*/
package org.opendaylight.openflowplugin.applications.topology.manager;
-import com.google.common.base.Optional;
+import com.google.common.util.concurrent.Futures;
+import com.google.common.util.concurrent.ListenableFuture;
+import java.util.Optional;
import java.util.concurrent.ExecutionException;
-import org.opendaylight.controller.md.sal.binding.api.DataBroker;
-import org.opendaylight.controller.md.sal.binding.api.ReadTransaction;
-import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
-import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
-import org.opendaylight.controller.sal.binding.api.NotificationProviderService;
+import javax.annotation.PostConstruct;
+import javax.annotation.PreDestroy;
+import javax.inject.Inject;
+import javax.inject.Singleton;
+import org.apache.aries.blueprint.annotation.service.Reference;
+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.slf4j.Logger;
import org.slf4j.LoggerFactory;
-public class FlowCapableTopologyProvider implements AutoCloseable {
+@Singleton
+public 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";
private final DataBroker dataBroker;
- private final NotificationProviderService notificationService;
+ private final NotificationService notificationService;
private final OperationProcessor processor;
+ private final ClusterSingletonServiceProvider clusterSingletonServiceProvider;
+ private InstanceIdentifier<Topology> topologyPathIID;
+ private TransactionChainManager transactionChainManager;
private ListenerRegistration<NotificationListener> listenerRegistration;
+ private ClusterSingletonServiceRegistration singletonServiceRegistration;
- public FlowCapableTopologyProvider(DataBroker dataBroker, NotificationProviderService notificationService,
- OperationProcessor processor) {
+ @Inject
+ public FlowCapableTopologyProvider(@Reference final DataBroker dataBroker,
+ @Reference final NotificationService notificationService,
+ final OperationProcessor processor,
+ @Reference final ClusterSingletonServiceProvider
+ clusterSingletonServiceProvider) {
this.dataBroker = dataBroker;
this.notificationService = notificationService;
this.processor = processor;
+ this.clusterSingletonServiceProvider = clusterSingletonServiceProvider;
}
/**
* Gets called on start of a bundle.
*/
+ @PostConstruct
public void start() {
final TopologyKey key = new TopologyKey(new TopologyId(TOPOLOGY_ID));
- final InstanceIdentifier<Topology> path = InstanceIdentifier
- .create(NetworkTopology.class)
- .child(Topology.class, key);
+ this.topologyPathIID = InstanceIdentifier.create(NetworkTopology.class).child(Topology.class, key);
- final FlowCapableTopologyExporter listener = new FlowCapableTopologyExporter(processor, path);
+ final FlowCapableTopologyExporter listener = new FlowCapableTopologyExporter(processor, topologyPathIID);
this.listenerRegistration = notificationService.registerNotificationListener(listener);
+ this.transactionChainManager = new TransactionChainManager(dataBroker, TOPOLOGY_PROVIDER);
+ this.transactionChainManager.activateTransactionManager();
+ this.transactionChainManager.initialSubmitWriteTransaction();
+ this.singletonServiceRegistration = this.clusterSingletonServiceProvider.registerClusterSingletonService(this);
+ LOG.info("Topology Manager service started.");
+ }
- if(!isFlowTopologyExist(dataBroker, path)){
- 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);
- }
+ @Override
+ @PreDestroy
+ public void close() {
+ this.transactionChainManager.close();
+ if (this.listenerRegistration != null) {
+ LOG.info("Closing notification listener registration.");
+ this.listenerRegistration.close();
+ this.listenerRegistration = null;
}
- LOG.info("FlowCapableTopologyProvider started");
+ if (this.singletonServiceRegistration != null) {
+ LOG.info("Closing clustering singleton service registration.");
+ this.singletonServiceRegistration.close();
+ this.singletonServiceRegistration = null;
+ }
+ LOG.debug("Topology Manager instance is stopped.");
}
@Override
- public void close() {
- LOG.info("FlowCapableTopologyProvider stopped.");
- if (this.listenerRegistration != null) {
- try {
- this.listenerRegistration.close();
- } catch (Exception e) {
- LOG.warn("Failed to close listener registration: {}", e.getMessage());
- LOG.debug("Failed to close listener registration.. ", e);
- }
- listenerRegistration = null;
+ 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);
}
}
- private boolean isFlowTopologyExist(final DataBroker dataBroker,
- final InstanceIdentifier<Topology> path) {
- final ReadTransaction tx = dataBroker.newReadOnlyTransaction();
+ @Override
+ 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 {
- Optional<Topology> ofTopology = tx.read(LogicalDatastoreType.OPERATIONAL, path).checkedGet();
- LOG.debug("OpenFlow topology exist in the operational data store at {}",path);
- if(ofTopology.isPresent()){
+ Optional<Topology> ofTopology = this.transactionChainManager
+ .readFromTransaction(LogicalDatastoreType.OPERATIONAL, path).get();
+ LOG.debug("OpenFlow topology exist in the operational data store at {}", path);
+ if (ofTopology.isPresent()) {
return true;
}
- } catch (ReadFailedException e) {
+ } catch (InterruptedException | ExecutionException e) {
LOG.warn("OpenFlow topology read operation failed!", e);
}
return false;
Code Review / openflowplugin.git / blobdiff