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/*
* Copyright (c) 2016 Cisco and/or its affiliates.
*
* 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 io.fd.jvpp.core.examples;
import static io.fd.jvpp.core.examples.NotificationUtils.getChangeInterfaceState;
import static io.fd.jvpp.core.examples.NotificationUtils.getDisableInterfaceNotificationsReq;
import static io.fd.jvpp.core.examples.NotificationUtils.getEnableInterfaceNotificationsReq;
import io.fd.jvpp.JVppRegistry;
import io.fd.jvpp.JVppRegistryImpl;
import io.fd.jvpp.core.JVppCoreImpl;
import io.fd.jvpp.core.future.FutureJVppCoreFacade;
import io.fd.jvpp.core.callback.SwInterfaceEventCallback;
import io.fd.jvpp.core.dto.SwInterfaceEvent;
import io.fd.jvpp.VppCallbackException;
public class FutureApiNotificationExample {
private static void testFutureApi() throws Exception {
System.out.println("Testing Java future API for notifications");
try (final JVppRegistry registry = new JVppRegistryImpl("FutureApiNotificationExample");
final FutureJVppCoreFacade jvppFacade = new FutureJVppCoreFacade(registry, new JVppCoreImpl());
final AutoCloseable notificationListenerReg =
jvppFacade.getEventRegistry()
.registerSwInterfaceEventCallback(new SwInterfaceEventCallback() {
public void onSwInterfaceEvent(SwInterfaceEvent reply) {
System.out.printf("Received interface notification: ifc: %s%n", reply);
}
public void onError (VppCallbackException ex) {
System.out.printf("Received onError exception: call=%s, context=%d, retval=%d%n",
ex.getMethodName(), ex.getCtxId(), ex.getErrorCode());
}
})) {
System.out.println("Successfully connected to VPP");
jvppFacade.wantInterfaceEvents(getEnableInterfaceNotificationsReq()).toCompletableFuture().get();
System.out.println("Interface events started");
System.out.println("Changing interface configuration");
jvppFacade.swInterfaceSetFlags(getChangeInterfaceState()).toCompletableFuture().get();
Thread.sleep(1000);
jvppFacade.wantInterfaceEvents(getDisableInterfaceNotificationsReq()).toCompletableFuture().get();
System.out.println("Interface events stopped");
System.out.println("Disconnecting...");
}
}
public static void main(String[] args) throws Exception {
testFutureApi();
}
}
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