TopologyCommand.java
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/*
* Copyright 2014 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 com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.karaf.shell.commands.Command;
import org.apache.karaf.shell.commands.Option;
import org.onosproject.cli.AbstractShellCommand;
import org.onosproject.net.topology.Topology;
import org.onosproject.net.topology.TopologyProvider;
import org.onosproject.net.topology.TopologyService;
/**
* Lists summary of the current topology.
*/
@Command(scope = "onos", name = "topology",
description = "Lists summary of the current topology")
public class TopologyCommand extends AbstractShellCommand {
private static final String FMT =
"time=%s, devices=%d, links=%d, clusters=%d, paths=%d";
@Option(name = "-r", aliases = "--recompute", description = "Trigger topology re-computation",
required = false, multiValued = false)
private boolean recompute = false;
protected TopologyService service;
protected Topology topology;
/**
* Initializes the context for all cluster commands.
*/
protected void init() {
service = get(TopologyService.class);
topology = service.currentTopology();
}
@Override
protected void execute() {
init();
if (recompute) {
get(TopologyProvider.class).triggerRecompute();
} else if (outputJson()) {
print("%s", new ObjectMapper().createObjectNode()
.put("time", topology.time())
.put("deviceCount", topology.deviceCount())
.put("linkCount", topology.linkCount())
.put("clusterCount", topology.clusterCount())
.put("pathCount", topology.pathCount()));
} else {
print(FMT, topology.time(), topology.deviceCount(), topology.linkCount(),
topology.clusterCount(), topology.pathCount());
}
}
}