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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.rest.resources;
import org.onosproject.net.ConnectPoint;
import org.onosproject.net.DeviceId;
import org.onosproject.net.Link;
import org.onosproject.net.link.LinkService;
import org.onosproject.rest.AbstractWebResource;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Response;
import static org.onosproject.net.DeviceId.deviceId;
import static org.onosproject.net.PortNumber.portNumber;
/**
* Manage inventory of infrastructure links.
*/
@Path("links")
public class LinksWebResource extends AbstractWebResource {
enum Direction {
ALL,
INGRESS,
EGRESS
}
/**
* Get infrastructure links.
* Returns array of all links, or links for the specified device or port.
* @rsModel LinksGet
* @param deviceId (optional) device identifier
* @param port (optional) port number
* @param direction (optional) direction qualifier
* @return 200 OK
*/
@GET
public Response getLinks(@QueryParam("device") String deviceId,
@QueryParam("port") String port,
@QueryParam("direction") String direction) {
LinkService service = get(LinkService.class);
Iterable<Link> links;
if (deviceId != null && port != null) {
links = getConnectPointLinks(new ConnectPoint(deviceId(deviceId),
portNumber(port)),
direction, service);
} else if (deviceId != null) {
links = getDeviceLinks(deviceId(deviceId), direction, service);
} else {
links = service.getLinks();
}
return ok(encodeArray(Link.class, "links", links)).build();
}
private Iterable<Link> getConnectPointLinks(ConnectPoint point,
String direction,
LinkService service) {
Direction dir = direction != null ?
Direction.valueOf(direction.toUpperCase()) : Direction.ALL;
switch (dir) {
case INGRESS:
return service.getIngressLinks(point);
case EGRESS:
return service.getEgressLinks(point);
default:
return service.getLinks(point);
}
}
private Iterable<Link> getDeviceLinks(DeviceId deviceId,
String direction,
LinkService service) {
Direction dir = direction != null ?
Direction.valueOf(direction.toUpperCase()) : Direction.ALL;
switch (dir) {
case INGRESS:
return service.getDeviceIngressLinks(deviceId);
case EGRESS:
return service.getDeviceEgressLinks(deviceId);
default:
return service.getDeviceLinks(deviceId);
}
}
}
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