2 * Copyright (c) 2016 Cisco and/or its affiliates.
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:
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 package io.fd.vpp.jvpp.core.examples;
19 import static io.fd.vpp.jvpp.core.examples.NotificationUtils.getChangeInterfaceState;
20 import static io.fd.vpp.jvpp.core.examples.NotificationUtils.getDisableInterfaceNotificationsReq;
21 import static io.fd.vpp.jvpp.core.examples.NotificationUtils.getEnableInterfaceNotificationsReq;
22 import static io.fd.vpp.jvpp.core.examples.NotificationUtils.printNotification;
24 import io.fd.vpp.jvpp.JVpp;
25 import io.fd.vpp.jvpp.JVppRegistry;
26 import io.fd.vpp.jvpp.JVppRegistryImpl;
27 import io.fd.vpp.jvpp.VppCallbackException;
28 import io.fd.vpp.jvpp.core.JVppCoreImpl;
29 import io.fd.vpp.jvpp.core.callback.SwInterfaceEventCallback;
30 import io.fd.vpp.jvpp.core.callback.WantInterfaceEventsReplyCallback;
31 import io.fd.vpp.jvpp.core.dto.SwInterfaceEvent;
32 import io.fd.vpp.jvpp.core.dto.SwInterfaceSetFlagsReply;
33 import io.fd.vpp.jvpp.core.dto.WantInterfaceEventsReply;
35 public class CallbackNotificationApiExample {
37 private static void testCallbackApi() throws Exception {
38 System.out.println("Testing Java callback API for notifications");
39 try (final JVppRegistry registry = new JVppRegistryImpl("CallbackNotificationApiExample");
40 final JVpp jvpp = new JVppCoreImpl()) {
41 registry.register(jvpp, new TestCallback());
42 System.out.println("Successfully connected to VPP");
44 getEnableInterfaceNotificationsReq().send(jvpp);
45 System.out.println("Interface notifications started");
46 // TODO test ifc dump which also triggers interface flags send
48 System.out.println("Changing interface configuration");
49 getChangeInterfaceState().send(jvpp);
51 // Notifications are received
54 getDisableInterfaceNotificationsReq().send(jvpp);
55 System.out.println("Interface events stopped");
58 System.out.println("Disconnecting...");
63 public static void main(String[] args) throws Exception {
67 private static class TestCallback implements SwInterfaceEventCallback,
68 WantInterfaceEventsReplyCallback {
71 public void onSwInterfaceEvent(
72 final SwInterfaceEvent msg) {
73 printNotification(msg);
77 public void onWantInterfaceEventsReply(final WantInterfaceEventsReply wantInterfaceEventsReply) {
78 System.out.println("Interface notification stream updated");
82 public void onError(VppCallbackException ex) {
83 System.out.printf("Received onError exception in getNodeIndexCallback: call=%s, reply=%d, context=%d%n",
84 ex.getMethodName(), ex.getErrorCode(), ex.getCtxId());