| /* |
| * Copyright 2018-present Open Networking Foundation |
| * |
| * 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.drivers.gnmi; |
| |
| import org.onosproject.gnmi.api.GnmiClient; |
| import org.onosproject.gnmi.api.GnmiController; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.MastershipRole; |
| import org.onosproject.net.device.DeviceHandshaker; |
| |
| import java.util.concurrent.CompletableFuture; |
| |
| /** |
| * Implementation of DeviceHandshaker for gNMI. |
| */ |
| public class GnmiHandshaker extends AbstractGnmiHandlerBehaviour implements DeviceHandshaker { |
| |
| @Override |
| public CompletableFuture<Boolean> isReachable() { |
| return CompletableFuture |
| // gNMI requires a client to be created to |
| // check for reachability. |
| .supplyAsync(super::createClient) |
| .thenApplyAsync(client -> { |
| if (client == null) { |
| return false; |
| } |
| return handler() |
| .get(GnmiController.class) |
| .isReachable(handler().data().deviceId()); |
| }); |
| } |
| |
| @Override |
| public void roleChanged(MastershipRole newRole) { |
| throw new UnsupportedOperationException("Mastership operation not supported"); |
| } |
| |
| @Override |
| public MastershipRole getRole() { |
| throw new UnsupportedOperationException("Mastership operation not supported"); |
| } |
| |
| @Override |
| public CompletableFuture<Boolean> connect() { |
| return CompletableFuture |
| .supplyAsync(super::createClient) |
| .thenComposeAsync(client -> { |
| if (client == null) { |
| return CompletableFuture.completedFuture(false); |
| } |
| return CompletableFuture.completedFuture(true); |
| }); |
| } |
| |
| @Override |
| public boolean isConnected() { |
| final GnmiController controller = handler().get(GnmiController.class); |
| final DeviceId deviceId = handler().data().deviceId(); |
| final GnmiClient client = controller.getClient(deviceId); |
| |
| if (client == null) { |
| return false; |
| } |
| |
| return getFutureWithDeadline( |
| client.isServiceAvailable(), |
| "checking if gNMI service is available", false); |
| } |
| |
| @Override |
| public CompletableFuture<Boolean> disconnect() { |
| final GnmiController controller = handler().get(GnmiController.class); |
| final DeviceId deviceId = handler().data().deviceId(); |
| final GnmiClient client = controller.getClient(deviceId); |
| if (client == null) { |
| return CompletableFuture.completedFuture(true); |
| } |
| return client.shutdown() |
| .thenApplyAsync(v -> { |
| controller.removeClient(deviceId); |
| return true; |
| }); |
| } |
| } |