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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 org.apache.karaf.shell.commands.Argument;
import org.apache.karaf.shell.commands.Command;
import org.onosproject.cli.AbstractShellCommand;
import org.onosproject.net.Link;
import org.onosproject.net.link.LinkService;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import static org.onosproject.net.DeviceId.deviceId;
/**
* Lists all infrastructure links.
*/
@Command(scope = "onos", name = "links",
description = "Lists all infrastructure links")
public class LinksListCommand extends AbstractShellCommand {
private static final String FMT = "src=%s/%s, dst=%s/%s, type=%s, state=%s%s";
private static final String COMPACT = "%s/%s-%s/%s";
@Argument(index = 0, name = "uri", description = "Device ID",
required = false, multiValued = false)
String uri = null;
@Override
protected void execute() {
LinkService service = get(LinkService.class);
Iterable<Link> links = uri != null ?
service.getDeviceLinks(deviceId(uri)) : service.getLinks();
if (outputJson()) {
print("%s", json(this, links));
} else {
for (Link link : links) {
print(linkString(link));
}
}
}
/**
* Produces a JSON array containing the specified links.
*
* @param context context to use for looking up codecs
* @param links collection of links
* @return JSON array
*/
public static JsonNode json(AbstractShellCommand context, Iterable<Link> links) {
ObjectMapper mapper = new ObjectMapper();
ArrayNode result = mapper.createArrayNode();
links.forEach(link -> result.add(context.jsonForEntity(link, Link.class)));
return result;
}
/**
* Produces a JSON object for the specified link.
*
* @param context context to use for looking up codecs
* @param link link to encode
* @return JSON object
*/
public static ObjectNode json(AbstractShellCommand context, Link link) {
return context.jsonForEntity(link, Link.class);
}
/**
* Returns a formatted string representing the given link.
*
* @param link infrastructure link
* @return formatted link string
*/
public static String linkString(Link link) {
return String.format(FMT, link.src().deviceId(), link.src().port(),
link.dst().deviceId(), link.dst().port(),
link.type(), link.state(),
annotations(link.annotations()));
}
/**
* Returns a compact string representing the given link.
*
* @param link infrastructure link
* @return formatted link string
*/
public static String compactLinkString(Link link) {
return String.format(COMPACT, link.src().deviceId(), link.src().port(),
link.dst().deviceId(), link.dst().port());
}
}
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