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/*
* Copyright 2016-present 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.provider.nil.cli;
import org.apache.karaf.shell.commands.Argument;
import org.apache.karaf.shell.commands.Command;
import org.onlab.packet.IpAddress;
import org.onosproject.cli.AbstractShellCommand;
import org.onosproject.net.ConnectPoint;
import org.onosproject.net.DeviceId;
import org.onosproject.net.HostId;
import org.onosproject.net.HostLocation;
import org.onosproject.net.config.NetworkConfigService;
import org.onosproject.net.config.basics.BasicHostConfig;
import org.onosproject.net.edge.EdgePortService;
import org.onosproject.net.host.HostService;
import org.onosproject.provider.nil.CustomTopologySimulator;
import org.onosproject.provider.nil.NullProviders;
import org.onosproject.provider.nil.TopologySimulator;
import java.util.Iterator;
/**
* Adds a simulated end-station host to the custom topology simulation.
*/
@Command(scope = "onos", name = "null-create-host",
description = "Adds a simulated end-station host to the custom topology simulation")
public class CreateNullHost extends AbstractShellCommand {
@Argument(index = 0, name = "deviceName", description = "Name of device where host is attached",
required = true, multiValued = false)
String deviceName = null;
@Argument(index = 1, name = "hostIp", description = "Host IP address",
required = true, multiValued = false)
String hostIp = null;
@Argument(index = 2, name = "latitude", description = "Geo latitude",
required = true, multiValued = false)
Double latitude = null;
@Argument(index = 3, name = "longitude", description = "Geo longitude",
required = true, multiValued = false)
Double longitude = null;
@Override
protected void execute() {
NullProviders service = get(NullProviders.class);
NetworkConfigService cfgService = get(NetworkConfigService.class);
TopologySimulator simulator = service.currentSimulator();
if (!(simulator instanceof CustomTopologySimulator)) {
error("Custom topology simulator is not active.");
return;
}
CustomTopologySimulator sim = (CustomTopologySimulator) simulator;
DeviceId deviceId = sim.deviceId(deviceName);
HostId id = sim.nextHostId();
HostLocation location = findAvailablePort(deviceId);
BasicHostConfig cfg = cfgService.addConfig(id, BasicHostConfig.class);
cfg.latitude(latitude);
cfg.longitude(longitude);
cfg.apply();
sim.createHost(id, location, IpAddress.valueOf(hostIp));
}
// Finds an available connect point among edge ports of the specified device
private HostLocation findAvailablePort(DeviceId deviceId) {
EdgePortService eps = get(EdgePortService.class);
HostService hs = get(HostService.class);
Iterator<ConnectPoint> points = eps.getEdgePoints(deviceId).iterator();
while (points.hasNext()) {
ConnectPoint point = points.next();
if (hs.getConnectedHosts(point).isEmpty()) {
return new HostLocation(point, System.currentTimeMillis());
}
}
return null;
}
}