*/
package org.opendaylight.openflowplugin.applications.topology.manager;
-import java.util.concurrent.ExecutionException;
+import static java.util.Objects.requireNonNull;
-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 com.google.common.util.concurrent.Futures;
+import com.google.common.util.concurrent.ListenableFuture;
+import java.util.Optional;
+import java.util.concurrent.ExecutionException;
+import javax.annotation.PreDestroy;
+import javax.inject.Inject;
+import javax.inject.Singleton;
+import org.opendaylight.mdsal.binding.api.DataBroker;
+import org.opendaylight.mdsal.binding.api.NotificationService;
+import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
+import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonService;
+import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider;
+import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceRegistration;
+import org.opendaylight.mdsal.singleton.common.api.ServiceGroupIdentifier;
+import org.opendaylight.openflowplugin.common.txchain.TransactionChainManager;
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.concepts.Registration;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-import org.opendaylight.yangtools.yang.binding.NotificationListener;
-import org.osgi.framework.BundleContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
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;
- private LinkChangeListenerImpl linkChangeListener;
- private NodeChangeListenerImpl nodeChangeListener;
+@Singleton
+@Component(service = { })
+public final class FlowCapableTopologyProvider implements ClusterSingletonService, AutoCloseable {
+ private static final Logger LOG = LoggerFactory.getLogger(FlowCapableTopologyProvider.class);
+ private static final String TOPOLOGY_PROVIDER = "ofp-topology-manager";
+ static final String TOPOLOGY_ID = "flow:1";
- /**
- * 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);
+ private final InstanceIdentifier<Topology> topologyPathIID;
+ private final TransactionChainManager transactionChainManager;
+ private final OperationProcessor processor;
- 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);
+ private Registration listenerRegistration;
+ private ClusterSingletonServiceRegistration singletonServiceRegistration;
- final OperationProcessor processor = new OperationProcessor(dataBroker);
- final FlowCapableTopologyExporter listener = new FlowCapableTopologyExporter(processor, path);
- this.listenerRegistration = notificationService.registerNotificationListener(listener);
- linkChangeListener = new LinkChangeListenerImpl(dataBroker, processor);
- nodeChangeListener = new NodeChangeListenerImpl(dataBroker, processor);
+ @Inject
+ @Activate
+ public FlowCapableTopologyProvider(@Reference final DataBroker dataBroker,
+ @Reference final NotificationService notificationService,
+ @Reference final ClusterSingletonServiceProvider clusterSingletonServiceProvider,
+ @Reference final OperationProcessor processor) {
+ this.processor = requireNonNull(processor);
+ final TopologyKey key = new TopologyKey(new TopologyId(TOPOLOGY_ID));
+ topologyPathIID = InstanceIdentifier.create(NetworkTopology.class).child(Topology.class, key);
- 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();
+ listenerRegistration = notificationService.registerCompositeListener(
+ new FlowCapableTopologyExporter(processor, topologyPathIID).toListener());
+ transactionChainManager = new TransactionChainManager(dataBroker, TOPOLOGY_PROVIDER);
+ transactionChainManager.activateTransactionManager();
+ transactionChainManager.initialSubmitWriteTransaction();
+ singletonServiceRegistration = clusterSingletonServiceProvider.registerClusterSingletonService(this);
+ LOG.info("Topology Manager service started.");
}
+ @PreDestroy
+ @Deactivate
@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);
- }
+ public void close() {
+ transactionChainManager.close();
+ if (listenerRegistration != null) {
+ LOG.info("Closing notification listener registration.");
+ listenerRegistration.close();
listenerRegistration = null;
}
- unregisterListener(linkChangeListener);
- unregisterListener(nodeChangeListener);
- if (thread != null) {
- thread.interrupt();
- thread.join();
- thread = null;
+
+ if (singletonServiceRegistration != null) {
+ LOG.info("Closing clustering singleton service registration.");
+ singletonServiceRegistration.close();
+ singletonServiceRegistration = null;
}
+ LOG.info("Topology Manager instance is stopped.");
}
- private void unregisterListener(final AutoCloseable listenerToClose) {
- if (listenerToClose != null) {
- try {
- listenerToClose.close();
- } catch (Exception e) {
- LOG.error("Failed to close listener registration", e);
- }
+ @Override
+ public void instantiateServiceInstance() {
+ LOG.debug("Topology Manager instance is elected as an active instance.");
+ if (!isFlowTopologyExist(topologyPathIID)) {
+ transactionChainManager.writeToTransaction(LogicalDatastoreType.OPERATIONAL, topologyPathIID,
+ new TopologyBuilder().withKey(new TopologyKey(new TopologyId(TOPOLOGY_ID))).build(), true);
+ transactionChainManager.submitTransaction();
+ LOG.info("Topology node {} is successfully written to the operational datastore.", TOPOLOGY_ID);
}
}
- /**
- * Gets called during stop bundle
- *
- * @param context The execution context of the bundle being stopped.
- */
@Override
- public void stopImpl(final BundleContext context) {
+ public ListenableFuture<? extends Object> closeServiceInstance() {
+ return Futures.immediateFuture(null);
+ }
+
+ @Override
+ public ServiceGroupIdentifier getIdentifier() {
+ return ServiceGroupIdentifier.create(TOPOLOGY_PROVIDER);
+ }
+
+ private boolean isFlowTopologyExist(final InstanceIdentifier<Topology> path) {
try {
- this.close();
- } catch (InterruptedException e) {
- LOG.error("Failed to stop provider", e);
+ Optional<Topology> ofTopology = transactionChainManager
+ .readFromTransaction(LogicalDatastoreType.OPERATIONAL, path).get();
+ LOG.debug("OpenFlow topology exist in the operational data store at {}", path);
+ if (ofTopology.isPresent()) {
+ return true;
+ }
+ } catch (InterruptedException | ExecutionException e) {
+ LOG.warn("OpenFlow topology read operation failed!", e);
}
+ return false;
}
}
Code Review / openflowplugin.git / blobdiff