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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 io.fd.jvpp.JVppRegistry;
import io.fd.jvpp.JVppRegistryImpl;
import io.fd.jvpp.core.JVppCoreImpl;
import io.fd.jvpp.core.dto.BridgeDomainDetailsReplyDump;
import io.fd.jvpp.core.dto.BridgeDomainDump;
import io.fd.jvpp.core.dto.GetNodeIndex;
import io.fd.jvpp.core.dto.GetNodeIndexReply;
import io.fd.jvpp.core.dto.ShowVersion;
import io.fd.jvpp.core.dto.ShowVersionReply;
import io.fd.jvpp.core.dto.SwInterfaceDetails;
import io.fd.jvpp.core.dto.SwInterfaceDetailsReplyDump;
import io.fd.jvpp.core.dto.SwInterfaceDump;
import io.fd.jvpp.core.future.FutureJVppCoreFacade;
import java.nio.charset.StandardCharsets;
import java.util.Objects;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.Future;
import java.util.logging.Level;
import java.util.logging.Logger;
public class FutureApiExample {
private static final Logger LOG = Logger.getLogger(FutureApiExample.class.getName());
private static void testShowVersion(final FutureJVppCoreFacade jvpp) throws Exception {
LOG.info("Sending ShowVersion request...");
final Future<ShowVersionReply> replyFuture = jvpp.showVersion(new ShowVersion()).toCompletableFuture();
final ShowVersionReply reply = replyFuture.get();
LOG.info(
String.format(
"Received ShowVersionReply: context=%d, program=%s, version=%s, buildDate=%s, buildDirectory=%s%n",
reply.context, reply.program,
reply.version,
reply.buildDate,
reply.buildDirectory));
}
private static void testEmptyBridgeDomainDump(final FutureJVppCoreFacade jvpp) throws Exception {
LOG.info("Sending ShowVersion request...");
final BridgeDomainDump request = new BridgeDomainDump();
request.bdId = -1; // dump call
final CompletableFuture<BridgeDomainDetailsReplyDump>
replyFuture = jvpp.bridgeDomainDump(request).toCompletableFuture();
final BridgeDomainDetailsReplyDump reply = replyFuture.get();
if (reply == null || reply.bridgeDomainDetails == null) {
LOG.severe("Received null response for empty dump: " + reply);
} else {
LOG.info(
String.format(
"Received bridge-domain dump reply with list of bridge-domains: %s",
reply.bridgeDomainDetails));
}
}
private static void testGetNodeIndex(final FutureJVppCoreFacade jvpp) {
LOG.info("Sending GetNodeIndex request...");
final GetNodeIndex request = new GetNodeIndex();
request.nodeName = "non-existing-node".getBytes(StandardCharsets.UTF_8);
final Future<GetNodeIndexReply> replyFuture = jvpp.getNodeIndex(request).toCompletableFuture();
try {
final GetNodeIndexReply reply = replyFuture.get();
LOG.info(
String.format(
"Received GetNodeIndexReply: context=%d, nodeIndex=%d%n", reply.context, reply.nodeIndex));
} catch (Exception e) {
LOG.log(Level.SEVERE, "GetNodeIndex request failed", e);
}
}
private static void testSwInterfaceDump(final FutureJVppCoreFacade jvpp) throws Exception {
LOG.info("Sending SwInterfaceDump request...");
final SwInterfaceDump request = new SwInterfaceDump();
request.nameFilterValid = false;
request.nameFilter = "";
final Future<SwInterfaceDetailsReplyDump> replyFuture = jvpp.swInterfaceDump(request).toCompletableFuture();
final SwInterfaceDetailsReplyDump reply = replyFuture.get();
for (SwInterfaceDetails details : reply.swInterfaceDetails) {
Objects.requireNonNull(details, "reply.swInterfaceDetails contains null element!");
LOG.info(
String.format("Received SwInterfaceDetails: interfaceName=%s, l2AddressLength=%d, flags=%s, "
+ "linkSpeed=%d, linkMtu=%d%n",
details.interfaceName,
details.l2Address.macaddress.length, details.flags.getOptions(),
details.linkSpeed, (int) details.linkMtu));
}
}
private static void testFutureApi() throws Exception {
LOG.info("Testing Java future API");
try (final JVppRegistry registry = new JVppRegistryImpl("FutureApiExample");
final FutureJVppCoreFacade jvppFacade = new FutureJVppCoreFacade(registry, new JVppCoreImpl())) {
LOG.info("Successfully connected to VPP");
testEmptyBridgeDomainDump(jvppFacade);
testShowVersion(jvppFacade);
testGetNodeIndex(jvppFacade);
testSwInterfaceDump(jvppFacade);
LOG.info("Disconnecting...");
}
}
public static void main(String[] args) throws Exception {
testFutureApi();
}
}
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