ctrl.connectDevice(badDeviceInfo3.getDeviceId());
         } finally {
             assertEquals("Incorrect device connection", 0, ctrl.getDevicesMap().size());
         }
@@ -180,21 +192,33 @@ public class NetconfControllerImplTest {
     @Test
     public void testConnectCorrectDevice() throws Exception {
         reflectedDeviceMap.clear();
-        ctrl.connectDevice(deviceInfo1);
-        ctrl.connectDevice(deviceInfo2);
+        ctrl.connectDevice(deviceInfo1.getDeviceId());
+        ctrl.connectDevice(deviceInfo2.getDeviceId());
         assertTrue("Incorrect device connection", ctrl.getDevicesMap().containsKey(deviceId1));
         assertTrue("Incorrect device connection", ctrl.getDevicesMap().containsKey(deviceId2));
         assertEquals("Incorrect device connection", 2, ctrl.getDevicesMap().size());
     }
 
+    /**
+     * Check for correct ipv6 device connection. In this case the device map get modified.
+     */
+    @Test
+    public void testConnectCorrectIpv6Device() throws Exception {
+        reflectedDeviceMap.clear();
+        ctrl.connectDevice(deviceInfoIpV6.getDeviceId());
+        assertTrue("Incorrect device connection", ctrl.getDevicesMap()
+                .containsKey(deviceInfoIpV6.getDeviceId()));
+        assertEquals("Incorrect device connection", 1, ctrl.getDevicesMap().size());
+    }
+
 
     /**
      * Check for connect devices already added to the map.
      */
     @Test
     public void testConnectAlreadyExistingDevice() throws Exception {
-        NetconfDevice alreadyExistingDevice1 = ctrl.connectDevice(deviceInfo1);
-        NetconfDevice alreadyExistingDevice2 = ctrl.connectDevice(deviceInfo2);
+        NetconfDevice alreadyExistingDevice1 = ctrl.connectDevice(deviceInfo1.getDeviceId());
+        NetconfDevice alreadyExistingDevice2 = ctrl.connectDevice(deviceInfo2.getDeviceId());
         assertEquals("Incorrect device connection", alreadyExistingDevice1.getDeviceInfo().getDeviceId(),
                      deviceInfo1.getDeviceId());
         assertEquals("Incorrect device connection", alreadyExistingDevice2.getDeviceInfo().getDeviceId(),
@@ -206,7 +230,7 @@ public class NetconfControllerImplTest {
      */
     @Test
     public void testDisconnectDevice() throws Exception {
-        ctrl.disconnectDevice(deviceInfo1);
+        ctrl.disconnectDevice(deviceInfo1.getDeviceId(), true);
         assertFalse("Incorrect device removal", ctrl.getDevicesMap().containsKey(deviceId1));
     }
 
@@ -215,7 +239,7 @@ public class NetconfControllerImplTest {
      */
     @Test
     public void testRemoveDevice() throws Exception {
-        ctrl.removeDevice(deviceInfo1);
+        ctrl.removeDevice(deviceInfo1.getDeviceId());
         assertFalse("Incorrect device removal", ctrl.getDevicesMap().containsKey(deviceId1));
     }
 
@@ -234,13 +258,13 @@ public class NetconfControllerImplTest {
     @Test
     public void testDeviceDownEventListener() throws Exception {
         reflectedDeviceMap.clear();
-        ctrl.connectDevice(deviceInfo1);
+        ctrl.connectDevice(deviceInfo1.getDeviceId());
         boolean result1 = reflectedDownListener.isRelevant(eventForDeviceInfo2);
         assertFalse("Irrelevant Device Event", result1);
         assertEquals("Incorrect device map size", 1, ctrl.getDevicesMap().size());
         reflectedDownListener.event(eventForDeviceInfo1);
         assertEquals("Incorrect device map size", 1, ctrl.getDevicesMap().size());
-        ctrl.connectDevice(deviceInfo2);
+        ctrl.connectDevice(deviceInfo2.getDeviceId());
         boolean result2 = reflectedDownListener.isRelevant(eventForDeviceInfo2);
         assertTrue("Irrelevant Device Event", result2);
         assertEquals("Incorrect device map size", 2, ctrl.getDevicesMap().size());
@@ -269,7 +293,7 @@ public class NetconfControllerImplTest {
 
         public TestNetconfDevice(NetconfDeviceInfo deviceInfo) throws NetconfException {
             netconfDeviceInfo = deviceInfo;
-            if (netconfDeviceInfo.ip() != badDeviceInfo3.ip()) {
+            if (!badDeviceInfo3.getDeviceId().equals(deviceInfo.getDeviceId())) {
                 netconfSession = EasyMock.createMock(NetconfSession.class);
                 deviceState = true;
             } else {

+/*
+ * 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.netconf.ctl;
+
+import org.onlab.packet.IpAddress;
+import org.onosproject.net.key.DeviceKey;
+import org.onosproject.net.key.DeviceKeyId;
+import org.onosproject.net.key.DeviceKeyListener;
+import org.onosproject.net.key.DeviceKeyService;
+import org.onosproject.netconf.NetconfDeviceInfo;
+
+import java.util.Collection;
+
+/**
+ * Mock DeviceKey service to return device keys.
+ */
+class NetconfDeviceKeyServiceMock implements DeviceKeyService {
+
+    private static final String DEVICE_1_IP = "10.10.10.11";
+    private static final String DEVICE_2_IP = "10.10.10.12";
+    private static final String BAD_DEVICE_IP = "10.10.10.13";
+    private static final String DEVICE_IPV6 = "2001:db8::1";
+
+    private static final int DEVICE_1_PORT = 11;
+    private static final int DEVICE_2_PORT = 12;
+    private static final int BAD_DEVICE_PORT = 13;
+    private static final int IPV6_DEVICE_PORT = 14;
+
+    //DeviceInfo
+    private NetconfDeviceInfo deviceInfo1 =
+            new NetconfDeviceInfo("device1", "001", IpAddress.valueOf(DEVICE_1_IP),
+                                  DEVICE_1_PORT);
+    private NetconfDeviceInfo deviceInfo2 =
+            new NetconfDeviceInfo("device2", "002", IpAddress.valueOf(DEVICE_2_IP),
+                                  DEVICE_2_PORT);
+    private NetconfDeviceInfo badDeviceInfo3 =
+            new NetconfDeviceInfo("device3", "003", IpAddress.valueOf(BAD_DEVICE_IP),
+                                  BAD_DEVICE_PORT);
+    private NetconfDeviceInfo deviceInfoIpV6 =
+            new NetconfDeviceInfo("deviceIpv6", "004", IpAddress.valueOf(DEVICE_IPV6), IPV6_DEVICE_PORT);
+
+    @Override
+    public Collection<DeviceKey> getDeviceKeys() {
+        return null;
+    }
+
+    @Override
+    public DeviceKey getDeviceKey(DeviceKeyId deviceKeyId) {
+        if (deviceKeyId.toString().equals(deviceInfo1.getDeviceId().toString())) {
+            return DeviceKey.createDeviceKeyUsingUsernamePassword(
+                    DeviceKeyId.deviceKeyId(deviceInfo1.getDeviceId().toString()),
+                    null, deviceInfo1.name(), deviceInfo1.password());
+        } else if (deviceKeyId.toString().equals(deviceInfo2.getDeviceId().toString())) {
+            return DeviceKey.createDeviceKeyUsingUsernamePassword(
+                    DeviceKeyId.deviceKeyId(deviceInfo2.getDeviceId().toString()),
+                    null, deviceInfo2.name(), deviceInfo2.password());
+        } else if (deviceKeyId.toString().equals(badDeviceInfo3.getDeviceId().toString())) {
+            return DeviceKey.createDeviceKeyUsingUsernamePassword(
+                    DeviceKeyId.deviceKeyId(badDeviceInfo3.getDeviceId().toString()),
+                    null, badDeviceInfo3.name(), badDeviceInfo3.password());
+        } else if (deviceKeyId.toString().equals(deviceInfoIpV6.getDeviceId().toString())) {
+            return DeviceKey.createDeviceKeyUsingUsernamePassword(
+                    DeviceKeyId.deviceKeyId(deviceInfoIpV6.getDeviceId().toString()),
+                    null, deviceInfoIpV6.name(), deviceInfoIpV6.password());
+        }
+        return null;
+    }
+
+    @Override
+    public void addListener(DeviceKeyListener listener) {
+
+    }
+
+    @Override
+    public void removeListener(DeviceKeyListener listener) {
+
+    }
+}

+/*
+ * 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.netconf.ctl;
+
+import org.onosproject.net.Device;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.MastershipRole;
+import org.onosproject.net.Port;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.device.DeviceListener;
+import org.onosproject.net.device.DeviceService;
+import org.onosproject.net.device.PortStatistics;
+
+import java.util.List;
+
+/**
+ * Mock device Service.
+ */
+class NetconfDeviceServiceMock implements DeviceService {
+
+    @Override
+    public int getDeviceCount() {
+        return 0;
+    }
+
+    @Override
+    public Iterable<Device> getDevices() {
+        return null;
+    }
+
+    @Override
+    public Iterable<Device> getDevices(Device.Type type) {
+        return null;
+    }
+
+    @Override
+    public Iterable<Device> getAvailableDevices() {
+        return null;
+    }
+
+    @Override
+    public Iterable<Device> getAvailableDevices(Device.Type type) {
+        return null;
+    }
+
+    @Override
+    public Device getDevice(DeviceId deviceId) {
+        return null;
+    }
+
+    @Override
+    public MastershipRole getRole(DeviceId deviceId) {
+        return null;
+    }
+
+    @Override
+    public List<Port> getPorts(DeviceId deviceId) {
+        return null;
+    }
+
+    @Override
+    public List<PortStatistics> getPortStatistics(DeviceId deviceId) {
+        return null;
+    }
+
+    @Override
+    public List<PortStatistics> getPortDeltaStatistics(DeviceId deviceId) {
+        return null;
+    }
+
+    @Override
+    public Port getPort(DeviceId deviceId, PortNumber portNumber) {
+        return null;
+    }
+
+    @Override
+    public boolean isAvailable(DeviceId deviceId) {
+        return false;
+    }
+
+    @Override
+    public void addListener(DeviceListener listener) {
+
+    }
+
+    @Override
+    public void removeListener(DeviceListener listener) {
+
+    }
+}
\ No newline at end of file