-/*
- * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-package org.opendaylight.md.controller.topology.manager;
-
-import java.util.concurrent.ExecutionException;
-
-import org.opendaylight.controller.md.sal.binding.api.DataBroker;
-import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
-import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.controller.sal.binding.api.AbstractBindingAwareProvider;
-import org.opendaylight.controller.sal.binding.api.BindingAwareBroker.ProviderContext;
-import org.opendaylight.controller.sal.binding.api.NotificationProviderService;
-import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
-import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TopologyId;
-import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
-import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyBuilder;
-import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
-import org.opendaylight.yangtools.concepts.ListenerRegistration;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-import org.opendaylight.yangtools.yang.binding.NotificationListener;
-import org.osgi.framework.BundleContext;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-public class FlowCapableTopologyProvider extends AbstractBindingAwareProvider implements AutoCloseable {
- private final static Logger LOG = LoggerFactory.getLogger(FlowCapableTopologyProvider.class);
- private ListenerRegistration<NotificationListener> listenerRegistration;
- private Thread thread;
-
- /**
- * Gets called on start of a bundle.
- *
- * @param session
- */
- @Override
- public synchronized void onSessionInitiated(final ProviderContext session) {
- final DataBroker dataBroker = session.getSALService(DataBroker.class);
- final NotificationProviderService notificationService = session.getSALService(NotificationProviderService.class);
-
- final String name = "flow:1";
- final TopologyKey key = new TopologyKey(new TopologyId(name));
- final InstanceIdentifier<Topology> path = InstanceIdentifier
- .create(NetworkTopology.class)
- .child(Topology.class, key);
-
- final OperationProcessor processor = new OperationProcessor(dataBroker);
- final FlowCapableTopologyExporter listener = new FlowCapableTopologyExporter(processor, path);
- this.listenerRegistration = notificationService.registerNotificationListener(listener);
-
- final ReadWriteTransaction tx = dataBroker.newReadWriteTransaction();
- tx.put(LogicalDatastoreType.OPERATIONAL, path, new TopologyBuilder().setKey(key).build(), true);
- try {
- tx.submit().get();
- } catch (InterruptedException | ExecutionException e) {
- LOG.warn("Initial topology export failed, continuing anyway", e);
- }
-
- thread = new Thread(processor);
- thread.setDaemon(true);
- thread.setName("FlowCapableTopologyExporter-" + name);
- thread.start();
- }
-
- @Override
- public synchronized void close() throws InterruptedException {
- LOG.info("FlowCapableTopologyProvider stopped.");
- if (this.listenerRegistration != null) {
- try {
- this.listenerRegistration.close();
- } catch (Exception e) {
- LOG.error("Failed to close listener registration", e);
- }
- listenerRegistration = null;
- }
- if (thread != null) {
- thread.interrupt();
- thread.join();
- thread = null;
- }
- }
-
- /**
- * Gets called during stop bundle
- *
- * @param context The execution context of the bundle being stopped.
- */
- @Override
- public void stopImpl(final BundleContext context) {
- try {
- this.close();
- } catch (InterruptedException e) {
- LOG.error("Failed to stop provider", e);
- }
- }
-}