*/
package org.opendaylight.ovsdb.southbound;
+import com.google.common.base.Optional;
+import com.google.common.util.concurrent.CheckedFuture;
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.clustering.CandidateAlreadyRegisteredException;
+import org.opendaylight.controller.md.sal.common.api.clustering.Entity;
+import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipCandidateRegistration;
+import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipChange;
+import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipListener;
+import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipListenerRegistration;
+import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipService;
+import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipState;
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.BindingAwareBroker.ProviderContext;
-import org.opendaylight.controller.sal.binding.api.BindingAwareProvider;
+import org.opendaylight.controller.sal.core.api.model.SchemaService;
import org.opendaylight.ovsdb.lib.OvsdbConnection;
-import org.opendaylight.ovsdb.lib.impl.OvsdbConnectionService;
import org.opendaylight.ovsdb.southbound.transactions.md.TransactionInvoker;
import org.opendaylight.ovsdb.southbound.transactions.md.TransactionInvokerImpl;
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.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.binding.data.codec.api.BindingNormalizedNodeSerializer;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
-import com.google.common.base.Optional;
-import com.google.common.util.concurrent.CheckedFuture;
-
-public class SouthboundProvider implements BindingAwareProvider, AutoCloseable {
+public class SouthboundProvider implements AutoCloseable {
private static final Logger LOG = LoggerFactory.getLogger(SouthboundProvider.class);
- private DataBroker db;
+ private static final String ENTITY_TYPE = "ovsdb-southbound-provider";
+
+ public static DataBroker getDb() {
+ return db;
+ }
+
+ private static DataBroker db;
private OvsdbConnectionManager cm;
- private OvsdbNodeDataChangeListener ovsdbNodeListener;
- private OvsdbManagedNodeDataChangeListener ovsdbManagedNodeListener;
- private OvsdbTerminationPointDataChangeListener ovsdbTerminationPointListener;
private TransactionInvoker txInvoker;
+ private OvsdbDataTreeChangeListener ovsdbDataTreeChangeListener;
+ private EntityOwnershipService entityOwnershipService;
+ private EntityOwnershipCandidateRegistration registration;
+ private SouthboundPluginInstanceEntityOwnershipListener providerOwnershipChangeListener;
+ private OvsdbConnection ovsdbConnection;
+ public SouthboundProvider(final DataBroker dataBroker,
+ final EntityOwnershipService entityOwnershipServiceDependency,
+ final OvsdbConnection ovsdbConnection,
+ final SchemaService schemaService,
+ final BindingNormalizedNodeSerializer bindingNormalizedNodeSerializer) {
+ this.db = dataBroker;
+ this.entityOwnershipService = entityOwnershipServiceDependency;
+ registration = null;
+ this.ovsdbConnection = ovsdbConnection;
- @Override
- public void onSessionInitiated(ProviderContext session) {
+ SouthboundUtil.setInstanceIdentifierCodec(new InstanceIdentifierCodec(schemaService,
+ bindingNormalizedNodeSerializer));
+ LOG.info("SouthboundProvider ovsdbConnectionService: {}", ovsdbConnection);
+ }
+
+ /**
+ * Used by blueprint when starting the container.
+ */
+ public void init() {
LOG.info("SouthboundProvider Session Initiated");
- db = session.getSALService(DataBroker.class);
this.txInvoker = new TransactionInvokerImpl(db);
- cm = new OvsdbConnectionManager(db,txInvoker);
- ovsdbNodeListener = new OvsdbNodeDataChangeListener(db, cm);
- ovsdbManagedNodeListener = new OvsdbManagedNodeDataChangeListener(db, cm);
- ovsdbTerminationPointListener = new OvsdbTerminationPointDataChangeListener(db, cm);
- initializeOvsdbTopology(LogicalDatastoreType.OPERATIONAL);
- initializeOvsdbTopology(LogicalDatastoreType.CONFIGURATION);
- OvsdbConnection ovsdbConnection = new OvsdbConnectionService();
- ovsdbConnection.registerConnectionListener(cm);
- ovsdbConnection.startOvsdbManager(SouthboundConstants.DEFAULT_OVSDB_PORT);
+ cm = new OvsdbConnectionManager(db,txInvoker,entityOwnershipService, ovsdbConnection);
+ ovsdbDataTreeChangeListener = new OvsdbDataTreeChangeListener(db, cm);
+
+ //Register listener for entityOnwership changes
+ providerOwnershipChangeListener =
+ new SouthboundPluginInstanceEntityOwnershipListener(this,this.entityOwnershipService);
+ entityOwnershipService.registerListener(ENTITY_TYPE,providerOwnershipChangeListener);
+
+ //register instance entity to get the ownership of the provider
+ Entity instanceEntity = new Entity(ENTITY_TYPE, ENTITY_TYPE);
+ try {
+ Optional<EntityOwnershipState> ownershipStateOpt = entityOwnershipService.getOwnershipState(instanceEntity);
+ registration = entityOwnershipService.registerCandidate(instanceEntity);
+ if (ownershipStateOpt.isPresent()) {
+ EntityOwnershipState ownershipState = ownershipStateOpt.get();
+ if (ownershipState.hasOwner() && !ownershipState.isOwner()) {
+ ovsdbConnection.registerConnectionListener(cm);
+ ovsdbConnection.startOvsdbManager(SouthboundConstants.DEFAULT_OVSDB_PORT);
+ LOG.info("*This* instance of OVSDB southbound provider is set as a SLAVE instance");
+ }
+ }
+ } catch (CandidateAlreadyRegisteredException e) {
+ LOG.warn("OVSDB Southbound Provider instance entity {} was already "
+ + "registered for ownership", instanceEntity, e);
+ }
}
@Override
- public void close() throws Exception {
+ public void close() {
LOG.info("SouthboundProvider Closed");
cm.close();
- ovsdbNodeListener.close();
- ovsdbManagedNodeListener.close();
- ovsdbTerminationPointListener.close();
+ ovsdbDataTreeChangeListener.close();
+ registration.close();
+ providerOwnershipChangeListener.close();
}
private void initializeOvsdbTopology(LogicalDatastoreType type) {
InstanceIdentifier<Topology> path = InstanceIdentifier
.create(NetworkTopology.class)
.child(Topology.class, new TopologyKey(SouthboundConstants.OVSDB_TOPOLOGY_ID));
+ initializeTopology(type);
ReadWriteTransaction transaction = db.newReadWriteTransaction();
- initializeTopology(transaction,type);
CheckedFuture<Optional<Topology>, ReadFailedException> ovsdbTp = transaction.read(type, path);
try {
- if(!ovsdbTp.get().isPresent()) {
+ if (!ovsdbTp.get().isPresent()) {
TopologyBuilder tpb = new TopologyBuilder();
tpb.setTopologyId(SouthboundConstants.OVSDB_TOPOLOGY_ID);
transaction.put(type, path, tpb.build());
transaction.cancel();
}
} catch (Exception e) {
- LOG.error("Error initializing ovsdb topology {}",e);
+ LOG.error("Error initializing ovsdb topology", e);
+ }
+ }
+
+ private void initializeTopology(LogicalDatastoreType type) {
+ ReadWriteTransaction transaction = db.newReadWriteTransaction();
+ InstanceIdentifier<NetworkTopology> path = InstanceIdentifier.create(NetworkTopology.class);
+ CheckedFuture<Optional<NetworkTopology>, ReadFailedException> topology = transaction.read(type,path);
+ try {
+ if (!topology.get().isPresent()) {
+ NetworkTopologyBuilder ntb = new NetworkTopologyBuilder();
+ transaction.put(type,path,ntb.build());
+ transaction.submit();
+ } else {
+ transaction.cancel();
+ }
+ } catch (Exception e) {
+ LOG.error("Error initializing ovsdb topology", e);
+ }
+ }
+
+ public void handleOwnershipChange(EntityOwnershipChange ownershipChange) {
+ if (ownershipChange.isOwner()) {
+ LOG.info("*This* instance of OVSDB southbound provider is set as a MASTER instance");
+ LOG.info("Initialize OVSDB topology {} in operational and config data store if not already present",
+ SouthboundConstants.OVSDB_TOPOLOGY_ID);
+ initializeOvsdbTopology(LogicalDatastoreType.OPERATIONAL);
+ initializeOvsdbTopology(LogicalDatastoreType.CONFIGURATION);
+ } else {
+ LOG.info("*This* instance of OVSDB southbound provider is set as a SLAVE instance");
}
+ ovsdbConnection.registerConnectionListener(cm);
+ ovsdbConnection.startOvsdbManager(SouthboundConstants.DEFAULT_OVSDB_PORT);
}
- private void initializeTopology(ReadWriteTransaction t, LogicalDatastoreType type) {
- InstanceIdentifier<NetworkTopology> path = InstanceIdentifier
- .create(NetworkTopology.class);
- CheckedFuture<Optional<NetworkTopology>, ReadFailedException> tp = t.read(type,path);
- try {
- if(!tp.get().isPresent()) {
- NetworkTopologyBuilder ntb = new NetworkTopologyBuilder();
- t.put(type,path,ntb.build());
- }
- } catch (Exception e) {
- LOG.error("Error initializing ovsdb topology {}",e);
- }
+ private class SouthboundPluginInstanceEntityOwnershipListener implements EntityOwnershipListener {
+ private SouthboundProvider sp;
+ private EntityOwnershipListenerRegistration listenerRegistration;
+
+ SouthboundPluginInstanceEntityOwnershipListener(SouthboundProvider sp,
+ EntityOwnershipService entityOwnershipService) {
+ this.sp = sp;
+ listenerRegistration = entityOwnershipService.registerListener(ENTITY_TYPE, this);
+ }
+
+ public void close() {
+ this.listenerRegistration.close();
+ }
+
+ @Override
+ public void ownershipChanged(EntityOwnershipChange ownershipChange) {
+ sp.handleOwnershipChange(ownershipChange);
+ }
}
+
}
Code Review / ovsdb.git / blobdiff