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/*
* Copyright 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.rest.resources;
import org.onosproject.net.DeviceId;
import org.onosproject.net.ElementId;
import org.onosproject.net.HostId;
import org.onosproject.net.topology.PathService;
import org.onosproject.rest.AbstractWebResource;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import java.util.Set;
/**
* Compute paths in the network graph.
*/
@Path("paths")
public class PathsWebResource extends AbstractWebResource {
/**
* Determines if the id appears to be the id of a host.
* Host id format is 00:00:00:00:00:01/-1
*
* @param id id string
* @return HostId if the id is valid, null otherwise
*/
private HostId isHostId(String id) {
return id.matches("..:..:..:..:..:../.*") ? HostId.hostId(id) : null;
}
/**
* Returns either host id or device id, depending on the ID format.
*
* @param id host or device id string
* @return element id
*/
private ElementId elementId(String id) {
ElementId elementId = isHostId(id);
return elementId != null ? elementId : DeviceId.deviceId(id);
}
/**
* Get all shortest paths between any two hosts or devices.
* Returns array of all shortest paths between any two elements.
* @rsModel Paths
* @param src source identifier
* @param dst destination identifier
* @return path data
*/
@GET
@Produces(MediaType.APPLICATION_JSON)
@Path("{src}/{dst}")
public Response getPath(@PathParam("src") String src,
@PathParam("dst") String dst) {
PathService pathService = get(PathService.class);
Set<org.onosproject.net.Path> paths =
pathService.getPaths(elementId(src), elementId(dst));
return ok(encodeArray(org.onosproject.net.Path.class, "paths", paths)).build();
}
/**
* Get all shortest disjoint paths between any two hosts or devices.
* Returns array of all shortest disjoint paths between any two elements.
* @rsModel Paths
* @param src source identifier
* @param dst destination identifier
* @return path data
*/
@GET
@Produces(MediaType.APPLICATION_JSON)
@Path("{src}/{dst}/disjoint")
public Response getDisjointPath(@PathParam("src") String src,
@PathParam("dst") String dst) {
PathService pathService = get(PathService.class);
Set<org.onosproject.net.DisjointPath> paths =
pathService.getDisjointPaths(elementId(src), elementId(dst));
return ok(encodeArray(org.onosproject.net.DisjointPath.class, "paths", paths)).build();
}
}
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