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/*
* Copyright 2014-2015 Open Networking Laboratory
*
* 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.cli.net;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import org.apache.karaf.shell.commands.Argument;
import org.apache.karaf.shell.commands.Command;
import org.onosproject.cli.AbstractShellCommand;
import org.onosproject.core.ApplicationId;
import org.onosproject.core.CoreService;
import org.onosproject.net.Host;
import org.onosproject.net.host.HostService;
import org.onosproject.net.intent.HostToHostIntent;
import org.onosproject.net.intent.Intent;
import org.onosproject.net.intent.IntentService;
import com.google.common.collect.Lists;
/**
* Installs bulk point-to-point connectivity intents between random ingress/egress devices.
*/
@Command(scope = "onos", name = "push-random-intents",
description = "Installs random intents to test throughput")
public class RandomIntentCommand extends AbstractShellCommand {
@Argument(index = 0, name = "count",
description = "Number of intents to push",
required = true, multiValued = false)
String countString = null;
private IntentService service;
private HostService hostService;
private int count;
@Override
protected void execute() {
service = get(IntentService.class);
hostService = get(HostService.class);
count = Integer.parseInt(countString);
if (count > 0) {
Collection<Intent> intents = generateIntents();
submitIntents(intents);
} else {
withdrawIntents();
}
}
private Collection<Intent> generateIntents() {
List<Host> hosts = Lists.newArrayList(hostService.getHosts());
List<Intent> fullMesh = Lists.newArrayList();
for (int i = 0; i < hosts.size(); i++) {
for (int j = i + 1; j < hosts.size(); j++) {
fullMesh.add(HostToHostIntent.builder()
.appId(appId())
.one(hosts.get(i).id())
.two(hosts.get(j).id())
.build());
}
}
Collections.shuffle(fullMesh);
return fullMesh.subList(0, Math.min(count, fullMesh.size()));
}
private void submitIntents(Collection<Intent> intents) {
for (Intent intent : intents) {
service.submit(intent);
}
print("Submitted %d host to host intents.", intents.size());
}
private void withdrawIntents() {
for (Intent intent : service.getIntents()) {
if (appId().equals(intent.appId())) {
service.withdraw(intent);
}
}
print("Withdrew all randomly generated host to host intents.");
}
@Override
protected ApplicationId appId() {
return get(CoreService.class).registerApplication("org.onosproject.cli-random");
}
}
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