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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.EnumSet;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import org.apache.karaf.shell.commands.Argument;
import org.apache.karaf.shell.commands.Command;
import org.apache.karaf.shell.commands.Option;
import org.onlab.packet.Ethernet;
import org.onlab.packet.MacAddress;
import org.onosproject.cli.AbstractShellCommand;
import org.onosproject.net.ConnectPoint;
import org.onosproject.net.DeviceId;
import org.onosproject.net.PortNumber;
import org.onosproject.net.flow.DefaultTrafficSelector;
import org.onosproject.net.flow.DefaultTrafficTreatment;
import org.onosproject.net.flow.TrafficSelector;
import org.onosproject.net.flow.TrafficTreatment;
import org.onosproject.net.intent.Intent;
import org.onosproject.net.intent.IntentEvent;
import org.onosproject.net.intent.IntentEvent.Type;
import org.onosproject.net.intent.IntentListener;
import org.onosproject.net.intent.IntentService;
import org.onosproject.net.intent.Key;
import org.onosproject.net.intent.PointToPointIntent;
import com.google.common.collect.Lists;
import static org.onosproject.net.DeviceId.deviceId;
import static org.onosproject.net.PortNumber.portNumber;
/**
* Installs bulk point-to-point connectivity intents between given ingress/egress devices.
*/
@Command(scope = "onos", name = "push-test-intents",
description = "Installs random intents to test throughput")
public class IntentPushTestCommand extends AbstractShellCommand
implements IntentListener {
@Argument(index = 0, name = "ingressDevice",
description = "Ingress Device/Port Description",
required = true, multiValued = false)
String ingressDeviceString = null;
@Argument(index = 1, name = "egressDevice",
description = "Egress Device/Port Description",
required = true, multiValued = false)
String egressDeviceString = null;
@Argument(index = 2, name = "numberOfIntents",
description = "Number of intents to install/withdraw",
required = true, multiValued = false)
String numberOfIntents = null;
@Argument(index = 3, name = "keyOffset",
description = "Starting point for first key (default: 1)",
required = false, multiValued = false)
String keyOffsetStr = null;
@Option(name = "-i", aliases = "--install",
description = "Install intents",
required = false, multiValued = false)
private boolean installOnly = false;
@Option(name = "-w", aliases = "--withdraw",
description = "Withdraw intents",
required = false, multiValued = false)
private boolean withdrawOnly = false;
private IntentService service;
private CountDownLatch latch;
private volatile long start, end;
private int count;
private int keyOffset;
private boolean add;
@Override
protected void execute() {
service = get(IntentService.class);
DeviceId ingressDeviceId = deviceId(getDeviceId(ingressDeviceString));
PortNumber ingressPortNumber = portNumber(getPortNumber(ingressDeviceString));
ConnectPoint ingress = new ConnectPoint(ingressDeviceId, ingressPortNumber);
DeviceId egressDeviceId = deviceId(getDeviceId(egressDeviceString));
PortNumber egressPortNumber = portNumber(getPortNumber(egressDeviceString));
ConnectPoint egress = new ConnectPoint(egressDeviceId, egressPortNumber);
count = Integer.parseInt(numberOfIntents);
keyOffset = (keyOffsetStr != null) ? Integer.parseInt(keyOffsetStr) : 1;
service.addListener(this);
List<Intent> operations = generateIntents(ingress, egress);
boolean both = !(installOnly ^ withdrawOnly);
if (installOnly || both) {
add = true;
submitIntents(operations);
}
if (withdrawOnly || both) {
add = false;
submitIntents(operations);
}
service.removeListener(this);
}
private List<Intent> generateIntents(ConnectPoint ingress, ConnectPoint egress) {
TrafficSelector.Builder selectorBldr = DefaultTrafficSelector.builder()
.matchEthType(Ethernet.TYPE_IPV4);
TrafficTreatment treatment = DefaultTrafficTreatment.emptyTreatment();
List<Intent> intents = Lists.newArrayList();
for (int i = 0; i < count; i++) {
TrafficSelector selector = selectorBldr
.matchEthSrc(MacAddress.valueOf(i + keyOffset))
.build();
intents.add(PointToPointIntent.builder()
.appId(appId())
.key(Key.of(i + keyOffset, appId()))
.selector(selector)
.treatment(treatment)
.ingressPoint(ingress)
.egressPoint(egress)
.build());
}
return intents;
}
private void submitIntents(List<Intent> intents) {
latch = new CountDownLatch(count);
start = System.currentTimeMillis();
for (Intent intent : intents) {
if (add) {
service.submit(intent);
} else {
service.withdraw(intent);
}
}
try {
if (latch.await(500 + count * 30, TimeUnit.MILLISECONDS)) {
printResults(count);
} else {
print("Failure: %d intents not installed", latch.getCount());
}
} catch (InterruptedException e) {
print(e.toString());
}
}
private void printResults(int count) {
long delta = end - start;
String text = add ? "install" : "withdraw";
print("Time to %s %d intents: %d ms", text, count, delta);
}
/**
* Extracts the port number portion of the ConnectPoint.
*
* @param deviceString string representing the device/port
* @return port number as a string, empty string if the port is not found
*/
private String getPortNumber(String deviceString) {
int slash = deviceString.indexOf('/');
if (slash <= 0) {
return "";
}
return deviceString.substring(slash + 1, deviceString.length());
}
/**
* Extracts the device ID portion of the ConnectPoint.
*
* @param deviceString string representing the device/port
* @return device ID string
*/
private String getDeviceId(String deviceString) {
int slash = deviceString.indexOf('/');
if (slash <= 0) {
return "";
}
return deviceString.substring(0, slash);
}
private static final EnumSet<IntentEvent.Type> IGNORE_EVENT
= EnumSet.of(Type.INSTALL_REQ, Type.WITHDRAW_REQ);
@Override
public synchronized void event(IntentEvent event) {
if (!appId().equals(event.subject().appId())) {
// not my event, ignore
return;
}
Type expected = add ? Type.INSTALLED : Type.WITHDRAWN;
if (event.type() == expected) {
end = Math.max(end, event.time());
if (latch != null) {
if (latch.getCount() == 0) {
log.warn("Latch was already 0 before counting down?");
}
latch.countDown();
} else {
log.warn("install event latch is null");
}
} else if (IGNORE_EVENT.contains(event.type())) {
log.debug("Unexpected intent event: {}", event);
}
}
}
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