oleksandr.yashchuk@plvision.eu | 3dbcaaf | 2019-03-13 14:44:46 +0200 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2019-present Open Networking Foundation |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package org.onosproject.drivers.gnoi; |
| 18 | |
| 19 | import org.onosproject.gnoi.api.GnoiClient; |
| 20 | import org.onosproject.gnoi.api.GnoiClientKey; |
| 21 | import org.onosproject.gnoi.api.GnoiController; |
| 22 | import org.onosproject.net.MastershipRole; |
| 23 | import org.onosproject.net.device.DeviceHandshaker; |
| 24 | |
| 25 | import java.util.concurrent.CompletableFuture; |
| 26 | |
| 27 | import static java.util.concurrent.CompletableFuture.completedFuture; |
| 28 | |
| 29 | /** |
| 30 | * Implementation of DeviceHandshaker for gNOI. |
| 31 | */ |
| 32 | public class GnoiHandshaker extends AbstractGnoiHandlerBehaviour implements DeviceHandshaker { |
| 33 | |
| 34 | @Override |
| 35 | public boolean isReachable() { |
| 36 | final GnoiClient client = getClientByKey(); |
| 37 | return client != null && client.isServerReachable(); |
| 38 | } |
| 39 | |
| 40 | @Override |
| 41 | public CompletableFuture<Boolean> probeReachability() { |
| 42 | final GnoiClient client = getClientByKey(); |
| 43 | if (client == null) { |
| 44 | return completedFuture(false); |
| 45 | } |
| 46 | return client.probeService(); |
| 47 | } |
| 48 | |
| 49 | @Override |
| 50 | public boolean isAvailable() { |
| 51 | return isReachable(); |
| 52 | } |
| 53 | |
| 54 | @Override |
| 55 | public CompletableFuture<Boolean> probeAvailability() { |
| 56 | return probeReachability(); |
| 57 | } |
| 58 | |
| 59 | @Override |
| 60 | public void roleChanged(MastershipRole newRole) { |
| 61 | throw new UnsupportedOperationException("Mastership operation not supported"); |
| 62 | } |
| 63 | |
| 64 | @Override |
| 65 | public MastershipRole getRole() { |
| 66 | throw new UnsupportedOperationException("Mastership operation not supported"); |
| 67 | } |
| 68 | |
| 69 | @Override |
| 70 | public CompletableFuture<Boolean> connect() { |
| 71 | return CompletableFuture.supplyAsync(this::createClient); |
| 72 | } |
| 73 | |
| 74 | private boolean createClient() { |
| 75 | GnoiClientKey clientKey = clientKey(); |
| 76 | if (clientKey == null) { |
| 77 | return false; |
| 78 | } |
| 79 | if (!handler().get(GnoiController.class).createClient(clientKey)) { |
| 80 | log.warn("Unable to create client for {}", |
| 81 | handler().data().deviceId()); |
| 82 | return false; |
| 83 | } |
| 84 | return true; |
| 85 | } |
| 86 | |
| 87 | @Override |
| 88 | public boolean isConnected() { |
| 89 | return getClientByKey() != null; |
| 90 | } |
| 91 | |
| 92 | @Override |
| 93 | public void disconnect() { |
| 94 | handler().get(GnoiController.class) |
| 95 | .removeClient(handler().data().deviceId()); |
| 96 | } |
| 97 | } |