2 * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.md.controller.topology.manager;
10 import java.util.concurrent.ExecutionException;
12 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
13 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
15 import org.opendaylight.controller.sal.binding.api.AbstractBindingAwareProvider;
16 import org.opendaylight.controller.sal.binding.api.BindingAwareBroker.ProviderContext;
17 import org.opendaylight.controller.sal.binding.api.NotificationProviderService;
18 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
19 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TopologyId;
20 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
21 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyBuilder;
22 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
23 import org.opendaylight.yangtools.concepts.ListenerRegistration;
24 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
25 import org.opendaylight.yangtools.yang.binding.NotificationListener;
26 import org.osgi.framework.BundleContext;
27 import org.slf4j.Logger;
28 import org.slf4j.LoggerFactory;
30 public class FlowCapableTopologyProvider extends AbstractBindingAwareProvider implements AutoCloseable {
31 private final static Logger LOG = LoggerFactory.getLogger(FlowCapableTopologyProvider.class);
32 private ListenerRegistration<NotificationListener> listenerRegistration;
33 private Thread thread;
36 * Gets called on start of a bundle.
41 public synchronized void onSessionInitiated(final ProviderContext session) {
42 final DataBroker dataBroker = session.getSALService(DataBroker.class);
43 final NotificationProviderService notificationService = session.getSALService(NotificationProviderService.class);
45 final String name = "flow:1";
46 final TopologyKey key = new TopologyKey(new TopologyId(name));
47 final InstanceIdentifier<Topology> path = InstanceIdentifier
48 .create(NetworkTopology.class)
49 .child(Topology.class, key);
51 final OperationProcessor processor = new OperationProcessor(dataBroker);
52 final FlowCapableTopologyExporter listener = new FlowCapableTopologyExporter(processor, path);
53 this.listenerRegistration = notificationService.registerNotificationListener(listener);
55 final ReadWriteTransaction tx = dataBroker.newReadWriteTransaction();
56 tx.put(LogicalDatastoreType.OPERATIONAL, path, new TopologyBuilder().setKey(key).build(), true);
59 } catch (InterruptedException | ExecutionException e) {
60 LOG.warn("Initial topology export failed, continuing anyway", e);
63 thread = new Thread(processor);
64 thread.setDaemon(true);
65 thread.setName("FlowCapableTopologyExporter-" + name);
70 public synchronized void close() throws InterruptedException {
71 LOG.info("FlowCapableTopologyProvider stopped.");
72 if (this.listenerRegistration != null) {
74 this.listenerRegistration.close();
75 } catch (Exception e) {
76 LOG.error("Failed to close listener registration", e);
78 listenerRegistration = null;
88 * Gets called during stop bundle
90 * @param context The execution context of the bundle being stopped.
93 public void stopImpl(final BundleContext context) {
96 } catch (InterruptedException e) {
97 LOG.error("Failed to stop provider", e);