Examples with Link org.btrplace.model.view.network.Link used on opensource projects

Example 1 with Link

use of org.btrplace.model.view.network.Link in project scheduler by btrplace.

the class NetworkTest method defaultTest.

/**
 * Test the instantiation and the creation of the objects using the default routing implementation.
 */
@Test
public void defaultTest() {
    Model mo = new DefaultModel();
    Network net = new Network();
    Switch s = net.newSwitch(1000);
    Node n1 = mo.newNode();
    Node n2 = mo.newNode();
    net.connect(2000, s, n1, n2);
    Assert.assertNull(Network.get(mo));
    mo.attach(net);
    Assert.assertEquals(Network.get(mo), net);
    Assert.assertTrue(net.getSwitches().size() == 1);
    Assert.assertEquals(net.getSwitches().get(0), s);
    Assert.assertTrue(s.getCapacity() == 1000);
    Assert.assertTrue(net.getLinks().size() == 2);
    Assert.assertTrue(net.getLinks().size() == 2);
    for (Link l : net.getLinks()) {
        Assert.assertTrue(l.getCapacity() == 2000);
        Assert.assertTrue(l.getSwitch().equals(s) || l.getElement() instanceof Switch);
    }
    Assert.assertTrue(net.getRouting().getPath(n1, n2).size() == 2);
    Assert.assertTrue(net.getRouting().getPath(n1, n2).containsAll(net.getLinks()));
}

Example 2 with Link

use of org.btrplace.model.view.network.Link in project scheduler by btrplace.

the class NetworkTest method staticRoutingTest.

/**
 * Test the static routing implementation.
 */
@Test
public void staticRoutingTest() {
    Model mo = new DefaultModel();
    Network net = new Network(new StaticRouting());
    Switch s = net.newSwitch(1000);
    Node n1 = mo.newNode();
    Node n2 = mo.newNode();
    net.connect(2000, s, n1, n2);
    Map<Link, Boolean> route = new LinkedHashMap<>();
    route.put(net.getConnectedLinks(n1).get(0), true);
    route.put(net.getConnectedLinks(n2).get(0), false);
    ((StaticRouting) net.getRouting()).setStaticRoute(new StaticRouting.NodesMap(n1, n2), route);
    mo.attach(net);
    Assert.assertTrue(net.getRouting().getPath(n1, n2).size() == 2);
    Assert.assertTrue(net.getRouting().getPath(n1, n2).containsAll(net.getLinks()));
}

Example 3 with Link

use of org.btrplace.model.view.network.Link in project scheduler by btrplace.

the class CNetwork method addLinkConstraints.

/**
 * Add the cumulative constraints for each link.
 *
 * Full-duplex links are considered, two cumulative constraints are defined per link by looking at
 * the migration direction for each link on the migration path.
 *
 * @param rp the reconfiguration problem
 */
private void addLinkConstraints(ReconfigurationProblem rp) {
    // Links limitation
    List<Task> tasksListUp = new ArrayList<>();
    List<Task> tasksListDown = new ArrayList<>();
    List<IntVar> heightsListUp = new ArrayList<>();
    List<IntVar> heightsListDown = new ArrayList<>();
    for (Link l : net.getLinks()) {
        for (VM vm : rp.getVMs()) {
            VMTransition a = rp.getVMAction(vm);
            if (a instanceof RelocatableVM && !a.getDSlice().getHoster().isInstantiatedTo(a.getCSlice().getHoster().getValue())) {
                Node src = source.getMapping().getVMLocation(vm);
                Node dst = rp.getNode(a.getDSlice().getHoster().getValue());
                List<Link> path = net.getRouting().getPath(src, dst);
                // Check first if the link is on migration path
                if (path.contains(l)) {
                    // Get link direction
                    LinkDirection linkDirection = net.getRouting().getLinkDirection(src, dst, l);
                    // UpLink
                    if (linkDirection == LinkDirection.UPLINK) {
                        tasksListUp.add(((RelocatableVM) a).getMigrationTask());
                        heightsListUp.add(((RelocatableVM) a).getBandwidth());
                    } else // DownLink
                    {
                        tasksListDown.add(((RelocatableVM) a).getMigrationTask());
                        heightsListDown.add(((RelocatableVM) a).getBandwidth());
                    }
                }
            }
        }
        if (!tasksListUp.isEmpty()) {
            // Post the cumulative constraint for the current UpLink
            csp.post(csp.cumulative(tasksListUp.toArray(new Task[tasksListUp.size()]), heightsListUp.toArray(new IntVar[heightsListUp.size()]), csp.intVar(l.getCapacity()), true));
            tasksListUp.clear();
            heightsListUp.clear();
        }
        if (!tasksListDown.isEmpty()) {
            // Post the cumulative constraint for the current DownLink
            csp.post(csp.cumulative(tasksListDown.toArray(new Task[tasksListDown.size()]), heightsListDown.toArray(new IntVar[heightsListDown.size()]), csp.intVar(l.getCapacity()), true));
            tasksListDown.clear();
            heightsListDown.clear();
        }
    }
}

Example 4 with Link

use of org.btrplace.model.view.network.Link in project scheduler by btrplace.

the class StaticRoutingConverter method toJSON.

/**
 * Convert a Routing implementation into a JSON object
 *
 * @param routing the routing implementation to convert
 * @return the JSON formatted routing object
 */
@Override
public JSONObject toJSON(StaticRouting routing) {
    JSONObject o = new JSONObject();
    o.put("type", getJSONId());
    JSONArray a = new JSONArray();
    Map<StaticRouting.NodesMap, Map<Link, Boolean>> routes = routing.getStaticRoutes();
    for (Map.Entry<StaticRouting.NodesMap, Map<Link, Boolean>> e : routes.entrySet()) {
        StaticRouting.NodesMap nm = e.getKey();
        JSONObject ao = new JSONObject();
        ao.put("nodes_map", nodesMapToJSON(nm));
        JSONArray links = new JSONArray();
        Map<Link, Boolean> v = e.getValue();
        for (Link l : v.keySet()) {
            JSONObject lo = new JSONObject();
            lo.put("link", l.id());
            lo.put("direction", routes.get(nm).get(l).toString());
            links.add(lo);
        }
        ao.put("links", links);
        a.add(ao);
    }
    o.put(ROUTES_LABEL, a);
    return o;
}

Example 5 with Link

use of org.btrplace.model.view.network.Link in project scheduler by btrplace.

the class StaticRoutingConverter method fromJSON.

@Override
public StaticRouting fromJSON(Model mo, JSONObject o) throws JSONConverterException {
    Network v = Network.get(mo);
    TIntObjectMap<Link> idToLink = new TIntObjectHashMap<>();
    for (Link l : v.getLinks()) {
        idToLink.put(l.id(), l);
    }
    StaticRouting r = new StaticRouting();
    checkKeys(o, ROUTES_LABEL);
    JSONArray a = (JSONArray) o.get(ROUTES_LABEL);
    for (Object ao : a) {
        StaticRouting.NodesMap nm = nodesMapFromJSON(mo, (JSONObject) ((JSONObject) ao).get("nodes_map"));
        Map<Link, Boolean> links = new LinkedHashMap<>();
        JSONArray aoa = (JSONArray) ((JSONObject) ao).get("links");
        for (Object aoao : aoa) {
            links.put(idToLink.get(requiredInt((JSONObject) aoao, "link")), Boolean.valueOf(requiredString((JSONObject) aoao, "direction")));
        }
        r.setStaticRoute(nm, links);
    }
    return r;
}